Gambia country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
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 sénégalais, Corvina casava, Ladyfish, ... more

Main reference

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

Size / Weight / Age

Max length : 114 cm TL male/unsexed; (Ref. 40637); common length : 50.0 cm TL male/unsexed; (Ref. 3593); max. published weight: 12.0 kg (Ref. 40637)

Length at first maturity
L_m 35.0, range 28 - ? cm

Environment

Marine; demersal; depth range 0 - 70 m (Ref. 3593)

Climate / Range

Tropical, preferred 26°C (Ref. 107945); 27°N - 22°S

Distribution

Eastern Atlantic: west coast of Africa, from Morocco to Angola, but rare north of Senegal (Ref. 57396). Also reported from Namibia (Ref. 3593).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 11; Dorsal soft rays (total): 28-33; Anal spines: 2; Anal soft rays: 7. Diagnosis: large fish, elongate and compressed; eyes small; snout short; mouth large and oblique; lower jaw prominent; both jaws with bands of villiform teeth (upper jaw with teeth in outer row larger and sharper, including a pair of large median canines, lower jaw with teeth in inner row larger and sharper); 6 pores on chin and 5 marginal pores on snout; gill rakers long and slender, longer than gill filaments at angle of 1st gill arch; dorsal fin long and deeply notched; second anal fin spine rather short and slender, attaining about 2/3 of the length of 1st soft ray and comprised over 3 times in head length; caudal fin pointed; scales weakly ctenoid on body, cycloid on snout and suborbital region; lateral line extending to end of caudal fin; swim bladder carrot-shaped, its front end with a pair of appendices subdividing into an anterior group of short branches and 2 posterior groups of long, slender tubules, one of them ventral, the other dorso-lateral and longer, bordering the bladder throughout its length (Ref. 57396). Coloration: silvery grey, with series of small dark spots following scale rows, oblique on anterior part of back and sides, horizontal posteriorly; black spot at tip of spinous part of dorsal fin; pelvics and anal fin more or less dark yellowish; caudal fin dark; inside of gill cover black (Ref. 57396).

Found in coastal waters over muddy, sandy or rocky bottoms. Smaller individuals found in shallow waters, but rarely entering estuaries. Feed on fish, shrimps and crabs (Ref. 28587). Spawn from November to March in waters of 22 to 25°C in the Gulf of Guinea. Most economically important demersal fish in West African waters.

IUCN Red List Status (Ref. 115185)

Endangered (EN) (A2bd)

Threat to humans

Harmless

Human uses

Fisheries: minor 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)
3.8 ±0.71 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.33; tmax=8; assuming tm=2)

Vulnerability (Ref. 59153)
Moderate vulnerability (42 of 100)

Price category (Ref. 80766)
High

Pseudotolithus senegalensis (Valenciennes, 1833)