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of 45–46. This species is a dull silvery colour, with a brownish to green tint in the back fading to whitish on the breast and belly. There is a large, round, dusky blotch directly below the first dorsal fin which sits beneath the lateral line at level of first dorsal fin, this blotch is similar in
369:
The lesser
African threadfin is an important quarry species in the commercial trawl fishery of the eastern Atlantic, and it makes up between 10 and 20% of the total landings by weight. In 2000-2006 the annual catch from western Africa averaged 15,600 tonnes, with the largest catches being landed in
356:
in
Nigeria it was found that 25% of the females present had developed from the juvenile stage, i.e. had not been males, while the remainder had passed through a hermaphroditic phase having been males. Hermaphroditic fish are not reproductively functional. The sex composition of that population was
343:
The lesser
African threadfin occurs over muddy bottoms in shallow coastal waters at depths between 10 and 70 metres (33 and 230 ft), and they are often observed in estuaries and lagoons. Its diet is dominated by crustaceans but it will feed on small fishes. The stomach contents of
305:
which are widely separated, the first dorsal fin has 8 weak spines and the second has a single spine and 13 or 14 soft rays while the anal fin has 3 spines and 11 or 12 soft rays. The second dorsal fin and anal fin have bases which are approximately equal in length. The
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Nigeria, Ghana, and Gabon. In
Senegal, it is regarded as an important coastal resource. Fishermen use beach seines, gillnets and shallow haul nets to catch this species. This species is highly regarded and is marketed fresh, dried salted or smoked.
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occurs throughout the year but peaks in the dry season and almost ceasesd during the rains. Most of these fish will not survive past the age of four years old.
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Carpenter, K.E.; Camara, K.; Djiman, R.; Lindeman, K.; Montiero, V.; Nunoo, F.; Quartey, R.; Sagna, A.; Sidibe, A.; de Morais, L.; Williams, A.B. (2015).
615:
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The lesser
African threadfin is found in the eastern Atlantic Ocean from Morocco south as far as Angola. It is also found around the
706:
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The lesser
African threadfin has a rather compress, moderately elongated body with has a depth which is around one thirds of the
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659:
502:
Threadfins of the World (family
Polynemidae): An Annotated and Illustrated Catalogue of Polynemid Species Known to Date
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74:
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are positioned low on the body, this fin has 9 or 10 detached threadlike lower rays. It has a count scales in the
301:. The mouth has an inferior position and is overhung by the blunt snout. The jaws extend past the eye. It has two
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508:. FAO species identification field guide for fishery purposes. Vol. 3. Food & Agriculture Org.
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while those taken in estuaries had 31% of their stomach contents made up of detritus In a study near
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Hiroyuki
Motomura & Food and Agriculture Organization of the United Nations (2004).
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of 50 centimetres (20 in) but 30 centimetres (12 in) is more normal.
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which is found in the eastern
Atlantic Ocean off the western coast of Africa.
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and has been recorded off
Namibia and in the Mediterranean Sea off Algeria.
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size to the eye. The lesser African threadfin can attain a
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63.73% male, 22.22% hermaphroditic and 14.3% female.
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471:"Lesser african threadfin (Galeoides decadactylus)"
417:10.2305/IUCN.UK.2015-4.RLTS.T21132319A42691739.en
8:
475:Fishes of the NE Atlantic and Mediterranean
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477:. Marine Species Identification Portal
348:taken from the open sea had almost no
735:IUCN Red List near threatened species
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403:IUCN Red List of Threatened Species
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1:
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274:) is a species of marine
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70:Scientific classification
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24:Lesser African threadfin
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458:. December 2019 version.
444:; Pauly, Daniel (eds.).
410:: e.T21132319A42691739.
268:lesser African threadfin
232:Polynemus enneadactylus
740:Fish described in 1795
530:Galeoides decadactylus
448:Galeoides decadactylus
396:Galeoides decadactylus
272:Galeoides decadactylus
263:
262:Galeoides decadactylus
224:Galeoides polydactylus
213:Polynemus polydactylus
205:Polynemus decadactylus
179:Galeoides decadactylus
261:
161:G. decadactylus
339:Habitat and biology
243:Polynemus astrolabi
40:Conservation status
333:Cape Verde Islands
264:
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694:Open Tree of Life
522:Taxon identifiers
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55:Near Threatened
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479:. Retrieved
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421:. Retrieved
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323:Distribution
317:total length
312:lateral line
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745:Polynemidae
629:iNaturalist
423:20 November
365:Human usage
303:dorsal fins
293:Description
287:Polynemidae
208:Bloch, 1795
137:Polynemidae
127:Perciformes
729:Categories
374:References
346:specimens
282:from the
280:threadfin
155:Species:
148:Galeoides
93:Kingdom:
87:Eukaryota
673:21132319
647:10453293
603:FishBase
553:BioLib:
545:Q2555959
539:Wikidata
481:14 April
455:FishBase
359:Spawning
350:detritus
196:Synonyms
133:Family:
107:Chordata
103:Phylum:
97:Animalia
83:Domain:
60:IUCN 3.1
699:3633170
621:2393337
247:Sauvage
189:, 1795)
143:Genus:
123:Order:
113:Class:
58: (
712:126997
686:126997
660:645691
595:124073
569:108133
556:157524
284:family
249:, 1881
238:, 1829
236:Cuvier
219:, 1798
707:WoRMS
642:IRMNG
634:68078
590:EUNIS
582:3F3T8
506:(PDF)
354:Lagos
187:Bloch
681:OBIS
668:IUCN
655:ITIS
616:GBIF
564:BOLD
483:2020
425:2021
408:2015
331:and
278:, a
266:The
217:Vahl
608:341
577:CoL
412:doi
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
