Papua New Guinea country information

Common names: Oktedi rainbowfish
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known only from the Ok Tedi River and its tributaries, in the Upper Fly River system. Mostly collected from creeks near Tabubil approximately 900-950 km upstream from the sea in mountainous terrain from 300-500 m elevation. Utilized as an aquarium fish (Ref. 6398). Also Ref. 6993, 13533.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pp.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/PNG/png.htm
Occurrences: Occurrences Point map
Main Ref: Allen, G.R., 1991
National Database:

Common names from other countries

Oktedi-Regenbogenfisch, Viirusateenkaarikala, 奥梯虹银汉鱼, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Atheriniformes (Silversides) > Melanotaeniidae (Rainbowfishes, blue eyes)
Etymology: Melanotaenia: Greek, melan, -anos = black + latin, taenia = stripe (Ref. 45335).

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

Freshwater; benthopelagic; pH range: 6.5 - 7.5. Tropical; 23°C - 26°C (Ref. 12468); 7°S - 8°S

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

Oceania: known only from the Ok Tedi River and its tributaries, in the Upper Fly River system of southern Papua New Guinea.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. 2847)

Short description Morphology | Morphometrics

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 18-19; Anal spines: 1; Anal soft rays: 24 - 26

Inhabits mountain streams of 300-500 m elevation 900-950 km upstream from the sea (Ref. 2847). Is an omnivorous egg layer, generally peaceful community fish which prefers the following aquarium conditions: pH=7.3, H=12, 23°C water temperature with rock, plant and driftwood cover (Ref. 6398).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Distinct pairing (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Allen, G.R., 1991. Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)

IUCN Red List Status (Ref. 130435)

Critically Endangered (CR) (B1ab(iii,v)); Date assessed: 04 December 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Aquarium: commercial

FAO(Publication : search) | FishSource |

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Internet sources

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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.9 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

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

Melanotaenia oktediensis Allen & Cross, 1980