Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
Gobiidae (Gobies) > Gobionellinae
Environment / Climate / Range
Ecology
Marine; freshwater; brackish; demersal; amphidromous (Ref. 46888). Tropical; 22°C - 28°C (Ref. 13614), preferred ?
Eastern Atlantic: St. Louis (Senegal) to the Cunene River (Angola) and from the islands of the Gulf of Guinea (Ref. 5299, 57403). Also reported from the lower Kunene in Namibia (Ref. 33857).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 15.5 cm TL male/unsexed; (Ref. 57403)
Dorsal
spines
(total): 7;
Dorsal
soft rays
(total): 10-11;
Anal
spines: 1;
Anal
soft rays: 9 - 11. Diagnosis: snout 33-38% of head length; mouth with 2-3 rows of small, caniniform teeth; head length 24-31% of standard length; 2 fleshy processes on posterior of gill chamber, just inside gill opening; 0-35 cycloid predorsal scales, extending to posterior part of preoperculum; cheeks and operculum naked; body with strongly ctenoid scales, numbering 54-66 (usually 59 to 63) in longitudinal series (including usually 3-4 scales on caudal fin base), and 13-19 in rearward transverse series; 16-20 scales around caudal peduncle; 1st dorsal fin: VI; second dorsal fin: I,10 (rarely 11); anal fin: I,9-11 (usually 10), opposed to 2nd dorsal fin; pectoral fins: 14-17; caudal fin: 17 segmented rays (11 to 13 of which are branched); pelvic fins oval (Ref. 57403).
Amphidromous freshwater species (Ref. 92840). Often found in lower courses of rivers, ranging from freshwaters to brackish habitats (Ref. 57403), including brackish waters of intermittent streams during dry seasons (Ref. 5299). May also ascend rivers, far upstream (Ref. 57403). Also found in flooded fields and marginal swamps along courses of streams and rivers (Ref. 5299).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Harrison, I.J., P.J. Miller and F. Pezold, 2003. Gobiidae. p. 625-666 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57403)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries:
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref.
69278): 2.4 ±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 to moderate vulnerability (28 of 100) .
