Sea meadow loss

Seagrass meadows are being lost at rate of "comparable to that for tropical rainforests and coral reefs."

They protect[ed] edible crustaceans, like shrimps and crabs, and juvenile fish such as salmon. In addition, seagrass meadows provide[d] habitats for endangered species like dugongs, manatees, and sea turtles.

-- from Meadows of the sea in 'shocking' decline