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Oryzias pectoralis Roberts, 1998

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Oryzias pectoralis
Picture by Vidthayanon, C.

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> Beloniformes (Needle fishes) > Adrianichthyidae (Ricefishes) > Oryziinae
Etymology: Oryzias: Greek, oryza = rice; because of the habitat used by this fish (Ref. 45335).
More on author: Roberts.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water benthopelagisch. Tropical

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Asia: Laos and Viet Nam.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 2.2 cm SL mannelijk / geslacht onbekend; (Ref. 27658)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale zachte stralen (totaal) : 6 - 7; Anale zachte stralen: 19 - 20; Wervels: 30. Principal caudal fin rays 5/6 (Ref. 27658); upper half of pectoral fin base with black spot; relatively slender body (Ref. 43281).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found in rice paddies (Ref. 27658), swamps and sheltered areas of slow flowing rivers (Ref. 43281).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Egg clusters are deposited among the vegetation.

Hoofdreferentie Upload your references | Referenties | Coördinator : Seegers, Lothar | Medewerkers

Roberts, T.R., 1998. Systematic observations on tropical Asian medakas or ricefishes of the genus Oryzias, with descriptions of four new species. Ichthyol. Res. 45(3):213-224. (Ref. 27658)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Onvoldoende gegevens (DD) ; Date assessed: 21 February 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

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Internetbronnen

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00190 - 0.01207), b=3.13 (2.91 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming fec < 100).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).