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arapaima

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arapaima (ăr'əpī`mə), tropical fish, Arapaima gigas, of the Amazon basin. It is perhaps the largest of the strictly freshwater fishes, reportedly reaching a length of 15 ft (4.5 m), but averaging 7 to 8 ft (2–2.4 m) in length and 200 lb (90 kg) in weight. The dorsal and anal fins of the arapaima are placed so far back that they appear to be part of the tail fin, giving a massive appearance to the posterior region. The scales are olive-green, turning increasingly reddish in the tail region and becoming crimson near the tail fin. The swim bladder swim bladder, large, thin-walled sac in some fishes that may function in several ways, e.g., as a buoyant float, a sound producer and receptor, and a respiratory organ.
..... Click the link for more information. , as in all members of the order Clupeiformes, is open to the pharynx; in the arapaima it is rich in blood vessels and serves as a lung. The arapaima uses its fins to hollow out a nest in clear, shallow, sandy-bottomed areas. It is a graceful swimmer despite its bulk, and it is valued as an aquarium fish as well as for food. It is classified in the phylum Chordata Chordata , phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate
..... Click the link for more information. , subphylum Vertebrata, class Osteichthyes, order Clupeiformes, family Osteoglossidae.
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A number of fish species vie for the position of the world's largest freshwater fish, including the arapaima of the Amazon river and the Mekong giant catfish.
One of the world's largest freshwater fish on the verge of extinction by Asian News International
Guyana land of many rivers which is home to the worlds largest, most powerful single drop waterfall Kaieteur Falls and as it cascades down its windy rivers, swims the worlds largest freshwater fish the Arapaima and alongside it skips the rivers surface, pink dolphins, as they see beyond their river basin banks into unspoilt dense jungle, which lurks the largest S.
Deaths by Liverpool Echo (Liverpool, England)
Its more famous endangered creatures include the jaguar, giant river otter, giant anteater, harpy eagle, green anaconda, Guianan cock-of-the-rock, arapaima, and tapir.
Climate for conservation: by using market-based mechanisms to provide ... by Gies, Erica / Americas (English Edition)
 
 
 
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