University of Illinois Urbana-Champaign

Yellow Perch Population Assessment in Southwestern Lake Michigan, Including Evaluation of Sampling Techniques and Identification of the Factors that Determine Yellow Perch Year-Class Strength April 1, 2008 – June 30, 2009

Redman, Rebecca A.; Czesny, Sergiusz J.; Dettmers, John M.; Martin, Benjamin; Zapt, Daniel

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https://hdl.handle.net/2142/18182

Description

Title
Yellow Perch Population Assessment in Southwestern Lake Michigan, Including Evaluation of Sampling Techniques and Identification of the Factors that Determine Yellow Perch Year-Class Strength April 1, 2008 – June 30, 2009
Author(s)
  • Redman, Rebecca A.
  • Czesny, Sergiusz J.
  • Dettmers, John M.
  • Martin, Benjamin
  • Zapt, Daniel
Issue Date
2009-09-18
Keyword(s)
  • yellow perch
  • Lake Michigan
  • recruitment
  • year-class strength
  • recreational fishery
  • zooplankton abundance
  • early life history
  • diet
  • Division of Fisheries
  • Illinois Department of Natural Resources
  • Division of Fisheries, Illinois Department of Natural Resources
Abstract
The objectives of this study are to expand the Illinois Department of Natural Resources (IDNR) annual yellow perch (Percaflavescens) stock assessment data, monitor densities of age-0 yellow perch, and identify factors likely to have limited yellow perch recruitment since 1989. We sampled adult yellow perch during the spring to assess reproductive potential and determine age and size structure of the spawning population. Anal spines were collected from yellow perch at two known angling sites and analyzed to determine the angler-caught age distribution. Age-0 yellow perch were sampled at multiple depths and distances from shore with neuston nets, a mid-water Tucker trawl, small mesh gill nets, and a bottom trawl. We compared the use of gill nets and bottom trawling for sampling demersal age-0 yellow perch. We also monitored yellow perch egg skein densities, post-larval yellow perch abundance, age-0 yellow perch diets, and continued to evaluate factors that might regulate yellow perch year-class strength. The results of this project will enable fish managers to develop effective management strategies for this important native sport fish. Larval yellow perch sampling will expand our understanding of the early life history of yellow perch in terms of larval fish movements, feeding behavior, and survival. Early life history data will eventually lead to an understanding of factors that affect juvenile survival and future year-class strength. We highlight below some of the important results from 2008 sampling associated with our study objectives.
Publisher
Illinois Natural History Survey
Series/Report Name or Number
  • Yellow Perch Population Assessment in Southwestern Lake Michigan
  • Technical Report INHS 2009 (27)
  • Federal Aid Project F-123 R-15
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/18182
Sponsor(s)/Grant Number(s)
INHS Technical Report Prepared for Division of Fisheries, Illinois Department of Natural Resources
Copyright and License Information
This document is a product of the Illinois Natural History Survey, and has been selected and made available by the Illinois Natural History Survey and the University Library, University of Illinois at Urbana-Champaign. It is intended solely for noncommercial research and educational use, and proper attribution is requested.

Owning Collections

Technical Reports - Illinois Natural History Survey PRIMARY
Reports produced by INHS staff, usually as deliverables for assessment projects funded by federal or state agencies or non-governmental organizations.