Bottom trawling is the fishing practice of dragging large nets weighted with chains or other heavy gear across the seafloor to catch groundfish species such as rockfish, cod, and sole.

• 底拖网作业是拖著装有锁链或其他重型渔具的大网，横扫过海底捕捉底栖鱼类，如栖于礁石中的鱼类、鳕鱼和比目鱼。