Factors influencing the abundance of three common nearshore fishes in south-west Lake Michigan

William L. Stacy-Duffy, Sara M. Thomas, David H. Wahl, Sergiusz J. Czesny

Research output: Contribution to journalArticlepeer-review

Abstract

Variation in the distribution and abundance of nearshore fishes is critical to understand food web processes and fishery management issues in Lake Michigan. This study characterised patterns in abundance of three common nearshore species, yellow perch Perca flavescens (Mitchell), round goby Neogobius melanostomus (Pallas) and alewife Alosa pseudoharengus (Wilson), in relation to spatio-temporal, abiotic and biotic factors using gillnet sampling conducted across 5 years at multiple locations representing different substrates. Significant variations were observed in alewife and round goby catches between locations. A negative relationship between round goby and age-0 yellow perch catch was observed, indicating potential competition between the two species. This study demonstrates that variability in nearshore fish communities can be driven by factors including substrate and interspecific interactions. Given the prominent role these species play in Lake Michigan's food web and thus their importance to fishery production, a thorough understanding of these factors is warranted.

Original languageEnglish (US)
Pages (from-to)303-313
Number of pages11
JournalFisheries Management and Ecology
Volume27
Issue number4
DOIs
StatePublished - Aug 1 2020

Keywords

  • alewife
  • fish community
  • habitat
  • invasive species
  • round goby
  • yellow perch

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

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