Massive California Fish Kill Blamed on Natural Causes

A massive fish die-off of an estimated 1 million sardines in Redondo Beach, California is being blamed on natural causes.

From this story in the Los Angeles Times
_A day after waking up to find a silvery carpet of dead fish on the surface of King Harbor, Redondo Beach set about the enormous task of ridding the marina of an estimated 1 million sardine carcasses before they started to decay. City officials said Wednesday that it would take days and cost at least $100,000 to clean up King Harbor after the sudden fish die-off that began Monday evening. The city declared a local emergency in an effort to obtain state and county aid for the cleanup. A crew of 200 workers has already removed more than 35 tons of fish, mostly by skimming the water's surface. But an additional 30 tons ˜ and perhaps more ˜ are believed to have collected in a 2-foot-thick layer on the bottom of the harbor, about 20 feet below.
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_"...The prevailing theory among scientists and wildlife officials is that something ˜ windy conditions, predators or perhaps a column of oxygen-poor water in the ocean ˜ forced masses of sardines into the harbor as a storm blew in Monday evening. Their huge numbers in such a confined area caused oxygen levels to suddenly plummet below life-sustaining levels.

The state Department of Fish and Game and USC marine biologists have found no evidence of significant water pollution, toxins or algal blooms, the usual culprits in fish kills._

The question is, what can you do with sixty tons of dead, quickly putrefying fish, if anything? Grind it into fertilizer? Pet food? Stinkbait?