Zebra mussel impacts on fish mercury concentrations

This project will assess the impact of zebra mussel invasion on fish tissue mercury concentrations in Minnesota lakes.

Background:

The research team aims to assess the impact of zebra mussel invasion on fish tissue mercury concentrations in Minnesota lakes. By utilizing existing fish mercury concentration data, the study will quantify the influence of zebra mussels on mercury levels and develop a predictive model based on zebra mussel presence and relevant covariates. The outcome will provide explicit predictions of mercury concentrations, guiding monitoring efforts towards potential hot spots. Collaborating extensively with state and tribal natural resource agencies, the project aims to enhance understanding of zebra mussels' role in mercury bioaccumulation, strategically allocate future monitoring, and mitigate the impact of this invasive species.

Activities:

  • Quantify the effects of zebra mussels on fish mercury concentrations in Minnesota lakes
  • Develop a predictive model of fish mercury concentrations for Midwestern lakes
  • Collaborate with state and tribal governmental agencies to maximize data footprint, design analyses, interpret and apply results, and communicate with stakeholders

By studying how these invasive mussels affect mercury buildup and considering environmental factors, MAISRC researchers aim to make accurate predictions about mercury levels in fish. This will help focus monitoring efforts where they're needed most, especially in key fishing areas. Researchers are also making the most of existing data to guide future research on how zebra mussels influence mercury accumulation.

 

Project Information:

Project manager: Gretchen Hansen, Department of Fisheries, Wildlife, and Conservation Biology

Lab: Hansen Lab

Collaborating partners: 
Caren Ackley, Mark Leuhring, and Adam Ray, Great Lakes Indian Fish and Wildlife Commission 
Jennifer Brentrup, MN Pollution Control Agency 
Paul Radomski, Heidi Rantala, and Isaiah Tolo, MN Department of Natural Resources 
Dr. Erin Schliep, North Carolina State University 
Tyler Wagner, Pennsylvania State University

Project timeline: 2024-2025

Funded by: MAISRC and the Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources