Identifying the parasite communities of common Lake Erie invasive, aquaculture, and game species

Abstract:
Parasites are ubiquitous. Yet, aside from a few heavily studied systems, parasite species
composition, relative abundance, and ecological impacts are poorly understood. The mysteries of parasites are further clouded by aquatic invasive species (AIS).

In many ecosystems, including the Pennsylvania waters of Lake Erie, it is unclear if—and how much—AIS impact native host parasite dynamics or if they have caused the concurrent introduction of non-native parasites.

Knowing what parasites are present in common AIS and if those parasites are being transferred to other economically important species, i.e., popular game fishes and species that may be targeted for aquaculture, is important for overall ecosystem health and ensuring sustainable
fisheries and future aquaculture activities.

This project aims to fill this knowledge gap through field surveys designed to document the presence and species composition of parasites in common AIS and sport fishes, including those commonly caught recreationally and potential targets for Great Lakes aquaculture cultivation. We plan to involve undergraduates in our research by supporting eight students from Penn State Behrend (PSB) to participate in data collection and organizing outreach events focused on introducing the public to parasite lifecycles. Upon completion, we aim to produce maps of parasite distribution and abundance to better predict the impact of parasites and AIS on Lake Erie ecosystems and fisheries.