Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobiinae
Etymology: Trimma: Greek, trimma, -atos = something crushed (Ref. 45335). More on author: Cohen.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated, usually 10 - 40 m (Ref. 27115). Tropical; 22°C - 26°C (Ref. 27115); 33°N - 18°S
Western Pacific: Ryukyu and Izu islands to New Britain (Papua New Guinea) and Rowley Shoals, Western Australia. Recently reported from Tonga (Ref. 53797).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm TL male/unsexed; (Ref. 9710)
soft rays: 8 - 9. Characterized by golden brown body color; white on lower head and ventral body; presence of lavender or bluish lateral stripe from upper eye to middle of caudal peduncle; caudal fin base with large dark blotch; elongate and filamentous second dorsal spine; all pectoral rays unbranched; fifth pelvic ray unbranched; longitudinal scale series 25-26; predorsal scales about 12; cheek and opercle without scales; depth of body about 4.0-4.4 in SL (Ref. 90102).
Inhabits coastal to outer reefs, typically in small groups in caves (Ref. 48637). Forms loose aggregations associated with shallow pockets and caves of steep drop-offs. Hovers in a head-up position (often vertical, posture in the water column) and feeds on copepods (Ref. 1602, 58123).
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. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 26.2 - 28.9, mean 27.9 (based on 464 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00418 - 0.01902), b=3.07 (2.89 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.00 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .