Diet of Elagatis bipinnulata (Guoy & Gaimard, 1824) in Côte d’Ivoire (Gulf of Guinea)

Autor:	Amande Monin Justin, Diaha N’guessan Constance, Edoukou Abekan, N’guessan Yao, Angui Kouamé Jean Paul, N’da Konan, Assan N’dri Florentine, Guillou Aurélie Marie
Rok vydání:	2019
Předmět:	0106 biological sciences Detritus biology urogenital system 010604 marine biology & hydrobiology fungi Food item Zoology Cote d ivoire Artisanal fishing biology.organism_classification Fish measurement 010603 evolutionary biology 01 natural sciences Crustacean Carangidae Portunus
Zdroj:	European Scientific Journal ESJ. 15
ISSN:	1857-7431 1857-7881
DOI:	10.19044/esj.2019.v15n3p131
Popis:	The rainbow runner, Elagatis bipinnulata, which belongs to the Carangidae family, is regularly encountered in the landing of artisanal fishing in Abobo-Doume (Republic of Cote d’Ivoire). The object of this work is to study the diet of Elagatis bipinnulata according to the marine seasons and the size of the various specimens (immature and mature). About 900 fish measuring between 43 and 93 cm (fork length - FL) were examined from September 2015 to August 2017. On the 900 examined stomachs, 541 were empty, which is giving a vacuity coefficient of 60.11%. A feeding index (IRI: index of relative importance of food item) combining three methods percentage occurrence, numerical method and weight method) was used. The identification of the items found in the stomach contents revealed that the principals food items were fish (%IRI=48.85) and crustaceans (%IRI=45.78). Cephalopods (%IRI=4.17), fish detritus (%IRI=1.2) and crustaceans (Portunus puber) (%IRI=0.55) are accidental food. The diet of the species does not change according to the seasons and the size of fish.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::112d3b3cc337e722bd3a6d5a3884a1f6 https://doi.org/10.19044/esj.2019.v15n3p131 Zobrazit plný text záznamu