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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Mugilogobius: Latin, mugil, -ilis = grey mullet + Latin, gobius = gidgeon (Ref. 45335); rivulus: Named for its habitats ('rivulus' = rill or small brook).
More on author: Larson.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic. Tropical
Oceania: known only from Northern Territory, Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm SL male/unsexed; (Ref. 43716)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 7 - 8; Anal spines: 1; Anal soft rays: 7 - 9; Vertebrae: 26. Body with distinct dark oblique shoulder bar, scale margins rimmed with narrow dark line forming reticulate pattern usually overlaid by narrow dark bars and dorsal saddles; 2 dark spot at caudal base (Ref. 43716). Longitudinal scales 29-33; TRB 9-12; predorsal scales 12-19, small, reaching to above preopercular margin; scales on body mostly ctenoid; first dorsal spine white and always longest, often filamentous (Ref. 43716). Caudal fin rounded to oval (Ref. 43716).
Facultative air-breathing in the genus (Ref. 126274); Inhabits shallow, relatively still, brackish to freshwater creek habitats (Ref. 43716).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Larson, H.K., 2001. A revision of the gobiid fish genus Mugilogobius (Teleostei: Gobioidei), and its systematic placement. Rec. West. Aust. Mus. (Suppl. No. 62):1-233. (Ref. 43716)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00444 - 0.02153), b=3.04 (2.85 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±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).