Variations of Some Growth Characteristics and Length-Length Relationships of Sakarya Bleak (Alburnus esherichii Steindachner, 1897) in Different Habitats

Abstract

In this study, some growth characteristics and relationships of Sakarya bleak inhabiting different water habitats (dam, pond and creek) in the Bilecik Province of Türkiye were examined. Sample weights ranged from 0.17 to 111.25 g. Total lengths were measured between 2.70 and 19.80 cm. According to the localities, the b values varied between 2.9469±0.07 and 3.2548±0.03. R² values were computed between 0.850 and 0.996. The relative condition factor values were similar to each other, while the Fulton’s condition factor values ranged from 0.79±0.01 to 1.29±0.03. The length-weight (LWR) and length-length relationships (LLRs) of samples were examined. According to localities, growth type of the length - weight relationships were either isometric or positive allometric.

Keywords

• Fulton’s condition factor; isometric; growth; positive allometric; Sakarya bleak

İnci Balığı (Alburnus escherichii Steindachner, 1897)’nın Farklı Habitatlarda Bazı Büyüme Özellikleri ve Boy-Boy İlişkilerinin Değişimi

Öz

Bu çalışmada Bilecik ilindeki farklı su kaynaklarında (baraj, gölet ve dere) dağılım gösteren inci balığı (Alburnus escherichii Steindachner, 1897)’nın büyüme özellikleri ve ilişkileri çalışılmıştır. Örneklerin ağırlıkları 0,17 ile 111,25 g, arasında değişmiştir. Toplam boyları 2,70 - 19,80 cm arasında ölçülmüştür. Lokalitelere göre b değerleri 2.9469±0.07 - 3,2548±0,03. arasında değişmiştir. R² değerleri 0,850 - 0,996 arasında hesaplanmıştır. Oransal kondisyon faktörü değerleri birbirine benzer bulunurken Fulton kondisyon faktörü değerleri 0,79±0,01 - 1,29±0,03 arasındadır. Örneklerin boy-ağırlık (W=aL^b) ve boy-boy (TL=a+SLb) ilişkileri çalışılmıştır. Lokalitelere göre balıklar izometrik ve pozitif allometrik büyüme özelliği göstermiştir.

Anahtar Kelimeler

• Fulton kondisyon faktörü; izometrik; büyüme; pozitif allometrik; inci balığı

Kaynakça

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