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Turkish Journal Of Veterinary Sciences, vol.27, pp.1383-1389, 2003 (SCI-Expanded)
Özet: Bu çal›flmada Yumurtal›k Koyu’ndaki eksi bal›klar›n›n (Leiognathus klunzingeri) üreme özelliklerini belirlemek amac›yla, Ekim
1997-Eylül 1998 tarihleri aras›nda ayl›k örnekleme yoluyla elde edilen 430 adet birey incelenmifltir. Ortalama Gonadosomatik ‹ndeks
(GSI) ve Fulton’un Kondisyon Faktörü (K) de¤erlerinin ayl›k de¤iflimlerinden, bu bal›klar›n üremelerini Temmuz’dan Eylül’e kadar
olan dönemde gerçeklefltirdikleri; ilk efleysel olgunluk boyunun erkeklerde 5,8 cm iken, diflilerde 5,5 cm oldu¤u; olgun yumurta
çaplar›n›n 0,8-1,0 mm aras›nda ve y›ll›k ortalama yumurta verimliliklerinin (Fekondite) ise, 2789 ± 2109 oldu¤u saptanm›flt›r.
Anahtar Sözcükler: Eksi bal›¤› (Leiognathus klunzingeri), üreme, gonadosomatik indeks (GSI), Fulton’un kondisyon faktörü (K)
Reproduction of the Silverbelly (Leiognathus klunzingeri Steindachner, 1898) in
Yumurtal›k Bight (Adana), Turkey
Abstract: This present study was performed to identify reproductive peculiarities of the silverbelly (Leiognathus klunzingeri) in
Yumurtal›k Bight. For this purpose, 430 individuals were obtained by monthly sampling between October 1997 and September
1998 and then they were examined. By using the monthly changes in the mean values of the Gonadosomatic Index (GSI) and Fulton’s
Condition Factor (K), we found that reproduction period occurred between July and September, length at first maturity was 5.8 cm
and 5.5 cm for males and females, respectively, egg diameter was between 0.8 and 1.0 mm and mean annual fecundity was 2789
± 2109.
Key Words: Silverbelly (Leiognathus klunzingeri), reproduction, gonadosomatic index (GSI), Fulton’s condition factor (K),