Recent findings of rare sharks, Squatina oculata Bonaparte, 1840 and Squatina squatina (Linnaeus, 1758) from Gökçeada Island, Northern Aegean Sea, Turkey

Recent findings of rare sharks, Squatina oculata Bonaparte, 1840 and Squatina squatina (Linnaeus, 1758) from Gökçeada Island, Northern Aegean Sea, Turkey

Cahide Çiğdem Yığın, Ali İşmen, Burak Daban, Koray Cabbar, Umur Önal 

Faculty of Marine Science and Technology Çanakkale Onsekiz Mart University, 17100, Çanakkale, TURKEY

Abstract

Two species of cartilaginous fish, Squatina oculata Cuvier, 1829 and Squatina squatina (Linnaeus, 1758) were captured by a commercial bottom trawler at a depth of 110 m off Gökçeada Island, Northern Aegean Sea on 22 March 2018. S. oculata was a female specimen with a total length of 875 mm and a weight of 5.536 g. It contained a total of 6 symmetrically distributed developing oocytes ranging from 52.22 to 59.55 mm in diameter. S. squatina was a male specimen with a total length 915 mm and a weight of 6.294 g.

Keywords: Squatinidae, smoothback angelshark, angelshark, Aegean Sea

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