Skip to main content
U.S. flag

An official website of the United States government

Tingley presents at Public Fisheries Seminar for Lake Michigan

April 8, 2021

Stakeholders Discuss Ecological Changes Occurring Throughout Lake Michigan's Food Web.

Dr. Ralph Tingley (GLSC, Ann Arbor, Michigan) was an invited speaker at a virtual Public Fisheries Seminar hosted by Illinois-Indiana Sea Grant on March 30, 2021. Tingley presented on results of the 2020 USGS bottom trawl survey on Lake Michigan, historical trends in prey fish populations over time, and potential hypotheses and driving mechanisms behind observed trends. Other presenters included Annie Scofield of the US Environmental Protection Agency who presented on lower trophic level status in Lake Michigan, Frank Sladek of Illinois Department of Natural Resources who discussed hatchery rearing of trout and salmon, and Matt Kornis of US Fish and Wildlife Service who highlighted research on salmonid survival, growth, and diet competition. The presentations provided an audience of approximately 40 anglers, charter captains, and fisheries managers with extensive insight into the ecological changes occurring throughout Lake Michigan’s food web. Lively discussion occurred throughout the seminar among presenters and the public and included topics such as prey fish seasonal movements, the effects of increasing ultraviolet radiation and water clarity on fishes and zooplankton, overlap among salmonid diets, and the effectiveness of different rearing practices for salmon and trout. The seminar was presented by Dr. Mitchell Zischke of Purdue University.

Get Our News

These items are in the RSS feed format (Really Simple Syndication) based on categories such as topics, locations, and more. You can install and RSS reader browser extension, software, or use a third-party service to receive immediate news updates depending on the feed that you have added. If you click the feed links below, they may look strange because they are simply XML code. An RSS reader can easily read this code and push out a notification to you when something new is posted to our site.