Okan ÖZAYDIN, Sencer AKALIN, Zafer TOSUNOĞLU, Semih LEBLEBİCİ, Dilek Uçkun İLHAN

On the growth of the scaldfish Arnoglossus laterna (Walbaum, 1792) from İzmir Bay, central Aegean Sea

Küçük pisi balıkları, Arnoglossus laterna (n = 1892), Ocak 2005-Aralık 2006 tarihleri arasında İzmir Körfezi’nde gerçekleştirilen trol çekimleriyle yakalanmıştır. Örneklerin total boy ve ağırlıkları 3,9 ile 16,0 cm ve 0,47 ile 41,63 g arasında dağılım göstermiştir. Dişi erkek oranı 1:1,91’dir. Dişi, erkek ve tüm bireyler için boy-ağırlık ilişkileri sırasıyla; W= 0,0096 × $L^{2,921}$, W = 0,0111 × $L^{2,857}$ ve W = 0,0096 × $L^{2,917}$, boy ve ağırlığa göre von Bertalanffy büyüme parametreleri; L∞ = 17,58, 15,36 ve 17,19 cm; k = 0,412, 0,461 ve 0,495 $yil^{-1}$; $t _0$ = –0,379, –0,332 ve –0,380 yıl olarak hesaplanmıştır. Büyüme performans indeks değerleri (Φ´) ise; 2,105, 2,036 ve 2,165 olarak bulunmuştur.

İzmir Körfezi’ndeki (Ege Denizi) küçük pisi balığının (Arnoglossus laterna (Walbaum, 1792)) büyüme özellikleri üzerine

Scaldfish (Arnoglossus laterna) (n = 1892) were caught in İzmir Bay (Aegean Sea) from January 2005 to December 2006. Total length and weight of all specimens ranged from 3.9 to 16.0 cm and from 0.47 to 41.63 g, respectively. The overall ratio of females to males was 1:1.91. The length-weight relationships for females, males, and all specimens combined were estimated, respectively, as W = 0.0096 × $L^{2.921}$, W = 0.0111 × $L^{2.857}$, and W = 0.0096 × $L^{2.917}$; and the parameters of the von Bertalanffy growth equations were, respectively, L∞= 17.58, 15.36, and 17.19 cm; k = 0.412, 0.461, and 0.495 $year^{-1}$; and $t _0$ = –0.379, –0.332, and –0.380 year. The growth performance index values (Φ´) were 2.105, 2.036, and 2.165, respectively.

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