1 / 15

Persistent Bioaccumulative and Toxic Contaminants in Puget Sound’s Pelagic Food Web

Persistent Bioaccumulative and Toxic Contaminants in Puget Sound’s Pelagic Food Web. James E. West, Jennifer H. Lanksbury , Puget Sound Assessment and Monitoring Program, Washington Department of Fish and Wildlife

korene
Download Presentation

Persistent Bioaccumulative and Toxic Contaminants in Puget Sound’s Pelagic Food Web

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Persistent Bioaccumulative and Toxic Contaminants in Puget Sound’s Pelagic Food Web James E. West, Jennifer H. Lanksbury , Puget Sound Assessment and Monitoring Program, Washington Department of Fish and Wildlife Sandra M. O’Neill, Gina M. Ylitalo, NOAA Fisheries, Northwest Fisheries Science Center, Seattle, WA

  2. Simplified pathway for PCBs entering and biomagnifying in the pelagic food web Source: Seattle Post-Intelligencer “The Zone” thezone@seattlepi.com

  3. We added three species/groups…… Primary producer Phytoplankton (POM) Pacific hake Primary consumer Krill (Euphausia pacifica) “resident” predators Pacific hake (Merluccius productus) and Walleye pollock (Theragra chaclogramma)

  4. Sampling for phytoplankton (particular organic matter, POM)

  5. Sampling for krill… … and hake

  6. Focus on three basins and one urban embayment

  7. Elliott Bay samples

  8. resident subadult Chinook 9 mo. in salt water

  9. Resident adults 2-3 yrs in salt water 9 mo. in salt water

  10. Results • Basin-specific bioaccumulation and magnification correlations • Urban influence in low-trophic-level of the pelagic food web • Three key factors highly correlated w/ PBTs • Residency (proximity to source) • exposure time • trophic level

More Related