Length-Weight Relationship and Condition Factor of Alburnus sellal Heckel, 1843 Population in the Tigris River (Şırnak-Turkey)

Abstract

This study was aimed to investigate the length-weight relationship and condition factor of Alburnus sellal population from Güçlükonak to Cizre (Şırnak) location of Tigris River between January and December 2015. A total of 107 specimen of A. sellal length-weight relationships were determined as W=0.0129*L2.925 (R2=0.8803±0.115) in females, W=0.0076*L3.0908 (R2=0.7033±0.151) in males, and W=0.0092*L3.0363 (R2=0.8332±0.133) all individuals. The type of growth for all individuals, females, and males were isometric growth (p>0.05). The average condition factor was found to be 1.032±0.012 (0.480-1.259) for all individuals, 1.055±0.014 (0.707-1.259) for females, and 0.99±0.020 (0.480-1.217) for males. According to the length-weight relationship and the condition factor of the A. sellal population from Güçlükonak to Cizre (Şırnak) location of Tigris River, it can be said that the environment is ecologically sufficient for nutritional development.

Keywords

• Growth
• sellal bleak
• nutrition
• performance

Dicle Nehri’ndeki (Şırnak-Türkiye) Alburnus sellal Heckel, 1843 Populasyonunun Boy-Ağırlık İlişkisi ve Kondisyon Faktörü

Abstract

Bu çalışmada Dicle Nehri’nin Güçlükonak ile Cizre arasındaki Mevkiinde (Şırnak) Ocak 2015 ile Aralık 2015 tarihleri arasında yakalanan Alburnus sellal bireylerinin boy-ağırlık ilişkisi ile kondisyon faktörü araştırılmıştır. İncelenen 107 adet A. sellal bireyinin boy-ağırlık ilişkisi dişilerde W=0.0129*L2.925 (R2=0.8803±0.115), erkeklerde W=0.0076*L3.0908 (R2=0.7033±0.151) ve tüm bireyler için W=0.0092*L3.0363 (R2=0.8332±0.133) olarak hesaplanmıştır. Dişi, erkek ve tüm bireylerde izometrik büyüme gösterdiği belirlenmiştir (t-testi, p>0.05). Ortalama kondisyon faktörü tüm bireylerde 1.032±0.012 (0.480-1.259), dişilerde 1.055±0.014 (0.707-1.259) ve erkeklerde 0.99±0.020 (0.480-1.217) olarak tespit edilmiştir. Dicle Nehri'nin Güçlükonak'tan Cizre (Şırnak) mevkiine kadar olan bölgeden yakalanan A. sellal'in boy-ağırlık ilişkisi ve kondisyon faktörüne göre ortamın ekolojik açıdan besleme gelişimi için yeterli olduğu söylenebilir.

Keywords

• Büyüme
• inci balığı
• beslenme
• verim

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