The Contribution of Invertebrates to the Seasonal Diets of Walleye in Lake St. Joseph
The aim of this project is to better understand the onshore and offshore feeding habits and movement of walleye on Lake St. Joseph. There is special emphasis on answering the question: if, when and how much do Walleye rely on invertebrates in general, and Mayflies in particular. Walleye are an economically and ecologically significant sport fish and Mayflies are an important bioindicator of ecosystem health and potentially have an intricate predator prey relationship. To better understand these interactions, we will reconstruct the seasonal diet of walleye, across many age classes and determine their foraging habits both onshore and offshore. Biological information will be collected from the walleye to determine any specific foodweb interactions and transient movements that may exist. To conserve and protect ecological processes in an everchanging world understanding natural interactions has never been more important.