Gerres longirostris (Lacépède, 1801)

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Gerres longirostris : Fricke et al., 2018 : 204Annotated checklist of the fishes of Madagascar, southwestern Indian Ocean, with 158 new records..
Labrus longirostris : Lacépède, 1801 : 427, 468, pl. 19, fig. 1 (senior synonym)Histoire naturelle des poissons..
Gerres acinaces : Bleeker, 1854 a : 194 (junior synonym)Species Piscium bataviensium novae vel minus cognitae. | Sauvage, 1891 b : 245 (junior synonym)Histoire naturelle des Poissons. | Pellegrin, 1934 a : 428 (junior synonym)La faune ichthyologique des eaux douces de Madagascar. | Kiener, 1963 a : 84, pl. 48 (junior synonym)Poissons, pêche et pisciculture à Madagascar. | Kiener, 1966 a : 1122. Probably not distinct from G. oyena (53.2.5) according to Smith (1949). (junior synonym)Contribution à l'étude écologique et biologique des eaux saumâtres malgaches. Les poissons euryhalins et leur rôle dans le développement des pêches. | Wodlland, 1984 : 2 p., fig. (junior synonym)Gerreidae. | Bianchi, 1985 : 60, 175, 183, fig. (junior synonym)FAO species identification sheets for fishery purposes. Field guide to the commercial marine and brackish-water species of Tanzania. | Roux, 1986 a : 326 (junior synonym)53. Gerridae. | Fischer et al., 1990 : 98, 380, 395, fig. (junior synonym)Fichas FAO de identificaçao de espécies para actividades de pesca. Guia de campo das espécies comerciais marinhas e de aguas salobras de Moçambique. | Stiassny & Raminosoa, 1994 : 139 (junior synonym)The fishes of the inland waters of Madagascar. | Sommer et al., 1996 : 238, 344, 353, fig. (junior synonym)FAO species identification field guide for fishery purposes. The living marine resources of Somalia. | Whitfield, 1998 : 20, 32, 84, 144, 172, 210, 221, fig. (junior synonym)Biology and ecology of fishes in southern African estuaries. | Harrison, 2001 : 47 (junior synonym)Length-weight relationships of fishes from South African estuaries..

Attributs

DISTRIBUTION: Lien Faunafri
Colour pattern : Woodland, 2001 .
Common names : Kleinskub-plooibek (Afrikaans), Longtail silver-biddy / Longtail silverbiddy / Mojarra / Scimitar silver-biddy / Silver biddy / Small-scale silverbelly / Smallscale mojarra / Smallscale pursemouth / Strong-spined silver-biddy / Strongspine silver-biddy / Strongspine silverbiddy (English), Blanche armée / Blanche goubernail / Blanche gouvernail / Breton / Gerres / Poisson blanc (French), Langschwanz-Silberling / Silberling (German), Ventre argento (Italian), Fiampotsy / Fiampotsy / Matsitsoky (Malagasy-Betsimisaraka), Ambariaka / Bariaka / Tsaratsaina (Malagasy, Sakalava), Melanuria timoneira (Portuguese), Mojarra espinuda / Mojarra timonera (Spanish), Chaa (Swahili: Tanzania) .
Condition / length-weight relationship : Harrison, 2001 .
Current distribution known : found from the east coast of Africa to the Red Sea including Madagascar, Comores, Seychelles, Mauritius, Réunion, Maldive and Laccadive Islands; also occurring in the "Gulf", and along the southern coast of India and Sri Lanka. Elsewhere, throughout the tropical Indo-Pacific to the western Pacific islands .
Distribution_references : Whitefield, 1998 | Woodland, 2001 .
Food habits / trophic level : in South Africa, the diet of postlarvae (< 20 mm SL) in the Kosi estuarine system was dominated by marine and estuarine calanoid copepods. Larger juveniles (20-40 mm SL) consumed mainly polychaetes, bivalve siphon tips and chironomid larvae. The diet of juveniles greater than 40 mm SL and adults consisted mainly (64% of energy intake) of the siphon tips belonging to the bivalve Hiatula lunulata. In Durban Bay this species feeds mainly on bivalves, polychaetes, amphipods and copepods. Food items are usually detected visually and the protrusible jaw mechanism facilitates the capture of sedentary and motile prey. Feeding occurs mainly during the day, although some foraging has been recorded during nocturnal hours .
Food habits / trophic level_references : Whitefield, 1998 .
Habitat / home range : appears to favour clear shallow waters over sandy bottoms; broadly ranging, from coral reefs to brackish lagoons .
Habitat_references : Sommer et al., 1996 | Whitefield, 1998 | Woodland, 2001 .
Morphology / anatomy : Whitefield, 1998 | Woodland, 2001 .
Reproduction : in South Africa, sexual maturity for both sexes is attained at approximately 11 cm SL and mature or ripe gonads have been recorded throughout the year. The absence of ripe- running individuals from KwaZulu-Natal estuaries suggests that the completion of gonadal development occurs in the sea. Spawning in the KwaZulu-Natal nearshore marine environment probably occurs throughout the year, with newly recruited fry being recorded during all four seasons in the Kosi Estuary .
Reproduction_references : Whitefield, 1998 .
Size : 350 mm TL .
Types :
- Gerres acinaces Bleeker, 1854 a: 194. Type locality: "Batavia". Holotype RMNH.
- Labrus longirostris Lacépède, 1801: 427, 468, pl. 19, fig. 1. Type locality: Madagascar. Neotype MNHN 1965-0388.