Happy Orcas. Dead Orcas. State of Southern Resident Orcas . Almost 20% orcas died between 1995 and 2000. Reproductive females have not produced young in ten years. Only four adult males in the entire community of 80 whales. Puget Sound Orcas and PCBs.
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1000 g Biomass
DDT in wet weight of whole organism
(About 1000x Initial Concentrations!)DDT in a Long Island Estuary(from Woodwell, Wurster and Isaccson, 1967)