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TÖDÜRGE GÖLÜ (ZARA/SİVAS) SQUALIUS CEPHALUS (L.) X ALBURNUS CHALCOIDES (G.) DOĞAL HİBRİTLERİNİN BÜYÜME ÖZELLİKLER

GROWTH PROPERTIES OF NATURAL HYBRIDS, SQUALIUS CEPHALUS (L.) X ALBURNUS CHALCOIDES (G.) IN LAKE TÖDÜRGE (ZARA/SİVAS)

Journal Name:

  • İstanbul Üniversitesi Su Ürünleri Dergisi

Publication Year:

  • 2009

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In present study, the age, sex, length and weight distributions, age-length, ageweight, length-weight relationships, and mean condition values of intergeneric cyprinid hybrids of Squalius cephalus x Alburnus chalcoides, caught from Tödürge Lake, were determined. The ages distributed between I-III. The hybrid specimens were consisted of 65% female, 35% male. Fork length and body weight were changed from 123 to 217 mm and from 16.6 to 125.0 g, respectively. There were statistically significant differences among the mean values of the fork length and body weight in all age groups. Length-weight relationships were estimated to be W=0.0025 L 3.5742 for females, and W=0.0017 L 3.7224 for males. Mean condition value was calculated as 1.09-1.29. It was understood that the hybrid specimens were growth faster than both S. cephalus and A. chalcoides. It may be accepted as an indicator for heterosis in hybrid specimens.
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Abstract (Original Language): 
Bu çalısmada Tödürge Gölü’nden yakalanan Squalius cephalus x Alburnus chalcoides intergenerik doğal cyprinid hibritlerinin yas, esey, boy ve ağırlık dağılımları, yas-boy, yas-ağırlık ve boy-ağırlık iliskileri ile yıllık ve oransal boy ve ağırlık artısları, disi ve erkek bireylerin yas gruplarına göre ortalama kondisyon değerleri belirlenmistir. I ile III yasları arasında dağılım gösteren hibrit bireylerin % 65’inin disi, % 35’inin erkek olduğu belirlenmistir. Çatal boyları 123- 217 mm, vücut ağırlıkları 16.6-125.0 g arasında değismistir. Parental türlerle hibrit bireylerin ortalama çatal boy ve vücut ağırlığı değerleri arasındaki farklar bütün yas gruplarında istatistiki açıdan önemli bulunmustur. Boyağırlık iliskisi bağıntıları disiler için W=0.0025 L 3.5742 , erkekler için W=0.0017 L 3.7224 seklinde düzenlenmistir. Ortalama kondisyon değeri 1.09-1.29 arasında hesaplanmıstır. Hibrit bireylerin hem S. cephalus’dan hem de A. chalcoides’den daha hızlı büyüdükleri anlasılmaktadır. Bu olay hibrit bireylerdeki heterosis durumunun bir göstergesi olarak kabul edilebilir.
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  • Turkish

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