Fisherman in Southeast Asia, Africa and the Aegean Sea practice this method, also called explosive or dynamite fishing, to catch fish even though it is illegal in most places.
Fishermen who use this method set explosives, usually homemade, in the water to stun entire schools of fish at once. Shockwaves from these explosions can be very hazardous to the surrounding environment, especially to sensitive coral reefs.
Homemade explosives may contain damaging pollutants such as kerosene and fertilizers, further degrading the environment. The explosions instantly transform dynamic ecosystems into empty, lifeless deserts.