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Scientists find contaminated orca food http://apocadocs.com/s.pl?1232034361
The food supply of Puget Sound's endangered orcas is contaminated, a team of Canadian and Washington scientists has found.
The scientists measured persistent organic pollution concentrations in chinook salmon in order to understand the orcas' exposure to contamination in their food supply. Orcas, or killer whales, are actually a type of dolphin, are among the most contaminated marine mammals in the world, and are at risk of extinction in Puget Sound.
The so-called southern resident population of orcas that frequents Puget Sound was listed as an endangered species by the federal government in November 2005.
Southern resident orca whales seem to prefer chinook salmon for their diet — fish that the scientists found were contaminated with PCBs, flame retardants and other persistent chemicals that are retained in body fat.
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[Read more stories about:
contamination, marine mammals, PCBs, flame retardants]
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New!:
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Your Quips:
Bob says: "Predator fish in general are under siege -- now by our chemical effluent."
HarryP says: "Yo Bob, orcas are *mammals* not fish. Though they're "under seige" too, for sure."
Bob says: "urg, is my face red. It's even in the blurb above! thanks..."
HarryP says: "Your face is red from the PCBs not from embarrassment."
Bob says: "That's the liquor, not PCBs.... ;-)"
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'Doc Michael says:
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A new kind of food chain: the pollution chain!
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