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    Two Decades of Marine Biological Monitoring, Palos Verdes, California, 1972 to 1992

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    Subject
    Marine Biological Monitoring; Palos Verdes; California; 1972 to 1992
    Author
    Stull, Janet K.
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    94
    Issue
    scas/vol94/iss1; 1
    Metadata
    Show full item record
    URI
    https://scholar.oxy.edu/handle/20.500.12711/10967
    Abstract
    Approximately 1.25 x 10^ meters^ (330 million gallons) of treated <br /><br />wastewaters are discharged daily onto the Palos Verdes Shelf, off Los Angeles. <br /><br />Routine intensive marine environmental monitoring began in 1 972. A brief review <br /><br />of effluent emissions, Palos Verdes topography, natural disturbances (El Nino, <br /><br />storms), and sediment histories will provide background for a 20-year summary <br /><br />of the Palos Verdes biota: benthic infauna, epibenthic megain vertebrates, demersal <br /><br />fish, kelp, and fish tissue contamination. Dramatic improvements are evident. <br /><br />Diverse biological assemblages are more widespread. Dover sole fin erosion has <br /><br />disappeared and kelp beds flourish. Decreased but continuing bioaccumulation <br /><br />of DDTs and PCBs is a concern, however. Historic discharges of these chlorinated <br /><br />hydrocarbons persist in a partly buried sediment reservoir.
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