Lutjanus agennes: Difference between revisions
Quetzal1964 (talk | contribs) Added distribution and habitat |
Quetzal1964 (talk | contribs) added Biology |
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== Distribution and habitat == |
== Distribution and habitat == |
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Lutjanus agennes is found in the eastern Atlantic Ocean where it occurs along the western coast of Africa from Senegal to Angola, it also occurs in the [[Cape Verde Islands]] and the islands of the [[Gulf of Guinea]]. It occurs from the surface down to {{cvt|80|m}},<ref name = iucn/> over rock substrates and reefs. It can also be found in brackish lagoons and estuaries, particularly juveniles.<ref name = FAO/> |
Lutjanus agennes is found in the eastern Atlantic Ocean where it occurs along the western coast of Africa from Senegal to Angola, it also occurs in the [[Cape Verde Islands]] and the islands of the [[Gulf of Guinea]]. It occurs from the surface down to {{cvt|80|m}},<ref name = iucn/> over rock substrates and reefs. It can also be found in brackish lagoons and estuaries, particularly juveniles.<ref name = FAO/> |
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== Biology == |
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''Lutjanus agennes'', like all snappers, is predatory and feeds mainly on fishes and crustaceans. This species may form large [[Spawn (biology)|spawning]] aggregations away from the coasts, in the open sea. Larger individuals have been observed by fishermen to congregate in large numbers in areas of rocky reefs to spawn. It is thought that the West African snapper is a long lived species with a lifespan which may exceed 20 years.<ref name = iucn/> |
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==References== |
==References== |
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Revision as of 10:22, 29 May 2021
Subscript text
| Lutjanus agennes | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Acanthuriformes |
| Family: | Lutjanidae |
| Genus: | Lutjanus |
| Species: | L. agennes
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| Binomial name | |
| Lutjanus agennes Bleeker, 1863
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| Synonyms[2] | |
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Lutjanus agennes, the African red snapper, Guinean snapper or African cubrera snapper, is a species of marine ray-finned fish belonging to the family Lutjanidae, the snappers. It is native to the coastal Atlantic waters of Africa.
Taxonomy
Lutjanus agennes was first formally described in 1863 by the Dutch physician, herpetologist and ichthyologist Pieter Bleeker with the type locality given as “Ashantee in Guinea”.[3] Bleeker did not explain the derivation of the specific name but it may be from agenes, which means “of low family”, possibly a reference to its similarity to L. modestus, the name modestus meaning the “modest or unassuming one”.[4] Bleeker also described L. modestus in 1863 and it is not clear whether this is a synonym of this species or L. endecacanthus.[2]
Description
Lutjanus agennes has a relatively deep body with a pointed snout and a rather angular forehead. The mouth extends back to below the centre of the eye. The vomerine teeth are arranged in a triangular patch which may have a posterior extension. The incision and the knob on the preoperculum are not well developed.[5] The dorsal fin has 10 spines and 13-14 soft rays while the anal fin contains 3 spines and 8 soft rays. The overall colour is reddish brown to slightly orange on the back and upper flanks, shading to pink or whitish on lower flanks and abdomen. The tips of the pelvic fins are rather darks from there is no blue line on the cheeks. The juveniles are marked with 6 to 8 vertical rows of small white spots or slender bars on their flanks. This fish attains a maximum total length of 139 cm (55 in), although 50 cm (20 in) is more typical, and the maximum published weight is 60 kg (130 lb).[2]
Distribution and habitat
Lutjanus agennes is found in the eastern Atlantic Ocean where it occurs along the western coast of Africa from Senegal to Angola, it also occurs in the Cape Verde Islands and the islands of the Gulf of Guinea. It occurs from the surface down to 80 m (260 ft),[1] over rock substrates and reefs. It can also be found in brackish lagoons and estuaries, particularly juveniles.[5]
Biology
Lutjanus agennes, like all snappers, is predatory and feeds mainly on fishes and crustaceans. This species may form large spawning aggregations away from the coasts, in the open sea. Larger individuals have been observed by fishermen to congregate in large numbers in areas of rocky reefs to spawn. It is thought that the West African snapper is a long lived species with a lifespan which may exceed 20 years.[1]
References
- ^ a b c de Morais, L.; Sidibé, A; Nunoo, F.; et al. (2015). "Lutjanus agennes". IUCN Red List of Threatened Species. 2015: e.T194332A2313414. doi:10.2305/IUCN.UK.2015-4.RLTS.T194332A2313414.en. Retrieved 27 May 2021.
- ^ a b c Froese, Rainer; Pauly, Daniel (eds.). "Lutjanus Lutjanus agennes". FishBase. February 2021 version.
- ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Lutjanus". Catalog of Fishes. California Academy of Sciences. Retrieved 27 May 2021.
- ^ Christopher Scharpf & Kenneth J. Lazara, eds. (5 January 2021). "Order LUTJANIFORMES: Families HAEMULIDAE and LUTJANIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 24 May 2021.
- ^ a b Gerald R. Allen (1985). FAO species catalogue Vol.6. Snappers of the world An annotated and illustrated catalogue of lutjanid species known to date (PDF). FAO Rome. pp. 53–54. ISBN 92-5-102321-2.
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