Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea)

Koray Cabbar; Cahide Çiğdem Yığın

doi:10.12714/egejfas.40.2.04

TR EN

Gökçeada (Kuzey Ege Denizi) çevresindeki iki vatoz türünün, Raja miraletus Linnaeus, 1758 ve Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae) beslenme alışkanlıkları

Öz

Bu çalışmada Raja miraletus Linnaeus, 1758 ve Dipturus oxyrinchus'un (Linnaeus, 1758) beslenme alışkanlıkları incelenmiştir. Bu çalışmanın amacı doğrultusunda, Şubat 2019-Şubat 2020 tarihleri arasında Kuzey Ege'de Gökçeada ve çevresinde faaliyet gösteren ticari trol teknelerinden aylık olarak numuneler alınmıştır. Toplam 29 (24 dişi ve 5 erkek) kahverengi vatoz (Raja miraletus) ve 36 (20 dişi ve 16 erkek) sivriburun vatoz (Dipturus oxyrinchus) avlandı. R. miraletus örneklerinin total boyları 24,0 cm ile 53,9 cm arasında, D. oxyrinchus örneklerinin ise 17,1 cm ile 85,0 cm aralığında ölçülmüştür. R. miraletus ve D. oxyrinchus örneklerinin toplam boy-ağırlık ilişkileri sırasıyla; W=0,0002TL3,92 (R2=0,97) ve W=0,0007TL3,43 (R2=0,97) olarak hesaplanmıştır. Örneklerin mide içeriği analizi, kabukluların R. miraletus (%IRI = 67.09) için birincil ve en önemli av grubu olduğunu, onları kemikli balıklar (%IRI = 1.00) ve kafadan bacaklılar (%IRI = 0,45) takip ettiğini göstermiştir. D. oxyrinchus örneklerinin ise başlıca kabuklularla (%IRI = 74,3), ardından kemikli balıklarla (%IRI = 6,50) ve nematoda (%IRI = 0,40) beslendiği belirlenmiştir.

Anahtar Kelimeler

Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea)

Öz

This study investigated the feeding habits of Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758). For the purpose of this study, the specimens were obtained monthly from the commercial trawlers operating around the Gökçeada Island in the Northern Aegean Sea between February 2019 and February 2020. A total of 29 (24 female and 5 male) brown rays (Raja miraletus) and 36 (20 female and 16 male) longnosed skates (Dipturus oxyrinchus) were captured. The total lengths of the R. miraletus specimens ranged between 24.0 cm and 53.9 cm, while the D. oxyrinchus specimens measured between 17.1 cm and 85.0 cm. Total length-weight relationships of R. miraletus and D. oxyrinchus specimens, respectively; W=0.0002TL3.92 (R2=0.97) and W=0.0007TL3.43 (R2=0.97) were calculated. The analysis of the stomach content of the specimens showed that crustacea were the primary and the most important prey group for R. miraletus (IRI% = 67.09), followed by teleosts (IRI% = 1.00) and cephalopods (IRI% = 0.45). The D. oxyrinchus specimens were determined to primarily feed on crustacea (IRI% = 74.3), followed by teleosts (IRI% = 6.50) and nematoda (IRI% = 0.40).

Anahtar Kelimeler

Destekleyen Kurum

Scientific and Technological Research Council of Türkiye

Proje Numarası

119Y060

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

Balıkçılık Yönetimi

Bölüm

Araştırma Makalesi

Yazarlar

Koray Cabbar ^*
0000-0001-5254-1384
Türkiye

Cahide Çiğdem Yığın
0000-0002-8808-2252
Türkiye

Erken Görünüm Tarihi

10 Haziran 2023

Yayımlanma Tarihi

15 Haziran 2023

Gönderilme Tarihi

31 Ocak 2023

Kabul Tarihi

3 Mayıs 2023

Yayımlandığı Sayı

Yıl 2023 Cilt: 40 Sayı: 2

DOI

https://doi.org/10.12714/egejfas.40.2.04

IZ

https://izlik.org/JA54UJ74SK

Kaynak Göster

RIS / Bibtex

APA

Cabbar, K., & Yığın, C. Ç. (2023). Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea). Ege Journal of Fisheries and Aquatic Sciences, 40(2), 110-117. https://doi.org/10.12714/egejfas.40.2.04

AMA

1.Cabbar K, Yığın CÇ. Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea). EgeJFAS. 2023;40(2):110-117. doi:10.12714/egejfas.40.2.04

Chicago

Cabbar, Koray, ve Cahide Çiğdem Yığın. 2023. “Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea)”. Ege Journal of Fisheries and Aquatic Sciences 40 (2): 110-17. https://doi.org/10.12714/egejfas.40.2.04.

EndNote

Cabbar K, Yığın CÇ (01 Haziran 2023) Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea). Ege Journal of Fisheries and Aquatic Sciences 40 2 110–117.

IEEE

[1]K. Cabbar ve C. Ç. Yığın, “Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea)”, EgeJFAS, c. 40, sy 2, ss. 110–117, Haz. 2023, doi: 10.12714/egejfas.40.2.04.

ISNAD

Cabbar, Koray - Yığın, Cahide Çiğdem. “Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea)”. Ege Journal of Fisheries and Aquatic Sciences 40/2 (01 Haziran 2023): 110-117. https://doi.org/10.12714/egejfas.40.2.04.

JAMA

1.Cabbar K, Yığın CÇ. Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea). EgeJFAS. 2023;40:110–117.

MLA

Cabbar, Koray, ve Cahide Çiğdem Yığın. “Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea)”. Ege Journal of Fisheries and Aquatic Sciences, c. 40, sy 2, Haziran 2023, ss. 110-7, doi:10.12714/egejfas.40.2.04.

Vancouver

1.Koray Cabbar, Cahide Çiğdem Yığın. Feeding habits of two skate species, Raja miraletus Linnaeus, 1758 and Dipturus oxyrinchus (Linnaeus, 1758) (Chondrichthyes, Rajidae), around the Gökçeada Island (Northern Aegean Sea). EgeJFAS. 01 Haziran 2023;40(2):110-7. doi:10.12714/egejfas.40.2.04