Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic; pH range: 6.0 - 8.0; dH range: 9 - 19. Tropical; 25°C - 27°C (Ref. 30491)
South America: Río Atrato, Colombia, to Belém, Brazil near the mouth of the Amazon River, all Atlantic slope drainages.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 26240); 7.6 cm SL (female)
Observed from estuaries and river deltas over sand and mud bottoms. Feeds by filtering the substrate or by selectively catching prey. Collected in large numbers during reproduction in shallow flowing water (Ref. 26240).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Watson, R.E. and H. Horsthemke, 1995. Revision of Euctenogobius, a monotypic subgenus of Awaous, with discussion of its natural history (Teleostei: Gobiidae). Rev. Fr. Aquariol. 22(3-4):83-92. (Ref. 26240)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Internet sources
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=0.00891 (0.00370 - 0.02149), b=3.06 (2.89 - 3.23), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.5 ±0.1 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).
