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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).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique; pH range: 7.4 - ?. Tropical; 28°C - ? (Ref. 103156)
Asia: Indonesia (West Papua).
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 8.7 cm SL mâle / non sexé; (Ref. 103156); 7.9 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
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).
Cross section: compressed.
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).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: d'intérêt potentiel; Aquarium: potentiel
Outils
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [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).
Niveau trophique (Réf.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Résilience (Réf.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (10 of 100).
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