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Cypriniformes (Carps) >
Cyprinidae (Minnows or carps) > Cyprininae
Etymology: Sinocyclocheilus: Latin, sino, sina = from China + Greek, kyklos = circle + Greek, cheilos = lip (Ref. 45335); donglanensis: Named for its collection locality, Donglan County.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical
Asia: Subterranean tributary of the Hongshuihe River of the Xijiang River system in Guangxi, China.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 12.4 cm SL hane/ej könsbestämd; (Ref. 57607)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 7 - 10; Mjukstrålar i analfenan: 5 - 8; Ryggkotor: 37 - 38. Differs from all its congeners by the following combination of characters: body completely scaled with well developed eyes; lateral line curved possessing 57-64 scales; pectoral fin not reaching the origin of the pelvic fin and the last unbranched ray of the dorsal fin clearly serrated along its posterior edge; 8-9 predorsal vertebrae; 8-9 gill rakers; joints of dentary-angulars not close to each other at the isthmus; and a slightly inferior mouth with the upper jaw (6.2-7.4% SL) protruding slightly beyond the lower one (5.7-6.7% SL) (Ref. 57607).
Body shape (shape guide): fusiform / normal.
Inhabits subterranean river with water surface about 10-20 m inside the mouth of a small cave located about 50-100 m up from the bottom of a 4 square km lowland depression in a mountainous region (Ref. 57607). The subterranean water flows out during the flood season, making the lowland depression looks like a small lake (Ref. 57607).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Zhao, Y., K. Watanabe and C. Zhang, 2006. Sinocyclocheilus donglanensis, a new cavefish (Teleostei: Cypriniformes) from Guangxi, China. Ichthyol. Res. 53:121-128. (Ref. 57607)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01122 (0.00526 - 0.02395), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
2.9 ±0.3 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (24 of 100). 🛈 |