Nilüfer çayında Squalius cii Richardson, 1857 ’nin morfometrik ve meristik karakterlerinin belirlenmesi

Abstract

Tatlı su kefali ülkemiz iç sularının önemli biyolojik elementlerinden biridir. S. cii Biga Penisula yarım adasına endemik bir türdür. Ülkemizde kuzeybatı Anadolu’da yayılış gösteren bu tür Nilüfer çayının bütün kollarında bulunmaktadır. Bu çalışmada S. cii’nin Nilüfer Çayı’nın iki ana kolundan elde edilen örneklerin meristik ve morfometrik özelliklerinin karşılaştırılması yapılmıştır. Morfometrik 25 meristik 7 karakter ölçülmüştür. Ölçülen bu karakterlerin standart boya oranlamaları kullanılarak PCA analizleri yapılmıştır. Yapılan PCA analizi sonucunda populasyonlarının bazı karakterler bakımından farklılık gösterdiği ve kısmen de olsa 2 grup oluşturduğu tespit edilmiştir. Bu farklılıkları ortaya koyan 4 faktörün varyansı açıklama oranı %77,51 olarak bulunmuştur

Keywords

• Squalius cii
• morfometri
• meristik
• Bursa
• Nilüfer Çayı

Determination of meristic and morphometric characteristics of chubs, Squalius cii Richardson, 1857 , in Nilufer Stream Turkey

Abstract

Chubs is one of the most important biological elements of Turkey's inland waters. This species which spread northwest Anatolia in Turkey, found in all branches of the Nilufer Stream. S. cii is endemic species to Biga Peninsula. This study was conducted to compare meristic and morphometric features of S.cii were obtained from the two main tributaries in Nilufer Stream. Morphometrically, 25 phenotypic characters were studied, and meristically, 7 characters. PCA analysis is performed using the measurement characters, were regressed to a standart length. As a result of the PCA analysis of the populations which differ in some characters and partially form two groups were found. Demonstrating these differences, the variance of the rate of four factors 77.51 % was found

Keywords

• Squalius cii
• morphometric
• meristic
• Bursa
• Nilufer Stream

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