State Investigating Shark Die-Off On Peninsula Shores

REDWOOD CITY (CBS/AP) — State wildlife officials were investigating why dozens of dead sharks have been washing up on the western shore of San Francisco Bay.

The California Department of Fish and Game was sending a biologist to Redwood City on Monday, where residents have been finding leopard shark carcasses littering the shoreline.

Leopard shark die-offs are fairly common in the bay, with larger ones seen in 2006 and 2007. Experts say the causes range from release of pollutants by industry to infections.

Sean Van Sommeran of the Pelagic Shark Research Foundation said it’s possible that Redwood City’s tidal gates played a role.

Van Sommeran said the gates control a system of lagoons and canals, and may have led to water stagnation and depleted oxygen levels.

(Copyright 2011 by CBS San Francisco. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services may have contributed to this report.)

  • Kenneth Hoover

    Or maybe the radiaiton is finally killing on our shores now…..and not just Japans!

  • Heavy Rains May Be Cause Of Bay Area Shark Deaths « CBS San Francisco

    […] Reporting Holly Quan var addthis_product = 'wpp-257'; var addthis_config = {"data_track_clickback":true};SAN FRANCISCO (KCBS) – State biologists say they think they know what may have killed over 100 leopard sharks in the Bay Area in recent weeks. […]

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