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Black ghost knife fish are weakly electric fish. They will eat smaller fish in the tank and are intolerant of conspecifics. As with other scaleless fish, they are vulnerable to parasite infestations such as ich (Ichthyophthirius multifiliis). They can reproduce in captivity, although there are only a few reports of Black Ghost Knifefish ...
Despite the name, the electric eel is a type of knifefish. The Gymnotiformes / dʒ ɪ m ˈ n ɒ t ɪ f ɔːr m iː z / are an order of teleost bony fishes commonly known as Neotropical knifefish or South American knifefish.
The ghost knifefishes are a family, Apteronotidae, of ray-finned fishes in the order Gymnotiformes. These fish are native to Panama and South America . [ 1 ] They inhabit a wide range of freshwater habitats, but more than half the species in the family are found deep in rivers (typically deeper than 5 m or 16 ft) where there is little or no light.
They are typically slow to moderate swimmers, and some examples include rays, bowfin, and knife fishes. The black ghost knife fish is a Gymnotiform swimmer that has a very long ventral ribbon fin. Thrust is produced by passing waves down the ribbon fin while the body remains rigid. This also allows the ghost knife fish to swim in reverse.
A 'Ghost Fish' Has Been Spotted Alive For First Time. The NOAA Office of Ocean Exploration and Research recently shared footage documenting what is believed to be the first known sighting of a ...
A degenerative process called follicular atresia reabsorbs vitellogenic oocytes not spawned. This process can also occur, but less frequently, in oocytes in other development stages. [1] Some fish are hermaphrodites, having both testes and ovaries either at different phases in their life cycle or, as in hamlets, have them simultaneously.
Cambodian fishermen caught two fish in the Mekong River, measuring between 11 and 13 pounds and two to three feet long. This time researchers were able to purchase and examine the fish for themselves.
The African knifefish, Gymnarchus niloticus – also called the aba aba [a] – is an electric fish, living at the bottoms of rivers and lakes.It is the only species in the genus Gymnarchus and the family Gymnarchidae, within the order Osteoglossiformes.