2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/27/2021 | 2:00 PM - 3:30 PM | THE IMPACT OF CYANOBACTERIA ON TWO POPULATIONS OF QUAGGA MUSSELS | Virtual Platform
THE IMPACT OF CYANOBACTERIA ON TWO POPULATIONS OF QUAGGA MUSSELS
Quagga mussels (Dreissena bugensis) first invaded the Great Lakes region of North America in the 1980’s and more recently the western United States. This project investigates how separate populations of mussels respond to environmental stressors and if they are genetically distinct. Mussels were collected from the Detroit River, MI and Lake Mohave, NV. Experiments compared mussel spawning between the two populations when exposed to cyanobacteria: (Aphanizomenon flos-aquae, Planktothrix suspensa, Anabaena flos-aquae, Microcystis wesenbergii). Cyanobacteria was diluted into three concentrations: 550, 340, 130, 0 µg/L chlorophyll-a. The two populations of mussels responded with a similar reduction in spawning when exposed to 550 µg/L A. flos-aquae (p<0.001). Oxidative stress analysis was performed with concentrated microcystin-LR (MCLR) over 72 hours at 400, 100, and 0 µg/L. Peak oxidative stress occurred at the highest concentration of MCLR at 42 hours. For the genetic comparison, DNA was extracted with DNAzol Direct from 5 Mojave Lake and 5 Detroit River quagga mussels. COI sequencing indicated both mussel populations had the same quagga haplotypes. Understanding differential responses among quagga mussel populations to stressors such as cyanobacterial blooms is critical for management efforts.
- Contaminants
- Biological interactions
- Biological effects
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Katrina Lewandowski
(), Wayne State University, lewandowskikatrina@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Kishore Gopalakrishnan
(), Wayne State University, kishore.gopalakrishnan@wayne.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Jeffrey Ram
(), Department of Physiology, Wayne State University, jeffram@wayne.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Donna Kashian
(), Wayne State University, dkashian@wayne.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -