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dc.contributor.authorGül, Güzin
dc.contributor.authorDemirel, Nazlı
dc.date.accessioned2021-03-03T09:29:40Z
dc.date.available2021-03-03T09:29:40Z
dc.date.issued2020
dc.identifier.citationGül G., Demirel N., "Stomach content of three batoid species in the Sea of Marmara of the North-eastern Mediterranean", Journal of the Black Sea / Mediterranean Environment, cilt.26, sa.3, ss.294-309, 2020
dc.identifier.othervv_1032021
dc.identifier.otherav_1d4ae3ac-ee85-4be7-a9f2-d6b334c0dea5
dc.identifier.urihttp://hdl.handle.net/20.500.12627/24904
dc.identifier.urihttps://avesis.istanbul.edu.tr/api/publication/1d4ae3ac-ee85-4be7-a9f2-d6b334c0dea5/file
dc.description.abstractThe feeding habits and trophic levels of three uncommon batoid species (Dasyatis pastinaca, Myliobatis aquila, Torpedo marmorata) were investigated in the Sea of Marmara, with two different methodical approaches: stomach content analysis and stable isotope analysis. The stomach contents indicated that the teleost species is the most important prey group for D. pastinaca and T. marmorata, while Mollusca is the main prey group for M. aquila. Niche breadths were calculated 0.54 for D. pastinaca while 0.29 for M. aquila. No significant diet overlap was detected between D. pastinaca and M. aquila (0.21) based on Pianka index. δ15N muscle and δ15N liver values statistically differed between D. pastinaca and M. aquila (Fpseudomuscle=33.736, p=0.03; Fpseudoliver= 26.173, p= 0.01). The trophic levels were 4.20±0.73 for D. pastinaca, 4.04±0.63 for M. aquila and for T. marmorata 4.46±0.79 by stomach content analysis. The trophic levels of species from stable isotope analysis by δ15N were calculated as 3.67 for T. marmorata, 3.32 for D. pastinaca and 2.56 for M. aquila. The difference in trophic levels may be explained by long-term and short-term feeding strategy of these species. Torpedo marmorata and M. aquila have higher δ15N values compared to samples from other regions of the Mediterranean.
dc.language.isoeng
dc.subjectHidrobiyoloji
dc.subjectDeniz Biyolojisi
dc.subjectYaşam Bilimleri
dc.subjectBiyolojik Oşinografi
dc.subjectTemel Bilimler
dc.subjectMultidisciplinary
dc.subjectBİYOLOJİ
dc.subjectBalıkçılık
dc.subjectÇOK DİSİPLİNLİ BİLİMLER
dc.subjectBiyoloji ve Biyokimya
dc.subjectDoğa Bilimleri Genel
dc.subjectYaşam Bilimleri (LIFE)
dc.subjectTemel Bilimler (SCI)
dc.titleStomach content of three batoid species in the Sea of Marmara of the North-eastern Mediterranean
dc.typeMakale
dc.relation.journalJournal of the Black Sea / Mediterranean Environment
dc.contributor.departmentİstanbul Üniversitesi , Deniz Bilimleri Ve İşletmeciliği Enstitüsü ,
dc.identifier.volume26
dc.identifier.issue3
dc.identifier.startpage294
dc.identifier.endpage309
dc.contributor.firstauthorID2507424


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