ESTIMATING DYNAMIC ENERGY BUDGET MODEL PARAMETERS FOR QUAGGA MUSSELS

Dreissena spp. impacts on infrastructure and ecosystems are well-documented, particularly their significant effects on nutrient cycling and productivity within the Great Lakes. These effects are influenced by mussel density, growth, and reproduction. To predict mussel growth, filtration, temperature dependence, and nutrient fluxes, we compiled existing data to calibrate a Dynamic Energy Budget (DEB) model specifically for Quagga Mussels (Dreissena rostriformis bugensis). We estimated DEB parameters including shape coefficient, Arrheinius temperature, surface area-specific maximum ingestion rate, and surface area-specific maximum searching rate. Our model incorporates an innovative allometric analysis of a substantial, long-term dataset from field-collected mussels in the Great Lakes and derives two distinct temperature-dependent relationships based on oxygen consumption and filtration rates. Additionally, it uniquely considers both food quantity and quality, enhancing its realism. However, since field-collected data are not designed for precise parameter estimation, significant uncertainties in parameter estimates currently persist, highlighting the need for well-controlled laboratory experiments. The components of this model hold potential for integration into biogeochemical models to elucidate mussel effects on nutrient cycling and their dependencies on future environmental changes. This integration could significantly enhance our understanding of ecosystem dynamics and inform effective management strategies for invasive species in aquatic environments.

Presentation Preference: Oral

Primary Presenter: Tongyao Pu, University of Michigan (tongyaop@gmail.com)

Authors:

Tongyao Pu, Cooperative Institute for Great Lakes Research, School for Environment and Sustainability, University of Michigan  (tongyaop@umich.edu)

Shay Keretz, Cooperative Institute for Great Lakes Research, School for Environment and Sustainability, University of Michigan  (skeretz@umich.edu)

Ashley Elgin, NOAA, Great Lakes Environmental Research Laboratory  (ashley.elgin@noaa.gov)

Casey Godwin, Cooperative Institute for Great Lakes Research, School for Environment and Sustainability, University of Michigan  (cgodwin@umich.edu)

Mark Rowe, NOAA, Great Lakes Environmental Research Laboratory  (mark.rowe@noaa.gov)

Hunter Carrick, Central Michigan University  (carri1h@cmich.edu)

Paul Glyshaw, NOAA, Great Lakes Environmental Research Laboratory  (paul.glyshaw@noaa.gov)

Rachel Pietscher, NOAA, Great Lakes Environmental Research Laboratory  (rachel.orzechowski@noaa.gov)

Henry Vanderploeg, NOAA, Great Lakes Environmental Research Laboratory  (henry.vanderploeg@noaa.gov)