Classification / Names
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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.
More on authors: Jordan & Evermann.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten pelagiska. Subtropical; 24°N - 22°N, 120°E - 123°E
Asia: Taiwan. Has been introduced to Singapore (Ref. 38466).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.8 cm SL hane/ej könsbestämd; (Ref. 35975)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 3; Mjukstrålar i ryggfenan (totalt) : 7; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 13 - 14. Refers to Rasborinus macrolepis.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | 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)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00412 - 0.01842), b=3.09 (2.92 - 3.26), 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): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Assuming Fec < 10,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).