Kadıköy Barajı’nın (Türkiye) Rotifera Bolluğu ve Tür Çeşitliliği

Öz

Bu araştırma, Kadıköy baraj gölünün Rotifera faunasını ve kommunite yapısını belirlemek amacıyla yapılmıştır. Araştırmada Kadıköy Barajı’nda belirlenen 3 istasyonda Mart 2010-Şubat 2011 tarihleri arasında Rotifera örnekleri toplanırken bu organizmaları etkileyen bazı çevresel parametrelerde ölçülmüştür. Toplanan örneklerin değerlendirmesi sonucunda 33 Rotifera türü tespit edilirken Kadıköy Baraj Gölü’nde yıllık ortalama 70 472 birey m-3 bulunmuştur. En fazla birey 1. istasyonda (81 819 birey m-3); Mayıs ayında (100 901 birey m-3) ve ilkbaharda (83 458 birey m-3) bulunmuştur. Çalışma süresince tüm aylarda bulunan Asplanchna priodonta, Brachionus angularis, Filinia terminalis ve Keratella cochlearis en yaygın türler olarak tespit edilmiştir. Baraj gölü’nde tespit edilen Rotifera türlerine ve ölçülen fizikokimyasal parametrelere göre Kadıköy Baraj Gölü’nün mezo-ötrofik karakterde olduğu belirlenmiştir.

Anahtar Kelimeler

• Rotifera,tür çeşitliliği,su kalitesi,baraj gölü

Diversity and Abundance of Rotifera in Kadıköy Reservoir of Turkey

Öz

This research has been carried out to determine diversity and abundance of Rotifera in Kadıköy Reservoir. For this purpose, Rotifera and water samples were collected monthly from March 2010 to February 2011 at three different stations in the reservoir. A total of 33 species from Rotifera were determined in the qualitative evaluation of samples taken from the reservoir. The quantitative evaluation of the Rotifera samples revealed presence of an average of 70 472 ind m-3 in Kadıköy Reservoir. The maximum number of Rotifera were recorded at 1st station (81 819 ind m-3); in May (100 901 ind m-3) and in spring season (83 458 ind m-3). Asplanchna priodonta, Brachionus angularis, Filinia terminalis and Keratella cochlearis sampling in all months were found to be the most common species during the study. When we evaluate the species identified in the reservoir, the distribution of the individuals that make up the Rotifera fauna and physical-chemical parameters as a whole, it has been concluded that Kadıköy Reservoir is in meso-eutrophic character in terms of Rotifera.

Anahtar Kelimeler

• Rotifera,species diversity,water quality,reservoir

Kaynakça

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