Youtor
Ikan Aba aba Knife Fish makan cacing beku
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Knifefish • From Wikipedia, the free encyclopedia • Jump to navigationJump to search • Knifefish may refer to several knife-shaped fishes: • The Neotropical or weakly electric knifefishes, order Gymnotiformes, containing five families: • Family Gymnotidae (banded knifefishes and the electric eel) • Family Rhamphichthyidae (sand knifefishes) • Family Hypopomidae (bluntnose knifefishes) • Family Sternopygidae (glass and rat-tail knifefishes) • Family Apteronotidae (ghost knifefishes) • The featherbacks, family Notopteridae. • The aba, Gymnarchus niloticus • Four other unrelated fish species not in any of the above families: • Grey knifefish, Bathystethus cultratus. • Blue knifefish, Labracoglossa nitida. • Collared knifefish or finscale razorfish, Cymolutes torquatus. • Jack-knifefish, Equetus lanceolatus. • Gymnarchus • From Wikipedia, the free encyclopedia • Jump to navigationJump to search • Gymnarchus niloticus • Gymnarchus niloticus005.JPG • Conservation status • Least Concern (IUCN 3.1)[1] • Scientific classificationedit • Kingdom: Animalia • Phylum: Chordata • Class: Actinopterygii • Order: Osteoglossiformes • Suborder: Notopteroidei • Family: Gymnarchidae • Bleeker, 1859 • Genus: Gymnarchus • Cuvier, 1829 • Species: G. niloticus • Binomial name • Gymnarchus niloticus • Cuvier, 1829 • Gymnarchus niloticus – commonly known as the aba, aba aba, frankfish, freshwater rat-tail, poisson-cheval, or African knifefish – is an electric fish, and the only species in the genus Gymnarchus and the family Gymnarchidae within the order Osteoglossiformes. It is found in swamps, lakes and rivers in the Nile, Turkana, Chad, Niger, Volta, Senegal, and Gambia basins.[1][2] • Description and biology • Further information: Electroreception • G. niloticus has a long and slender body, with no caudal, pelvic, or anal fins. The dorsal fin is elongated, running along the back of the fish towards the blunt, finless tail, and is the main source of propulsion. It grows up to 1.6 m (5.2 ft) in length and 19 kg (42 lb) in weight.[3] • G. niloticus is nocturnal and has a poor vision. Instead, it navigates and hunts smaller fish using a weak electric field, as demonstrated by the zoologist Hans Lissmann in 1950, when he noticed that it could swim equally well forwards or backwards, clearly relying on a sense other than vision. This opened up research into electroreception and electrogenesis in fish.[4] Like the related elephantfish, which hunts the same way, it possesses an unusually large brain, which is believed to help it interpret the electrical signals.[3] It can make its tail negatively charged with respect to its head. This produces a symmetrical electric field around its body. Nearby objects distort this field, and it can sense the distortion on its skin. • G. niloticus females lay their eggs in floating nests up to 1 m (3.3 ft) across. The adults continue to guard the young after hatching.[3] The sperm cells lack a flagellum, moving like an amoeba instead.[5] • • Daftar ikan hias yang tersedia di HOBIKU Aquarium Kroya • Algaeter • Aligator Florida • Aligator Hujeta • Aligator Spatula • Arwana Jardini • Arwana Super Red • Arwana Golden Red • Arwana Silver • Arwana Silver Albino • Balashark • Barbir • Belida Bangkok • Blackghost • Blackgold / Goldenblack • Guppy AFR • Guppy Black Moscow • Guppy Cendolan • Boines Albino • Boines Hitam • Cery Barb • Catfish Colombia • Catfish Leopard • Catfish Red Tail (RTC) • Catfish SUN Catfish • Catfish Tiger Shovelnose (TSN) • Channa Andraw • Channa Asiatika WS • Channa Asiatika RS • Channa Pulcra • Channa Red Barito • Channa Maru Borneo • Channa Stewarti • Channa Toman • Channa Yellow Sentarum • Cobalt Blue • Coridoras Albino • Cupang Halfmoon • Danio Blue Pastel • Danio Green • Danio Pink • Danio Yellow • Genghis Khan • Gurame Padang • Jewel Blue Besar • Juani Biru Besar • Kaviat Ijo uk ±sejempol • Kaviat Slayer Putih • KOKI Oranda Small • KOKI Oranda Rosetail PCW • Komet • Kura-Kura Ambon • Kura-Kura Brazil Besar • Kura-Kura Brazil Kecil • Lele Bule • Lemon • Lobster Air Tawar • Lobster Induk • Lobster Putih • Lobster Merah • Louhan SRD Grade A • Louhan SRD Grade B • Louhan SRD Grade C • Louhan SRD King Super Jenong A • Louhan SRD King Super Jenong B • Louhan SRD King Kamfa • Louhan SRD Cencu • Manfish • Manfish Putih Platinum • Marble Kuning • Mata Merah • Neon • Niasa • Ninety Nine • Oscar Albino • Oscar Albino PARIS • Oscar Hitam • Oscar Tembaga • Palmas Albino • Palmas Albino Besar • Palmas Delhezi • Palmas Endlyceri • Palmas Endlyceri • Pbass Mono • Pbass Orinoco • Pink Tail • Piranha RBP • Platy Kohaku • Platy Merah Pedang • Ramirezi Blue Elextric • Redfin Hitam Besar • Sapu Albino • Sapu Hitam • Sepat Madu Alius • Serpaeee • Silver Dollar • Silvercat • Sinodontis • Snow white • Sumatra • Sumatra Albino • Sumatra Hijau • Tetra Black / Albino • Texas • Venustus • #ikanpredator • #ikankoi • #arwana • #ikanhias • #ikanhiasmurah • #pasarikanhiasjatinegara • #pasarikanhiasparungbogor • #pasarikanhias #hargaikanhias
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