Aphyocypris lini

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Aphyocypris lini
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Xenocyprididae
Genus: Aphyocypris
Species:
A. lini
Binomial name
Aphyocypris lini
(Weitzman & Chan, 1966)
Synonyms [1]
  • Hemigrammocypris liniWeitzman & Chan, 1966
  • Aphyocypris pooni S. Y. Lin, 1939

Aphyocypris lini, the garnet minnow or Venus minnow, is a species of freshwater ray-finned fish belonging to the family Xenocyprididae, the East Asian minnows or sharpbellies. [1] This species is endemic to China. [2] It was first collected from Hong Kong by A.W. Herre in 1936. The introduction of mosquitofish (Gambusia affinis) and habitat destruction caused the extirpation of this species from Hong Kong and the species was considered to be extinct in the wild. However, a similar species Aphyocypris pulchrilineata was discovered in Guangxi in southern China, but this species lacks the dark spot on the base of the caudal fin. [3]

Contents

The specific name of this fish honors the Chinese ichthyologist Lin Shu-Yen (1903-1974). [4]

Description

Aphyocypris lini is a small fish which has a yellowish-brown body with a bluish back and a white underside which are separated by a series of parallel stripes with the middle stripe being reddish-yellow, a bluish black stripe above and an iridescent green line below it. There is a large blue spot, edged with gold at the base of the caudal fin while the fins are white. It has pelvic scutes which run from the base of the pelvic fin to the anus. There is no lateral line but there are 30–32 scales along lateral axis. Adults grow to 50 mm total length. [5] It has three spines and seven soft rays in the dorsal fin with three spines and eight soft rayes in the anal fin. [6]

Distribution

This species is endemic to southern China and it was first recorded in Fanling in the New Territories of Hong Kong in 1939, and was found in the Tai Mo Shan area in 1992, but since then there have been no records in the wild. [5]

Habitat

Aphyocypris lini is a benthopelagic fish species which lives ditches and rivers where there is clear, shallow water with dense aquatic vegetation. Spawning occurs in open water with sandy and gravel substrates. [5]

Conservation

The decline In the wild populations of Aphyocypris lini is thought to be due to habitat destruction by human development such as the construction of hydroelectric projects, water pollution and deforestation. They were possibly also affected by competition from introduced fish species such as the mosquitofish. The only currently known population of the garnet minnow are in captive breeding facilities in Hong Kong, Macau and some other southeastern Asia countries where they are bred for export in the aquarium trade. It is possible that the species could be reintroduced to the wild using captive bred fish after habitat restoration and the removal of invasive alien competitors. [5]

Sources

  1. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Aphyocypris". Catalog of Fishes . California Academy of Sciences . Retrieved 20 January 2025.
  2. ↑ "ITIS Standard Report Page: Aphyocypris lini". www.itis.gov. Retrieved 30 September 2017.
  3. ↑ "[Ichthyology • 2013]Aphyocypris pulchrilineata • a new miniature cyprinid species (Cypriniformes: Cyprinidae) from Guangxi, China". Species New to Science. pskhun. 20 March 2013. Retrieved 11 December 2017.
  4. ↑ Christopher Scharpf (15 November 2024). "Family XENOCYPRIDIDAE Günther 1868 (Sharpbellies)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 20 January 2025.
  5. 1 2 3 4 Menghong Hu; Youji Wang; Siu Gin Cheung; et al. (2008). "Threatened fishes of the world: Aphyocypris lini Weitzman and Chan, 1966 (Cyprinidae) (abstract)". Environmental Biology of Fishes. 86: 525–526. doi:10.1007/s10641-009-9560-x. S2CID   965949.
  6. ↑ Rainer Froese; Daniel Pauly, eds. (2017). "Aphyocypris lini (Weitzman & Chan, 1966) Garnet minnow". Fishbase . Retrieved 11 December 2017.

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