Diet Composition of Bluefish Pomatomus saltatrix (Linnaeus, 1766) in the Sea of Marmara

Authors : Habib BAL, Telat YANIK, Dilek TÜRKER

Pages : 46-50

Doi:10.33714/masteb.675929

View : 17 | Download : 8

Publication Date : 2020-06-30

Article Type : Research Paper

Abstract :In this study, diet composition of bluefish Pomatomus saltatrix insert ignore into journalissuearticles values(Linnaeus, 1766); was investigated. A total of 512 bluefish samples were monthly collected from commercial fishing boats operating in the Sea of Marmara between January and December 2014. It was determined that the total length distribution of the samples varied between 12.3-47.3 cm. 367 of them insert ignore into journalissuearticles values(71.67%); were found to be the full of the stomach. The nutritional composition of stomach contents only two main prey groups insert ignore into journalissuearticles values(teleostei and crustacean); were identified. In evaluation, relative importance indexes insert ignore into journalissuearticles values(IRI); food groups were calculated. According to the relative importance index insert ignore into journalissuearticles values(IRI=91.8%); anchovy insert ignore into journalissuearticles values( Engraulis encrasicolus ); has been found to be the most preferred food group. The number of individuals whose stomachs were found to be full was low in the winter months; it started to rise with spring and reached the highest level in the autumn months. It was determined that the increase in the total number of stomachs occurred between August and October in relation to the reproductive period. It was found that stomach fullness rates significantly relationship between sex and seasons insert ignore into journalissuearticles values(p<0.01);.
Keywords : Diet, Stomach content, Prey predator, Bluefish, Marmara Sea