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
Maturity | Reproduction | Spawning | Eggs | Fecundity | 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: Version 2025-2)
Threat to humans
Harmless
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