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In ray finned fish they are called gonopodiums or andropodiums, and in cartilaginous fish they are called claspers. Gonopodia are found on the males of some species in the Anablepidae and Poeciliidae families. They are anal fins that have been modified to function as movable intromittent organs and are used to impregnate females with milt ...
Mora moro, the common mora, is a deep-sea fish, the only species in the genus Mora. It is found worldwide in temperate seas, at depths of between 300 and 2,500 m. It is found worldwide in temperate seas, at depths of between 300 and 2,500 m.
The term gonochorism is most often used for animal species, an estimated 95% of which are gonochoric. [17] It is very common in vertebrate species, 99% of which are gonochoric. [18] [19] Ninety-eight percent of fishes are gonochoric. [20] Mammals (including humans [21] [22]) and birds are solely gonochoric. [23] and Tardigrades are almost ...
Protogyny is the most common form of hermaphroditism in fish in nature. [30] About 75% of the 500 known sequentially hermaphroditic fish species are protogynous and often have polygynous mating systems. [31] [32] In these systems, large males use aggressive territorial defense to dominate female mating.
Common names of fish can refer to a single species; to an entire group of species, such as a genus or family; or to multiple unrelated species or groups. Ambiguous common names are accompanied by their possible meanings. Scientific names for individual species and higher taxa are included in parentheses.
Young fisherman with dolphinfish from Santorini, Greece, c. 1600 BCE (Minoan civilization). The mahi-mahi (/ ˌ m ɑː h i ˈ m ɑː h i / MAH-hee-MAH-hee) [3] or common dolphinfish [2] (Coryphaena hippurus) is a surface-dwelling ray-finned fish found in off-shore temperate, tropical, and subtropical waters worldwide.
Sexual dimorphism also occurs in hermaphroditic fish. These species are known as sequential hermaphrodites. In fish, reproductive histories often include the sex-change from female to male where there is a strong connection between growth, the sex of an individual, and the mating system within which it operates. [55]
Hermaphrodite species include the common earthworm and certain species of snails. A few species of fish, reptiles, and insects reproduce by parthenogenesis and are female altogether. There are some reptiles, such as the boa constrictor and Komodo dragon that can reproduce both sexually and asexually, depending on whether a mate is available.