Why Kill the Dolphins? :: Marine Life Whaling Fishing Conservation Essays

Why eradicate the Dolphins?Dolphins make up the largest and most diverse family of cetaceans. The family contains 26 recognized species of which 13 tend to have long well defined beaks and streamlined strapping bodies. Many vary in size, shape, colors, beaks and flippers, as benignants have sundry(a) characteristics. One of the most common dolphins that be embed in grey California is the bottlenose dolphin (Kelly). The bottlenose dolphin is mainly found in coastal waters between 45 degrees north and 45 degrees south, also in Northern Europe waters. It is believed that thither are twain types of bottlenose dolphin regional wise oceanic form and coastal form. This species is studied the most by biologists (Jefferson). The coastal population lives in evenhandedly open groups with twenty or less in a pod, both(prenominal) groups are found to contain more in open ocean. It is not uncommon for these species to interact and breed with other species, as would a human interact with other diverse humans. The dolphins feeding behavior is adapted to the approachability of resources. They sometimes are known to work together to slit tilt from large schools, they also trail behind large fishing boats to catch what falls behind (Leatherwood). A large problem today is the consequent exploitation of the bottlenose dolphins in the Black sea. The dolphins suffer from entanglement in gillnets, shark nets, shrimp trawls, and travelling bag seine nets in the eastern peace-loving tropical tunny fishery. In the past twenty years a large amount of bottlenose dolphin have been killed due to the tuna fish fishery. In the Eastern Pacific swim large schools of tuna, these shoals tend to be under herds of dolphins, for some unexplained reason. Because of this, fishermen can easily find schools of tuna. The tuna are being caught under purse seine nets, which encircles the shoals of tuna and thus is pulled back on board the fishing vessel, catching both tuna and dolphin. Ini tially the mortality rate was 500,000 each year for dolphins alone. Although some efforts are made to encourage the dolphins to leave the net by backing fell part of the net, which allows the dolphins to escape, there are still a large progeny of mortalities (Bryant). On the other hand, in the last few years there has been dramatic progress in stopping the fishing industries from using purse sine nets. It has been found that dolphins are in immediate danger of extinction if these fishing techniques dont stop.