Classificazione / Nomi
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Cypriniformes (Carps) >
Xenocyprididae (East Asian minnows)
Etymology: parva: Named from the Latin word parva (gender feminine), meaning small or little, in reference to its small body size.
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.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Subtropical
Asia: Cheng-jiang River, a tributary of Hongshui-He River of the Pearl River basin in Guangxi Province, China.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 5.8 cm SL maschio/sesso non determinato; (Ref. 104754)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 10; Raggi anali molli: 15 - 17. Metzia parva is distinguished from all other congeners by the following characters: smaller body size, 48.3-57.7 mm SL (vs. 58.3-151.4 mm SL); lateral line complete, but interrupted in some specimens along ventral margin above anal-fin; anal fin with 12-14 branched rays (vs. 10-11 or 15-20); pectoral fin with 10 branched rays (vs. 11-16); pelvic fin with 6 branched rays (vs. 7-9); longer caudal peduncle 17.8-21.7% SL (vs. 14.8-17.4% SL); shorter preanal length 60.9-66.0% SL (vs. 69.0-73.0% SL); and interorbital width distinctly larger 28.4-33.0% HL (vs. 20.2-24.7% HL) (Ref. 104754).
Body shape (shape guide): elongated.
Females have a large number of eggs (Ref. 104754).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Luo, W., J.P. Sullivan, H.-T. Zhao and Z.-G. Peng, 2015. Metzia parva, a new cyprinid species (Teleostei: Cypriniformes) from south China. Zootaxa 3962(1):226-234. (Ref. 104754)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00851 (0.00404 - 0.01792), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |