Biochemistry and Physiology
Biochemistry and Physiology
In the Biochemistry and Physiology Branch, we study how contaminants, hypoxia, and nutrient deficiencies affect aquatic animal health and microbial ecosystem services. Additionally, we are developing Environmental DNA (eDNA) and metabarcoding methods to detect invasive and endangered species and characterize algal communities in aquatic ecosystems.
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Prior Exposure to Estrogen Enabled Bass to Better Survive A Bacterial Infection, but With an Energetic Price Tag
Summary of the published study: Exposure to 17α-ethinylestradiol results in differential susceptibility of largemouth bass ( Micropterus salmoides ) to bacterial infection (Leet et al. in review)
READI-Net: Providing Tools for the Early Detection and Management of Aquatic Invasive Species
The USGS has developed the Rapid environmental (e)DNA Assessment and Deployment Initiative & Network (READI-Net) to accelerate the implementation of environmental DNA (eDNA) analysis as a best practice for the early detection of aquatic biological threats. READI-Net provides tools and a strategy to collect and deliver early detection data for natural resource managers and public health protection...
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, Columbia Environmental Research Center, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, New York Water Science Center, Northern Rocky Mountain Science Center, Upper Midwest Environmental Sciences Center, Wetland and Aquatic Research Center , Wyoming-Montana Water Science Center, Pacific Northwest Environmental DNA Laboratory
Using Effects-Directed Analysis to test for Endocrine-Active Chemicals
Effects-directed analysis (EDA) reverse-engineers environmental toxicity testing by measuring effects on cells first, and identifying the particular chemicals later. In this publication, we reviewed published information on EDA methods to improve future methods.
Effects of Early Life Stage Exposure of Largemouth Bass to Atrazine or a Model Estrogen (17α-Ethinylestradiol)
Early development is a sensitive window for estrogenic endocrine disruption in largemouth bass. Atrazine treatments caused changes to gene expression patterns that were both similar to estrogen and distinct from estrogen.
Costs and Benefits of Nitrapyrin
In December 2020, our research group (as part of the Food Integrated Science Team) published a review of nitrapyrin costs and benefits in the journal Environmental Science & Technology .
Molecular Section: eDNA Research
Environmental DNA (eDNA) research at CERC focuses on the development and utility of eDNA tools as well as interpretation of eDNA data in real-world management applications. We work with academic, state, federal and international partners in developing standards and best practices for eDNA technology and exploring the factors that affect eDNA detection in the field. Our lab's eDNA research covers...
Thiamine (Vitamin B1) Deficiency in Fish and Wildlife
In the last few decades, thiamine deficiency has been observed in fish and wildlife in the Great Lakes, Alaska, Sweden and several other areas in North America and Europe. Thiamine is an essential vitamin needed for cell function. Thiamine deficiency has been linked to neurological disorders, immunosuppression, and lower reproductive viability. These disorders potentially reduce populations of...