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As a result of the prolonged government shutdown, we’re expecting some presentation cancellations and will continue to update the schedule with changes as they occur.  Otherwise the conference will proceed as planned.  Current cancellations and changes are listed here.

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Tuesday, January 29 • 10:40am - 11:00am
(FISHERIES: LAKES & RESERVOIRS) Age and Growth of Blue Catfish in Two North-Central Kansas Reservoirs

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AUTHORS: Ernesto Flores, Kansas Department of Wildlife, Parks, and Tourism; William J. Stark, Fort Hays State University

ABSTRACT: Age information is a management tool used by fisheries biologists to characterize populations. The Blue Catfish (Ictaluris furcatus) is a riverine species that grow to trophy lengths and have been introduced into Kansas Reservoirs. Blue Catfish were introduced into Wilson Reservoir in 2006 and Lovewell Reservoir in 2010 with a common management objective, establishing a trophy fishery. Standard sampling protocol (SSP) has misrepresented the Blue Catfish population status in both reservoirs; a targeted sampling effort was conducted in the summer of 2016 in Lovewell Reservoir using low-pulse electrofishing and in 2017 using float-lines to gain insight on the population structure. A total 170 fish were collected from Wilson Reservoir with a TL ranging 210-860 mm. We sampled Lovewell Reservoir and collected 146 individuals ranging from 220-860 mm. Pectoral spines were collected from each individual and used for aging. Annual stockings were scheduled for Lovewell reservoir from 2010-2014 approximately at 1 fish/acre excluding the year 2013 stocking at 0.33 fish/acre. Age 6 fish comprised 52% of the sample, 2% at age 5, 13% age 4, 3% age 3, 23% age 2, and 4% age 1. Wilson Blue Catfish stocking rates were conducted at 2 fish/acre in 2006 and 2008; stocking rates were 1 fish/acre in 2007, 2010, 2011, 2012, 2013, 2014, and 2016. Age 11 fish made up 13% of the sample, age 10 at 49%, 36% were age 9, and 7% age 1. Age classes 2, 3, 4, 5, 6, and 7 were not represented in the sample. Detection of these missing year classes may have been caused by low lake levels during this time period.

Tuesday January 29, 2019 10:40am - 11:00am
CENTER STREET ROOM C

Attendees (2)