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Teleostei (teleosts) > Atheriniformes (Silversides) > Melanotaeniidae (Rainbowfishes, blue eyes)
Etymology: Melanotaenia: Greek, melan, -anos = black + latin, taenia = stripe (Ref. 45335); longispina: Latin name combination of 'longus' and 'spinus', in reference to the long spines on dorsal and anal fins (Ref. 103156).

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

Freshwater; benthopelagic; pH range: 7.4 - ?. Tropical; 28°C - ? (Ref. 103156)

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

Asia: Indonesia (West Papua).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.7 cm SL male/unsexed; (Ref. 103156); 7.9 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

This species is distinguished from its congeners in the Birds Head region by the following characters: D IV-VI+I, 13-14; A I, 23-26; 37-40 lateral scales; 10 transverse scales; 19-21 anterior scales; 17-18 cheek scales; 19 gillrakers on first arch; short head length, 24.1-25.2% of SL; thin interorbital width, 7.8-8.2% of SL; long predorsal length, 50.2-51.8% of SL; long pelvic fin length, 19.6-20.4% of SL; long spine length on first dorsal fin, 13.1-15.3% of SL; moderately elongate second dorsal fin spine, 12.4-15.7% of SL; elongate anal fin spine, 10.1-11.3% of SL; short dorsal fin base, 33.4-36.5% of SL; short 2nd dorsal fin base, 20.2-22.6% of SL; dorsal fin base protruding vertically behind anal origin, between 1st and 3rd anal soft ray; absence of stripes on dorsal fins margin (Ref. 103156).

Collected from the type locality, a river which flows through secondary rainforest over gravel and sandy bottom. The habitat has turbid water and no aquatic vegetation. Maximum length based on type specimen, to be replaced with a better reference (Ref. 103156).

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

Main reference Upload your references | References | Coordinator | Collaborators

Nugraha, M.F.I., Kadarusman, N. Hubert, J.C. Avarre, R.K. Hadiaty, J. Slembrouck, O. Carman, Sudarto, R. Ogistira and L. Pouyaud, 2015. Eight new species of rainbowfishes (Melanotaeniidae) from the Birds Head Region, West Papua, Indonesia. Cybium 39(2):99-130. (Ref. 103156)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Critically Endangered (CR) (B2ab(v)); Date assessed: 04 December 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), 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 longispina Kadarusman, Avarre & Pouyaud, 2015