Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; demersal; pH range: 7.0 - ? ; dH range: 10 - 20; amphidromous (Ref. 46888). Tropical; 22°C - 30°C (Ref. 2059); 31°N - 5°S (Ref. 26213)
South America: found only in Brazil from Piaui southward to Santa Catarina. Central America: questionable reports from Florida in USA and Antilles to Central America (Ref. 7251).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.3 cm SL male/unsexed; (Ref. 13444)
Found in lakes, ponds, rivers and streams. Occurs in brackish water in seasonally intermittent streams.
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. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Special reports
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00692 (0.00369 - 0.01296), b=3.12 (2.97 - 3.27), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
2.8 ±0.31 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 (32 of 100). 🛈 |
Nutrients (Ref. 124155) |
Calcium = 103 [46, 491] mg/100g; Iron = 0.696 [0.253, 2.276] mg/100g; Protein = 17.7 [15.3, 19.9] %; Omega3 = 0.189 [0.077, 0.397] g/100g; Selenium = 68.8 [32.3, 187.6] μg/100g; VitaminA = 26.4 [7.5, 80.1] μg/100g; Zinc = 2 [1, 3] mg/100g (wet weight); |