Blast fishing, when dynamite or other explosives are used to stun or kill fish, is a practice used in many villages and isolated regions of the world. Hundreds of fish can be seen strewn across the reef, left as bycatch, such as these tropical fish in Thailand. Fishers are targeting larger, valuable species such as grouper which command a hefty price at the market—yet all the reef species pay the price. The practice is considered unsustainable since the entire food web is disrupted. Read more about the effects of dynamite fishing and other field notes from East Africa.