Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 1 - 10 m (Ref. 1602). Tropical; 19°N - 24°S
Indo-Pacific: Chagos Islands, Philippines, Great Barrier Reef, Fiji, and Samoa; Mariana, eastern Caroline and Marshall Islands in Micronesia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.3 cm TL male/unsexed; (Ref. 2334)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 7 - 9; Anal spines: 1; Anal soft rays: 7 - 9. Characterized by semi-transparent head and body with white internal pigment over brain; upper surface of vertebral column white internal white stripe; ventral half of body with six faint reddish internal bars; lower half of body obscured by reddish brown to violet brown or purple streak and ending at caudal fin base; presence of brown saddles along back; all pectoral rays usually unbranched; longitudinal scale series 34-49; broad and disc-like pelvic fins, reaching to anus or beyond; opening of gill usually reaching to below rear edge of eye (Ref. 90102).
Body shape (shape guide): elongated.
Lives on certain branching coral forms of fire coral (Millepora spp.) and on other massive corals ones (e.g. like Porites cylindrica, P. lutea) in shallow lagoons at depths of 1 to 10 m.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 26.6 - 29.3, mean 28.5 °C (based on 1364 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00339 - 0.01546), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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Nutrients (Ref.
124155): Calcium = 504 [207, 1,842] mg/100g; Iron = 1.96 [0.74, 4.73] mg/100g; Protein = 17.6 [15.4, 19.6] %; Omega3 = 0.093 [0.026, 0.331] g/100g; Selenium = 35.6 [8.5, 127.2] μg/100g; VitaminA = 87.7 [14.0, 525.9] μg/100g; Zinc = 5.49 [2.71, 9.77] mg/100g (wet weight);
