Nigeria country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Present in the lower Ogun, lower Niger, Niger delta, Kwa Ibo (Ref. 57413) and Cross (Ref. 57413, 81660).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ni.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Harrison, I.J., P.J. Miller and F. Pezold, 2003
National Database:

Common names from other countries

Afrikansk sovekutling, Noco, Raitatorkkuja, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Butidae (Gudgeon gobies)
Etymology: Bostrychus: Greek, bostrykos = cure of lack of hair (Ref. 45335).
More on author: Steindachner.

Environment: milieu / climate zone / depth range / distribution range Ekologi

marina; sötvatten; brackvatten bottenlevande; amfidrom (Ref. 46888). Tropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Eastern Atlantic: Senegal to Angola (Ref. 57413, 81660), including the islands of Guinea (Ref. 10812).

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 21.0 cm TL hane/ej könsbestämd; (Ref. 57413)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 7; Mjukstrålar i ryggfenan (totalt) : 9; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 8. Diagnosis: 42-58 predorsal scales (Ref. 57413, 81660), extending to interorbital space (Ref. 57413). Cheek and opercle scaled (Ref. 81660). Small scales on operculum and preoperculum; 76-86 (perhaps up to 94) scales in longitudinal series (including 4 or more scales on caudal fin); 31-40 scales in rearward transverse series; 1st dorsal fin: VI; 2nd dorsal fin: I,9; anal fin: I,8; pectoral fins: 16 (Ref. 57413, 81660). Caudal fin rounded with 17 segmented rays, 15 of which are branched (Ref. 57413). Coloration: Preserved specimens: dark brown or black, lighter ventrally (Ref. 57413, 81660). Several dark, vertical bars present along midline of flanks, last at base of caudal fin (Ref. 57413). Fins dark; a distinct dark spot on dorsal margin of caudal fin near its base; ventral margins of anal and caudal fins white; pelvics with white lateral margins (Ref. 57413, 81660).

Found in estuaries and other brackish-water environments; occasionally entering freshwater (Ref. 57413, 81660). Food items include small crabs (Ref. 10812).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Miller, P.J. and P. Wongrat, 1990. Eleotridae. p. 952-957. In J. C. Quéro, J. C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 10812)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 20 July 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: saknar intresse

FAO(Publication : search) | FishSource |

Ytterligare information

Trophic ecology
Födoslag
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Ecology
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Estimates based on models

Preferred temperature (Ref. 115969): 23.4 - 27.9, mean 26.5 (based on 64 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00646 (0.00309 - 0.01347), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisk nivå (Ref. 69278): 4.0 ±0.7 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (16 of 100).

Bostrychus africanus (Steindachner, 1879)