Feeding habits of introduced European perch (Perca fluviatilis) in an impounded large river system in Turkey

dc.authoridSahin, Cemalettin/0000-0002-7924-3536
dc.authoridAkin, Senol/0000-0002-3851-4360
dc.authoridGOZLER, AHMET MUTLU/0000-0002-0991-6395
dc.contributor.authorAkin, Senol
dc.contributor.authorSahin, Cemalettin
dc.contributor.authorVerep, Bulent
dc.contributor.authorTuran, Davut
dc.contributor.authorGozler, Ahmet Mutlu
dc.contributor.authorBozkurt, Ahmet
dc.contributor.authorCelik, Kemal
dc.date.accessioned2024-09-18T20:19:55Z
dc.date.available2024-09-18T20:19:55Z
dc.date.issued2011
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThe feeding habits of perch (Perca fluviatilis) were documented by analyzing gut contents of more than 3300 specimens collected seasonally at nine stations located along the impounded large river in Turkey. Perch largely preferred fish (36%), insects (54%), other crustaceans (16%) and daphnia (13%). Spatial analysis showed that perch substantially preferred fish in the river section above the dam lakes and insects, crustacean and fish in the river section below the dam lake and in dam lakes. The perch at every size seemed to prefer fish with the highest and lowest percentage obtained for 0 to 80 and 141 to 200 mm. Insects and crustaceans were important for 81 to 140 mm and 0 to 120 mm length, respectively. Crustaceans were important in June, November and July. Insects and fish except for June 2009 constituted an important portion of the diets during every sampling month. The perch showed a piscivory feeding habit, a result obtained by trophic level calculated by stomach contents (3.87) and stable isotope (3.91) methods. Trophic level change little during the ontogeny with relatively higher value obtained for the larger length. The perch inhabiting in the river section above the dam lakes had the highest trophic level compared to the other sites. Diet breadth of perch was lower and higher for larger and middle length (101 to 140 mm), respectively. The diet breadth was higher in dam lakes, indicating opportunistic feeding habits in lakes. Being the most abundant fish species in the study system and showing predatory feeding habits suggested that perch may have an effect on local fish assemblage and itself through predation.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [TOVAG 107-O-519]en_US
dc.description.sponsorshipWe thank Dr. Tom Maddox for analyzing the stable isotope samples at the University of Georgia. We also thank Mr. Yuksel Sarioglu and Mr. Ali Koc for logistic supports in their fishing boats. This manuscript is produced from a project (S. Akin, PI.) funded by The Scientific and Technological Research Council of Turkey (TUBITAK) (Grant No. TOVAG 107-O-519). We thank the staff of TUBITAK and Gaziosmanpasa University for dealing with paperwork of the project.en_US
dc.identifier.endpage4307en_US
dc.identifier.issn1991-637X
dc.identifier.issue18en_US
dc.identifier.scopus2-s2.0-80052845701en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage4293en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12483/9951
dc.identifier.volume6en_US
dc.identifier.wosWOS:000298502900014en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAcademic Journalsen_US
dc.relation.ispartofAfrican Journal of Agricultural Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEuropean perchen_US
dc.subjectimpounded riveren_US
dc.subjectstable isotopeen_US
dc.subjectgut contents analysisen_US
dc.subjectTurkeyen_US
dc.subjectfeeding habitsen_US
dc.subjectYesilirmak Riveren_US
dc.subjectPerca fluviatilisen_US
dc.titleFeeding habits of introduced European perch (Perca fluviatilis) in an impounded large river system in Turkeyen_US
dc.typeArticleen_US

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