Mussel Watch Program: Current Approach Reflections on The
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Mussel Watch Program: Current Approach Reflections on the Mussel Watch Program Pilot Studies Mary Rider, CSS Inc./NCCOS Co-authors: Dennis Apeti, NCCOS Felipe Arzayus, NCCOS Volume 3; Monitoring & Assessment; p 44. Fate & Effects of Contaminants Program Review, Sept 15-17, 2020 Rotational Regional Model Contaminants of Emerging Concern (CECs) Historic Approach Flame Retardants (FR) Alternative Flame Retardants (AFR) • Yearly collection, adequate for supporting Brominated Flame Retardants (BFR) emergency response Alkylphenol Compounds (AP) Perfluorinated Compounds (PFC) • Sites not in known hotspots Pharmaceuticals and Personal • Need to assess new and emerging Care Products (PPCP) environmental parameters • Budget constraints 5. West Coast/ 1. Great Lakes Alaska/Hawaii New Approach 2.Northeast • Larger list of contaminants including CECs • 300 legacy + 300 CEC ~600 contaminants 4. Gulf of • Regional sampling leveraging local resources Mexico 3. Southeast/ • Combine historic and new targeted sites Puerto Rico • Considering a 5-year rotation Rotational Regional Model Pilot Studies (with collaborators) Planned and executed studies Retrospective Great Lakes 2015 Chesapeake Bay, MD/ Charleston, SC 2016 Gulf of Maine 2017 Gulf of Mexico 2018 California 2019 Washington/Oregon 2020 Southeast (pending) Assessing the feasibility of various designs • CEC bioaccumulation in MW sentinel organisms • Caged bivalves at targeted locations • Land-use impacts on CEC uptake • Stakeholder and end-user engagement Leveraging Resources Working with local stakeholders • MW methods are reproducible • Combining resources allows for more extensive sampling • MW benefits from local expertise and resources for study design, sampling support and product development • MW supports local monitoring efforts (examples: WAFW T-BiOS program sites, NOAA’s Biscayne Bay Habitat Focus Area) • Sometimes counting on collaborator support is not feasible Successful in-house collaborations • Ecotoxicology Branch, Biogeography Branch, Cooperative Oxford Lab, and NIST’s Hollings Marine Lab Apeti et al., 2020 Accumulation and detection of CECs are compound and matrix dependent PFC Contaminants in South Carolina A multi-matrix analysis 44% of CEC compounds is needed to assess analyzed were coastal contamination detected in tissue • Tissue, sediment, POCIS Sites 7% of CEC compounds were detected at more than 10% of the sites in tissue Sediment Tissue Detection Frequency (%) Frequency Detection Detected contaminants Flexible study designs allow us to address specific questions CEC chemicals appear to be associated with land-use Urban/ categories Industrial Caged bivalves could be a great tool to assess CEC bioaccumulation and organism health at target locations Urban devoid of natural reefs • However, this approach is resource Forested/ Agriculture intensive Suburban Apeti et al., 2018 Nationwide perspectives Quality assured sampling methods means: of • Data can be analyzed separately 94% or combined with other national sites had data for nationwide perspectives CEC detect(s) using robust analytical techniques in tissue and modeling Three outliers were removed Concentrations for for visualization: compounds with five DEET – 83.45 DEET – 64. 99 or more detects Caffeine – 57.71 Rotational Regional Model Challenges • Maintaining stakeholder commitment • Loss of trend analysis and baseline data • Matrix dependent bioaccumulation • Wild population die-offs between sampling years Benefits • Larger list of contaminants including CECs • Leveraging local and in-house resources • Design flexibility • Maintain national perspective Products Tech Memos In partnership with local stakeholders to maximize the utility of the products https://coastalscience.noaa.gov/ https://coastalscience.noaa.gov/products-explorer/ Publicly archived data https://www.ncei.noaa.gov/ Future Directions Finish pilot studies in 2021 • Sampling both sediment and bivalves in 2020/2021 National CEC analysis with pilot study data Mid-Atlantic Increase in-house analytical capabilities 2021 Bivalves are being exposed to CECs in our coastal waters What are the risks? Metabolomics Southeast What are the drivers? 2020 (pending) Ancillary data (land-use, demographics) + sites in NOAA’s Biscayne Bay Habitat Focus Area.