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Posted Thu Aug 6 2009: from Desdemona Despair:
Dramatic Decline in SE Coastal Sharks
The eastern seaboard’s longest continuous shark-targeted survey (UNC), conducted annually since 1972 off North Carolina, demonstrates sufficiently large declines in great sharks to imply their likely functional elimination. Declines in seven species range from 87 percent for sandbar sharks (Carcharhinus plumbeus); 93 percent for blacktip sharks (C. limbatus); up to 97 percent for tiger sharks (Galeocerdo cuvier); 98 percent for scalloped hammerheads (Sphyrna lewini); and 99 percent or more for bull (C. leucas), dusky (C. obscurus), and smooth hammerhead (S. zygaena) sharks (Fig. 1 and table S5). Because this survey is situated where it intercepts sharks on their seasonal migrations, these trends in abundance may be indicative of coastwide population changes.
[Read more stories about: predator depletion, ecosystem interrelationships, overfishing]

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What happens when there are no sharks left to jump?

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