Theories abound after fish die en masse in marina

Dead fish float in the King Harbor area of Redondo Beach, south of Los Angeles, Tuesday, March 8, 2011. Millions of fish washed up dead in the harbor, triggering a cleanup effort by the city. (AP Photo/Alex Gallardo)

March 9, 2011 5:31:27 AM PST
After a night of gusty winds rocking their vessels, boaters in a Southern California marina awakened to find a carpet of silvery fish. About one million lifeless sardines packed into the harbor, stacking 12- to 18-inches deep in some spots.