Fisherman-invented trap controlling Green Crab “cockroaches of the sea,” says Parks Canada scientist

green-crabsA researcher who spent years removing millions of green crab from a Nova Scotia estuary says evicting some of the cantankerous crustaceans has proven effective in controlling an invasive species that has wreaked havoc on marine ecosystems around the world. Known as the “cockroach of the sea,” the green crab can decimate marine environments as it reproduces quickly, mows down eelgrass with its claws and devours just about any species it comes across that’s comparable in size or smaller. “They can upset entire ecosystems. They cause cascading problems,” said Chris McCarthy, a Parks Canada scientist at Kejimkujik National Park. Read the rest here 19:55