Balıkesir, Çaygören Baraj Gölü’ndeki Alburnus alburnus (L.) inci balığı populasyonunun boy-ağırlık ilişkileri, kondisyon ve üremesi üzerine bir araştırma

Abstract

Bu çalışmada, Çaygören Barajından yakalanan 713 adet inci balığının boy-ağırlık ilişkisi, kondisyonu ve üreme özellikleri 2010-2012 yılları arasında aylık olarak incelenmiştir. Eşey oranı %49’u erkek ve %51 dişi olmak üzere, 1: 1,04 olarak bulunmuştur. b değerleri dişi ve erkek için sırasıyla 3.26 ve 3.22 olarak hesaplanmıştır. (b>3.0). Aylık kondisyon değerleri her iki eşey için benzerlik gösterdiği bulunmuştur. Hepato-somatik indeks değerlerinin kondisyon faktörü değerleriyle parelellik gösterdiği ortaya konmuştur. Bu türün yumurtlama peryodunun Nisan-Ağustos ayları arasında gerçekleştiği tespit edilmiştir. 

Keywords

• Alburnus alburnus
• büyüme
• kondisyon
• yumurtlama

An investigation on length-weight relationships, condition and reproduction of the bleak, Alburnus alburnus (L.) population in Çaygören Dam Lake (Balikesir), Turkey

Abstract

In this study, length-weight relationships, condition, and reproduction characteristics of 713 bleak (Alburnus alburnus L.) caught from the Çaygören Dam Lake were investigated monthly in the years of 2010-2012. Sex ratio was found as 1:1.04, corresponding to 49% males and 51% females. b values were estimated as 3.26 and 3.22 for females and males (b>3.0) Values of monthly conditions were found to be shown a similar pattern for both sexes. The values of hepatosomatic index were pointed out to be parallel with the values of condition factor. Spawning period of this species was determined to occur between April and August.

Keywords

• Alburnus alburnus
• growth
• condition
• spawning

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