A coincidence? I don't think so.
I think all of these sardines were either poisoned when Countrywide/Bank of America dumped all of their shredded toxic mortgages including the "Friends of Angelo" loan program into the ocean or the sardines simply see the writing on the wall. The canary in the California coal mine.
Take heed snail darter. Your ass is next. http://www.necn.com/03/09/11/Over-a-million-sardines-wash-up-near-Cal/landing_scitech.html?blockID=436460&feedID=4213