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Teleostei (teleosts) > 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 Ecology

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Laos and Viet Nam.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.2 cm SL male/unsexed; (Ref. 27658)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 6 - 7; Anal soft rays: 19 - 20; Vertebrae: 30. Principal caudal fin rays 5/6 (Ref. 27658); upper half of pectoral fin base with black spot; relatively slender body (Ref. 43281).

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

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Egg clusters are deposited among the vegetation.

Main reference Upload your references | References | Coordinator : Seegers, Lothar | Collaborators

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)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 21 February 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (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).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Assuming fec < 100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Oryzias pectoralis Roberts, 1998