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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.

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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). 

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Tuesday, January 29 • 11:00am - 11:20am
(SYMPOSIA-07) Assessing Walleye Habitat Use with Species Distribution Models

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AUTHORS: Andrew Carlson, Minnesota Department of Natural Resources

ABSTRACT: The science of evaluating species distributions against environmental conditions has advanced tremendously in the past decade following technological improvements in tagging and monitoring systems. Using data collected from acoustically tagged adult Walleye, generalized linear mixed models were developed to predict the probability of occurrence at depth given temperature and oxygen within stratified lakes. Following, using data from a survey-specific temperature and oxygen profile, the relative odds of occurrence for Walleye was calculated throughout the water column and at the depths of the gillnet sites. Comparisons between modeled probability of occurrence and observed catch rates at specific sites were made to evaluate the degree to which site-level patterns can be explained by the habitat sampled. Integrating and accounting for known measures of environmental variability that systematically influence catch statistics will improve the quality and subsequent interpretation fisheries data to support management decisions.

Tuesday January 29, 2019 11:00am - 11:20am
HOPE BALLROOM A

Attendees (19)