Feeding ecology of the topmouth gudgeon pseudorasbora parva (Temminck and Schlegel, 1846) in the Gelingüllü Reservoir, Turkey
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Date
2013
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info:eu-repo/semantics/openAccess
Abstract
Pseudorasbora parva (Temminck and Schlegel, 1846) Türkiyedeki göl ve akarsulara istenmeden karışarak geniş bir dağılım gösterir. Türkiye tatlı su balık çeşitliliği bakımından doğal ihtiyofauna elemanları arasında bu şekildeki istilacıların hassaslaştıracağı çok sayıda endemik tür içerir. Gelingüllü Barajı Orta Anadoluda Kızılırmak üzerinde yer alır ve endemik türler de dahil olmak üzere doğal ve istilacı türler ile zengin bir ihtiyofaunaya sahiptir. P. parva örneklerinin ön bağırsak içerikleri 2003-2005 arasında toplanan örneklerde incelendi. Beslenme şiddetindeki mevsimsel ve ontogenetik değişiklikler belirlendi. P. parva bireyleri başlıca Cladocera, Copepoda ve Rotifera gibi zooplanktonlarla beslenmektedirler. Yaz boyunca P. parva bireylerinin ön bağırsaklarında yüksek oranda Bacillariophyta ve Cyanobacteria üyelerine rastlandı. Bu istilacı balık türünün Gelingüllü Barajında başarılı bir populasyon kurmasında beslenme özellikleri etkili olabilir.
Pseudorasbora parva (Temminck and Schlegel, 1846) is widely distributed in rivers and lakes of Turkey owing to accidental introductions. Turkey is rich in biodiversity of freshwater fish and has a high level of endemicity of native ichthyofauna, which is vulnerable to such introductions. The Gelingüllü Reservoir located on the Kızılırmak drainage in Central Anatolia has rich ichthyofauna with native and introduced fish species, including endemic species. The contents of the foregut of P. parva samples collected between Summer 2003 and Summer 2005 were examined. Seasonal and ontogenetic changes in feeding intensity were determined. P. parva mainly feeds on zooplankton such as Cladocera, Copepoda, and Rotifera. Members of the Bacillariophyta and Cyanobacteria were identified in high proportions in the foregut contents of P. parva particularly during summer. The feeding traits of this invasive fish may have an influence on the establishment of a successful population in Gelingüllü reservoir.
Pseudorasbora parva (Temminck and Schlegel, 1846) is widely distributed in rivers and lakes of Turkey owing to accidental introductions. Turkey is rich in biodiversity of freshwater fish and has a high level of endemicity of native ichthyofauna, which is vulnerable to such introductions. The Gelingüllü Reservoir located on the Kızılırmak drainage in Central Anatolia has rich ichthyofauna with native and introduced fish species, including endemic species. The contents of the foregut of P. parva samples collected between Summer 2003 and Summer 2005 were examined. Seasonal and ontogenetic changes in feeding intensity were determined. P. parva mainly feeds on zooplankton such as Cladocera, Copepoda, and Rotifera. Members of the Bacillariophyta and Cyanobacteria were identified in high proportions in the foregut contents of P. parva particularly during summer. The feeding traits of this invasive fish may have an influence on the establishment of a successful population in Gelingüllü reservoir.
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Keywords
Balıkçılık, Zooloji
Journal or Series
Turkish Journal of Fisheries and Aquatic Sciences
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Scopus Q Value
Volume
13
Issue
1
