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Cypriniformes (Carps) >
Xenocyprididae (East Asian minnows)
Eponymy: Dr Charles William Metz (1889–1975) was an American zoologist, geneticist and taxonomist whose doctorate was awarded by Stanford University. He co-wrote: A catalog of the fishes known from the waters of Korea (1913). (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Subtropical
Asia: Yunnan, China and Taiwan (Ref. 45563); also observed from Viet Nam (Ref. 44416).
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 7.3 cm SL hane/ej könsbestämd; (Ref. 33784)
Head small, pointed and slender; snout short and protruded; mouth slit slanted; large eyes at the center of head, towards tip, interorbital space convex. Long, rhombic body; back behind head convex. Belly scutes from base of pelvic fin to anus. Body gray on back, silvery white on lower sides and belly, a horizontal gray stripe along the central axis; gray on caudal fin and semi-transparent on others (Ref. 45563).
Adults inhabit clear still or slow-moving waters of small rivers (Ref. 45563).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Gan, X., J.-H. Lan and E. Zhang, 2009. Metzia longinasus, a new cyprinid species (Teleostei: Cypriniformes) from the Pearl River drainage in Guangxi Province, South China. Ichthyol. Res. 56:55-61. (Ref. 80361)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Harmless
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00298 - 0.01335), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.4 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 (10 of 100).
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