Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobionellinae
Environment / Climate / Range
Freshwater; brackish; benthopelagic; pH range: 6.0 - 8.0; dH range: 9 - 19. Tropical; 25°C - 27°C (Ref. 30491)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 26240); 7.6 cm SL (female)
South America: Río Atrato, Colombia, to Belém, Brazil near the mouth of the Amazon River, all Atlantic slope drainages.
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. 96402)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00185 - 0.01127), b=3.05 (2.84 - 3.26), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.5 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (24 of 100) .