Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Trimma: Greek, trimma, -atos = something crushed (Ref. 45335); imaii: Named for Mr. Keisuke Imai.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 50 - 70 m (Ref. 90102), usually - m (Ref. ). Temperate; 0°C -
Western Pacific: Japan and Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.8 cm SL (female)
Morphology | Morphometrics
soft rays: 8;
Vertebrae: 26. This specie sis distinguished by the following characters: 7 predorsal scales; 9 second dorsal-fin rays; 16 pectoral fin rays, all unbranched; first dorsal fin with second spine elongate and filamentous; fifth pelvic-fin ray unbranched; height of basal membrane between innermost pelvic-fin rays about 20% of length of fifth ray; interorbital or postorbital trough absent; no scales on opercle; head and body dull yellow; fresh and color in life of snout, interorbit, and upper and lower parts of eye dark violet (Ref. 81089).
Occurs in outer reef slopes in 50-70 m (Ref. 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Suzuki, T. and H. Senou, 2009. Two new species of the genus Trumma (Perciformes: Gobiidae) from Japan and Palau. Bulletin of the Kanagawa prefectural Museum (Natural Science)38:107-112. (Ref. 81089)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 15.4 - 28.3, mean 26.5 °C (based on 9 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00475 - 0.02204), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .