Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Pseudogobius: Greek, pseudes = false + Latin, gobius = gudgeon (Ref. 45335); avicennia: Named after the genus Avicennia, reflecting the species' association with this mangrove.
More on author: Herre.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic; depth range 0 - 2 m (Ref. 126575). Tropical
Western Pacific: Thailand, Malaysia, Singapore, Brunei and Indonesia (west of the Lydekker’s Line).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.6 cm SL male/unsexed; (Ref. 126575)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 7; Anal spines: 1; Anal soft rays: 7. This moderate-sized species is distinguished by the following characters: D2 I,7; A I,7; pectoral rays 14-17; segmented caudal rays 6 in 9/7 pattern; lateral scales 25-28; transverse scale count 6-8½; predorsal scales 8-10; opercle has 2-4 rows of cycloid scales, no scales on cheek; shoulder girdle is smooth; tongue is short and mostly fused to floor of mouth; in both sexes teeth are similar although males have 2-3 curved symphyseal canines behind anterior tooth rows, the upper jaw teeth in two rows, teeth in outer row pointed, bluntly rounded to flattened, small, closely spaced, evenly sized, ofthe no teeth from side of jaw; a sexually dimorphic species, with adult males possessing inflated cheeks and nape, have more prominent eyes, a strongly curved suborbital, larger jaws and relatively plain dark body colour. Colouration: body yellowish brown with five dark brown blotches along side and distinctive yellow-edged black spot on upper part of the caudal fin in both sexes (Ref. 126575).
Facultative air-breathing in the genus (Ref. 126274); Occurs in mangroves and lower estuaries of rivers and streams and is nearly always associated with mangroves (associated with the mangrove Avicennia) (Ref. 126575).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Larson, H.K. and M.P. Hammer, 2021. A revision of the gobiid fish genus Pseudogobius (Teleostei, Gobiidae, Tridentigerinae), with description of seven new species from Australia and South-east Asia. Zootaxa 4961(1):1-85. (Ref. 126575)
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 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00353 - 0.02836), b=3.08 (2.84 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 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).
