Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobionellinae
Etymology: Gobionellus: Diminutive of Latin, gobius = gudgeon (Ref. 45335). More on author: Starks.
Environment: milieu / climate zone / depth range / distribution range
Brackish; demersal; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Southwest Atlantic: endemic to Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.9 cm TL male/unsexed; (Ref. 111953); max. published weight: 10.70 g (Ref. 122735)
soft rays: 14. This species is distinguished from its congeners by the following characters: terminal mouth is oblique; distinct pigmentation of 5 large blotches on sides of trunk, last four of which are vertically elongate, dark blotch on upper half of pectoral-fin base, and broad suborbital patch crossing cheek from eye to middle of upper jaw; D2 13; A 14; dorsal fins not broadly connected; body with small cycloid scales; lateral series 54-66; nape with scales along naked midline; in males, maxilla extending beyond posterior margin of orbit, in females to posterior margin; first gill arch with seven thin rakers on ceratobranchial, one at angle, and six on epibranchial; horizontal midcheek row ‘b’ not extending forward beyond 3rd or 4th transverse suborbital row (Ref. 55435).
This species is an inhabitant of estuaries and has been taken over fine sediments near mangroves.
Starks (1913) commented that it was not found in rocky tidal pools (Ref. 55435).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Pezold, F., 2004. Redescriptions and synonymies of species of the American-west African genus Gobionellus (Teleostei: Gobiidae) with a key to species. Copeia 2004(2):281-297. (Ref. 55435)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00318 - 0.01197), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.5 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.).
Vulnerability (Ref. 59153
): Low vulnerability (25 of 100) .