ŞÜKRÜ YILDIRIM, DENİZ ÇOBAN, H. Okan KAMACI, CÜNEYT SUZER, Şahin SAKA, Kürşat FIRAT

Skeletal formation of the fins in the common dentex (Dentex dentex L., 1758) under intensive culture condition

Bu çalışmada yoğun kültür koşulları altında sinarit (Dentex dentex) larvalarının erken dönemlerinde dorsal, anal, pelvik ve pektoral yüzgeç gelişimleri kıkırdak ve kemik yapı oluşumlarına göre incelenmiştir. İlk gelişim gösteren yüzgeç, pektoral yüzgeç olup 3,4 mm total boyda (TB) gözlenmiştir. Bu yüzgeci, dorsal yüzgeç (6,1 mm TB), anal yüzgeç (6,2 mm TB) ve pelvik yüzgeç (7,3 mm TB) oluşumları takip etmiştir. Dorsal yüzgeç yumuşak ışınları (R) ilk olarak 7,0 mm TB’da gözlenmiş ve 9,7 mm TB’da oluşum tamamlanmıştır (10–12 R). Dorsal yüzgeç sert ışınları (S) ilk olarak 7,2 mm TB’da gözlenmiş ve 9,9 mm TB’da tüm oluşumlar tamamlanmıştır (9-11 S). Anal yüzgeç sert ve yumuşak ışınları 7,0mm ile 9,0 mm TB arasında gelişim göstermiş ve bu gelişim 9,2 mm TB’da son bulmuştur (3 S ve 7-9 R). Sparide familyası üyesi olan sinarit larvalarının yüzgeç gelişimleri diğer sparide familyası üyelerinin yüzgeç gelişimlerine benzerdir.

Anahtar Kelimeler:

kemikleşme, larva, balık yavrusu, iskelet gelişimi

Sinarit (Dentex dentex L., 1758) larvalarının kültür koşullarında yüzgeç gelişimleri

Osteological development of dorsal, anal, pelvic, and pectoral fins in the common dentex (Dentex dentex) was examined in early stage larvae under intensive culture conditions. The pectoral fin supports started to develop at 3.4 mm total length (TL), followed by those of dorsal fins at 6.1 mm TL, anal fins at 6.2 mm TL and pelvic fins at 7.3 mm TL. Development of dorsal lepidotrichia (R) was firstly observed at 7.0 mm TL and they attained their final number (10-12 R) at 9.7 mm TL. The dorsal spines (S) firstly appeared at 7.2 mm TL and completed all form (9-11 S) at 9.9 mm TL. The anal lepidotrichia appeared during the development phase from 7.0 mm to 9.0 mm TL. They reached their final number (3 S and 7-9 R) at 9.2 mm TL. The pattern of development of fin supports found in D. dentex was almost similar to that described in other Sparid species.

Keywords:

ossification, larvae, fry, skeletal development,

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