Gymnocypris przewalskii
Gymnocypris przewalskii | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Cypriniformes |
Family: | Cyprinidae |
Subfamily: | Cyprininae |
Genus: | Gymnocypris |
Species: | G. przewalskii
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Binomial name | |
Gymnocypris przewalskii (Kessler, 1876)
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Synonyms | |
Schizopygopsis przewalskii Kessler, 1876[1] |
Gymnocypris przewalskii (common name: Przewalskii's naked carp; in
Named in honor of geographer and explorer
Characteristics
![](http://upload.wikimedia.org/wikipedia/commons/thumb/7/71/Schizopygopsis_przewalskii.jpg/220px-Schizopygopsis_przewalskii.jpg)
Naked carp reach a maximum length of 48 cm (1.57 ft) and are typically 300–500 g (0.66–1.10 lb) at reproductive age.[2][5] They feed mostly on benthic zooplankton about 2 m (6.6 ft) below the surface, though they also feed on other aquatic invertebrates.[8] They have long, flat bodies and almost no scales except near the anus and shoulder girdle, which gives them their common name. They grow relatively slowly and may take 7–10 years to reach reproductive size.[4][5]
Migration
The
The other population spends its entire life in the nearby Ganzi River and is variously recognized as a separate ecotype or subspecies (G. p. ganzihonensis).[3] Although likely connected to Lake Qinghai in historical times, the low water levels have separated them, effectively isolating the naked barb in this river.[3] The two populations differ in shape and number of gill rakers.[3]
References
- ^ "Gymnocypris przewalskii — Synonyms Scale-less Carp: Names". Encyclopedia of Life. Retrieved 7 June 2015.
- ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2014). "Gymnocypris przewalskii" in FishBase. November 2014 version.
- ^ a b c d e f Zhang, Ludwig, Zhang, Tong, Li, Tang, Peng & Zhao (2015). Gymnocypris przewalskii (Cyprinidae) on the Tibetan Plateau. Scientific Reports 5, Article 9780.
- ^ S2CID 34978374.
- ^ S2CID 10372870.
- ^ S. Wang, Y. Xie, ed. (2004). China Species Red List, vol 1. Beijing: Higher Education Press. p. 163.
- ^ Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Order CYPRINIFORMES: Family CYPRINIDAE: Subfamilies ACROSSOCHEILINAE, BARBINAE, SPINIBARBINAE, SCHIZOTHORACINAE, SCHIZOPYGOPSINAE and Incertae sedis". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 10 March 2021.
- S2CID 30886346.
- ^ a b c Muir, James F. (1990). "Hatchery Development and Spawning Enhancement, Qinghai Lake". Fisheries Development in Qinghai Province. Food and Agricultural Organization of the United Nations. Retrieved 18 November 2012.