Altınkaya Baraj Gölü ve Bafra Balık Gölleri’nden Örneklenmiş Olan Sazan Balığı (Cyprinus carpio L., 1758)’ nın Otolit Şekil ve Biyometrisindeki Varyasyonlar

Year 2022, Volume: 12 Issue: 2, 1041 - 1053, 15.12.2022

Aykut Aydın Melek Özpiçak Semra Saygın Enes Hançer Savaş Yılmaz Nazmi Polat

https://doi.org/10.31466/kfbd.1094460

Abstract

Bu çalışmanın amacı; Samsun ilindeki Altınkaya Baraj Gölü (ABG) ve Bafra Balık Gölleri (BBG)’nden elde edilen Cyprinus carpio örneklerinin otolitlerinin morfometrik özellikleri, otolit özellikleri-balık boyu arasındaki ilişkileri ve otolit şekil indekslerinin analiz edilerek lokaliteler arasındaki varyasyonların saptanmasıdır. Gerçekleştirilen analizlerde toplamda 109 (Altınkaya Baraj Gölü (N=59) ve Bafra Balık Gölleri’nde (N=50)) birey değerlendirilmiştir. İki lokalite için de otolit özelliklerinin belirlenmesi amacıyla asteriskusların otolit boyu (OB), otolit yüksekliği (OY), otolit alanı (OA), otolit çevresi (OÇ) ve otolit ağırlığı (OW) parametreleri ölçülmüş, total boy ile olan ilişkileri ortaya çıkarılmıştır. Regresyon analizi sonuçlarına göre, otolit değişkenleri ile total boy arasındaki ilişkiler oldukça önemli çıkmıştır (P˂0,001). ABG populasyonunda TB-OW (r2>0,633), BBG’de ise TB-OÇ (r2>0,945) arasındaki ilişki diğer ilişkilerinden daha kuvvetli olarak belirlenmiştir. ABG ve BBG populasyonları için şekil faktörü, yuvarlaklık, dairesellik, dikdörtgensellik, ovallik ve boy-yükseklik oranı indeksleri ayrı ayrı hesaplanmıştır. ABG ve BBG populasyonlarının otolit şekil indekslerini karşılaştırdığımızda yapılan analizler sonucunda; şekil faktörü (P<0,001), yuvarlaklık (P<0,05) ve dairesellik (P<0,001) ölçümlerinin önemli derecede farklı olduğu tespit edilmiştir. Ancak dikdörtgensellik, ovallik ve boy-yükseklik oranı ölçümlerinde fark bulunmamıştır. Bu çalışma Altınkaya Baraj Gölü ve Bafra Balık Gölleri’nden örneklenen sazan balığının otolit özelliklerinin incelendiği ilk çalışma olma niteliğindedir.

Keywords

Cyprinus carpio, otolit, şekil indeksleri, morfometri

Supporting Institution

ONDOKUZ MAYIS ÜNİVERSİTESİ PROJE YÖNBETİM OFİSİ

Project Number

PYO.FEN.1901.17.003

Thanks

Bu çalışma Ondokuz Mayıs Üniversitesi BAP birimi tarafından PYO.FEN.1901.17.003 proje numarası ile desteklenmiştir. Desteklerinden dolayı Ondokuz Mayıs Üniversitesi Bilimsel Araştırma Projeleri birimine teşekkür ederiz.

Variations in Otolith Shape and Biometry of Common Carp (Cyprinus carpio L., 1758) Sampled from Altınkaya Dam Lake and Bafra Fish Lakes

Abstract

The aim of this study is to determine the variations between localities by analyzing the otolith morphometry, otolith morphometrics-fish length relationships and otolith shape indices of Cyprinus carpio samples obtained from Altınkaya Dam Lake (ABG) and Bafra Fish Lakes (BBG) in Samsun Province. A total of 109 (Altınkaya Dam Lake (N=59) and Bafra Fish Lakes (N=50)) individuals In the, were evaluated in the analyses. In order to determine the otolith characteristics for both localities, the otolith length (OL), otolith height (OH), otolith area (OA), otolith perimeter (OP) and otolith weight (OW) parameters of the asteriscus were measured, and relationships between the total length was determined. According to the results of the regression analysis, the relationships between otolith charachteristics and total length were significantly important (P˂0.001). The relationship between TB-OW (r2>0.633) in the ABG population and TB-OP (r2>0.945) in BBG was determined to be stronger than the other relationships. Form factor, roundness, circularity, rectangularity, ellipticity and aspect ratio indices were calculated separately for ABG and BBG populations. As a result of the analyzes made when we compared the otolith shape indices of ABG and BBG populations; shape factor (P<0.001), roundness (P<0.05) and circularity (P<0.001) measurements were found to be significantly different. However, no difference was found in the measurements of rectangularity, ellipticity and aspect ratio. This is the first study to examine the otolith characteristics of comman carp sampled from Altınkaya Dam Lake and Bafra Fish Lakes.

Keywords

Cyprinus carpio, otolith, shape indices, morphometry

Project Number

PYO.FEN.1901.17.003

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