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A killifish is any of various oviparous (egg-laying) cyprinodontiform fish, [1] including families Aplocheilidae, Cyprinodontidae, Fundulidae, Nothobranchiidae, Profundulidae, Aphaniidae and Valenciidae. All together, there are 1,270 species of killifish, the biggest family being Rivulidae, containing more than 320 species. [2]
The mangrove rivulus or mangrove killifish, Kryptolebias marmoratus (syn. Rivulus marmoratus), [2] [3] is a species of killifish in the family Rivulidae.It lives in brackish and marine waters (less frequently in fresh water) along the coasts of Florida, through the Antilles, and along the eastern and northern Atlantic coasts of Mexico, Central America and South America (south to Brazil).
The two species may overlap in their choice of habitat, but in general the banded killifish is more commonly found in freshwater, which is not the case for the mummichog. The banded killifish tends to have thin dark bars on a light side, whereas in the mummichog the bars are thin and light on a dark side.
Gulf killifish use different ways to cope with low oxygen conditions, including behavioral changes, physiological changes, and changes to biochemical processes. [21] One main threat because it decreases the levels of dissolved oxygen is the Louisiana dead zone, which kills large numbers of fish every year. [ 22 ]
The banded killifish (Fundulus diaphanus) is a North American species of temperate freshwater killifish belonging to the genus Fundulus of the family Fundulidae.Its natural geographic range extends from Newfoundland to South Carolina, and west to Minnesota, including the Great Lakes drainages. [3]
[3] [6] The two Cuban species are close relatives, [4] but the position of the Hispaniolan R. roloffi has not been confirmed and its placement in this genus is preliminary. [ 1 ] [ 5 ] Because of the disputed validity of the split into several genera, there is a level of confusion about the species included in Rivulus , despite it being clearly ...
However, a few larger species exist, with the giant killifish (F. grandissimus) and the northern studfish (F. catenatus) growing to twice the genus' average size. Many of the 40-odd species are commonly known by the highly ambiguous name " killifish " (the general term for egg-laying toothcarps), or the somewhat less ambiguous " topminnow " (a ...
Aplocheilus is a genus of killifish in the family Aplocheilidae. Their native range is in South and Southeast Asia, from India to Vietnam and Malaysia, and from Nepal to Sri Lanka. Several species, especially the striped panchax, A. lineatus, are important aquarium fishes.
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