Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Tryssogobius: Greek, tryo, tryso = to wear away + see under Gobius; sarah: Named for Sarah Crow; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 50 - 75 m (Ref. 90102). Subtropical
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Pacific: Indonesia, Papua New Guinea, Palau and Ryukyu Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.2 cm SL (female)
Morphology | Morphometrics
(total): 6 - 7;
soft rays: 11;
Vertebrae: 26. Characterized by pearly grey to whitish head and body; yellowish first dorsal fin except thin blue anterior margin and broad blue zone basally with yellow stripe; bluish second dorsal fin with pair of yellow strips; translucent caudal fin with blue-edged yellow band across upper and lower lobe; bluish anal fin with midlateral yellow stripe ending at acute posterior tip of fin; white pelvic fins with bluish posterior tip; dorsal rays VI+I,10; anal rays I,11; pectoral rays 17-18; cheeks with single row of scales; depth of body at level of pelvic fins 4.6-5.1 in SL; relatively narrow first dorsal fin, pointed at tip; pelvic fins reaching slightly beyond origin of anal fin, tip pointed; scales in longitudinal scale series 24-26; transverse scale rows 7-8; median predorsal scales 6, progressively larger anteriorly; body scales ctenoid to below posterior part of first dorsal fin, cycloid anteriorly; gill rakers 3-4+10-14; vertebrae 26 (Ref. 90102).
Occurs in areas exposed to relatively strong currents (Ref. 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R. and M.V. Erdmann, 2012. Reef fishes of the East Indies. Perth, Australia: Universitiy of Hawai'i Press, Volumes I-III. Tropical Reef Research. (Ref. 90102)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 26.4 - 28.6, mean 27.3 °C (based on 44 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00261 - 0.01268), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±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.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .