Sustainable fishing targets specific species while leaving others undisturbed. Harvesting seafood and fish with traps or pots does very little damage to other sea creatures. Other sustainable techniques include hook-and-line fishing, trolling, diving, and using nets that are designed to target specific schools of fish. By contrast, bottom trawling -- also called dragging-- with long nets damages seafloor habitat and kills many sea creatures. Targeted fishing helps preserve our oceans' fish and seafood for generations to come, and helps protect animals such as sea turtles and dolphins.