Feeding Habits of the Mediterranean Horse Mackerel

Authors : Hatice Torcu KOÇ, Zeliha ERDOĞAN

Pages : 182-193

Doi:10.28978/nesciences.567123

View : 40 | Download : 14

Publication Date : 2019-05-17

Article Type : Research Paper

Abstract :Feeding habits of the horse mackarel, Trachurus mediterraneus in Bandırma Bay, the Sea of Marmara were investigated in the years of 2013-2015. Stomach contents of 90 specimens collected by commercial vessels were analysed. The stomach contents were determined to consist of 2 major systematic groups: Crustacea insert ignore into journalissuearticles values(Copepoda, Cladocera, Mysidacea, Ampipoda, Decapoda);, and Pisces. The predominant and preferred prey category was Crustaceans. Besides, Crustaceans were identified as the most important food items considering the index of relative importance insert ignore into journalissuearticles values(IRI);. Howver, teleost eggs were occasional foods. Euphausiacea, was food category with especially abundant in spring while Copepoda was the most in autumn. Feeding intensity varied throughout 3 seasons insert ignore into journalissuearticles values(winter, spring, and autumn);. The lowest and highest feeding intensities were recorded in winter and autumn, respectively. Euphausiids were observed to be dominant prey during winter and spring. The lowest and highest feeding intensities were recorded in winter and autumn, respectively. T. mediterraneus revealed carnivorous feeding habit and. Euphausiacea food item with highest occurrence.
Keywords : Trachurus mediterraneus, diet composition, Bandırma Bay

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