Bu çalışmada, çipura (Sparûs aurata L) yumurtalarının bölünme ve embriyonik safha gelişimleri incelenmiştir. Denemeler 18.5°C sıcaklıkta yapılmıştır. Yumurtaların ve yağ damlalarının ortalama çapları sırasıyla 1.001 ±0.005 mm ve 0.217±0.001 mm olarak tespit edilmiştir. Yumurtalardaki embriyolojik gelişimleri erken gelişim safhalarında 15 dakikada sonrasında ise saatte bir gözlenmiştir. Ayrıca temel morfolojik gelişim farklılıkları ayrıntılı fotoğraflar ile belirlenmiştir. Açılım oranı, 18.5°C de %84 ve %89 aralığında tespit edilmiştir. Larvalar bu sıcaklıkta 53:00 saatte yumurtadan çıkmışlardır.
The cleavage and embryonic-phase of gilthead sea bream (Sparus aurata L.) eggs has been investigated. The experiments have been carried out at 18.5°C. The average diameters of eggs and oil globule were determined approximately 1.001±0.005 mm and 0.217±0.001 mm, respectively. Embryonic development was observed every fifteen minutes until morula stage and then hourly interval. Also basic morphological development changes were examined by detailed photographs. The hatching rates were determined between 84% and 89% at 18.5°C. Hatching of larvae took 53:00 hours at this temperature.
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