Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 0 - 3 m (Ref. 107299). Tropical; 20°N - 24°S
Pacific Ocean: Ryukyu Islands, Japan; south to Timor Sea and the Great Barrier Reef; east to Oceania and Tuamotus.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.8 cm SL male/unsexed; (Ref. 1602)
soft rays: 6 - 8. This species is distinguished by the following characters: cephalic sensory-canal pore system lacking only the IT pore (pattern 2); branched pectoral-fin rays; dorsal/anal-fin formula is 9/8; the fifth pelvic-fin is ray small or rudimentary (about 10% of 4th pelvic ray); caudal fin has rows of small dark spots set close together on rays, membranes dark; presence of a small dark spot over preural centrum associated with last subcutaneous bar may be present; the scale edges are not dark (Ref. 107299).
Occurs on algal mats of shallow exposed reefs.
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. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 24.8 - 28.9, mean 27.5 (based on 364 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00300 - 0.01455), b=3.08 (2.90 - 3.26), 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. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .