Orta Karadeniz’den Yakalanan Kurbağa Balığının (Uranoscopus scaber) Bazı Popülasyon Parametreleri

Abstract

Bu çalışmada, Orta Karadeniz Yason Burnu’nda yayılış gösteren Uranoscopus scaber türünün boy-boy ve boy-ağırlık ilişkileri ile kondisyon faktörü değerlerinin belirlenmesi amaçlanmıştır. Çalışma kapsamında ağlar yardımıyla yakalanan 61 adedi dişi, 51 adedi erkek ve toplamda 112 adet balık bireyi incelenmiştir. Balık bireylerinin standart boy (SL), total boy (TL) ölçümleri ve balık ağırlıkları (W) belirlenmiştir. Erkek ve dişi bireylerin ölçümleri arasında istatistiksel olarak farklıklar (t-test, P<0.05) belirlendiği için değerlendirmeler dişi, erkek ve tüm bireyler için ayrı ayrı gerçekleştirilmiştir. Dişi, erkek ve tüm U. scaber bireylerinin boy-ağırlık ilişkisi denklemler ve korelasyon katsayıları sırasıyla W=0.0099TL3.220 (r²=0.963), W=0.0239TL2.876 (r²=0.953) ve W=0.0142TL3.079 (r²=0.956) olarak belirlenmiştir. U. scaber türünün dişi bireyleri bu habitatta pozitif allometrik bir büyüme gösterirken erkek bireylerinin negatif allometrik bir büyüme gösterdiği belirlenmiştir. U. scaber türünün dişi, erkek ve tüm bireylere ait total boy-standart boy ilişki denklemleri ve korelasyon katsayıları sırasıyla TL=1.2009SL+0.81 (r²=0.992), TL=1.267SL+0.0903 (r²=0.992) ve TL=1.2269SL+0.5198 (r²=0.992) olarak belirlenmiştir. Dişi, erkek ve tüm U. scaber bireylerinin ortalama kondisyon faktörü değerleri sırasıyla 1.7979±0.0255, 1.7340±0.0257 ve 1.7688±0.0183 olarak hesaplanmıştır. Belirlenen parametreler U. scaber'ın Orta Karadeniz'deki Jason Burnu popülasyonu için ilk verilerdir.

Keywords

• Uranoscopus scaber
• Boy-ağırlık ilişkisi
• Popülasyon Parametreleri
• Boy-boy ilişkisi
• Kondisyon faktörü

Some Population Parameters of Stargazer (Uranoscopus scaber) Caught from the Central Black Sea

Abstract

In this study, it was aimed to determine the length-length, length-weight relationships and condition factor values of the Uranoscopus scaber, which is distributed in the Cape Jason from the Central Black Sea. Within the scope of the study, a total of 112 fish individuals, 61 females and 51 males, caught using nets were examined. Standard length (SL), total length (TL) measurements and fish weights (W) of fish individuals were determined. Since statistical differences (t-test, P<0.05) were determined between the measurements of male and female individuals, evaluations were carried out separately for females, males and all individuals. The length-weight relationship equations and correlation coefficients of female, male and all U. scaber individuals are W=0.0099TL3.220 (r²=0.963), W=0.0239TL2.876 (r²=0.953), and W=0.0142TL3.079 (r²=0.956) respectively. It was determined that female individuals of the U. scaber showed a positive allometric growth in this habitat, while male individuals showed a negative allometric growth. Total length-standard lengtht relationship equations and correlation coefficients of female, male and all individuals of U. scaber are TL=1.2009SL+0.81 (r²=0.992), TL=1.267SL+0.0903 (r²=0.992), and TL=1.2269SL+0.5198 (r²=0.992), respectively. The average condition factor values of female, male and all U. scaber individuals were calculated as 1.7979±0.0255, 1.7340±0.0257, and 1.7688±0.0183, respectively. The determined parameters are the first data for the Cape Jason population of U. scaber in the Central Black Sea.

Keywords

• Uranoscopus scaber
• Length-weight relationship
• Population Parameters
• Length-length relationship
• Condition factor

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