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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Tryssogobius: Greek, tryo, tryso = to wear away + see under Gobius; quinquespinus: Name from Latin ‘quinque’ for five and ‘spina’ for spine, refers to its having 5 spines in the first dorsal fin, a rare count for gobiid fishes.
More on author: Randall.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 25 - 35 m (Ref. 90102). Tropical
Western Pacific: Papua New Guinea.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.1 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 6; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 11; Vertebrae: 26. This species is distinguished by the following characters: D V + I, 9; A I, 11; pectoral rays 17-18; diameter of eye 2.75-2.95 in HL; interorbital width 5.15-5.55 in HL; first 3 dorsal spines subequal, the longest 4.2-4.9 in SL: 3 filamentous lobes in caudal fin, the longest 2.3-2.5 in SL; short pectoral fins, 3.9-4.15 in SL; colour when fresh lavender-grey with a midlateral yellow stripe from behind eye to middle of caudal fin; ventro-posterior edge of eye with an iridescent blue rectangular mark, bordered below by a dusky-edged, yellow semicircular mark; submarginal yellow and blue bands in second dorsal and anal fins and upper and lower lobes of caudal fin (Ref. 75950).
Inhabits sheltered, silty reefs in 25-35 m (Ref. 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E., 2006. Three new species of the gobiid fish genus Tryssogobius from the western and South Pacific. Aqua, 11(3):105-116. (Ref. 75950)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.01 (2.83 - 3.19), 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.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
