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The arapaima is torpedo-shaped, with large, blackish-green scales and red markings. It is streamlined and sleek, with its dorsal and anal fins set near its tail. Arapaima scales have a mineralised, hard, outer layer with a corrugated surface under which lie several layers of collagen fibres in a Bouligand-type arrangement.
Arapaima gigas, also known simply as Arapaima, pirarucu, or paiche, [3] [4] [5] is a species of arapaima native to the basin of the Amazon River. Once believed to be the sole species in the genus, it is among the largest freshwater fish. The species is an obligate air breather, so it needs to come to the surface regularly to breathe air.
Similar to many Paleozoic and Mesozoic actinopterygians, their bodies are covered in rows of interlocking, rhomboidal ganoid scales that create an exceptionally protective, yet flexible armor around the fish. [4] The dorsal fin is located posterior nearly directly above the anal fin and very near the large caudal fin. Shortnose gar vary in ...
The scales of alligator gar are not like the scales of other fishes, which have flexible elasmoid scales; gar bodies are protected by inflexible and articulated ganoid scales that are rhomboidal-shaped, often with serrated edges, and composed of a tough inner layer of bone and hard outer layer of ganoin, which is essentially homologous to tooth ...
Jeremy had to get permission to fish for an arapaima, because it's an endangered species. JEREMY: "This is the biggest fish of my South American fishing career. A river monster as deadly as any ...
The type-species of the group, Arapaima gigas, is an important South American food source and charismatic representative of the region. [5] Both Arapaima and Heterotis are cultured for food in their respective countries due to their heartiness and meat, and the arapaima is a prized sport-fish, being the largest truly freshwater fish. [6]
BMW and Yamaha Motor have invested in U.S.-based rare earths processing startup Phoenix Tailings, the latest move by manufacturers to boost production of the strategic metals outside of China.
Staffing cuts at the World Trade Center Health Program were restored Friday, Feb. 21, after a bipartisan rally in support of the program that provides healthcare and monitoring for 9/11 responders ...