Seyhan Gölü’nde (Adana) yaşayan sivrisinek balığı (Gambusia affinis (baird & girard, 1853)) populasyonunun büyüme özelliklerinin belirlenmesi üzerine bir ön araştırma
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Tarih
2008
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info:eu-repo/semantics/openAccess
Özet
Bu çalışmada Seyhan Baraj (Adana) Gölü'nden Ocak 2006-Aralık 2006 tarihleri arasında avlanan 224 sivrisinek balığı Gambusia affinis (Baird & Girard, 1853) populasyonunun büyüme özellikleri incelenmiştir. Populasyonunun yaş dağılımı dişi ve erkekler bireyler için 0+-2+ arasında saptanmıştır. İncelenen bireylerin % 41.72'si (0+), % 38.30'u (1+), % 13.54'ü (2) yaş grubu; % 61.60'ı dişi, % 38.40'ı erkek olarak tespit edilmiştir. Avlanan dişi ve erkek bireylerin total boy (TL) ve total ağırlıkları 1.0-4.0 cm ile 0.01-0.70 g, 1.0-3.30 cm ile 0.05-0.45 g arasında değişmiştir. Boy ağırlık ilişkisi denklemi dişilerde W=0.0169L2.626 R2=0.908, erkeklerde W=0.0190L2.474 R2=0.893 olarak tespit edilmiştir. Sivrisinek populasyonunun ortalama kondisyon faktörü dişilerde 1.3085 ±0.047, erkeklerde 1.2588 ±0.072, dişi+erkeklerde bireylerde ise 1.2894 ±0.040 olarak saptanmıştır
In this study, 224 mosquitofish Gambusia affinis (Baird & Girard, 1853) were caught in Seyhan Dam Lake (Adana) between January 2006 and December 2006 and the growth parameters were investigated. The ages of females and males respectively ranged between 0-2 age groups. In the mosquitofish population, the (0+) aged group comprised 41.72%, the (1+) aged group 38.30% and the (2) age group 13.54%; the proportin of females was 61.60%, and that of males 38.40% The population was composed of 61.60% females and 38.40% males. The total lengths and weights of females and males individuals caught varied from, 1.0 to 4.0 cm and 0.01 to 0.70 g, 1.0 to 3.3 cm and 0.05 to 0.45 g, repectively. The length-weight relation was determined W=0.0169L2.626 R2 =0.908 for females, and W=0.0190L2.474 R2 =0.893 for males. The average condition factor was determined 1.3085 ±0.047 for females, 1.2588 ±0.072 for males, and 1.2894 ±0.040 both of sex combined.
In this study, 224 mosquitofish Gambusia affinis (Baird & Girard, 1853) were caught in Seyhan Dam Lake (Adana) between January 2006 and December 2006 and the growth parameters were investigated. The ages of females and males respectively ranged between 0-2 age groups. In the mosquitofish population, the (0+) aged group comprised 41.72%, the (1+) aged group 38.30% and the (2) age group 13.54%; the proportin of females was 61.60%, and that of males 38.40% The population was composed of 61.60% females and 38.40% males. The total lengths and weights of females and males individuals caught varied from, 1.0 to 4.0 cm and 0.01 to 0.70 g, 1.0 to 3.3 cm and 0.05 to 0.45 g, repectively. The length-weight relation was determined W=0.0169L2.626 R2 =0.908 for females, and W=0.0190L2.474 R2 =0.893 for males. The average condition factor was determined 1.3085 ±0.047 for females, 1.2588 ±0.072 for males, and 1.2894 ±0.040 both of sex combined.
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Journal of FisheriesSciences.com
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2
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4
