Power point presentation on The Goblin shark , the retractable jaw, PowerPoint

Power point on The Goblin shark , the retractable jaw, shape and colour of body as well as the electro-sensitive organs for finding prey - PowerPoint Presentation Example The goblin shark’s classification is as follows: it is from the kingdom Animalia, under the phylum chordata, class chondrichthyes, the cartilagenous fishes, subclass elasmobranchii, order lamniformes, family mitsukurinidae, genus mitsukurina, and species owstoni. The English common name is goblin shark, and its Japanese name is Ten-gu za-me, which is literally translated as goblin shark, due to the protruding snout. Slide 4 The goblin shark is mostly seen in the coastal areas of Tosa Bay and Boso Peninsula in Japan, where it was first seen. They are demersal, meso-pelagic to benthic, and are mostly found in the bottom of the ocean floor, as evidenced by fishermen catching them in nets that are dragged on the bottom of the ocean. They can be found as deep as 2000m. They are mostly found in temperate areas, but are also found around the tropics, as shown in the succeeding slide. Slide 5 As seen from the distribution pattern, in yellow, these are the areas where sightings of the goblin shark are recorded from mostly sparse literature available. Because of the inability of the shark to live in aquariums, presumably due to its adaption in living at great depths, other parts of its life cycle such as reproduction and growth are remained in obscurity. However, examining the bowels of dead goblin sharks have made their feeding habits and prey known. Slide 6 As apex predators of the ocean, goblin sharks are just like other sharks that have electro-sensitive organs called the ampullae of Lorenzini, which detect the motions of prey near the ocean floor. Their retractable jaws suck in prey, and with the combination of their blade-like teeth prevent the prey from escaping. They are also known to be nocturnal, due to some sightings of them surfacing the waters at night. Slide 7 The prey most found in the stomachs of the goblin sharks that were caught were small, mesopelagic teleosts such as lantern