Long-term changes to kelp forests from ‘the blob’

The nearshore rocky reefs of the Santa Barbara Channel are dynamic places, with populations of fish, mollusks, algae and other assorted sea life shifting in response to currents, storms and a variety of other conditions. They wax and wane, typically returning to some sort of baseline composition — a kind of standard demographic — after disturbances temporarily disrupt the neighborhood, and then subside.