The Aquatic Oligochaeta (Annelida) Fauna of the Karasu Stream

Öz

Sakarya River is defined hydrologically in three parts: upper, middle and lower Sakarya River Basin. This study was carried out in lower Sakarya River (Karasu). Aquatic Oligochaeta samples were collected from four chosen stations between January 2008 and October 2008 seasonally. In total, eight Oligochaeta species were identified during the study period. These species belong to Naididae family and to Tubificinae subfamily (Tubificoid Naidid) [Limnodrilus hoffmeisteri Claparède, 1862; Limnodrilus udekemianus Claparède, 1862; Limnodrilus claparedeianus Ratzel, 1868; Potamothrix hammoniensis (Michaelsen, 1901); Psammoryctides deserticola (Grimm, 1877); Tubifex blanchardi Vejdovsky, 1891; Tubifex ignotus (Stolc, 1886); Tubifex tubifex (Müller, 1774)]. Also, it was observed that Limnodrilus hoffmeisteri and Tubifex tubifex, were found to be dominant, and thus indicator species for pollution in the river.

Anahtar Kelimeler

• Oligochaeta,Karasu,Sakarya River

Karasu Nehri’nin Sucul Oligochaeta (Annelida) Faunası

Öz

Sakarya Nehir havzası; yukarı, orta ve aşağı (Karasu) olmak üzere üç bölüme ayrılır. Bu çalışma Aşağı Sakarya (Karasu) Nehri’nde gerçekleştirilmiştir. Akarsu üzerinde dört istasyon seçilmiş ve bu istasyonlardan Ocak 2008-Ekim 2008 tarihleri arasında mevsimsel periyotlarla Oligochaeta örnekleri toplanmıştır. Çalışma sonunda, Oligochaeta sınıfına ait sekiz tür bulunmuştur. Bu türler Naididae familyasından ve Tubificinae (Tubificoid Naidid) alt familyasındadır [Limnodrilus hoffmeisteri Claparède, 1862; Limnodrilus udekemianus Claparède, 1862; Limnodrilus claparedeianus Ratzel, 1868; Potamothrix hammoniensis (Michaelsen, 1901); Psammoryctides deserticola (Grimm, 1877); Tubifex blanchardi Vejdovsky, 1891; Tubifex ignotus (Stolc, 1886); Tubifex tubifex (Müller, 1774)]. Ayrıca çalışmada, kirlilik indikatörü olarak bilinen Limnodrilus hoffmeisteri ve Tubifex tubifex türlerinin nehirde baskın olduğu gözlenmiştir.

Anahtar Kelimeler

• Oligochaeta,Karasu,Sakarya Nehri

Kaynakça

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