Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; benthopelagic. Tropical; 23°C - 34°C (Ref. 36880)
North, Central and South America: northern Florida, USA southward through the Greater and Lesser Antilles to Trinidad and Tobago, and from Tamaulipas, Mexico southward to Caracas, Venezuela; central Baja California Sur and Sonora, Mexico southward to Tumbes, Peru.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm SL male/unsexed; (Ref. 30499); 24.4 cm SL (female)
Morphology | Morphometrics
Inhabits clear streams and rivers over sand and gravel, but also found in turbid waters with muddy bottoms. Prefers clear flowing, well oxygenated streams. Feeds mainly on filamentous algae (Ref. 13444).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Watson, R.E., 1996. Revision of the subgenus Awaous (Chonophorus) (Teleostei: Gobiidae). Ichthyol. Explor. Freshwat. 7(1):1-18. (Ref. 13444)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00453 - 0.01676), b=3.12 (2.96 - 3.28), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.0 ±0.00 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (27 of 100).