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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); nigrimas: Latin, niger = black + Latin, mas = male. An allusion to the dark nuptial coloration of males (Ref. 26747).
More on author: Kottelat.

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

; acqua dolce benthopelagico; pH range: 7.5 - 8.5; dH range: ? - 18; non migratori. Tropical; 22°C - 25°C (Ref. 31267); 1°S - 3°S, 120°W - 121°W (Ref. 26747)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Asia: Endemic to Lake Poso, Sulawesi, Indonesia.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.7 cm SL maschio/sesso non determinato; (Ref. 26747)

Short description Morfologia | Morfometria

Raggi dorsali molli (totale): 8-11; Raggi anali molli: 21 - 25. Distinguished from all other species of Oryzias by the unique black nuptial coloration of the adults males. Differs further by having slightly emarginate caudal fin (shared only with O. matanensis which has 40-47 scales in lateral row and O. orthognathus which has 45-54 scales in lateral row), 34-37 scales in lateral row, 8-11 dorsal rays and 21-25 anal rays (Ref. 26747).

Non-annual breeder. Is difficult to maintain in aquarium (Ref. 27139).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore : Seegers, Lothar | Collaboratori

Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993. Freshwater fishes of Western Indonesia and Sulawesi. Periplus Editions, Hong Kong. 221 p. (Ref. 7050)

IUCN Red List Status (Ref. 130435)

Near Threatened (NT) (B1b(iii)); Date assessed: 16 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Acquario: Commerciale

FAO - Publication: search | FishSource |

Informazioni ulteriori

Stati
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Ecosystems
Presenze
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Ecologia
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Prede
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Nomi Comuni
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Metabolismo
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Ecotossicologia
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Maturità
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Spawning aggregation
Fecundity
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Egg development

Age/Size
Accrescimento
Length-weight
Length-length
Length-frequencies
Morfometria
Morfologia
Larve
Dinamica popolazioni larvali
Reclutamento
Abbondanza
BRUVS

Bibliografia
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Varietà
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Electrophoreses
Ereditarietà
Malattie
Elaborazione
Nutrients
Mass conversion

Collaboratori
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Stamps, Coins Misc.
Suoni
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Velocità
Modalità di nuoto
Area branchiale
Otoliths
Cervelli
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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): 3.5 ±0.5 se; based on size and trophs of closest relatives

Resilienza (Ref. 120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming fec < 100).

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

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Oryzias nigrimas Kottelat, 1990