Occurrence of a rare shark, Oxynotus centrina (Chondrichthyes: Oxynotidae), from Saros Bay, North Aegean Sea, Turkey

Occurrence of a rare shark, Oxynotus centrina (Chondrichthyes: Oxynotidae), from Saros Bay, North Aegean Sea, Turkey

Cahide Çiğdem Yığın, Ali İşmen, Umur Önal

Faculty of Marine Science and Technology, Çanakkale Onsekiz Mart University, TURKEY

Abstract

A specimen of angular rough shark, Oxynotus centrina was captured on 22 September 2008, in Saros Bay, the North Aegean Sea, Turkey, by a commercial bottom trawl at a depth of 65.5-74.6 m. The captured specimen was a female with a total length of 651 mm and a weight of 4652 g. The ovaries contained a total of 12 asymmetrically distributed (7 and 5 in the right and left ovary, respectively) developing oocytes ranging from 25 to 30 mm in diameter.

Keywords: Angular rough shark, morphometric measurements, Saros Bay