Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien rifbewoner; diepte 6 - 50 m (Ref. 48637), usually 6 - 15 m (Ref. 27115). Tropical; 22°C - 27°C (Ref. 27115); 36°N - 38°S, 53°E - 133°W
Indo-Pacific: Seychelles and Chagos Islands to the western Pacific.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm SL mannelijk / geslacht onbekend; (Ref. 48637)
Dorsale stekels (totaal) : 7; Dorsale zachte stralen (totaal) : 35 - 39; Anale stekels: 1; Anale zachte stralen: 33 - 37; Wervels: 26. Pale blue to yellowish; upper abdomen with a broad area of deeper blue; a bar, broad and blackish extending ventrally from eye onto chin; iris yellow, upper and lower edges broadly deep blue; postorbital head with irregular, iridescent markings. A single, continuous dorsal fin with spinous part lower than soft portion. Chin with fleshy protuberance narrowing to a thin low, median fold. Scales very small, fully embedded and well separated. Named as such in reference to its continuous dorsal fin.
Lives in reef habitats from shallow coastal slopes to outer reef lagoons and slopes below drop-offs to 50 meters, among rubble (Ref. 48637). Occurs in pairs and its burrow may be in coral rock or sand. Monogamous (Ref. 52884). Feeds on zooplanktons (Ref. 89972). They tend to form large, though diffuse, colonies; may be due to a propensity to aggregate or may be a result of the ecological requirements for the species (for which type of substratum, current pattern, and water depth among the most important) which restrict the areas of settlement of the postlarvae.
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Monogamous mating is observed as both obligate and social (Ref. 52884).
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 op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; Aquarium: Commercieel
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): 23.3 - 29.1, mean 28 °C (based on 2128 cells).
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref.
69278): 3.4 ±0.45 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 111 [58, 188] mg/100g; Iron = 0.815 [0.492, 1.362] mg/100g; Protein = 18.1 [17.0, 19.1] %; Omega3 = 0.0997 [, ] g/100g; Selenium = 30.1 [14.2, 63.2] μg/100g; VitaminA = 208 [72, 629] μg/100g; Zinc = 1.84 [1.23, 2.60] mg/100g (wet weight);
