2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/22/2018 | 9:30 AM - 9:45 AM | A COMPARISON OF CYANOBACTERIA SENSITIVITY BETWEEN ASIAN CLAMS (CORBICULA FLUMINEA) AND QUAGGA MUSSELS (DREISSENA ROSTRIFORMIS BUGENSIS) | 430 B
A COMPARISON OF CYANOBACTERIA SENSITIVITY BETWEEN ASIAN CLAMS (CORBICULA FLUMINEA) AND QUAGGA MUSSELS (DREISSENA ROSTRIFORMIS BUGENSIS)
For aquatic invasive species, the salinity of their originating habitat can affect their success in adapting to novel freshwater systems. Invaders from brackish waters, such as quagga mussels (Dreissena rostriformis bugensis), may have more physiological challenges than species from freshwaters, such as Asian clams (Corbicula fluminea). The objective of this study was to compare the sensitivity of these two bivalves to the environmental stressors Microcystis aeruginosa and its associated toxin, microcystin. In laboratory assays, we measured oxygen consumption and filtration rate in both species to establish baseline differences and exposed them to Microcystis to compare the difference in the magnitude of response between species. Sensitivity to microcystin was evaluated through two oxidative stress biomarkers, catalase and lipid peroxidation. Quagga mussels consumed more oxygen in the cyanobacteria treatments and at a higher rate than Asian clams. Microcystis reduced filtration rates in both species, with quagga mussels filtering Microcystis at an overall higher rate. Quagga mussels also had higher levels of oxidative stress than Asian clams. These results indicate that quagga mussels may be more sensitive to Microcystis and microcystin than Asian clams, possibly due to physiological differences associated with salinity histories.
- Mussel
- Invertebrate
- Phytoplankton
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Presenters/Authors
Anna Boegehold
(), Wayne State University, az1079@wayne.edu;
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Nicholas Johnson
(), USGS Great Lakes Science Center, njohnson@usgs.gov;
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Donna Kashian
(), Wayne State University, dkashian@wayne.edu;
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