Galeoides decadactylus, Lesser African threadfin : fisheries

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Galeoides decadactylus (Bloch, 1795)

Lesser African threadfin
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Galeoides decadactylus   AquaMaps   Data sources: GBIF OBIS
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Image of Galeoides decadactylus (Lesser African threadfin)
Galeoides decadactylus
Picture by 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

Classification / Names ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | 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 / climate zone / ລະດັບຄວາມເລິກ / distribution range ນິເວດວິທະຍາ

ສັດທະເລ; ນ້ຳກ່ອຍ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ; ລະດັບຄວາມເລິກ 10 - 70 m (Ref. 10799). Subtropical; 37°N - 27°S, 19°W - 16°E (Ref. 57343)

ການແຜ່ກະຈາຍ ປະເທດ | ເຂດ FAO | ລະບົບນິເວດ | ການປະກົດຕົວ | ຈຸດໃດໜຶ່ງທີ່ສະແດງອອກໃນແຜນທີ່ (ພ້ອມທັງສະແດງຂໍ້ມູນເພີ້ນເຕີມ) | ການແນະນຳ | 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.

Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age

ການຈະເລີນເຕັມໄວ: Lm 11.6  range ? - ? cm
Max length : 50.0 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 5377); common length : 30.0 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 3659)

Short description ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 9; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 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.

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. 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).

Life cycle and mating behavior ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ

Also Ref. 32209.

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ | ຜູ້ຮ່ວມມື

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)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Near Threatened (NT) ; Date assessed: 15 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Estimates based on models

Preferred temperature (ເອກະສານອ້າງອີງ 123201): 20.1 - 27.9, mean 25.9 °C (based on 66 cells).
Phylogenetic diversity index (ເອກະສານອ້າງອີງ 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).
ຊັ້ນເຂດຮ້ອນ (ເອກະສານອ້າງອີງ 69278):  3.6   ±0.67 se; based on food items.
ຄວາມຢືດຢຸ່ນ (ເອກະສານອ້າງອີງ 120179):  ຂະໜາດກາງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 1.4 - 4.4 ປີ (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). 🛈
Price category (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);