Sea otters returned to California estuary; eelgrass later expanded 600% https://ift.tt/5cLQ18H

Sea otters returned to California’s Elkhorn Slough in 1984 when pollution had severely affected its ecosystem. Their recovery triggered changes across the food web, helping eelgrass beds expand by 600%. A later study found marsh-edge erosion slowed by an average of 69%, as otters reduced populations of root-eating crabs.

from Times of India https://ift.tt/pkvtWgR