First Record of the Little Gulper Shark, Centrophorus uyato (Rafinesque, 1810), in the Turkish Marine Waters of the North Aegean Sea

Ece Yalçın; Kağan Kocakale; Yunus Gönül; Nur Bikem Kesici; Onur Gönülal; Cem Dalyan

Makale detayları

First Record of the Little Gulper Shark, Centrophorus uyato (Rafinesque, 1810), in the Turkish Marine Waters of the North Aegean Sea

Yazarlar:

Ece Yalçın | Kağan Kocakale | Yunus Gönül | Nur Bikem Kesici | Onur Gönülal | Cem Dalyan

Yayıncı:

Istanbul University

Ana Başlıklar:

Hydrobiology

Dergi:

Turkish Journal of Bioscience and Collections Vol.7 Issue 1, pp.11-19

Belge Tipi:

Makale

Yayın Tarihi:

6/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001284965

pISSN:

2602-4292

Anahtar kelimeler:

Özet:

 Objective: Gulper sharks, are small to medium-sized benthopelagic deep-water sharks that occur worldwide along the outer continental shelves and upper continental and insular slopes. Centrophorus uyato Rafinesque, 1810 is a rare species that has only been recorded twice in Turkish marine waters. Our study provides the first record of the species in the Turkish waters of the North Aegean Sea and the third record from the Turkish waters. Materials and Methods: In April 2019, the male specimen of C. uyato was caught at 401 m with trawl commercial fish vessels. The little gulper shark, C. uyato was collected off the Gökçeada coasts, North Aegean Sea. Measurements of the caught specimen are provided and the geographical distribution of the C. uyato in the Mediterranean Sea is documented. Results: The male specimen of C. uyato was caught off the coasts of Gökçeada. It was measured as 775 mm in total length and weighed 3040 g in total weight. Conclusion: In the Turkish marine waters of the Mediterranean Sea, data on the species is lacking because it is hard to find the genus. Their K-selected life strategy makes them vulnerable, so in the Mediterranean region, they have a declining trend. Therefore, identifying the species across its distribution range is an important step for future conservation efforts.

 Objective: Gulper sharks, are small to medium-sized benthopelagic deep-water sharks that occur worldwide along the outer continental shelves and upper continental and insular slopes. Centrophorus uyato Rafinesque, 1810 is a rare species that has only been recorded twice in Turkish marine waters. Our study provides the first record of the species in the Turkish waters of the North Aegean Sea and the third record from the Turkish waters. Materials and Methods: In April 2019, the male specimen of C. uyato was caught at 401 m with trawl commercial fish vessels. The little gulper shark, C. uyato was collected off the Gökçeada coasts, North Aegean Sea. Measurements of the caught specimen are provided and the geographical distribution of the C. uyato in the Mediterranean Sea is documented. Results: The male specimen of C. uyato was caught off the coasts of Gökçeada. It was measured as 775 mm in total length and weighed 3040 g in total weight. Conclusion: In the Turkish marine waters of the Mediterranean Sea, data on the species is lacking because it is hard to find the genus. Their K-selected life strategy makes them vulnerable, so in the Mediterranean region, they have a declining trend. Therefore, identifying the species across its distribution range is an important step for future conservation efforts.

 Objective: Gulper sharks, are small to medium-sized benthopelagic deep-water sharks that occur worldwide along the outer continental shelves and upper continental and insular slopes. Centrophorus uyato Rafinesque, 1810 is a rare species that has only been recorded twice in Turkish marine waters. Our study provides the first record of the species in the Turkish waters of the North Aegean Sea and the third record from the Turkish waters. Materials and Methods: In April 2019, the male specimen of C. uyato was caught at 401 m with trawl commercial fish vessels. The little gulper shark, C. uyato was collected off the Gökçeada coasts, North Aegean Sea. Measurements of the caught specimen are provided and the geographical distribution of the C. uyato in the Mediterranean Sea is documented. Results: The male specimen of C. uyato was caught off the coasts of Gökçeada. It was measured as 775 mm in total length and weighed 3040 g in total weight. Conclusion: In the Turkish marine waters of the Mediterranean Sea, data on the species is lacking because it is hard to find the genus. Their K-selected life strategy makes them vulnerable, so in the Mediterranean region, they have a declining trend. Therefore, identifying the species across its distribution range is an important step for future conservation efforts.

 Centrophoridae ailesine ait olan Centrophorus uyato Rafinesque, 1810 dünya çapında dış kıta sahanlıkları ile üst kıta ve ada yamaçları boyunca bulunan, küçük-orta boyutlu bir derin su köpek balığıdır. Kuzey Ege Denizinin Gökçeada sahilinde C. uyato türüne ait bir adet erkek birey yakalandı. Gökçeada, Kuzey Ege Denizinde 401749,56-401747,40N; 245345,84-255254,60E yer almaktadır ve C. uyato örneğimiz 401 m derinlikte Nisan 2019da Gökçeadadan elde edilmiştir. Örneğimiz 77.5 cm uzunluğunda ve 3040 g ağırlığındadır. C. uyato aynı genusa sahip diğer bir tür olan C. granulosusdan farklı özellikler göstermektedir; C. uyato türünde dorsal yüzgeçlerde siyah leke vardır ve pelvik yüzgeç kaidesinin bitiminden ikinci dorsal yüzgeç başlamaktadır. Bu makale, türün Kuzey Ege Denizinin Türkiye suları için ilk kaydını ve Türkiye suları için ikinci kaydını temsil etmektedir. Yakalanan örneğin ölçümleri verilmiş olmakla beraber C. uyatonun Akdenizdeki coğrafi dağılımı belgelenmiştir.

Makale detayları

First Record of the Little Gulper Shark, Centrophorus uyato (Rafinesque, 1810), in the Turkish Marine Waters of the North Aegean Sea

Yazarlar:

Ece Yalçın | Kağan Kocakale | Yunus Gönül | Nur Bikem Kesici | Onur Gönülal | Cem Dalyan

Yayıncı:

Istanbul University

Ana Başlıklar:

Hydrobiology

Dergi:

Turkish Journal of Bioscience and Collections Vol.7 Issue 1, pp.11-19

Belge Tipi:

Makale

Yayın Tarihi:

6/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001284965

pISSN:

2602-4292

First record

North Aegean Sea

Gökçeada

Centrophorus uyato

Centrophoridae

İlk kayıt

Kuzey Ege Denizi

Gökçeada

Centrophorus uyato

Centrophoridae

Sayı

Makale detayları

Yazarlar: Ece Yalçın | Kağan Kocakale | Yunus Gönül | Nur Bikem Kesici | Onur Gönülal | Cem Dalyan

Yayıncı: Istanbul University

Ana Başlıklar: Hydrobiology

Dergi: Turkish Journal of Bioscience and Collections Vol.7 Issue 1, pp.11-19

Belge Tipi: Makale

Yayın Tarihi: 6/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001284965

pISSN: 2602-4292

Sayı

Yazarlar:

Ece Yalçın | Kağan Kocakale | Yunus Gönül | Nur Bikem Kesici | Onur Gönülal | Cem Dalyan

Yayıncı:

Istanbul University

Ana Başlıklar:

Hydrobiology

Dergi:

Turkish Journal of Bioscience and Collections Vol.7 Issue 1, pp.11-19

Belge Tipi:

Makale

Yayın Tarihi:

6/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001284965

pISSN:

2602-4292