Otolith Shape Analysis and Otolith Morphometry of Bogue Boops boops (Linnaeus, 1758) in the Aegean Sea and the Marmara Sea

Yusuf Şen; İsmail Burak Daban; Mukadder Arslan İhsanoğlu; Oğuzhan Ayaz; Uğur Özekinci

Makale detayları

Otolith Shape Analysis and Otolith Morphometry of Bogue Boops boops (Linnaeus, 1758) in the Aegean Sea and the Marmara Sea

Yazarlar:

Yusuf Şen | İsmail Burak Daban | Mukadder Arslan İhsanoğlu | Oğuzhan Ayaz | Uğur Özekinci

Yayıncı:

Çanakkale Onsekiz Mart University

Ana Başlıklar:

Balık Biyolojisi

Dergi:

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries Vol.8 Issue 1, pp.32-40

Belge Tipi:

Makale

Yayın Tarihi:

7/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001354697

pISSN:

2651-5326

Anahtar kelimeler:

Özet:

 In the present study, otolith shape indices and some otolith morphometric characteristics in the left and right sagittal otoliths were identified and compared for Boops boops in the Aegean Sea and the Marmara Sea. Otoliths of Boops boops from 244 individuals in the North of Aegean Sea and 188 individuals from the Southwest of Marmara Sea were analyzed during the 2024 fishing season. The total length-otolith dimensions relationships were evaluated, the best fit was obtained between total length and otolith perimeter in the Marmara Sea and Aegean Sea, while the least fit was obtained among total length and otolith area of right otoliths, total length and otolith length of left otoliths in the Aegean Sea and Marmara Sea. Some similarities of Boops boops stocks were found with shape indices and otolith morphometry between the Aegean Sea and Marmara Sea. The otolith area and circularity of the left otolith, roundness and rectangularity of the right otolith, form factor of left and right otolith were significantly different p0.05. Principle Component Analysis may explain these differences as arising from variations in the roundness, otolith area and otolith width. Also, Canonical Discriminant Analysis demonstrated significant discrimination of otoliths between the Aegean Sea and the Marmara Sea p0.05, and 56.6 of the originally grouped cases were correctly classified. Based on the results of this study, two stocks of Boops boops in the North of Aegean Sea and the Southwest of Marmara Sea might be different. Howewer, more detailed studies are required the determine whether this species constitues the same stock in these areas.

 In the present study, otolith shape indices and some otolith morphometric characteristics in the left and right sagittal otoliths were identified and compared for Boops boops in the Aegean Sea and the Marmara Sea. Otoliths of Boops boops from 244 individuals in the North of Aegean Sea and 188 individuals from the Southwest of Marmara Sea were analyzed during the 2024 fishing season. The total length-otolith dimensions relationships were evaluated, the best fit was obtained between total length and otolith perimeter in the Marmara Sea and Aegean Sea, while the least fit was obtained among total length and otolith area of right otoliths, total length and otolith length of left otoliths in the Aegean Sea and Marmara Sea. Some similarities of Boops boops stocks were found with shape indices and otolith morphometry between the Aegean Sea and Marmara Sea. The otolith area and circularity of the left otolith, roundness and rectangularity of the right otolith, form factor of left and right otolith were significantly different p0.05. Principle Component Analysis may explain these differences as arising from variations in the roundness, otolith area and otolith width. Also, Canonical Discriminant Analysis demonstrated significant discrimination of otoliths between the Aegean Sea and the Marmara Sea p0.05, and 56.6 of the originally grouped cases were correctly classified. Based on the results of this study, two stocks of Boops boops in the North of Aegean Sea and the Southwest of Marmara Sea might be different. Howewer, more detailed studies are required the determine whether this species constitues the same stock in these areas.

 In the present study, otolith shape indices and some otolith morphometric characteristics in the left and right sagittal otoliths were identified and compared for Boops boops in the Aegean Sea and the Marmara Sea. Otoliths of Boops boops from 244 individuals in the North of Aegean Sea and 188 individuals from the Southwest of Marmara Sea were analyzed during the 2024 fishing season. The total length-otolith dimensions relationships were evaluated, the best fit was obtained between total length and otolith perimeter in the Marmara Sea and Aegean Sea, while the least fit was obtained among total length and otolith area of right otoliths, total length and otolith length of left otoliths in the Aegean Sea and Marmara Sea. Some similarities of Boops boops stocks were found with shape indices and otolith morphometry between the Aegean Sea and Marmara Sea. The otolith area and circularity of the left otolith, roundness and rectangularity of the right otolith, form factor of left and right otolith were significantly different p0.05. Principle Component Analysis may explain these differences as arising from variations in the roundness, otolith area and otolith width. Also, Canonical Discriminant Analysis demonstrated significant discrimination of otoliths between the Aegean Sea and the Marmara Sea p0.05, and 56.6 of the originally grouped cases were correctly classified. Based on the results of this study, two stocks of Boops boops in the North of Aegean Sea and the Southwest of Marmara Sea might be different. Howewer, more detailed studies are required the determine whether this species constitues the same stock in these areas.

 Bu çalışmada, Ege Denizi ve Marmara Denizinde Boops boopsun otolit şekil indeksleri ile bazı otolit morfometrisi özellikleri sağ ve sol sagittal otolitlerinde tanımlanmış ve karşılaştırılmıştır. 2024 balıkçılık sezonunda Ege Denizinin kuzeyinden 244 birey ile Marmara Denizinin güneybatısından 188 bireyin otolitleri analiz edilmiştir. Toplam boy-otolit boyutları ilişkileri değerlendirildiğinde, Marmara Denizi ve Ege Denizinde toplam boy ile otolit çevresi arasında en iyi uyum sağlanırken, Marmara Denizi ve Ege Denizinde toplam boy ile sağ otolitlerin otolit alanı ile toplam boy ile sol otolitlerin otolit boyu arasında en düşük uyum sağlanmıştır. Boops boops stokları arasında Ege Denizi ve Marmara Denizinde otolit şekil indeksleri ve otolit morfometrisi açısından bazı benzerlikler bulunmuştur. Sol otolitin alanı ve daireselliği, sağ otolitin yuvarlaklığı ve dikdörtgenselliği, sol ve sağ otolitin form faktörü açısından anlamlı farklılıklar göstermiştir p0,05. Temel Bileşen Analizi, bu denizlerdeki farklılıkların yuvarlaklık, otolit alanı ve otolit genişliğinden kaynaklandığını açıklayabilir. Ayrıca, Kanonik Ayırım Analizi, Ege Denizi ile Marmara Denizi arasında otolitlerin anlamlı şekilde ayırt edilebildiğini p0,05 ve gruplandırılan örneklerin 56,6sının doğru şekilde sınıflandırıldığını ortaya koymuştur. Bu çalışmanın sonuçlarına göre, Ege Denizinin kuzeyindeki ve Marmara Denizinin güneybatısındaki iki Boops boops stoğunun farklı olabileceği düşünülmektedir. Fakat bu türün, bu denizlerde aynı stok olup olmadığının incelenmesini içeren daha ayrıntılı çalışmalar gerekmektedir.

Makale detayları

Otolith Shape Analysis and Otolith Morphometry of Bogue Boops boops (Linnaeus, 1758) in the Aegean Sea and the Marmara Sea

Yazarlar:

Yusuf Şen | İsmail Burak Daban | Mukadder Arslan İhsanoğlu | Oğuzhan Ayaz | Uğur Özekinci

Yayıncı:

Çanakkale Onsekiz Mart University

Ana Başlıklar:

Balık Biyolojisi

Dergi:

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries Vol.8 Issue 1, pp.32-40

Belge Tipi:

Makale

Yayın Tarihi:

7/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001354697

pISSN:

2651-5326

Otolith shape indices

Stock discrimination

Çanakkale Strait

Otolith dimensions

Sagittal otolithotolit şekil indeksi

Stok ayrımı

Çanakkale Boğazı

Otolit boyutları

sagittal otolit

Sayı

Makale detayları

Yazarlar: Yusuf Şen | İsmail Burak Daban | Mukadder Arslan İhsanoğlu | Oğuzhan Ayaz | Uğur Özekinci

Yayıncı: Çanakkale Onsekiz Mart University

Ana Başlıklar: Balık Biyolojisi

Dergi: Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries Vol.8 Issue 1, pp.32-40

Belge Tipi: Makale

Yayın Tarihi: 7/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001354697

pISSN: 2651-5326

Sayı

Yazarlar:

Yusuf Şen | İsmail Burak Daban | Mukadder Arslan İhsanoğlu | Oğuzhan Ayaz | Uğur Özekinci

Yayıncı:

Çanakkale Onsekiz Mart University

Ana Başlıklar:

Balık Biyolojisi

Dergi:

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries Vol.8 Issue 1, pp.32-40

Belge Tipi:

Makale

Yayın Tarihi:

7/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001354697

pISSN:

2651-5326