| 词条 | Largefin pupfish |
| 释义 |
| name = Largefin pupfish | image = | status = CR | status_system = IUCN2.3 | status_ref = [1] | taxon = Cyprinodon verecundus | authority = Humphries, 1984 }} The largefin pupfish (Cyprinodon verecundus), also known as cachorrito de dorsal larga, is a small species of fish in the family Cyprinodontidae. It is endemic to Lake Chichancanab in Quintana Roo, Mexico. In almost all places, different Cyprinodon species do not overlap in their range, but there are two notable exceptions and one of these is Lake Chichancanab, which is inhabited by C. verecundus, C. beltrani, C. esconditus, C. labiosus, C. maya, C. simus and C. suavium (the other place where several Cyprinodon species live together are lakes in San Salvador Island, the Bahamas). Living together, the Cyprinodon species in Lake Chichancanab have diverged into different niches. Pupfish typically feed on algae and detritus. In Lake Chichancanab, however, C. verecundus has become an amphipod- and bivalve-eater.[2] The IUCN last reviewed C. verecundus in 1996 where they considered it critically endangered.[1] Among the endemic Cyprinodon species in Lake Chichancanab, only C. beltrani and C. labiosus still occur in some numbers in their habitat, while the remaining are virtually—if not fully—extinct in the wild. At least some of these, including C. verecundus, survive in captivity.[2][3] The primary reason for their decline is introduced species, notably the Nile tilapia and the tetra Astyanax fasciatus.[2][4] References1. ^1 IUCN Red List of Threatened Species: Cyprinodon verecundus, Contreras-Balderas, S. & Almada-Villela, P. 1996 . accessed 29 April 2016. 2. ^1 2 {{cite journal| author1=Martin, C. | author2=P.C. Wainwright | year=2011 | title=Trophic novelty is linked to exceptional rates of morphological diversification in two adaptive radiations of Cyprinodon pupfish | journal=Evolution | volume=65 | issue=8 | pages=2197–2212 | doi=10.1111/j.1558-5646.2011.01294.x}} 3. ^{{cite journal| author1=Martin, C.H. | author2=Crawford, J.E. | author3=Turner, B.J. | author4=Simons, L.H. | year=2016 | title=Diabolical survival in Death Valley: recent pupfish colonization, gene flow and genetic assimilation in the smallest species range on earth | journal=Proc Biol Sci | volume=283 | issue=1823 | doi=10.1098/rspb.2015.2334 }} 4. ^{{cite journal| author=Strecker, U. | year=2006 | title=The impact of invasive fish on an endemic Cyprinodon species flock (Teleostei) from Laguna Chichancanab, Yucatan, Mexico | journal=Ecology of Freshwater Fish | volume=15 | issue=4 | pages=408–418 | doi=10.1111/j.1600-0633.2006.00159.x }}
8 : Cyprinodon|Endemic fauna of Mexico|Freshwater fish of Mexico|Natural history of the Yucatán Peninsula|Endangered fish|Endangered biota of Mexico|Fish described in 1984|Taxonomy articles created by Polbot |
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