2021 Three Minute Thesis

Award Winner

Recipient of the 2021 Three Minute Thesis Competition Award - Second Place.

Award selection process: The top two from each group in the first heat advanced to the final round and presented again. Winners were selected from those top four.

To go to the Graduate Student Award Recipients collection page, click here.

Presentation Type

Open Access Poster Presentation

View Presentation

Click image to view Rachel McDonnell Presentation #1: Group 2, Heat 1 on November 12, 2021

Click image to view Rachel McDonnell Presentation #2: Final Round on November 12, 2021

Keywords

Walleye (Fish)--Iowa--Genetics; Fish stocking--Environmental aspects--Iowa;

Abstract

Walleye, Sander vitreus, is one of the top gamefish in Iowa. Due to poor natural reproduction in many Iowa waterbodies, populations are managed with stocking. There are two strains of walleye used to stock Iowa’s inland waters: a river strain derived from the Mississippi River near Genoa, WI and a lake strain derived from Spirit Lake, IA. Each strain may have unique characteristics relative to their environment that could affect the fitness and success of fish stocked. The goal of this study is to understand the genetic diversity within and between each strain to offer stocking guidance to the Iowa Department of Natural Resources. Genome-wide single nucleotide polymorphisms (SNPs) were used to genotype individuals. Broodstock individuals from each strain and various year classes were sampled. Population genetic analyses were performed and preliminary analyses will be presented.

Start Date

12-11-2021 12:00 PM

End Date

12-11-2021 1:30 PM

Event Host

Graduate College, University of Northern Iowa

Faculty Advisor

Peter Berendzen

Department

Department of Biology

Comments

  • Heat 1, Group 2 - Elm Room, Maucker Union
  • Award Selection Process: The top two from each group in the first heat advanced to the final round to present again. Winners were selected from the Final round.
  • Graduate Program: Biology

File Format

application/pdf

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Additional Files

Rachel McDonnell_g2_h1.mp4 (495249 kB)
Video, Group 2, Heat 1

Rachel McDonnell_g2_h1.srt (4 kB)
Closed Captioning SRT File for Group 2, Heat 1

Rachel McDonnell - Finals.mp4 (461924 kB)
Video, Final Round

Rachel McDonnell - Finals.srt (4 kB)
Closed Captioning SRT File for Final Round

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Nov 12th, 12:00 PM Nov 12th, 1:30 PM

24andMore: Using Genomics to Improve Walleye (Sander vitreus) Stocking in Iowa

Walleye, Sander vitreus, is one of the top gamefish in Iowa. Due to poor natural reproduction in many Iowa waterbodies, populations are managed with stocking. There are two strains of walleye used to stock Iowa’s inland waters: a river strain derived from the Mississippi River near Genoa, WI and a lake strain derived from Spirit Lake, IA. Each strain may have unique characteristics relative to their environment that could affect the fitness and success of fish stocked. The goal of this study is to understand the genetic diversity within and between each strain to offer stocking guidance to the Iowa Department of Natural Resources. Genome-wide single nucleotide polymorphisms (SNPs) were used to genotype individuals. Broodstock individuals from each strain and various year classes were sampled. Population genetic analyses were performed and preliminary analyses will be presented.