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Tuesday, February 7 • 8:00am - 12:00pm
Overview of Symposium (S7). Uncommon Techniques with Predators and Prey: Applying Novel Methods for Atypical Fish Diets

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K. Keeler-U.S. Geological Survey Great Lakes Science Center; kkeeler@usgs.gov
P. Armenio -U.S. Geological Survey Great Lakes Science Center
D. Castle-U.S. Geological Survey Great Lakes Science Center
E. Roseman- U.S. Geological Survey Great Lakes Science Center 

Abstract: Diet analysis is one of the most common ways to understand the basic ecology of a fish species. And while this information can be useful for an individual species, it can also be vital in documenting the overall health of a multitude of species during large ecosystem changes. Whether perturbations come about through invasive species, habitat degradation, or overfishing, analyzing individual diets can provide insight into why these broader population changes occur. However, dissection, processing, and analyzing an individual diet, let alone numerous diets, is an often time-consuming procedure. Continually, given the wide-range of habitat types, life-stages, and invasive species present in aquatic systems, not every fish species, nor every diet item, is often analyzed in the same manner suggesting issues of standardization. Presentations will showcase more novel diet analyzing methods (such as stable isotopes, fatty acid profiles, or sub-sampling procedures) for atypical fish species and/or their diet items (such as rare or newly introduced species) while working in a number of aquatic environments, or providing a comparison of processing individual diets with these newer methods.

Tuesday February 7, 2017 8:00am - 12:00pm CST
Grand Ballroom A

Attendees (3)