Species distribution of oligochaetes related to environmental parameters in lake sapanca (marmara region, turkey)

Sapanca Gölü oligoket faunasını belirlemek amacıyla Eylül 2000-Ağustos 2001 tarihleri arasında 5 istasyondan aylık olarak örnekler toplanmıştır. Çalışma sonucunda 13 tür tanımlanmıştır. Bu türler Aulodrilus limnobius, Tubifex tubifex, Tubifex ignotus, Tubifex nerthus, Limnodrilus hoffmeisteri, Potamothrix hammoniensis, Potamothrix vejdovskyi, Nais communis, Spirosperma ferox, Psammoryctides barbatus, Ilyodrilus templetoni, Psammoryctides deserticola, Paranais frici’dir. Ayrıca oligoket örneklerinin alındığı noktalardaki suyun bazı fizikokimyasal değerleri (sıcaklık, çözünmüş oksijen, pH, bulanıklık ve derinlik) de ölçülmüştür. Göldeki ortalama Oligoket yoğunluğu 1,887 birey/m2’dir. Shannon-Wiener çeşitlilik indeksine göre, Sapanca Gölü 2,61 zenginliğe sahip olarak bulunmuş, 1. istasyon en yüksek (4,01) çeşitlilik gösterirken, 4. istasyon en düşük (1,41) çeşitliliğe sahip olarak bulunmuştur. m2 deki birey sayıları ile fiziko-kimyasallar arasındaki ilişkiyi anlamak amacıyla Pearson korelasyon indeksi uygulanmıştır. Tanımlanan 13 tür ile sıcaklık arasında doğru, çözünmüş oksijen ile ters orantı olduğu belirlenmiştir. Bu gölde şimdiye kadar Oligoket faunasıyla ilgili herhangi bir çalışma yapılmamıştır. Saptanan türler bu göl için yeni kayıttır.

Anahtar Kelimeler:

Marmara Bölgesi, türler, Oligochaeta, fauna, çevresel faktörler, Türkiye

Oligoket türlerinin sapanca gölü’nde (marmara bölgesi, türkiye) çevresel parametrelerle ilişkili dağılımı

In order to determine the oligochaeta fauna of Lake Sapanca (Turkey) samples were collected from 5 stations monthly, between September 2000-August 2001. As a result of the study, 13 species, which belong to 9 genera, were determined. These species are Aulodrilus limnobius, Tubifex tubifex, Tubifex ignotus, Tubifex nerthus, Limnodrilus hoffmeisteri, Potamothrix hammoniensis, Potamothrix vejdovskyi, Nais communis, Spirosperma ferox, Psammoryctides barbatus, Ilyodrilus templetoni, Psammoryctides deserticola, Paranais frici. Also some physicochemical parameters of the water (temperature, dissolved oxygen, pH, turbidity and depth) were measured at the sampling site. The average density of total oligochaetes in the benthos of the lake was 1,887 ind m-2. According to Shannon-Wiener index, Lake Sapanca was found had 2.59 richness and, 5th station were found to have highest diversity (3.87) while 3rd station to have the lowest (1.59). There are almost no data on the Oligochaeta fauna of this lake so far. Hence, all the determined taxa from the localities are recorded for the first time.

Keywords:

Marmara Region, species, Oligochaeta, fauna, environmental factors, Turkey,

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