mardi 9 décembre 2014

Arowana, Arowana (Osteoglossum bicirrhosum)

Arowana, Arowana    Osteoglossum bicirrhosum 




Classification / Names
Actinopterygii (ray-finned fishes)> Osteoglossiformes (Bony languages)> Osteoglossidae (Arowanas)

Size / Weight / Age
Maximum length: 90.0 cm TL male / unsexed; max. Published weight: 6,000 g.

environment
Freshwater; benthopelagic.

Climate / Range
Tropical; 24 ° C - 30 ° C

distribution
South America: Amazon River basin, Rupununi and Oyapock Rivers.

brief description
Body covered with very large scales; dorsal and anal fins almost fused with the caudal fin; and 2 barbs at the ends of the jaw. Adults are silvery, youth with greenish blue and a yellow bar-orange.

biology
These fish are omnivores with a tendency to feed on fish in the area. The top position of the mouth to capture its prey while swimming from below. You jump out of the water to feed on 
large insects (Coleoptera). E 'able to adapt to environments with low oxygen levels.






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