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Viviparous fish are fish that give birth to live young, the eggs develop whilst receiving nutrition from the parent. See also:Category:Ovoviviparous fish - fish which give birth to live young which do not receive nourishment from the parent whilst in the womb.
The viviparous eelpout (Zoarces viviparus), also known as the, viviparous blenny and European eelpout is species of marine ray-finned fish belonging to the family Zoarcidae, the eelpouts. It is notable for being ovoviviparous and gives birth to live larvae (hence the description "mother of eels ").
The Bythitidae are also viviparous although one species, Dinematichthys ilucoeteoides, is reported to be ovoviviparous. [8] Aquarists commonly refer to ovoviviparous and viviparous fish as "livebearers". Examples include guppies, mollies, moonfish, platys, four-eyed fish and swordtails. All of these varieties exhibit signs of their pregnancy ...
As with all viviparous fish, be on the lookout for live young, and keep a good gender balance to prevent aggression (Complete Koi advises keeping platies in groups of 3-6 with a 1:3 male-female ...
Other examples include some species of scorpions [5] and cockroaches, [6] [7] certain genera of sharks and snakes, and some species of velvet worms. Ovoviviparity, a less developed form of viviparity, occurs in most vipers, and in most live-bearing bony fishes (Poeciliidae). However, the term is poorly and inconsistently defined, and may be ...
Zenarchopteridae, the viviparous halfbeaks, is a family of ray-finned fishes in the order Beloniformes.The Zenarchopteridae exhibit strong sexual dimorphism, practicing internal fertilisation, and in some cases ovoviviparous or viviparous (the family also includes oviparous species).
Because the newborn fish are large compared to the fry of oviparous fish, which are those that lay eggs, newborn fish of livebearers are easier to feed than the fry of egg-laying species, such as characins and cichlids. This makes them much easier to raise, and for this reason, aquarists often recommend them for beginning fish breeder hobbyists.
Ovoviviparous fish give birth to live young. Unlike viviparous species, their embryos are nourished by an egg yolk, and not directly by the parent.. See also:Category:Viviparous fish - fish which give birth to live young which receive nourishment whilst in the womb.