Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bottenlevande; djupintervall 22 - 42 m (Ref. 528). Tropical; 5°S - 15°S
Eastern Central Pacific: Marquesas Islands.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 10.3 cm SL hane/ej könsbestämd; (Ref. 528)
Taggstrålar i ryggfenan (totalt) : 7; Mjukstrålar i ryggfenan (totalt) : 26 - 28; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 23 - 25; Ryggkotor: 26. Body pale bluish gray; a broad blackish bar from orbit across corner of mouth onto chin, including median barbel; iris yellow, upper and lower edges, deep blue; opercle with blue markings; an orange-red curved spot at pectoral fin base; pelvic fins yellowish white with pale blue distal margin. Prolonged 2nd spine of 1st dorsal fin in sub adults and adults. Median barbel followed by 3 - 4 very small ones. Species named melanopogon in reference to black barbel on chin
Body shape (shape guide): elongated; Cross section: compressed.
Occurs over sand or sand and rubble bottoms. Burrows occasionally. Feeds on zooplanktons (Ref. 89972).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Randall, J.E. and D.F. Hoese, 1985. Revision of the Indo-Pacific dartfishes, genus Ptereleotris (Perciformes: Gobioidei). Indo-Pac. Fish. (7):36 p. (Ref. 528)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Harmless
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Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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