Loading…
Welcome to the interactive web schedule for the 2019 Midwest Fish & Wildlife Conference! Please note, this event has passed. To return to the main Conference website, go to: www.midwestfw.org.

For tips on navigating this schedule, click HELPFUL INFO below.

CONFERENCE SCHEDULE UPDATES & CHANGES: As a result of the prolonged government shutdown, we experienced a number of cancellations and changes to the schedule. Cancellations and changes are listed here (as of January 26, 2019). 

Sign up or log in to bookmark your favorites and sync them to your phone or calendar.

River/Stream [clear filter]
Monday, January 28
 

10:20am EST

(CANCELLED) (FISHERIES: BEHAVIOR & PHYSIOLOGY) Metabolism and Movement: A Link to Partial Migration in Brook Trout
AUTHORS: Jacob E. Bowman, Jill B.K. Leonard – Northern Michigan University.

ABSTRACT: Brook trout (Salvelinus fontinalis) express variability in movement strategies, including partial migration. Partial migration has gained attention because individuals that migrate can express polymorphism, growing larger than their stream counterparts. Partial migration and life history-related movement strategies may be related to individual variability in metabolic parameters; however, this has not been well documented in the field. We performed field metabolic rate determination on native brook trout in the Rock River in Alger County Michigan during spring and summer 2018, including both resting and active metrics. Brook trout were then tracked using PIT tags with stationary and backpack telemetry throughout the summer with a 46% recapture rate. Movement patterns were compared to metabolic rate rankings within fish. Each fish’s metabolic status was ranked relative to other individuals measured. The continuous field resting and field maximum measures were positively related (p<0.0001). The ranking sytem held this same correlation (p<0.0001). This relationship in metabolic parameters follows what is expected in individual variation of metabolism. Our work will allow us to understand at what level individual variation in metabolic phenotypes and associated movement phenotypes are related. This research will contribute to understanding the resiliency of valued life history strategies and morphotypes such as migration.

Monday January 28, 2019 10:20am - 10:40am EST
CENTER STREET ROOM C

10:40am EST

(FISHERIES: LIGHTNING TALK) Influence of Mink Predation on Brown Trout Survival and Size-Structure in Rapid Creek, South Dakota
AUTHORS: Austin G. Galinat, South Dakota State University; Steven R. Chipps, USGS South Dakota Cooperative Fish and Wildlife Unit ; Jonathan A. Jenks, South Dakota State University

ABSTRACT: In the early 2000’s, annual population surveys indicated that abundance of adult brown trout (Salmo trutta; >200 mm) in Rapid Creek, South Dakota had declined by approximately 70% and currently, the factors influencing survival are poorly understood. Recent studies show that growth and condition of brown trout in Rapid Creek are high compared to other Black Hills populations and diet analysis shows that food availability is an unlikely source of mortality. However, a recent study discovered that predation by mink (Mustela vison) accounted for 32% of brown trout mortality in Rapid Creek. Limited refuge habitat combined with high water clarity in Rapid Creek may enhance capture and foraging success by mink on adult trout. Moreover, the lack of stationary ice cover in tail water reaches, like that of our study area, has been linked to increased predation on trout by predators such as mink. Three experimental sites along Rapid Creek have been selected: (1) in-stream habitat improvement, (2) mink removal, and (3) control. Eight fish from each section were surgically implanted with radio transmitters and tracked for six months. Mortality has been observed at all study sites. 50% of predation in the habitat improvement site (n=4) and 25% of predation in the control site (n=2) is attributed to mink. 25% of predation in the mink removal site (n=2) is attributed to avian predators. Currently, another six month fish tracking period is underway. Survival estimates will be assessed between the three fish populations using mark-recapture survey techniques. Additionally, mink are being captured, implanted with radio transmitters, and tracked to determine movement and home ranges. Data gathered in this study will provide insight into the effectiveness of management techniques such as instream habitat improvements and predator block management on trout populations.

Monday January 28, 2019 10:40am - 10:50am EST
VETERANS MEETING ROOM A/B

10:40am EST

(SYMPOSIA-03) Testing the Role of Stream Flow on eDNA Abundance Using the Invasive Asian Clam Corbicula Spp
AUTHORS: Mark Davis, Illinois Natural History Survey; Amanda Curtis, University of Illinois; Jeremy Tiemann, Illinois Natural History Survey; Sarah Douglass, Illinois Natural History Survey; Eric Larson, University of Illinois

ABSTRACT: The efficacy of environmental DNA to assay the presence of invasive species hinges upon understanding the covariates influencing fate and transport. In lotic systems, these covariates may include biotic (e.g. invasive species density, seasonal activity patterns, etc.) and abiotic (e.g. stream discharge, temperature, ultraviolet irradiation, pH, etc.) factors, as well as their complex interactions. To better understand fate and transport of eDNA in complex lotic systems, we assessed eDNA copy number for invasive Asian clams (Corbicula spp.) in paired freshwater streams in central Illinois via a primer/probe assay. We collected eDNA samples approximately every two weeks for one year, as well as during periods of high and low discharge. At each sampling period, we collected data for a number of water quality variables (including pH, temperature, turbidity, conductivity, total dissolved solids, and salinity), and we also conducted mid-summer quadrat sampling at each site to estimate Corbicula densities. Importantly, we placed our two sampling sites at USGS stream gages in order to access continuous discharge data. We anticipated that high stream flow events could either dilute eDNA concentrations or increase eDNA concentrations by mobilizing Corbicula DNA from the sediments. We found abundance of Corbicula eDNA as copy number increased with increasing water temperatures, likely reflecting a late spring and early summer reproductive peak for this species. However, we found a weak and non-significant negative relationship between stream flow and Corbicula eDNA abundance, despite having sampled at base flow and high flow conditions across multiple seasons. As such, we conclude that stream discharge may have little effect on estimates of eDNA abundance for common stream and river species like the invasive Asian clam, although more studies should seek to evaluate the role of stream and river flow regimes on eDNA performance.

Monday January 28, 2019 10:40am - 11:00am EST
HOPE BALLROOM C

10:40am EST

(FISHERIES: GREAT LAKES 1) Using Sonar to Describe Spawning Habits of Tributary Spawning Lake Whitefish in Green Bay, Lake Michigan
AUTHORS: Andrew Ransom, Dr. Patrick Forsythe, Dr. Chris Houghton – University of Wisconsin-Green Bay

ABSTRACT: A resurgence of the Lake Whitefish (Coregonus clupeaformis) population within the waters of Green Bay has been documented in recent years despite overall low and stable numbers reported for Lake Michigan. Furthermore, large numbers of adult Lake Whitefish have been observed within major tributaries during the time of spawning in late fall. While our understanding of the ecology and behavior of Lake Whitefish in Lake Michigan is improving, knowledge gaps exist with these new river spawning ecotypes. Among these knowledge gaps are microhabitat selection in spawning locations, as well as timing and drivers of migration. In order to bridge these gaps, we used using Adaptive Resolution Imaging Sonar (ARIS) to monitor relative fish abundances in 10 sample locations with different physical characteristics (ie. flow rates and substrate type) on the Fox (n=5) and Menominee (n=5) Rivers in Wisconsin. To confirm egg deposition in spawning locations, suction sampling was also conducted throughout each river. Sampling was conducted in November and December of 2017 and 2018, in order to encompass the entire spawn period. Results will be used to influence potential restoration efforts for similar ecotypes across the Great Lakes.

Monday January 28, 2019 10:40am - 11:00am EST
CENTER STREET ROOM A

10:50am EST

(FISHERIES: LIGHTNING TALK) Effects of Dam Removal on the Community Structure of Micropterus Species in Two Midwestern Rivers
AUTHORS: Reuben D. Frey, Eastern Illinois University; Cassi Moody-Carpenter, Eastern Illinois University; Shannon Cassandra Frary Smith, University of Arkansas at Pine Bluff; Robert E. Colombo, Eastern Illinois University

ABSTRACT: Flow regimes have been altered by the construction of dams on many lotic systems in the United States. Physical habitat changes within these systems in response to changed hydrology have been observed to affect the community structures of fish species therein. Removal of dams may revert the physical habitat characteristics of an impounded reach towards that of a free-flowing river system and subsequently invite a fish community shift. I investigated the effects of two separate low-head dam removals on the Vermilion River and North Fork Vermilion River in eastern Illinois on the community structure of Smallmouth Bass (Micropterus dolomieu), Spotted Bass (Micropterus punctulatus), and Largemouth Bass (Mictropterus salmoides). Data were collected from 2012 to 2015 using multiple gear types at six study sites on each river; two sites in the below-dam reach, two sites within the impounded reach, and two sites upstream of the impounded reach. Proportional abundance (pa) of each study species was observed to differ between each reach. Smallmouth Bass in both rivers were observed to have lower proportional abundance within the impounded reaches (pa = 0.005382) and higher proportional abundance in the below-dam (pa = 0.006611) and upstream (pa = 0.007102) reaches. In contrast, Largemouth Bass showed higher proportional abundance in the impounded reaches (pa =0.018838) and lower proportional abundance in the below-dam (pa = 0.010105) and upstream (pa = 0.005356) reaches, with Spotted Bass showing a similar pattern in the Vermilion, but not in the North Fork Vermilion. Variation in proportional abundance of fish may be driven by physical habitat requirements of each species. Future research will investigate the effect of changed flow regime on available physical habitat and Micropterus species community structure following dam removal.

Monday January 28, 2019 10:50am - 11:00am EST
VETERANS MEETING ROOM A/B

11:00am EST

(SYMPOSIA-01) Using “Standard” vs. “Standardized” Sampling Methods to Evaluate Sport Fish Regulations
AUTHORS: Jeremy J. Pritt, Joseph D. Conroy – Ohio Department of Natural Resources, Division of Wildlife

ABSTRACT: In 2009, the American Fisheries Society (AFS) published a recommended set of Standard Methods, which sought to provide comparable fisheries data across North America. Since then, many agencies and researchers have adopted these standard methods. However, to evaluate regulations agencies often use long-term data produced by “standardized” methods—consistently used, long-term approaches that may have been shared among multiple agencies but that also differ from the North American Standard Methods (NASM). Significant barriers may exist for fisheries managers and researchers who consider transitioning from “standardized” methods to the NASM. Here, we illustrate important differences between “standard” and “standardized” methods in the context of evaluating sport fish regulations. To make informed decisions regarding regulation effectiveness, fisheries managers require population-specific data such as abundance, age and size structures, growth, and mortality measured before the regulation was implemented and for some period after. In some cases, the NASM may fail to provide these crucial data. To illustrate, we contrast two case studies: (1) using the NASM to evaluate reservoir crappie harvest regulations; as compared to, (2) retaining a multi-agency, non-NASM, but “standardized” method to assess the efficacy of Ohio River Sauger regulations. We conclude by recommending the following for future standard method development work: (1) explicitly consider and detail the sport fish population data needs of fisheries managers; (2) develop a mechanism to formally capture emerging assessment techniques as standard methods; and, (3) create a structure, through AFS, tasked with identifying, evaluating, and communicating accepted standard methods and their use.

Monday January 28, 2019 11:00am - 11:20am EST
HOPE BALLROOM A

11:40am EST

(CANCELLED) (FISHERIES: LIGHTNING TALK) Location, Location, Location: Identifying Preferential Drifting and Swimming Paths for Grass Carp Eggs and Larvae Under Different Flow Conditions
AUTHORS: Andres Prada, University of Illinois at Urbana-Champaign; Amy George, Ben Stahlschmidt, Duane Chapman – USGS Columbia Environmental Research Center; Rafael O. Tinoco, University of Illinois at Urbana-Champaign

ABSTRACT: To monitor and control the spread of invasive fish species, such as grass carp (Ctenopharyngodon idella), we need to know where to find them. Natural streams have complex cross sections with varied bed roughness and in-stream obstructions that alter flow conditions and influence the transport of grass carp during its early life stages. To identify how changes in mean velocity, vorticity, and turbulence levels affect the drifting and swimming patterns of eggs and larval grass carp, we conducted a series of laboratory experiments in a recirculating flume. Live diploid grass carp eggs were stocked and monitored for 80 consecutive hours. We investigated three scenarios: 1) a gravel bump, 2) vertical rigid pier, and 3) rigid submerged vegetation. We used quantitative imaging to track eggs and larvae throughout the duration of each test, obtaining their preferred spatial distribution, as well as drifting and swimming trajectories under each flow scenario. We found clear correlations between the larval spatial distributions and flow conditions characterized through particle image velocimetry. Differences between identified trajectories for eggs and larvae at various developmental stages show a clear active response to spatially heterogeneous flow fields, where larvae actively avoided areas of high shear, preferring zones of lower turbulence and low vorticity levels. Data show that there is not only a threshold mean velocity which exceeds the swimming ability of the larvae, but also thresholds for turbulence statistics that define whether the eggs or larvae can be found at specific zones in natural streams. Since the three chosen scenarios generate turbulence and coherent flow structures at multiple scales at various orientations, our findings can be applied to inform detection and capture methods in natural streams.

Monday January 28, 2019 11:40am - 11:50am EST
VETERANS MEETING ROOM A/B

1:20pm EST

(FISHERIES: RIVERS & STREAMS) Fine-scale Spatial Distribution of Resident Fish Species in Lower-order Tributaries of the Great Lakes
AUTHORS: Cynthia Nau, Dr. Patrick Forsythe – University of Wisconsin-Green Bay

ABSTRACT: Small, lower-order (1<sup>st</sup>-3<sup>rd</sup>) tributaries of the Great Lakes, including those of Green Bay and Lake Michigan, have been largely understudied relative to the open water and large rivers in the region. Nonetheless, recent research suggests that these aquatic ecosystems may play a vital role as reproductive, nursery and foraging habitat for the highly varied assemblage of fish species resident to the area. Diverse stream geomorphology and anthropogenic influences have resulted in a high degree of variation in stream condition across the watersheds of the region. This large environmental gradient allows for exploration of the ecology of resident fish species in relation to abiotic variability. The primary objective of this study is to quantify the diversity, distribution and habitat selection of resident fishes in intricate detail. This assessment has been carried out on seven Green Bay tributaries and two Lake Michigan tributaries of varying stream condition. Fish and habitat surveys were conducted over a one-kilometer reach, which was further divided into 20-meter sub-reaches using block nets. Preliminary results suggest that the fish community is a unique function of each tributary and that community composition changes as distance from the stream’s mouth increases. The detailed nature of this study will serve to inform restorative management actions, maximizing benefit to individual streams and fish species. Understudied non-game fishes may especially profit from this habitat association knowledge by allowing restoration projects to account for their species-specific requirements. Due to the vast amount of variation found in the Green Bay sub-watershed, these species to habitat relationships may be applicable to tributaries across the Great Lakes region.

Monday January 28, 2019 1:20pm - 1:40pm EST
CENTER STREET ROOM C

1:40pm EST

(FISHERIES: RIVERS & STREAMS) Seasonal Use of Riffles, Lateral Pools, and Non-Wadeable Deep Pools by Fishes in the Neosho River, Kansas
AUTHORS: Sam Schneider, David Edds – Emporia State University

ABSTRACT: Lotic ecosystems are characterized by riffle–pool mesohabitats that support discrete fish assemblages. Most previous mesohabitat studies on fishes have focused on riffles and wadeable pools in small streams, and only recently have non-wadeable, deep pool mesohabitats been examined. Previous research suggests that deep pools are vital seasonal refugia for various fish species during times of adverse physicochemical conditions, yet the deep pool fish assemblage is often not sampled during all seasons, especially winter. We are comparing fish abundance and species richness at the mesohabitat scale in riffles, shallow lateral pools, and non-wadeable deep pools in the Neosho River, Kansas, and are examining relationships between fish abundance, species richness, water temperature, dissolved oxygen, and season, with emphasis on investigating possible seasonal use of deep-pool refugia. We are using a Siamese trawl to sample these three mesohabitat types monthly at nine sites. Summer results suggest that mesohabitats are discrete depending, however, on whether catch is analyzed by m<sup>2 </sup>or m<sup>3</sup>. Riffles contain more fish per m<sup>3</sup> and more fish species per m<sup>3</sup>, but shallow lateral pools contain more species per m<sup>2</sup>. This research will provide insight on seasonal mesohabitat use and the importance of seasonal deep pool refugia in warmwater rivers of the Midwest.

Monday January 28, 2019 1:40pm - 2:00pm EST
CENTER STREET ROOM C

2:00pm EST

(SYMPOSIA-06) Beaver as a Provider of Ecological Services for Fish and Wildlife
AUTHORS: Kerry Fitzpatrick, Michigan Department of Natural Resources

ABSTRACT: Through their dam-building and feeding activities, beaver alter the hydrology, channel morphology, biogeochemical pathways, and community productivity of streams. The literature documents that streams with beaver are substantially different from those without beaver: • Beaver are a primary disturbance regime in northern hemisphere forests. They create wetlands, forest openings, and early successional patches in what would otherwise be mature forest.• Beaver ponds increase riparian habitat, create favorable conditions for aquatic plants, and sub-irrigate nearby vegetation. Riparian plant communities are biologically more diverse in the presence of beaver.• Beaver create conditions, favorable for an entire suite of wildlife species, that are in limited supply in streams without beaver. For some wildlife, beaver-created habitat is essential to maintain a large portion of their populations.• Beaver have been shown to reduce peak flood levels, maintain flow during droughts, and reduce the variability of flow compared to streams without beaver dams.• Water that flows out of beaver dams has lower turbidity and sediment levels than that entering ponds, resulting in cleaner substrates downstream than would occur without beaver.• The stair-step profile of streams with beaver have a lower kinetic gradient, which reduces scouring and erosion. Streams with a history of beaver are more braided, wider, and have larger and deeper pools.• Streams with beaver capture and process organic matter more efficiently and closer to its source than streams without beaver. High nutrient levels and solar exposure yield the high productivity associated with beaver ponds and meadows.• Water passing through beaver ponds has an elevated acid neutralizing capacity, which can modify the pH of water originating from acidic sources such as peat bogs, conifer forests, or tannic streams.Beaver are increasingly being used as an economical stream restoration tool. This presentation outlines the rationale for maintaining or re-introducing beaver for the ecological services they provide.

Monday January 28, 2019 2:00pm - 2:20pm EST
VETERANS MEETING ROOM A/B

2:00pm EST

(FISHERIES: RIVERS & STREAMS) Comparison of Geomorphological Characteristics of the Wabash and Ohio Rivers and Their Impacts on Fish Assemblages
AUTHORS: Jeff Robbins, Dr. Mark Pyron – Ball State University

ABSTRACT: Streams are continuously changing systems, which makes them a challenging aquatic environment to quantify. River ecosystem models (River Continuum Concept, Flood Pulse Concept) define streams using longitudinal or lateral gradients, but neither is effective at defining stream geomorphology links to the biota. The Riverine Ecosystem Synthesis (RES) was developed to incorporate geomorphological structures of streams in coordination with their delineation. The RES divides rivers and streams into Functional Process Zones that are repeated throughout the river using physical characteristics and other variables. The RES defines FPZs using an ArcGIS model called RESonate. The model uses geology and elevation variables to determine floodplains, valley sizes, and river channels, which are then analyzed and processed into FPZs. This GIS model is relatively novel and therefore not many macro level watersheds have been processed through RESonate. The Wabash and Ohio Rivers have a combined stretch of over 2000 km of waterway through agricultural, urban, and forested land. At this time, no rivers in the Midwest United States have been analyzed using RESonate. The Wabash and Ohio Rivers contain high fish and wildlife biodiversity that have recreational and conservational value. The RESonate model will generate FPZs for the river that were previously unknown.Fish species inhabit environments best suited to their ecology that is dictated by substrate composition, large woody debris, and local hydraulics. I plan to use the RESonate model to identify FPZs at fish collection sites where we have longterm data. One goal is to test if fish species are using specific FPZs. This technique has not yet been tested for any fish assemblages. Determining FPZs of fish species in large Midwest Rivers can help with future management and conservation goals.

Monday January 28, 2019 2:00pm - 2:20pm EST
CENTER STREET ROOM C

2:20pm EST

(SYMPOSIA-06) Early Successional Habitats in Riparian Zones
AUTHORS: Brent A. Rudolph, Ruffed Grouse Society and American Woodcock Society

ABSTRACT: Optimal trout habitat consists of clear water with low silt and fine sediments, high dissolved oxygen, and cold, relatively stable temperatures, and well-vegetated, stable stream banks. Though sunlight can enhance stream productivity, small trout streams in particular are considered optimal at 50% to 75% midday shade. To maintain these conditions, fisheries and forestry managers often apply stream buffers within which many or all silvicultural treatments are restricted or entirely prohibited. These buffers may be universally applied regardless of stream geomorphology or potential trout production, and justified as necessary safeguards of any potential enhancement of fish production. This static application of constraints on forest management, however, may exacerbate the already considerable concern regarding recent declines of early successional habitat and associated disturbance-dependent wildlife species in the eastern United States. Some habitat types highly preferred by ruffed grouse (Bonasa umbellus) and American woodcock (Scolopax minor) are highly ephemeral, and providing a sufficient amount, size, and distribution of habitat patches depends upon well-planned and sustainable rotational cutting to provide the necessary disturbance. In this presentation, I will describe the increasing obstacles forestry and wildlife managers face when attempting to apply the even-aged management most effective at producing grouse and woodcock habitat on both private and public land, and demonstrate why riparian habitats in particular are important for grouse and especially woodcock. I will then review the variable management policies regarding application of stream buffers by land management agencies in the upper Midwest/Great Lakes region, and demonstrate how different riparian buffers intersect with key forest types and restrict opportunities to create habitat. I will encourage managers to ensure that buffers are evaluated or at least objectively planned and implemented to consider such management implications in addition to promoting high quality fisheries.

Monday January 28, 2019 2:20pm - 2:40pm EST
VETERANS MEETING ROOM A/B

2:20pm EST

(FISHERIES: RIVERS & STREAMS) Recovery of Riverine Fish Assemblages After Anthropogenic Disturbances
AUTHORS: Jessica M. Rohr, Eastern Illinois University; Scott J. Meiners, Eastern Illinois University; Trent Thomas, Illinois Department of Natural Resources; Robert E. Colombo, Eastern Illinois University

ABSTRACT: Disturbances among communities are common, but the response of fish assemblages to anthropogenic fish kills is rarely investigated. To determine how rapidly, or if recovery occurs without further mitigation, complete quantification of the fish recovery process is necessitated. We evaluated the recovery of six creeks located in central Illinois, including an undisturbed control system. Pre-kill data was available for all locations, and post-kill data was available within two to six months following the perturbation. Data analysis included pre- and post-kill comparisons of species richness, catch per unit effort (CPUE), and index of biotic integrity (IBI) and non-metric multidimensional scaling (NMS) to visually compare compositional shifts. We found that richness and IBI experienced dramatic shifts within the first year after the kill, while CPUE remained relatively consistent among sampling events. Interestingly, extinction was not limited to only rare species. There were also multiple colonizations of new species that were not present prior to the perturbation. NMS revealed that some creeks experienced little compositional shift similar to that of the control system while other creeks are still experiencing large shifts. Lastly, the rate of compositional change decreased significantly over time among all locations, especially within the first year. Richness and IBI have clearly recovered from the disturbance and continue to exceed the original pre-kill values; however, assemblages in some locations have shifted into a different community structure and are continuing to change. Our results make recovery among these systems difficult to assess calling into question the predictability of the system’s response. Further functional analysis of these systems, including fish length distribution, may help to alleviate some of these discrepancies.

Monday January 28, 2019 2:20pm - 2:40pm EST
CENTER STREET ROOM C

2:40pm EST

(SYMPOSIA-06) Science to Action: Decision-Support to Advance Stream Trout Management in a Changing Climate
AUTHORS: Andrew K. Carlson, William W. Taylor – Center for Systems Integration and Sustainability, Michigan State University; Zeenatul Basher, Gulf of Mexico Fishery Management Council; T. Douglas Beard Jr., National Climate Adaptation Science Center, USGS; Dana M. Infante, Center for Systems Integration and Sustainability, Michigan State University

ABSTRACT: Decision-making with limited information is commonplace in fisheries management, stemming from the need to sustain fisheries ecosystems in the face of changing environmental and human conditions. Decision support tools (DSTs) facilitate decision-making by systematically integrating environmental and socioeconomic information and accounting for variability in human and natural systems, yet they have not been widely applied in freshwater recreational fisheries management. As such, we collaborated with fisheries research and management professionals to develop a DST – specifically, a stream prioritization tool (SPT) – to inform fisheries management amid climate change in Michigan coldwater streams inhabited Brook Trout Salvelinus fontinalis, Brown Trout Salmo trutta, and Rainbow Trout Oncorhynchus mykiss. The SPT ranked streams by synthesizing management decision-making criteria that affect trout thermal habitat quality (e.g., current and future stream temperature, relative abundance of trout, groundwater input). Productive, socioeconomically important trout streams with high thermal habitat quality such as the Au Sable and Manistee rivers were predictably the highest-ranked streams by the SPT and thus warrant continued trout population and thermal habitat management (e.g., groundwater conservation). However, certain streams currently important for recreational fishing (e.g., Muskegon River, Pere Marquette River) were projected to have relatively low thermal habitat quality by 2056, whereas other streams without top-tier fisheries (e.g., Rapid River, Davenport Creek) were predicted to have high-quality thermal habitats, suggesting they merit increased management efforts. Revealing unexpected yet management-relevant findings under different scenarios of climate change, the SPT is a flexible instrument to help sustain thermally resilient trout populations and streamline fisheries management decision-making amid climate change.

Monday January 28, 2019 2:40pm - 3:00pm EST
VETERANS MEETING ROOM A/B

2:40pm EST

(FISHERIES: RIVERS & STREAMS) The Temporal Effects of Heavy Metal Contamination on the Fish Community of the West Fork White River, Muncie, IN
AUTHORS: Drew Holloway, Muncie Sanitary District Bureau of Water Quality; Jason Doll, University of Mt. Olive; Robert Shields, Utah Division of Wildlife Resources

ABSTRACT: The importance of monitoring anthropogenic changes in a lotic system are not limited to chemical water quality monitoring. The addition of biological monitoring allows fish to be used as bioindicators because of their varying tolerance to pollution. For this study we utilized long-term water quality and fish data to evaluate temporal changes brought on by passage of the Clean Water Act (1972). Non-metric Multidimensional Scaling (NMS) was used to describe changes in the fish community and also heavy metal concentrations of the West Fork White River inMuncie, Indiana over the past 33 years. The NMS results for both heavy metals and fish separated into distinct decadal clusters. The shift in fish community data was characterized by a drop in pollution tolerant species and an increase in intolerant species. A decrease in heavy metal concentrations (chromium, zinc, and lead) was also found during this time period. All NMS fish axis had a positive slope indicating an increase in intolerant species as heavy metal concentrations decreased. Our findings indicate that the water quality improvements documented in the West Fork White River have directly impacted its local fish community. 

Monday January 28, 2019 2:40pm - 3:00pm EST
CENTER STREET ROOM C

3:20pm EST

(CANCELLED) (SYMPOSIA-06) River Restoration in Iowa ... Is There Anything Fishy Going on Here?
AUTHORS: Jeff Kopaska, Iowa Department of Natural Resources

ABSTRACT: Historical accounts of Iowa’s aquatic resources paint a picture of what Iowa’s rivers, streams and lakes were like at the time of settlement. Unfortunately, the physical and biological components of these aquatic systems had already been degraded by the time of the first scientific surveys in the late 1800s. Erosion and sedimentation issues that began in the 1800s still plague Iowa’s rivers and streams today, in the form of streamside alluvial deposits that are phosphorus laden and subject to streambank erosion. Iowa currently is undertaking efforts to reduce nutrient flux out of the state via our streams and rivers, but restoration of other components of stream ecosystems such as hydrology, geomorphology and biology is lacking. Including nutrient reduction/stream restoration practices that enhance fish populations and fish habitat can provide short term and long term measureable improvements to Iowa’s aquatic resources, as well as those downstream.

Monday January 28, 2019 3:20pm - 3:40pm EST
VETERANS MEETING ROOM A/B

3:20pm EST

(FISHERIES: INVASIVE SPECIES 1) Community Shifts in the Middle Mississippi River Relative to the Introduction of Two Hypophthalmichthys Carps
AUTHORS: Christopher Schwinghamer, Quinton Phelps, Kyle Hartman – West Virginia University

ABSTRACT: Aquatic invasive species can have broad impacts on aquatic ecosystems. Through direct and indirect competition, alteration of existing habitats, and increased predation pressure, non-native species can alter the composition of native fish communities. Two non-native carps from the genus Hypophthalmichthys, Silver H. molitrix and Bighead H. nobilis carps, were introduced into the Mississippi River Basin in the 1970’s through escape from aquaculture facilities and have established populations throughout much of the basin. Due to their planktivorous diets, these non-native invaders possess a high likelihood for competition with native fishes. This creates the potential for shifts in community composition in reaches where they are present. One such reach, in which Silver and Bighead carp established in 2004, is the Middle Mississippi River. Principal response curve analyses of the fish community data was performed to evaluate shift in community composition over time using long term monitoring data. Introductions of these carps appears to have altered native fish communities. Results suggest dramatic declines in abundance of Gizzard Shad Dorosoma cepedianum, while populations of benthic omnivores such as catfish and suckers and abundant prey species may be slightly increasing post-carp establishment. Gizzard Shad, a highly abundant prey species, represent the most abundant native planktivore who likely share the largest dietary overlap and thus highest intensity of competition with the carps. While some species may be experiencing increased abundances, the magnitude of their increase in far exceeded by the declines in Gizzard Shad populations. As such, proper management of invasive carp populations is vital to maintaining healthy fish communities in the Middle Mississippi River.

Monday January 28, 2019 3:20pm - 3:40pm EST
HOPE BALLROOM C

3:20pm EST

(FISHERIES: FISH CONSERVATION) Distributions Across an Island: Using SDMs to Conserve an Imperiled Sucker
AUTHORS: Seth J. Fopma, South Dakota State University; Brian D.S. Graeb, South Dakota State University; Tammy Wilson, National Park Service

ABSTRACT: Described as an “island on the prairie” the Black Hills are a small range of mountains arising from a sea of short and mid-grass prairies. Upwelling from the center of the hills, flowing outward are numerous, cold-water streams lacking connectivity to regional cold-water networks. Many species that inhabit local streams are subsequently isolated from conspecific populations, posing unique management challenges. Climate change, predicted to alter local climatic patterns (intensified wet and dry cycles, general warming), potentially further limits species distributions within the island. Mountain Sucker (Catostomus platyrhynchus) is listed as a management indicator species for the Black Hills of South Dakota by South Dakota’s department of Game Fish and Parks, and is used as a proxy for regional ecosystem health. Surveys conducted between 2008 and 2010 revealed that populations had been in decline in both distribution and local abundance. Population surveys conducted between 2014 and 2017 were used to generate species distribution models (SDMs) for this regionally imperiled species. Model predictions are expected to be driven by stream permanency and connectivity. Predictions were compared to 2018 empirical observations to assess model accuracy. Accurate models allow managers to more efficiently identify local populations, impacts of climate change and target conservation efforts.

Monday January 28, 2019 3:20pm - 3:40pm EST
CENTER STREET ROOM C

3:40pm EST

(SYMPOSIA-06) How Do Beavers Affect Trout Populations? Well, it depends…
AUTHORS: Troy Zorn, Michigan Department of Natural Resources Fisheries Division

ABSTRACT: Most published studies do not provide a complete understanding of the effects of beavers on trout populations and streams.  Results often vary by location, with some studies characterizing beavers as beneficial to trout populations and others indicating beavers are harmful.  Drawing on case studies throughout the Midwest and North America, I will attempt to explain what underlies these seemingly contradictory findings.  For example, groundwater availability and inputs drive many Midwestern trout streams, and a thorough understanding of these processes is critical for understanding how beaver dams will affect trout populations.  Understanding the factors that shape trout streams in other regions will provide the context needed for interpreting an array of studies examining beaver-trout relationships and will enable managers to better predict how beavers might affect trout streams in their region.

Monday January 28, 2019 3:40pm - 4:00pm EST
VETERANS MEETING ROOM A/B

4:00pm EST

(SYMPOSIA-06) Minnesota’s Stream Conservation Easements and New Perennial Vegetation Buffer Law Overlap to Improve Riparian Habitat
AUTHORS: Jennifer A. Olson, Minnesota Department of Natural Resources, Division of Fish & Wildlife

ABSTRACT: This presentation will highlight the success of Minnesota’s stream conservation easements, a new perennial vegetation buffer law, and how the MN DNR Fisheries Section manages beaver on private land under stream easements across the state. Beaver management is targeted on high priority streams based on expected benefits and available resources. There is pressure to do both more and less beaver control depending upon location.Conservation easements are interests in real property that place certain restriction on the use of the property for conservation benefit. The easements are an agreement between the original landowner and State of Minnesota. Easements are recorded with the county government and stay with the land. Minimum requirements to hold conservation easements include completing baseline property reports, maintaining relationships with original and successive landowners, monitoring the easement on a regular basis, and enforcement of easement terms when needed.Stream conservation easements are most commonly found on trout streams in southeast and northeast Minnesota. The original landowner is compensated using a standardized formula for relinquishing certain land use rights within the stream corridor. Typical stream conservation easement terms allow public angling, the development of fish habitat, access to the stream for management activities, along with the prohibition of new buildings or structures, excavating, filling, dumping, tree cutting, etc. In some regions (southern MN), agricultural tillage setbacks are also established.Minnesota established a new perennial vegetation buffer law protecting up to 50 feet along all public waters including lakes, rivers and streams, and buffers of 16.5 feet along public ditches. The purpose is to help filter out phosphorus, nitrogen and sediment. Additional benefits exist which overlap and impact stream conservation easements. The deadline for implementation of the new buffers along all public waters was November 1, 2017. The deadline for public ditches is November 1, 2018.

Monday January 28, 2019 4:00pm - 4:20pm EST
VETERANS MEETING ROOM A/B

4:00pm EST

(FISHERIES: FISH CONSERVATION) Evaluating Remote Site Incubators: Implications for the Reintroduction of Arctic Grayling in Michigan
AUTHORS: Alan J. Mock, Carl R. Ruetz III – Annis Water Resources Institute, Grand Valley State University; Dan Mays, Archie Martell – Little River Band of Ottawa Indians

ABSTRACT: The Arctic grayling (Thymallus arcticus) was extirpated from Michigan by 1936, and subsequent efforts to reintroduce the species to Michigan have failed. However, efforts to restore the species in Montana have been successful through the use of remote site incubators (RSIs), which allow Arctic grayling to be reared and stocked at the site of introduction. Due to a renewed interest in reestablishing Arctic grayling in Michigan, we conducted a study using rainbow trout (Oncorhynchus mykiss) eggs as surrogates for Arctic grayling to evaluate RSIs in three tributaries of the Manistee River to support the reintroduction effort. We installed eight single-tank RSIs (single 19-L bucket) and one stock-tank RSI (265-L trough) at each study stream. Our objectives were to: 1) test whether the removal of dead eggs and alevins from single-tank RSIs affected hatching success, and 2) compare hatching success between two different RSI designs (i.e., single-tank and stock-tank RSIs). Survival—our measure of hatching success that accounted for swim-out and alevins that remained in RSIs—ranged from 40.3% to 42.4% (mean=41.4%) across the three study streams. Mean survival in picked RSIs (45.6%) was not significantly different from unpicked RSIs (44.4%; p>0.1).  Mean survival in stock-tank RSIs was 37.2%. Survival between stock-tank and single-tank RSIs by stream differed from 1.8% to 10.3% (mean=5.3%). Our preliminary results suggests that differences in hatching success may not be biologically relevant between the two RSI designs we tested, and that removing dead individuals from RSIs during incubation did not significantly increase hatching success.

Monday January 28, 2019 4:00pm - 4:20pm EST
CENTER STREET ROOM C

4:20pm EST

(FISHERIES: FISH CONSERVATION) Successful Translocation of Bluebreast Darters: A Case Study from the Upper Licking River, Ohio
AUTHORS: Brian J. Zimmerman, S. Mažeika P. Sullivan – The Ohio State University

ABSTRACT: Aquatic ecosystems of Ohio historically supported diverse and abundant stream and river fish communities.  Loss and fragmentation of high-quality aquatic habitat and impairments in water quality have led to significant alterations in the diversity, composition, and productivity of native fish communities. The Bluebreast Darter (Etheostoma camurum), for example, was extirpated from many Ohio river systems over a century ago. In June of 2016 and 2017, 974 and 924 adult Bluebreast Darters, respectively, were translocated from the greater Muskingum River basin into the upper Licking River. Translocated individuals were marked with visible implant elastomer (VIE) tags. Translocated individuals from both events continue to be recaptured in follow-up surveys, most recently in late August 2018. VIE tags revealed minimal movement between release sites, however a few individuals have traveled as far as nine river kilometers following translocation. Natural reproduction by translocated fish has been documented by the capture of untagged individuals beginning in the first follow up surveys in 2016 and continues to be observed in subsequent years.

Monday January 28, 2019 4:20pm - 4:40pm EST
CENTER STREET ROOM C

4:20pm EST

(FISHERIES: HABITAT) The Influence of Season and Streamflow on Habitat Selection of Spotted Bass and Shorthead Redhorse Downstream of a Hydropeaking Dam in Central Missouri, USA
AUTHORS: Elisa Baebler, Missouri Cooperative Fish and Wildlife Research Unit, The School of Natural Resources, University of Missouri; Craig Paukert, U.S. Geological Survey, Missouri Cooperative Fish and Wildlife Research Unit, The School of Natural Resources, University of Missouri

ABSTRACT: Downstream of hydropeaking dams, water depth and velocity fluctuate rapidly, which leads to short-term changes in physical habitat supporting aquatic organisms. While some fish species have been extirpated from flow-regulated systems, other species flourish, which may be related to the persistence of critical habitats complementary to these life histories. We used radio telemetry to evaluate the influence of season and streamflow on the habitat selection of two common, native fishes downstream of Bagnell Dam in central Missouri from April 2016 to June 2017. We studied Spotted Bass (Micropterus punctulatus), nest-guarding, sight feeding, habitat generalists and Shorthead Redhorse (Moxostoma macrolepidotum), fluvial dependent, migratory, benthic feeders. Spotted Bass selected moderate depths near submerged cover in all seasons and slow velocities during spring and summer. Conversely, Shorthead Redhorse preferred moderately deep and faster flowing habitats during spring and summer and used slow velocities and shallow depths during winter. Spotted Bass and Shorthead Redhorse selected velocity, depth, submerged cover, and distance to shore during stable and/or fluctuating flows, suggesting that fish may respond to streamflow over short time periods (daily). Spotted Bass used slow velocities (less than 0.4 m/s) in both fluctuating and stable flows, whereas, Shorthead Redhorse preferred fast velocities (greater than 1.0 m/s) in stable flows but did not select velocity during fluctuating flows. Shorthead Redhorse and Spotted Bass habitat selection illustrates that even native fish that prosper in regulated rivers have habitat requirements which may be better met through managing flow releases to maintain river habitats that support native fish of multiple guilds.

Monday January 28, 2019 4:20pm - 4:40pm EST
CENTER STREET ROOM B

4:40pm EST

(SYMPOSIA-01) A Portfolio Approach to Integrated Assessment and Research Can Provide a Larger Context for the Successful Evaluation of Fisheries Harvest Regulations
AUTHORS: Martha E. Mather, U. S. Geological Survey, Kansas Cooperative Fish and Wildlife Research Unit, Division of Biology, Kansas State University; John M. Dettmers, Great Lakes Fishery Commission; Roy A. Stein, Aquatic Ecology Laboratory, The Ohio State University; Donna L. Parrish, U.S. Geological Survey, Vermont Cooperative Fish and Wildlife Research Unit, University of Vermont; David Glover, U.S. Fish and Wildlife Service

ABSTRACT: Harvest regulations are essential tools that fisheries managers use to alter fish populations and achieve angler satisfaction. Evaluation of regulations is essential but evaluating all regulations for all species in all systems across multiple time periods is not logistically feasible. Thus, a strategic plan that identifies what regulations need to be evaluated where, when, and how can assist effective decision-making. Specifically, an integrated framework of assessment and research (i.e., the portfolio approach) can provide a larger context in which to design, implement, and interpret harvest regulation evaluations. Using examples, we illustrate this multi-step approach. First, a shared vision for individual fisheries (species, system, individual population, goal) that is jointly created by a collaborative group of researchers and managers is essential. Second, using a series of linked questions, objectives, and goals, the collaborative team can conceptualize (a) desired outcomes of specific harvest regulations given population characteristics, (b) challenges to achieving those outcomes, and (c) data needed to differentiate among population responses to regulations. Third, by applying a portfolio of interacting data types (e.g., assessment, applied research, basic science, synthesis), researchers and managers can operationalize a pathway to achieve the desired angler outcome given existing population conditions. Fourth, by using rigorous scientific principles, the team can improve all aspects of assessment and research. Specifically, a strategic plan that considers multiple starting population conditions, a range of harvest regulations, and different angler outcomes can integrate all assessment and research data to better inform management decisions. Fifth, adhering to a set of agreed-upon, regularly-evaluated 10-year goals allows fisheries professionals to track progress and plan next steps. Although agencies face different challenges across species, systems, and populations, all can advance successful science-based management by utilizing components of this portfolio approach for harvest regulation evaluation.

Monday January 28, 2019 4:40pm - 5:00pm EST
HOPE BALLROOM A

4:40pm EST

(CANCELLED) (SYMPOSIA-04) Density and Biomass of Drifting Macroinvertebrates in the Upper St. Marys River: A Comparison of the Power Canal and Main Rapids
AUTHORS: Tristan Tackman (Student); Dr. Ashely Moerke (Professor/Undergraduate Advisor); Jake Larsen (Graduate) – School of Natural Resources and Environment, Lake Superior State University

ABSTRACT: The St. Marys River is the only outflow of Lake Superior and feeds both Lake Michigan and Lake Huron. The river itself rears a majority of these lakes’ sports fishes by providing ample spawning grounds; these young fish rely on small macroinvertebrates for most of their growth in early years. The objective of this study was to quantify and compare the supply of drifting invertebrates from the main rapids and the hydropower canal in an effort to understand key food sources available for fishes in the river.  To do so, two larval drift nets were set overnight in the rapids and canal to collect drifting invertebrates during the months of May and June 2016.  For each date biomass was calculated asash free dry weight and density was calculated as number of invertebrates per 100m<sup>3</sup>. Densities were the highest for Hydropsychidae and Mysidae at both sites, andcomprised 18% (the remanding 82% being non-dominant taxa) and 9.5% in the rapids and 26.7% and 8.9% in the canal site. Although Mysidaedensities were higher than other taxa, Hydropsychidae contributed more biomass to the system in both sites during May and June of 2016. Additionally, total drift densities were 2.4 times higher in the canal site than the rapids, suggesting that the canal is a better source of invertebrates to the St. Marys River. The canal is likely drawing water from more offshore areas in Lake Superior, which may explain the higher numbers of drifting Mysids in the canal site compared to the rapids.

Monday January 28, 2019 4:40pm - 5:00pm EST
CENTER STREET ROOM A

4:40pm EST

(FISHERIES: INVASIVE SPECIES 1) Selective, Safe and Low Cost Piscicide
AUTHORS: Maurice Sadowsky, President, MJSTI Corp.

ABSTRACT: MJSTI proved a selective, safe and low-cost fish pesticide with the goal of controlling the bighead and silver carps (bigheaded carps).  The technology and experiments will be discussed and compared to the USGS antimycin A/beeswax formulation (with patent lawyers’ approval).  The US patent should be submitted in 2018.  The formulation is selective as a digestive poison.  It is safe using FDA additives.  The average raw material cost is 1/12 to 1/30<sup>th</sup> of MJSTI’s estimated USGS antimycin A/beeswax raw material cost.  The EPA registration should be for a new formulation since the component chemicals are all EPA registered pesticide ingredients.  The technology has application for other fish including common carp and potentially grass carp.

Monday January 28, 2019 4:40pm - 5:00pm EST
HOPE BALLROOM C
 
Tuesday, January 29
 

10:20am EST

(FISHERIES: INVERTEBRATES) Characterizing Macroinvertebrate Community Changes of West Fork White River (1979-2015)
AUTHORS: Caleb Artz, Dr. Mark Pyron – Ball State University

ABSTRACT: Long term macroinvertebrate data (1979-2015) was used to describe and analyze community characteristics of West Fork White River in Muncie, IN. Family abundance, functional feeding group, taxon richness, and sensitivity were analyzed to describe patterns in assemblage shifts. Multivariate statistical analyses was used to determine significant temporal and spatial patterns in the data set. Observed shifts in long term macroinvertebrate data are likely due to advancements in water quality due to the Clean Water Act.

Tuesday January 29, 2019 10:20am - 10:40am EST
CENTER STREET ROOM B

11:00am EST

(HUMAN DIMENSIONS: POLICY & ENGAGEMENT) Volunteer Stream Quality Monitoring: Fostering Community Engagement in Ohio’s Scenic Rivers
AUTHORS: Robert Gable, Ohio Department of Natural Resources, Scenic Rivers Program Manager ABSTRACT: For over 50 years, the Ohio Scenic Rivers Program has had great success partnering with local communities, landowners, government agencies, conservation organizations, businesses and individuals in the protection of fourteen of the state’s outstanding river ecosystems. Conservation goals have been achieved through public outreach and education, implementation of innovative conservation measures, enhancing recreational opportunities, and emphasis on the protection of sensitive areas critical to high-quality stream ecosystems. One of the most important tools to the success of the Scenic Rivers Program has been education and outreach through the Volunteer Stream Quality Monitoring (SQM) Project. SQM focuses on the basic study of aquatic macroinvertebrate communities in Ohio’s fourteen designated state wild, scenic and recreational rivers to evaluate overall stream health. Introducing individuals to their first crayfish, mayfly or leech sparks an interest in the stream ecosystem. Participants become empowered with information and understanding; qualities that drive advocacy and conservation action. Since the inception of the Volunteer SQM Project in 1983, more than 150,000 individuals and groups have monitored over 150 locations in Ohio’s wild, scenic and recreational rivers. In 2017 alone, the Scenic Rivers Program had over 7,600 individuals participate state wide creating an integral component to the overall success of the Ohio Scenic Rivers Program. Sharing the methods behind our success may be valuable to other conservation organizations looking to grow voices for their waterways and support for conservation of high-quality river and stream resources.

Tuesday January 29, 2019 11:00am - 11:20am EST
VETERANS MEETING ROOM C/D

11:20am EST

(FISHERIES: INVERTEBRATES) Evaluating Impacts of Rainbow Trout Farming on Macroinvertebrates in Neotropical Streams in Ecuador
AUTHORS: Dana G. Wessels, Biology Department, Grand Valley State University; Dr. Katherine Krynak, Department of Biological and Allied Health Sciences, Ohio Northern University; Dr. Ed Krynak, Department of Geography, Western University; Andrea Encalada, Universidad San Francisco de Quito, Ecuador; Dr. Eric Snyder, Biology Department, Grand Valley State University

ABSTRACT: Rainbow trout (Oncorhynchus mykiss) aquaculture has increased to accommodate growing human populations, but streams throughout the world are being adversely affected in the process. Understanding how stream ecosystems respond to trout farm effluent is necessary to propose well-informed management practices before habitat and biotic loss become unrecoverable. Our research compared macroinvertebrate communities and environmental parameters along two streams in the Pichincha region of Ecuador; one stream with five non-native rainbow trout farms, and the other stream without trout farms. Macroinvertebrates collected in non-trout farm and headwater (control) sites were compared to those collected at the outflow of the five trout farms. An analysis of similarity based on the non-metric multidimensional scaling analyses (NMDS) of the macroinvertebrate families in qualitative kick samples as well as the EPT genera from the Surber samples showed a significant difference between the three sampling groups (Global R = 0.536, p = 0.004 and Global R = 0.639, p = 0.001 respectively). SIMPER analyses determined the families and genera that contributed the greatest proportion of dissimilarity between the trout farm, non-trout farm, and headwater groups. The Andean Biotic Index pollution tolerance values and functional feeding groups of the most influential families were examined. AICc model selection and model averaging was used to evaluate potential environmental influence on macroinvertebrate community similarity. Model averaged parameter estimates of the interaction between specific conductivity (SC) and percent organic matter (OM) was predictive of the macroinvertebrate community differences between sampling sites from the kick samples. Our results indicated reduced water quality due to the effects of rainbow trout farm effluent. However, treatment methods are limited in this mountainous terrain. Therefore, we would suggest feeding efficiency and utilization of trout farm sludge as fertilizer to minimize the impact of these farms on the neotropical streams.

Tuesday January 29, 2019 11:20am - 11:40am EST
CENTER STREET ROOM B

1:20pm EST

(SYMPOSIA-10) The Ohio Dragonfly Survey: Citizen Science and INaturalist
AUTHORS: MaLisa Spring, Norman Johnson – The Ohio State University

ABSTRACT: Dragonflies and damselflies are predatory arthropods that are reliant on aquatic habitats in both their immature and adult forms. Ohio is home to 170 species of dragonflies and damselflies. Of these, 23 are state-listed as endangered, threatened, or species of concern. The Ohio Dragonfly Survey is a citizen-science group documenting all species across the state to get a better understanding of the current distribution patterns and phenology. Thanks to the help of dedicated naturalists, we compiled over new 30,000 records in iNaturalist to incorporate into the survey. To date, 806 different users have contributed data via iNaturalist. Of these, 42 individuals contributed at least 100 observations to the survey. Odonata experts verify these observations, and a majority of the observations have reached research grade. Hundreds of new county records have been reported which have significantly expanded the known distribution of several species (Dythemis velox, Enallagma traviatum westfalli, Libellula incesta). Many species are still poorly documented, with several known from only a single county in Ohio: Aeshna interrupta, Calopteryx angustipennis, Enallagma anna, Enallagma doubledayi, Erithrodiplax miniscula, Hylogomphus abbreviatus, Leucorrhinia proxima, Libellula flavida, Somatochlora incurvata, Somatochlora kennedyi, and Tramea calverti.

Tuesday January 29, 2019 1:20pm - 1:40pm EST
VETERANS MEETING ROOM A/B

1:20pm EST

(SYMPOSIA-12) What Makes for a Good Restoration Project
AUTHORS: Devin Schenk, The Nature Conservancy

ABSTRACT: There is a lot of interest and effort spent on stream and wetland restoration across the nation. Restoring these aquatic systems is widely recognized as a positive countermeasure to past landuse impacts and degradation; however, research has found that restoration failures are pervasive. It is therefore critical for practitioners, land managers, grantors, and decision-makers to be able to recognize the common challenges associated with stream and wetland restoration and what a successful project looks like. This talk will take a categorical stroll through the restoration landscape providing insight into ,what to look for in determining the goals of a restoration project, assessing a site’s restoration potential, evaluating its design, and measuring its success.

Tuesday January 29, 2019 1:20pm - 1:40pm EST
CENTER STREET ROOM C

2:00pm EST

(SYMPOSIA-07) Lake Sturgeon Movements in the Missouri River Basin Call Attention to the Importance of Tributaries in Large River Fish Conservation
AUTHORS: Michael Moore, Craig Paukert – University of Missouri Cooperative Fish and Wildlife Research Unit

ABSTRACT: Large river tributaries often provide spawning and nursery habitat for large river fishes and may be less altered than the mainstem large rivers.  We used telemetry to identify tributary use and habitat selection of Lake Sturgeon, a threatened species, in the Osage and Gasconade rivers, two tributaries of the Missouri River in Missouri USA near the southern edge of their range. We implanted 96 Lake Sturgeon with acoustic transmitters in the Osage and Gasconade Rivers from 2015 to 2018 and relocated fish by remote receivers in the tributaries and mainstem Missouri River and monthly manual tracking. Ninety Lake Sturgeon have spent 75% of their time in tributaries. However, 20 fish have not been detected for up to 10 months, suggesting they may leave the tributaries for extended periods.  Bayesian discrete choice models determined that Lake Sturgeon selected deeper habitats across all seasons. Lake Sturgeon also selected habitats closer to the main channel in all seasons except spring when they moved closer to the bank in faster flows. Lake Sturgeon did not select habitats based on substrate composition or cover. This information may help inform river conservation and the consideration of tributaries into conservation strategies for large river fishes. 

Tuesday January 29, 2019 2:00pm - 2:20pm EST
HOPE BALLROOM A

2:00pm EST

(SYMPOSIA-10) Fishes of Ohio Inventory and Distribution Project
AUTHORS: Brian J. Zimmerman, The Ohio State University; Dan Rice, (retired) Division of Natural Areas and Preserves (ODNR); Marc R. Kibbey, The Ohio State University; Marymegan Daly, PhD, The Ohio State University

ABSTRACT: Milton Trautman’s classic book, “The Fishes of Ohio,” was published in 1981 and did an excellent job presenting the distribution and status of Ohio’s fish fauna at the time. In subsequent decades, fish communities of Ohio have changed in composition and distribution. In 2011, we began an inventory of the current status of all fish species found in Ohio. Some of these changes we have documented are positive, including the large scale expansion of many species of riverine fish that have been characterized as sensitive to water quality. Other changes point towards declines, particularly in species reliant on wetland or glacial lake habitats. In addition to trends in distribution and abundance of native species, we see significant impact in the occurrence of non-indigenous species that were not documented by Trautman. The results of the 2011-2017 distribution surveys are summarized in our 2018 field guide “A Naturalist Guide to the Fishes of Ohio” by Dan Rice and Brian Zimmerman.

Tuesday January 29, 2019 2:00pm - 2:20pm EST
VETERANS MEETING ROOM A/B

2:00pm EST

(CANCELLED) (FISHERIES: EARLY LIFE HISTORY) Larval Drift Sampling for Scaphirhynchus Sturgeon in the Mississippi and Missouri Rivers
AUTHORS: Kevin Haupt, U.S. Fish and Wildlife Service; Hae Kim, West Virginia University Division of Forestry and Natural Resources; Donovan Henry, U.S. Fish and Wildlife Service; Sara Tripp, Big Rivers and Wetlands Field Station Missouri Department of Conservation; Quinton Phelps, West Virginia University Division of Forestry and Natural Resources

ABSTRACT: Larval fish sampling can provide insight into early life vital rates, abundance, and drift dynamics. In riverine environments, larval fish drift dynamics may influence early-life survival. Further, field and lab studies have shown that drift dynamics vary across species. Thus, information during this life stage is imperative for proper conservation and management of riverine fishes. However, successfully sampling larval fishes in riverine environments presents various challenges (e.g., spatial and temporal coverage and sampling effectiveness). As it relates to Scaphirhynchus sturgeon, these challenges are exasperated when targeting larvae in fast flowing reaches of the Missouri and Mississippi rivers. Prior research suggests that Scaphirhynchus sturgeon are benthic post-hatch. Our objectives were to determine drift dynamics and origin of Pallid Sturgeon in the Missouri River, Middle Mississippi River, and Upper Mississippi. We sampled in river reaches above and below the confluence of the Misssouri River, above chain of rocks and below chain of rocks on the middle Mississippi. We employed two 1000µm mesh, rectangular framed-nets off both sides of the boat. Weights (45kg) were affixed to the bottom of each net, to keep nets upright. Additionally, flow-meters were affixed to the mouth of the nets to measure volume of water filtered. Nets were deployed from the boat via an electric winch. Sampling commenced in mid April and ended in late June.  Overall, approximately 3,500 larval drift samples were collected during the study period.  Preliminary results indicate we have captured drifting Scaphirhynchus sturgeon throughout the water column (i.e., surface, middle, and bottom) at all river reaches.  To this end, employing larval drift nets throughout the water column may provide additional insight into Scaphirhynchus sturgeon life history that will inform conservation and management of these species.

Tuesday January 29, 2019 2:00pm - 2:20pm EST
CENTER STREET ROOM B

2:20pm EST

(CANCELLED) (FISHERIES: EARLY LIFE HISTORY) Phenology and Magnitude of Larval Fish Drift and Production Near the St. Marys River Rapids, MI
AUTHORS: Jason Gostiaux, Contractor at US Geological Survey; Edward F. Roseman, US Geological Survey; Robin L. DeBruyne, University of Toledo; Jason L. Fischer, University of Toledo; Ashley Moerke, Lake Superior State University; Kevin Kapuscinski, Lake Superior State University; Christopher Olds, US Fish & Wildlife Service; Faith Vandrunen, Contractor at US Geological Survey; Kaley Genther, US Fish and Wildlife Service; Ethan Binkowski, Lake Superior State University

ABSTRACT: The St. Marys River is the Great Lakes connecting channel connecting Lake Superior to Lake Huron and is the international border between Michigan, United States, and Ontario, Canada.  This large river has a variety of habitats present including lakes, wetlands, islands, tributaries, side channels, and main channels.  Water flow is regulated through the navigational locks and a series of 16 compensating gates immediately upstream of the area known as the St. Marys Rapids.  This area is considered an important spawning and nursery area for numerous fish species, although no research has been done to assess fish use or production.  To address this knowledge gap, active and passive larval sampling gears were used to measure the timing and abundance of larval fishes upstream and downstream of the St. Marys Rapids area from May-August 2018.  Drifting eggs and larvae were collected near the bottom and surface during weekly daytime and nighttime sampling.  Eggs and larvae of several native (suckers, sculpins, troutperch, minnows) and introduced species (rainbow smelt, salmonids) were collected at sites above and below the St. Marys Rapids area, however, larval fish and eggs were more abundant below the St. Marys Rapids.  Furthermore, salmonid and lake sturgeon larvae were only captured downstream of the rapids area.  Lake sturgeon larvae have been documented in the Garden River, Ontario, a tributary of the St. Marys River, however, this is the first contemporary documentation of successful lake sturgeon spawning and larval drift within the St. Marys River proper.  Evidence of fish use of the St. Marys Rapids including the presence of multiple sensitive species, confirms the importance of this area for spawning, production, and biodiversity.

Tuesday January 29, 2019 2:20pm - 2:40pm EST
CENTER STREET ROOM B

2:40pm EST

(SYMPOSIA-10) Aquatic Ecosystem Conservation
AUTHORS: S. Mažeika P. Sullivan, The Ohio State University

ABSTRACT: Ohio’s stream, river, and wetland ecosystems have been subjected to multiple environmental stressors (e.g., changes in climate and land-use; alterations in stream hydrogeomorphic processes; ecosystem contaminants and nutrient enrichment, etc.). These changes can affect aquatic communities and ecosystems in myriad and interactive ways, with rare and endangered species particularly susceptible. The Ohio Biodiversity Conservation Partnership (OBCP) has been an effective mechanism in supporting and catalyzing applied research that directly informs conservation, restoration, and management of rare fish species, aquatic communities, and ecosystem function. Here, I overview specific examples of linked research-conservation activities supported by OBCP and how they have contributed to improved aquatic ecosystem health (e.g., impacts of dam removal, linkages between fluvial geomorphology and aquatic communities, rare fish propagation and reintroduction). I also highlight additional advantages of OBCP in the context of aquatic resources including training and diversifying undergraduate and graduate students, leveraging for federal funding, and increasing science communication.

Tuesday January 29, 2019 2:40pm - 3:00pm EST
VETERANS MEETING ROOM A/B

2:40pm EST

(SYMPOSIA-12) The Power of Partnering with State Agencies to Achieve Conservation
AUTHORS: Matthew Perlik, Ohio Department of Transportation

ABSTRACT: Over the last 10 years, Ohio DOT has spent over $40 million on landscape conservation and restortation projects. This money provides an enormous contribution to protected and restored lands throughout the 34th smallest state (by area) in the US with less than 5% public lands. ODOT has developed a program that works with non-profits, for profits, universities, federal agencies, and fellow state agencies to deliver aquatic and terrestrial conseration that is lower cost, exceeds ecological improvement requirements, and is delivered faster than traditional methods. This process has expanded preserved lands, lands for recreation, and the holdings of entities dedicated to conservation. Using recent case studies, this paper will focus on the challenges and successes of working with a state DOT to deliver successful conservation within a highly developed state landscape.

Tuesday January 29, 2019 2:40pm - 3:00pm EST
CENTER STREET ROOM C

2:40pm EST

(FISHERIES: EARLY LIFE HISTORY) Maturation of Artificial Fish Spawning Reefs in the St. Clair-Detroit River System
AUTHORS: Jason L. Fischer, University of Toledo, Lake Erie Center; Edward Roseman, US Geological Survey, Great Lakes Science Center; Christine Mayer, University of Toledo, Lake Erie Center; Todd Wills, Michigan Department of Natural Resources, Lake St. Clair Fisheries Research Station

ABSTRACT: Artificial rock reefs have been used to remediate spawning substrates for lithophilic spawning fishes (e.g., Lake Sturgeon, Acipenser fulvescens;Lake Whitefish, Coregonus clupeaformis; and Walleye, Sander vitreus) in the St. Clair-Detroit River System. Early projects used species specific metrics (e.g., proximity to historic spawning locations) to guide reef placement. However, long-term success of some of the initial reefs was compromised by accumulation of fine sediments. Therefore, to improve the likelihood of successful reef function, project managers incorporated geomorphological criteria in 2013 to avoid placing reefs in areas near sediment sources and depositional zones. To evaluate the effectiveness of the revised placement process, we quantified physical maturation of artificial reefs using 1) annual down-looking and side-scan sonar surveys beginning in 2014 to measure reef areas and bottom roughness and 2) underwater video surveys beginning in 2015 to quantity sediment composition. Roughness of reefs constructed after 2013 remained greater than bottom roughness in areas adjacent to the reefs thru 2017, however, roughness of the Hart’s Light Reef was significantly lower in 2017 than in 2014, indicating some sediment accumulation. Similarly, sediment composition of the reefs remained similar thru 2017 and prevalence of reef rock was high, except at Hart’s Light Reef, where dreissenid mussel shells composed 32% of the substrate by age three. However, in 2018 reef rock was less prevalent at all reefs, due to accumulation of shells, fine sediments, and gravel. Despite the use of geomorphic criteria to identify areas most suitable for reef construction, sediment composition of the reefs has changed and long-term evaluation is required to determine if the changes observed in 2018 are temporary or representative of a longer trend. Nevertheless, our evaluation indicates future reef restoration projects could benefit by incorporating methods for maintenance, in addition to using geomorphic criteria to identify restoration sites.

Tuesday January 29, 2019 2:40pm - 3:00pm EST
CENTER STREET ROOM B

3:20pm EST

(SYMPOSIA-12) Working with the United States Army Corps of Engineers for Aquatic Resource Restoration and Enhancement
AUTHORS: Cory Wilson, U.S. Army Corps of Engineers, Huntington District

ABSTRACT: Aquatic resource restoration and enhancement projects, though beneficial, are often subject to the United States Army Corps of Engineers’ (Corps) regulatory authority under Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act of 1899. This portion of the symposium will provide a general overview of these Acts and the types of activities that do, and do not, require Department of the Army permits. In addition, a description of the typical Corps permitting/approval mechanisms for implementing these types of projects will be provided (e.g. Nationwide Permits and Mitigation Banking Instruments). Finally, a summary of the Ohio Stream and Wetland Valuation Metric and the Ohio Interagency Review Team guidelines for stream and wetland mitigation banking and in-lieu fee programs in the State of Ohio will be provided. Participants in this symposium will gain a general understanding of the requirements and tools necessary for implementing aquatic resource restoration and enhancement projects under the Corps regulatory authority.

Tuesday January 29, 2019 3:20pm - 3:40pm EST
CENTER STREET ROOM C

3:20pm EST

(FISHERIES: BIG RIVERS) Identifying Catostomid Larvae Using Next Generation Sequencing (NGS) to Better Understand Reproduction Within Large River Systems
AUTHORS: Kellie N. Hanser, Cassi Moody-Carpenter, Jordan Pesik – Eastern Illinois University; Dan Roth, Indiana Department of Natural Resources; Aaron Schrey, Gerogia Southern University-Armstrong Campus; Anthony Porreca, Kaskaskia Biological Station: Illinois Natural History Survey; Robert E. Colombo, Eastern Illinois University

ABSTRACT: Catostomidae, the third largest freshwater fish family, comprises a high percentage of fish biomass in river systems throughout North America. Despite their presence, there is little information on the reproductive life history for this family in large, midwestern rivers and their tributaries. To address this, we sampled larval fish in three tributaries of both the Illinois River and Wabash River in conjunction with environmental data collected on factors thought to be important for reproduction. Between 2016 and 2017, we collected 130 and 2626 catostomid larvae from the Illinois and Wabash River tributaries, respectively. Due to the morphological difficulty of identifying catostomid larvae past family taxonomic level, Next Generation Sequencing (NGS) was used to identify catostomid larvae to either genus or species. Results of larvae identification are still pending due to processing time. We expect Wabash River tributaries to have a higher abundance of Moxostoma(Redhorse) while the Illinois River tributaries will have a higher abundance in Ictiobus(Buffalo) due to differences in connectivity between the systems. Future research will examine the relationship between larval and adult catostomid abundance in the Illinois and Wabash River systems.   

Tuesday January 29, 2019 3:20pm - 3:40pm EST
CENTER STREET ROOM B

3:40pm EST

(SYMPOSIA-12) Identify Aquatic Restoration Priorities Using GIS and the Watershed Approach
AUTHORS: August Froehlich, The Nature Conservancy in Ohio

ABSTRACT: Our current era of stream and wetland mitigation began with the publication in 2008 of “Compensatory Mitigation for Losses of Aquatic Resources,” aka the 2008 Mitigation Rule. By publishing this document, the USEPA and the USACE established a new paradigm for the entire process of mitigating impacts to the nation’s streams and wetlands. One of the main concepts originally proposed was the watershed approach. The watershed approach is comprised of 5 elements to drive the strategic selection of compensatory mitigation and ensure the likelihood of a mitigation plan being both successful and sustainable. Each of the 5 elements are well suited for spatial analysis. From evaluating the landscape context of a HUC-6 watershed to identifying the potential project parcels, GIS analysis allows efficient implementation of all 5 of the elements. This presentation will use the identification of a stream restoration site to provide examples of the watershed approach. Data sources, analysis methods, and supporting documents will all be discussed.

Tuesday January 29, 2019 3:40pm - 4:00pm EST
CENTER STREET ROOM C

3:40pm EST

(FISHERIES: INVASIVE SPECIES 2) Early Life History of Age-0 Silver Carp in the Mississippi River Basin
AUTHORS: Hae H. Kim, Quinton E. Phelps – West Virginia University Division of Forestry and Natural Resources; David Weyers, Sara J. Tripp – Missouri Department of Conservation Big Rivers Field Station.

ABSTRACT: Survival during early life history and recruitment adult structure population demographics. Numerous studies have demonstrated that riverine fishes are prone to variable early life survival and recruitment. High abundance of Silver Carp Hypophthalmichthys molitrix in the upper Mississippi River basin suggests great spawning and recruitment success. Previous studies have largely focused on characterizing adult Silver Carp populations. However, early life history has not been evaluated. Thus, we examined relative abundance, growth rates, hatch timing, and mortality of age-0 Silver Carp. We used data collected in mini-fyke nets by the Long Term Resource Monitoring element in three river upper Mississippi River reaches. A total of 154,092 age-0 Silver Carp were captured, ranging from 7.5-170 mm. Catch per unit effort ranged from 0-107 fish/net with an overall average of 11.86 (0.4) fish/net. Growth rates ranged from 0.74 – 1.81 mm/day with a total mean growth rate of 1.25 mm/d (0.03) mm/day. Daily mortality (z) ranged from 0.74-0.94 and averaged 0.832 (0.09). Silver Carp hatched within a 115-day window between 22 May and 15 September, with hatch peaking between 21 June and 19 July. Baseline demographic knowledge will aid managers control and limit Asian Carp spread throughout the Mississippi River Basin.

Tuesday January 29, 2019 3:40pm - 4:00pm EST
HOPE BALLROOM C

3:40pm EST

(FISHERIES: BIG RIVERS) Age-0 Daily Growth Estimation of Commercially Exploited Channel Catfish in a Free-Flowing Midwestern River
AUTHORS: K.B. Wood, Cassi J. Moody-Carpenter, Robert E. Colombo – Eastern Illinois University

ABSTRACT: Highly variable discharge experienced by the lower Wabash River due to a more natural hydrology pattern overlaps with Channel Catfish (Ictalurus punctatus) reproduction period; this leads to variable conditions for age-0 fish to develop upon hatching. There ubiquitous pattern of cryptic information published about age-0 Channel Catfish, and any insight would be advantageous to multiple facets in Channel Catfish life history. While a male will spawn multiple times through the year, reproduction is dictated by the females, only becoming gravid once annually; females becoming gravid at separate times leads to there being non-coeval cohorts. In their larval stages, endogenous feeding promotes a constant growth rate, but switching to exogenous feeding and entering the juvenile stages leads to growth dependent on the environmental conditions. We observed stable reproduction in varying conditions over four years of sampling (p > .05). Peak abundance in August signifies a peak in the aggregation of cohorts. Past surveys have shown there are at least five cohorts of age-0 Channel Catfish throughout the spawning season in the Wabash River; investigations into growth patterns of these cohorts by estimating daily growth from the otoliths can offer insight into which cohorts may best be utilizing their available resources. Variations in growth patterns could come from present conditions, normal seasonal variation, or a combination of both. Results from this study could aid in creating a recruitment index for Channel Catfish in this exploited lotic system. 

Tuesday January 29, 2019 3:40pm - 4:00pm EST
CENTER STREET ROOM B

4:00pm EST

(SYMPOSIA-12) Reading the Riverine Landscape and Learning From Past Restoration Designs
AUTHORS: Dana Ohman, The Nature Conservancy

ABSTRACT: There are many riverine factors that need to be scrutinized for stream restoration.  Some of these factors are fluvial processes, riverine channel characteristics, thermal regimes, longitudinal and lateral connectivity, water quality and quantity, aquatic ecology, and physical habitat characteristics.  All too often streams and rivers are restored based on a cookbook approach without addressing the causes of degradation or individual needs of the stream.  Unfortunately, this approach creates a stream condition that does not match the natural integrity of the stream thereby creating a restoration project that will end up failing.  Learning from past incompatible designs and stream restorations create a learning opportunity to develop more dynamic restoration designs that will keep that natural integrity of the stream intact.  This talk will focus on stream characteristics, identification of a reference reach to mimic stream restoration design components, and lessons learned from past stream restoration designs. 

Tuesday January 29, 2019 4:00pm - 4:20pm EST
CENTER STREET ROOM C

4:00pm EST

(SYMPOSIA-13) Communication and Outreach Lessons from a Unique Fish Spawning Habitat Restoration Project
AUTHORS: Rhett Register, Michigan Sea Grant

ABSTRACT: In 2001 Michigan Sea Grant began a project to restore fish spawning habitat in the St. Clair – Detroit River System. Rocky habitat needed by key species — including lake whitefish, lake sturgeon, and walleye — had been removed to increase the depth of the rivers for shipping, impacting fish populations.The restoration effort relied on a unique partnership between agencies, universities, and NGOs. Because of the scale, the multiple partners, and the adaptive management methods used on the project, communication (both internal and external) and outreach were key.Michigan Sea Grant was vital to keeping partners, stakeholders, and the general public informed, aware of activities, and involved. A Michigan Sea Grant Extension educator took leadership roles in river partnership and restoration groups, worked with fishing groups, gave numerous tours and interviews, contacted legislators, and worked with the news media to communicate about the project. Michigan Sea Grant Communications supported the project group, creating outreach and education materials, including news releases, web messaging, graphics, signage, and photos, and hosted public events.This presentation will give an overview of the activities and lessons learned regarding outreach and communications for a unique, long-running project that had multiple partners working together to restore fish spawning habitat in the St. Clair – Detroit River System.

Tuesday January 29, 2019 4:00pm - 4:20pm EST
VETERANS MEETING ROOM C/D

4:00pm EST

(FISHERIES: INVASIVE SPECIES 2) Potential Beneficial Effects of Invasive Silver Carp on Native Fishes
AUTHORS: Rebekah L. Anderson, Nathan J. Lederman – Aquatic Nuisance Species Program, Illinois Department of Natural Resources; Cory A. Anderson, U.S. Fish and Wildlife Service; Jason A. DeBoer, Illinois River Biological Station, Illinois Natural History Survey.

ABSTRACT: Substantial research attests to the injurious impacts invasive silver carp (Hypophthalmichthys molotrix) have on Midwestern U.S. river systems. Particularly, the dietary overlap between silver carp and native planktivores has resulted in declined condition and abundance of these species in areas where silver carp dominate the community (i.e., the lower Illinois River). However, additional research demonstrates silver carp may benefit native non-planktivorous fishes because of the carp’s ability to produce young at a large scale providing an abundant prey source for native piscivores, and their nutrient rich fecal pellets may enrich benthic forage quality for native benthivores. Potential positive effects of silver carp for native fishes are not fully understood, and research is limited in natural systems. Here we determine whether silver carp benefit non-planktivorous native fishes in the lower Illinois River (i.e., Peoria, LaGrange, and Alton pools) by examining native piscivore and benthivore body condition over time utilizing two standardized long-term data programs. We found a significant positive relationship between silver carp abundance and native benthivore body condition. Moreover, visual trends indicate increased body condition during and immediately after strong silver carp year classes (2008 & 2014) for both native piscivores and benthivores. Therefore density-dependent effects may exist where juvenile silver carp populations and benthic nutrient levels must reach a threshold before they are exploitable (i.e., beneficial) resources. We suggest more years of data that incorporate strong silver carp year classes may be needed to clarify potential positive effects of silver carp for native non-planktivorous fishes.

Tuesday January 29, 2019 4:00pm - 4:20pm EST
HOPE BALLROOM C

4:00pm EST

(FISHERIES: BIG RIVERS) Age, Growth, and Yield-Per-Recruit of Black Crappie (Pomoxis nigromaculatus) in Pools 4, 8, and 13 of the Upper Mississippi River
AUTHORS: Tyler Ham, Indiana Department of Natural Resources; Dr. Quinton Phelps, West Virginia University

ABSTRACT: Population dynamics are important to consider when managing recreational fisheries. Population dynamics interact with effects of harvest to create fluctuations that may need ameliorated through regulation. Black Crappie (Pomoxis nigromaculatus)are a popular sport fish in the United States that anglers spend time and money pursuing on a yearly basis. Despite their importance, limited information exists on Mississippi River Black Crappie. Therefore, the goal of this study was to evaluate the population dynamics of Black Crappie in Pools 4, 8, and 13 of the Upper Mississippi River. The potential for growth overfishing was evaluated through the use of yield-per-recruit modelsand based on historic harvest rates and habitat modifications within these pools. Overall, 201 crappie were collected from Pool 4, 215 from Pool 8, and 130 from Pool 13 during the summer and fall of 2016. All fish were weighed, measured, and aged via sagittal otoliths. We simulated exploitation for six different length limits. We found that growth overfishing did not occur until exploitation rates exceeded 50% for fish less than or equal to 152 mm. These results suggest that Black Crappie populations in Pools 4, 8, and 13 are not at risk of growth overfishing, but continued monitoring is warranted due to the potential influence of extrinsic factors like climate change, eutrophication, and vegetation shifts.

Tuesday January 29, 2019 4:00pm - 4:20pm EST
CENTER STREET ROOM B

4:20pm EST

(SYMPOSIA-12) Keys to Successful Dam Removal and River Restoration
AUTHORS: Amy Singler, The Nature Conservancy & American Rivers

ABSTRACT: Dam Removal is arguably the most effective tool we have for restoring river habitat and fish passage. The benefits of many dams may no longer outweigh the significant impacts to fisheries and habitat. Following dam removal we see rapid improvement in water quality, return of riverine species, restored habitat downstream and upstream of the former dam. Dam removal also eliminates maintenance requirements for owners and the potential danger of failure at unmaintained dams during floods. As the rate of dam removal has increased we are seeing positive results to fish and river habitat, and we are learning just what it takes to make projects successful.Dam removal design needs to focus on river processes and account for the dynamic nature of the rivers, while taking into account infrastructure, appropriate sediment management, and threatened and endangered species. Less can often be more when we approach dam removal engineering design. Increasingly, practitioners and regulators are finding the balance of acceptable short-term impacts and long term benefits. Using project examples this presentation will address: 1.) How to recognize and address key issues at dam removal projects in order to design projects that are self-sustaining and create lasting benefits for the suite of aquatic species in the river system; 2.) How to collaborate with regulatory agencies to address concerns of impacts from dam removal construction.

Tuesday January 29, 2019 4:20pm - 4:40pm EST
CENTER STREET ROOM C

4:20pm EST

(CANCELLED) (FISHERIES: BIG RIVERS) Paddlefish Exploitation and Movements Within the Mississippi River Basin
AUTHORS: Thomas Devine, Southeast Missouri State University; Sara Tripp, Missouri Department of Conservation; Nick Kramer, Kansas Fish & Wildlife Division

ABSTRACT: The American Paddlefish Polyodon spathula is an ancient species native to the Mississippi River and its larger tributaries. This species exhibits a unique combination of morphology and life history characteristics that leaves them vulnerable to negative impacts caused by river modification and the potential for overexploitation. This has led to population declines in portions of the historic range. Concern regarding unknown exploitation rates from sport and commercial fisheries has increased in recent decades and the Convention on International Trade of Endangered Species is now seeking information from state agencies regarding the sustainability of commercially harvested Paddlefish Populations. The Missouri Department of Conservation is addressing this through the implementation of a five year study on exploitation of Paddlefish in the Mississippi River. The first two years of this project found that minimal exploitation of Paddlefish along Missouri’s eastern border with an exploitation estimate of 4.01% (SE=0.02). The third and fourth year of this study we focused on tagging more paddlefish with jaw bands and transmitters to further evaluate current exploitation rate and better understand paddlefish movement patterns in the Mississippi River and its tributaries. We found that paddlefish are moving great distances and crossed many regulatory boundaries. Despite low exploitation rate estimates, when information from this study is combined with previous work, a precautionary adjustment of regulations is advised to protect Paddlefish through maturation and ensure sustainability. In addition, Paddlefish regulations should be assessed across the entire Mississippi watershed, as regulations differ within and between regulatory and state boundaries. A combination of population monitoring (e.g. exploitation and population dynamics) and telemetry efforts have the potential to help inform future basin wide management approaches.

Tuesday January 29, 2019 4:20pm - 4:40pm EST
CENTER STREET ROOM B

4:40pm EST

(SYMPOSIA-12) Restoring Streams, Wetlands, & Floodplains in an Agricultural Landscape
AUTHORS: Amy Brennan, Lake Erie Conservation Director for The Nature Conservancy; Jessica D'Ambrosio, Western Lake Erie Basin Agriculture Director for The Nature Conservancy

ABSTRACT: The Nature Conservancy will share lessons learned and partnerships necessary to restore wetlands, floodplains and streams throughout the Western Lake Erie Basin (WLEB) to reduce nutrient loads to Lake Erie and her tributaries and restore natural infrastructure throughout the Western Lake Erie Basin.  TNC is working with conservation and agricultural community partners to restore natural infrastructure, including wetlands, riparian corridors, and floodplains in the Western Lake Erie Basin to expand, improve, and connect wildlife habitat.  TNC established a goal of restoring 1% of the agricultural acres in the WLEB to natural infrastructure – wetlands, floodplains and riparian corridors that help to manage nutrients and water more effectively.  We have completed initial modeling and mapping to identify the highest nutrient loading areas, best areas for restoring wetlands, and watersheds where stream improvement is likely if nutrients are reduced.  We are currently working with partners on 6 restoration sites from engineering and design to full implementation to convert 500 acres of current agricultural lands to natural wetlands, riparian corridors and floodplains.  In order to reach our goal of restoring 1% (56,000 acres) of agricultural lands, we will continue to engage and support partners and systematically build partnerships to scale up our restoration activities.   This involves a combination of mapping to identify project areas and target areas that will have the most impact on downstream resources, building capacity among our traditional and nontraditional conservation partners and completion of engineering and design for restoration projects.

Tuesday January 29, 2019 4:40pm - 5:00pm EST
CENTER STREET ROOM C

4:40pm EST

(FISHERIES: BIG RIVERS) Long-term Shovelnose Sturgeon Recapture and Population Data and Implications for Management Actions
AUTHORS: Craig Jansen, Indiana Department of Natural Resources

ABSTRACT: The Wabash River sustains one of the few remaining commercial fisheries for Shovelnose Sturgeon (SNSG). Since a statewide minimum length limit (25 inches eye-to-fork) was implemented in 2007, there have been concerns that regulations are not offering sufficient protection for the population, specifically mature females. SNSG have been sampled throughout the Wabash River from 2005 to 2018. General demographic data was collected from all fish (length, weight, pectoral fin ray) and sex was identified if possible. All fish were tagged with a unique Floy tag. Linear regressions were used to identify trends in annual mean length of the entire sampled population and confirmed mature females. Average length of SNSG exhibited a general decreasing trend, peaking at 27.1 inches in 2007 and decreasing to 25.5 by 2017. The mean size of confirmed females decreased more dramatically from 28.4 inches in 2009 to 25.9 inches in 2018. Days at-large was calculated for recaptured fish, and individuals were grouped based on size at original tagging. Recaptured fish exhibited a strong homing behavior as most were captured less than 5 miles from the original tagging site. Several SNSG have been recaptured 10 to 13 years after tagging and exhibit little to no growth. Once maturity is reached growth becomes negligible, and individual fish do not follow a typical population growth curve. Results suggest regulations have allowed overharvest, and more specifically, the removal of fast-growing and large females from the population. Based on the unique life-history and lucrative market value of SNSG, traditional fisheries management tools, such as minimum length limits, may not adequately protect the population from overharvest. More restrictive regulations are needed to ensure the Wabash River SNSG do not collapse like other sturgeon populations throughout the world.

Tuesday January 29, 2019 4:40pm - 5:00pm EST
CENTER STREET ROOM B
 
Wednesday, January 30
 

10:20am EST

(FISHERIES: INVASIVE SPECIES 3) Silver Carp Population Genetics from Tributaries of a Large Midwestern River
AUTHORS: Samuel Schaick, Eastern Illinois University; Cassi Moody-Carpenter, Eastern Illinois University; Aaron Schrey, Georgia Southern University; Katie Miller, Georgia Southern University; David Wahl, Illinois Natural History Survey; Robert Colombo, Eastern Illinois University

ABSTRACT: Silver Carp are a non-native fish species that have deleterious effects on the ecosystems they invade. Because of their destructive nature, fisheries managers devote substantial time and effort to limit the spread of these fishes. Better understanding patterns of Silver Carp reproduction and dispersal can help to better manage this invader. To determine spawning locations, we used drift nets and larval push nets in three tributaries the Wabash River to capture larval Hypophthalmichthys (Silver and Bighead Carp) in 2016 and 2017. Further, we used microsatellite loci to determine if genetic differences existed between larval Hypophthalmichthys in our three study tributaries. In total, 1,246 Hypophthalmichthys were collected from three tributaries, with the Little Wabash River and Embarras River producing roughly 83% and 16% of larvae. Having large enough sample sizes at two sites on the Little Wabash River and one site on the Embarras River, we performed genetic analyses and found all three sites had high levels of genetic diversity. Additionally, we found minimal inbreeding or outbreeding present. The middle Little Wabash and lower Embarras River samples were found to be genetically different. We expect this research to improve our understanding of Asian carp reproduction and help fisheries professionals to better mediate their spread.

Wednesday January 30, 2019 10:20am - 10:40am EST
CENTER STREET ROOM B

11:40am EST

(CANCELLED) (SYMPOSIA-14) Cross-boundary Food Webs in Stream-riparian Ecosystems: Implications for Conservation and Management
AUTHORS: S. Mažeika P. Sullivan, The Ohio State University

ABSTRACT: Streams and their adjacent riparian zones are increasingly recognized as structurally and functionally linked through exchanges of energy, organic matter, and organisms. In particular, recent advances in our understanding of stream-riparian ecosystems have underscored the importance of aquatic-to-terrestrial prey in providing critical energetic subsidies to terrestrial riparian consumers, ranging from arthropods, to birds, to mammals. Contaminants can also move from aquatic to terrestrial ecosystems through these same food-web pathways. Here, I overview a decade of research in the Scioto River basin of Ohio that documents variability in aquatic-to-terrestrial nutritional subsidies and contaminants to terrestrial consumers across a gradient of urban-to-natural landscapes, and in small streams to larger rivers. Using aerial insectivorous birds – which are experiencing serious populations declines across the guild – as a case study, I provide a detailed example of how this research is being used to bridge aquatic and terrestrial ecosystems in specific conservation and management contexts.

Wednesday January 30, 2019 11:40am - 12:00pm EST
HOPE BALLROOM A

11:40am EST

(FISHERIES: TECHNIQUES) Growth Chronology and Population Characteristics of Channel Catfish and Freshwater Drum Across Six Illinois Rivers
AUTHORS: Sabina Berry, Jim Lamer – Western Illinois University; Jason DeBoer, Andrya Whitten – Illinois Natural History Survey; Rob Colombo, Cassi Carpenter – Eastern Illinois University; Neil Rude, Greg Whitledge – Southern Illinois University Carbondale; Ben Lubinski, Jerrod Parker – Illinois Natural History Survey

ABSTRACT: Channel catfish (Ictalurus punctatus) and Freshwater drum (Aplodinotus grunniens) are two prominent North American sportfishes occupying a similar ecological niche in many river systems. Comparison of historically validated ageing structures and length frequency data can reveal dynamics of fish populations, including their recruitment, mortality, and individual growth patterns. In addition, tracking years of strong and weak growth through biochronological inference can increase understanding of the biotic and abiotic factors affecting individual reaches and rivers. This collaborative project covers reaches of six major rivers spanning Illinois, including the Wabash, Ohio, Illinois, Kankakee, Iroquois, Pools 16, 19, 20, 21, and 25 of the upper Mississippi River, as well as a small section of the lower Mississippi River. All fish were caught in 2017 and 2018 using DC electrofishing gear as part of a long term survey submitted annually to the Illinois Department of Natural Resources. Preliminary results from 2017 revealed weak year classes in all reaches for drum from 2010 to 2014, but stronger classes in the following years. Catfish showed weak years before 2011 and after 2014, but stronger years in between. Drum had faster growth rates in the Ohio and Mississippi reaches and slower growth in the Illinois and Wabash, whereas the catfish initially had faster growth rates only in the Ohio River. Mortality rates were highest for drum in the upper Mississippi River in pools 16 & 19, but lowest in the Ohio River. Catfish mortality rates were low throughout all reaches. Incorporating chronology factors as well as the data collected in 2018 may reveal additional trends and the larger dataset will allow us to further compare pools and reaches within each river. Understanding population dynamics and growth chronology of two common predatory fish spanning Illinois waterways is important for creating potential management strategies and determining their initial necessity.

Wednesday January 30, 2019 11:40am - 12:00pm EST
CENTER STREET ROOM A