Northwest Fisheries Science Center

Monster Seminar JAM

Event Information

Monster Seminar JAM - Toxics in the Puget Sound Food Web: Understanding the Problem in Order to Move Towards Improvement

Ms. Sandie O'Neill, Washington Department of Fish and Wildlife/NOAA

Long Description:
More Information:
Puget Sound is a physically and biologically complicated ecosystem that has been altered dramatically by anthropogenic activities. Inputs of toxic chemicals into Puget Sound are just one of the many stresses that can produce harmful outcomes for fish, marine birds and mammals, and humans. The Washington Department of Fish and Wildlife has monitored the accumulation of persistent toxics like PCBs, PBDEs, PAHs, and mercury in English sole (Pleuronectes vetulus), demersal rockfish (Sebastes spp.), Chinook (Oncorhynchus tshawytscha) and coho (O. kisutch) salmon, and Pacific herring (Clupea harengus pallasi). This dataset now allows us to evaluate how variation in fish life history affects accumulation of various toxic chemicals, and how these compounds move through the food web of Puget Sound. Understanding the flow of toxics to, and their effects on, the benthic and pelagic food webs is a critical piece of information for defining the causal links between human activities and contaminant impacts on the ecosystem, which in turn helps to prioritize management strategies. For example, PBDEs appear to be accumulating throughout the pelagic food web in the central and southern Puget Sound basins, suggesting widespread diffuse loadings to marine waters. Substantial efforts are needed to characterize and reduce the amounts of toxic chemicals entering the Puget Sound ecosystem, including measuring loadings from various sources, estimating the reservoirs of those contaminants in the atmosphere, water, sediments, and biota of Puget Sound, and quantifying the fluxes among these compartments

2725 Montlake Blvd. E.
Seattle,  WA  98112

Date and Time:
Thursday, November 6, 2008, 11:00 am - 12:00 pm

Contact Person(s):
Blake Feist
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Diane Tierney-Jamieson
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