Galeoides decadactylus, Lesser African threadfin : fisheries

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Galeoides decadactylus (Bloch, 1795)

Lesser African threadfin
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Galeoides decadactylus   AquaMaps   Data sources: GBIF OBIS
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Image of Galeoides decadactylus (Lesser African threadfin)
Galeoides decadactylus
Afbeelding van Wirtz, P.

Guinea country information

Common names: Sanis, Sanusi
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Fatala River (Ref. 28587). Reported from the Guinea shelf (Ref. 47102).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/gv.html
National Fisheries Authority: http://www.fis-net.com/guinea
Occurrences: Occurrences Point map
Main Ref: Motomura, H., 2004
National Database:

Common names from other countries

Petit capitaine, Barbudo enano africano, Guinean threadfin, ... more

Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Carangaria/misc (Various families in series Carangaria) > Polynemidae (Threadfins)
Etymology: Galeoides: Greek, galeos = a shark + suffix oides = similar to (Ref. 45335).
More on author: Bloch.

Environment: milieu / Klimaatzone / Diepte / distribution range Ecologie

marien; brak water demersaal; diepte 10 - 70 m (Ref. 10799). Subtropical; 37°N - 27°S, 19°W - 16°E (Ref. 57343)

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

Eastern Atlantic: West African coasts, from Canary Islands and Morocco to Angola (Ref. 57402). Sporadically known from Algeria and Namibia (Ref. 57343). Record from Mauritius is likely to be erroneous.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturiteit: Lm 11.6  range ? - ? cm
Max length : 50.0 cm TL mannelijk / geslacht onbekend; (Ref. 5377); common length : 30.0 cm TL mannelijk / geslacht onbekend; (Ref. 3659)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 9; Dorsale zachte stralen (totaal) : 13 - 14. Diagnosis: 9-10 short detached pectoral filaments, not exceeding length of upper pectoral fin; body moderately elongate and compressed, its height comprised 2.9-3.4 times in standard length; snout very short, blunt and prominent; mouth inferior; posterior edge of maxillary only slightly expanded, barely reaching past eye; 2 widely separated dorsal fins, 1st with 8 spines, 2nd with 1 flexible spine and 13-14 soft rays; 2nd dorsal fin and anal fin bases barely equal; pectoral fin inserted low on body; scales ctenoid; head and unpaired fins partly covered with small scales (Ref. 57402). Coloration: body uniformly silvery, upper part greyish and belly white; a large rounded black spot, about equal to eye diameter, generally visible under lateral line, behind opercle (Ref. 57402).
Body shape (shape guide): fusiform / normal.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Occurs over sandy (Ref. 2683) and muddy bottoms in shallow waters (Ref. 4340), frequently in brackish habitats (Ref. 4340, 57402) and estuaries, but not in freshwaters (Ref. 57402). Feeds on benthic invertebrates (Ref. 5377). Sold fresh, dried salted or smoked (Ref. 36127).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Also Ref. 32209.

Hoofdreferentie Upload uw referenties | Referenties | Coördinator | Medewerkers

Daget, J. and J.C. Njock, 1986. Polynemidae. p. 352-354. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 4340)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)

  Gevoelig (NT) ; Date assessed: 15 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: commercieel
FAO - visserij: aanvoer, soortsprofiel; Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us

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Internetbronnen

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Estimates based on models

Preferred temperature (Ref. 123201): 20.1 - 27.9, mean 25.9 °C (based on 66 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00542 - 0.01337), b=3.11 (2.98 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.6   ±0.67 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.14-0.4).
Prior r = 0.49, 95% CL = 0.32 - 0.73, Based on 2 data-limited stock assessments.
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (30 of 100). 🛈
Climate Vulnerability (Ref. 125649):  Very high vulnerability (77 of 100). 🛈
Prijsklasse (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 77.4 [41.1, 153.6] mg/100g; Iron = 0.985 [0.516, 1.817] mg/100g; Protein = 20.2 [18.7, 21.8] %; Omega3 = 0.386 [0.272, 0.572] g/100g; Selenium = 25.1 [13.6, 48.5] μg/100g; VitaminA = 9.37 [4.09, 21.25] μg/100g; Zinc = 0.816 [0.558, 1.179] mg/100g (wet weight);