Gambia country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in the Gambia River (Ref. 28587).
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/ga.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Chao, L.N. and E. Trewavas, 1990
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Sciaenidae (Drums or croakers)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Otolithe bobo, Corvina bobo, Giant captainfish, ... more

Main reference

Chao, L.N. and E. Trewavas. 1990. (Ref. 3593)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 47.0 cm TL male/unsexed; (Ref. 5752); common length : 30.0 cm TL male/unsexed; (Ref. 3593)

Length at first maturity
L_m 19.1 range ? - ? cm

Environment

Marine; brackish; demersal; depth range 0 - 100 m (Ref. 3593), usually 50 - 100 m (Ref. 26999)

Climate / Range

Tropical, preferred 26°C (Ref. 107945); 17°N - 6°S, 17°W - 14°E (Ref. 54743)

Distribution

Eastern Atlantic: west coast of Africa, from Senegal to southern Angola (Ref. 3593, 57396).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 11; Dorsal soft rays (total): 29-34; Anal spines: 2; Anal soft rays: 6. Diagnosis: medium-sized fish, fusiform and compressed; head short; eyes rather large; snout short; mouth large and oblique, subterminal; teeth villiform, set in narrow bands in both jaws; 5 marginal pores on snout and 6 mental pores; gill rakers long and slender, longer than gill filaments at angle of first gill arch; dorsal fin long, deeply notched; 2nd anal fin spine very strong, about as long as 1st soft ray and comprised less than twice in head length; caudal fin more or less pointed; scales ctenoid on body, cycloid on breast and head; lateral line extending to hind margin of caudal fin; swim bladder carrot-shaped, its front end with a pair of appendages subdividing into a group of short anterior branches and a bundle of 5-6 slender tubes extending backwards over half the length of swim bladder (Ref. 57396). Coloration: back olivaceous brown, sides silvery with series of dark dots, belly light, yellowish during reproduction period; spinous part of dorsal fin dark, soft part lighter, with 2-3 longitudinal series of dark dots; pelvics and anal fin yellowish (Ref. 57396).

Found in coastal waters over mud bottom (Ref. 3593, 57396), very close to the shore (Ref. 57396). Also enters estuaries and coastal lagoons (Ref. 3593), where reproduction takes place (Ref. 57396). Moves farther offshore to about 100 m for spawning during rainy season from December to February; Feeds on fish and shrimps (Ref. 28587).

IUCN Red List Status (Ref. 115185)

Least Concern (LC)

Threat to humans

Harmless

Human uses

Fisheries: commercial; gamefish: yes

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.1 ±0.70 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.27-0.4;)

Vulnerability (Ref. 59153)
Low to moderate vulnerability (31 of 100)

Price category (Ref. 80766)
High

Pseudotolithus elongatus (Bowdich, 1825)