Bottom trawling is trawling along the seafloor. It is also referred to as "dragging". The scientific community divides bottom trawling into benthic trawling and demersal trawling. Benthic trawling is towing a net at the very bottom of the ocean and demersal trawling is towing a net just above the benthic zone.

What is bottom trawl used for?

Bottom trawls are a type of mobile fishing gear consisting of very large nets that are dragged on the seafloor to catch groundfish and other species. Bottom trawls are used in virtually all East Coast, West Coast and Alaska fisheries to catch shrimp and fish such as cod, flounder and rockfish.

What is the meaning of bottom trawl?

Bottom trawling is a fishing practice that herds and captures the target species by towing a net along the ocean floor.