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Monday, January 25 • 1:20pm - 1:40pm
Spatial Patterns of Charter Boat Catches In Lake Michigan: Analyzing Patterns and Web-Based Visualization

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AUTHORS: Tomas O. Höök*, Purdue University Forestry and Natural Resources and Illinois-Indiana Sea Grant; Nicholas Simpson, Andrew Honsey, Jarrod Doucette –Purdue University FNR; Edward Rutherford, NOAA-GLERL

ABSTRACT: Lake Michigan supports important charter boat fisheries targeting various species of salmon and trout. Charter boat operators are required to report a variety of information for each fishing trip, including species harvest, number of anglers and time spent fishing, as well as the 10-minute grid cell fished in. We compiled these spatial data collected by the Illinois, Michigan and Wisconsin Departments of Natural Resources from 1992-2012. We analyzed spatial patterns in harvest and harvest-per-unit-effort of salmonines over time, and compared observed patterns with hypotheses based on recent foodweb changes (e.g., decreased offshore production) and physical trends (e.g., lake warming).We also developed a web-based spatial visualization so that anglers can access monthly patterns of salmonine harvest and use this information to make fishing decisions. We will discuss implications of observed spatial changes in salmonine harvest and potential utility of our web-based visualization.

Monday January 25, 2016 1:20pm - 1:40pm EST
Gerald Ford