By Steve Gorman LOS ANGELES (Reuters) - Masses of tiny red crustaceans known as tuna crabs have washed up for a second straight year along stretches of the Southern California shoreline in a phenomenon marine scientists say is linked to warmer ocean currents flowing up the coast. Waves of the dead or dying tuna crabs have been found carpeting the sand at various San Diego and Orange County spots, including Imperial, Huntington and Newport beaches, since the middle of last week. The crabs are typically concentrated in Mexican waters off the southern and central Baja Peninsula, but warming currents periodically carry the crustaceans farther north and closer to shore, according to scientists.
