Large metal plates and rubber wheels attached to these nets move along the bottom and crush nearly everything in their path.
Water life forms are very slow to recover from such damage.
Explosive fishing – the use of dynamite or other explosives to kill fish. Causes for major destruction of reef . Long-line fishing – long baited hooks used to catch swordfish, tuna, sharks, birds, and turtles. They are estimated to kill 180,000 birds worldwide every year.