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Freshwater fish of Mexico — species native to rivers, lakes, streams, and ephemeral waters within Mexican North America; Pages in category "Freshwater fish of ...
Endemic fish of Mexico (2 C, 142 P) ˜ Freshwater fish of Mexico (228 P) ...
The Baja California rainbow trout or San Pedro Martir trout or Nelson's trout (Oncorhynchus mykiss nelsoni) is a localized subspecies of the rainbow trout (Oncorhynchus mykiss), a freshwater fish in the family Salmonidae. Baja California rainbow trout is one of many species of Mexican native trout.
Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. Xiphophorus species can be divided into 3 groups based on their evolutionary relationships: platyfish (or platies), northern swordtails, and southern swordtails.
The surface and cave forms of the Mexican tetra have proven powerful subjects for scientists studying evolution. [28] When the surface-dwelling ancestors of current cave populations entered the subterranean environment, the change in ecological conditions rendered their phenotype—which included many biological functions dependent on the presence of light—subject to natural selection and ...
According to Miller and Conner (1997) there are 14 species of fish in Lake Catemaco. Two species, Micropterus salmoides Lacepède and Oreochromis aureus Steindachner have been introduced into the lake, and another two species, Vieja fenestrata Günther and Ophisternon aenigmaticum Rosen & Greenwood, are widespread throughout eastern Mexico and Central America.
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Breeders have developed a multitude of color varieties (e.g. orange, red, yellow, red/black, and black/white) which are common aquarium fish for hobbyists. The southern platyfish is commonly known simply as the platy (pl. platys or platies), from the fish's original generic name, Platypoecilus.