"Bottom Trawling is the subsea equivalent of collecting the entire farm, when the goal is to bring in a bushel of apples." - Dr. Sylvia Earle
Bottom trawlers drag weighted nets along the sea floor, scraping it bare as they scoop up everything in their path. Corals, as well as any unintended species of fish, are called “bycatch” that trawlers throw overboard, dead or dying.