Thousands upon thousands of red crabs have taken over San Diego’s beaches and coastline from Ocean Beach to La Jolla. These crabs, known as red tuna crabs (pelagic red crabs), have been washing up along the shoreline for the past few weeks. Their frequency of appearance is increasing, and has been suggested as due by the result of warm water carring them from their normal waters on the western coast of California. Species such as crab, live their entire life cycle from larva to adulthood in the water column from surface to sea floor. This makes them prone to being carried along the waterways by currents, winds, and tides.
Image credit: Linsey Sala