Zoogoneticus tequila

Source: Wikipedia, the free encyclopedia.

Tequila splitfin
male above, female below
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Goodeidae
Genus: Zoogoneticus
Species:
Z. tequila
Binomial name
Zoogoneticus tequila
Webb & Miller, 1998[2]

Zoogoneticus tequila, Tequila splitfin or simply Tequila fish, is a species of goodeid fish (family

type locality.[2]

Distribution and conservation

Zoogoneticus tequila is

extinct in the wild.[1] Introduced fish species have been implicated in the disappearance of Zoogoneticus tequila from its type locality.[1][6] Habitat deterioration may also have contributed. Pollution and water extraction are threats to the pool where the wild population persists. Captive populations are maintained by aquarists.[1]

Description

Along with other Mexican goodeids, Zoogoneticus tequila are

standard length up to 4.1 cm (1.6 in) in males and up to 5.8 cm (2.3 in) in females.[2] Total length can reach 7 cm (2.8 in) in females.[3] The sexes can also be distinguished by colouration.[2] Adult males have cream-colored terminal bands on the anal and dorsal fin.[8] The caudal fin of adult males has crescent-shaped band of red-orange, orange, or yellow. The rest of the caudal fin is not pigmented and is transparent. Some large adult females share this caudal coloration but generally their caudal fins are transparent. Both sexes display olive shaded, mottled bodies with males typically darker than the families. Juveniles are lighter colored with more obvious mottling.[8]

Diet

These fish typically eat various types of zooplankton and insect larvae in the water such as those of chironomids.[9] There have also been recorded instances of cannibalism of the immature young.[10]

Predation

Typical predators endemic in the geographic range are Esox sp. and Thamnophis sp.[10] There are also many introduced species in the area that likely prey on or outcompeted Z. tequila such as Xiphophorus maculatus, Tilapia aurea, Lepomis macrochirus, Cyprinus carpio, X. helleri and Poecilia reticulata.[2]

Conservation status

After a few successful reintroductions of Z. tequila in the wild became established, the International Union for Conservation of Nature gave the species the status of endangered. However, it is still considered by many to be extinct in the wild.[11] DNA analysis of natural populations of Z. tequila have shown that because the populations are extremely small there is a large amount of inbreeding which could be contributing to the precipitous decline in populations in the wild.[12]

References

  1. ^
    doi:10.2305/IUCN.UK.2019-2.RLTS.T169395A1276460.en
    . Retrieved 19 November 2021.
  2. ^ a b c d e f Webb, S. A.; Miller, R. R. (1998). "Zoogoneticus tequila, a new goodeid fish (Cyprinodontiformes) from the Ameca drainage of Mexico, and a rediagnosis of the genus" (PDF). Occasional Papers of the Museum of Zoology, University of Michigan. 725: 1–23.
  3. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2016). "Zoogoneticus tequila" in FishBase. January 2016 version.
  4. ^ Eschmeyer, W. N.; Fricke, R.; van der Laan, R., eds. (2 May 2016). "Catalog of Fishes". California Academy of Sciences. Retrieved 5 May 2016.
  5. ^ "Zoogoneticus tequila". Integrated Taxonomic Information System.
  6. ^
    S2CID 40034156
    .
  7. S2CID 22965812
    .
  8. ^
    OCLC 246180758
    .
  9. doi:10.1127/fal/2016/0932
    .
  10. ^
    OCLC 860213559
    .
  11. PMID 31736620
    .
  12. S2CID 654901
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Zoogoneticus_tequila&oldid=1180309172"