Comparative Diplectanum aequans (Monogenea) infestations in cultured European seabass (Dicentrarchus labrax) in the Black Sea and the Aegean Sea

Ahmet Özer; Sevilay Okkay; Türkay Öztürk; Birol Baki; Gökçe Acar; Arzu Güven; Dilara Kaya Öztürk

doi:10.12714/egejfas.2019.36.2.08

TR EN

Karadeniz ve Ege Denizi’ndeki kültür levrek balıklarında (Dicentrarchus labrax) karşılaştırmalı Diplectanum aequans (Monogenea) enfestasyonları

Öz

Bu araştırmada, Karadeniz’in Yakakent ve Ege Denizi’nin Milas kıyılarındaki ağ kafeslerde yetiştiriciliği yapılan Avrupa levrek balığının (Dicentrarchus labrax) solungaçlarındaki monogen parazitlerin neden olduğu enfestasyonlar araştırıldı. Parazitolojik inceleme eş zamanlı olarak Eylül 2014, Şubat ve Nisan 2015 tarihlerinde alınan balık örneklerinde gerçekleştirildi. Yakakent’teki kafeslerden ortalama boyları 19.37 cm olan toplam 100 adet balık incelenirken, Milas’taki kafeslerden ortalama boyları 22.67 cm olan 88 adet balık incelendi. Her iki örnekleme alanından incelenen balık türünde sadece bir monogen parazit olan Diplectanum aequans türünün varlığı belirlendi. Diplectanum aequans türü monogen parazitin enfestasyon oranı (%) ve enfeste balık başına ortalama sayıları Yakakent örneklerinde sırasıyla %89.0 ve 9.6 ± 0.8 olarak belirlenmişken, enfestasyon parametreleri Milas örneklerinde sırasıyla %90.9 ve 13.3 ± 1.2 olarak belirlendi. Her iki örneklem alanından yakalanan balıklarda belirlenen D. aequans enfestasyon oranları (%) arasındaki fark istatistiki olarak önemli bulunmazken, her iki örneklem alanındaki balıklardaki enfeste balık başına ortalama D. aequans değerleri arasındaki fark istatistiki olarak önemli bulundu. Diplectanum aequans türü parazit incelenen balıkların tüm solungaç yapraklarında homojen bir dağılım gösterdi ve enfestasyon parametrelerinde istatistiki bir fark belirlenmedi. Bu araştırma Karadeniz ve Ege Denizi’nde kültürü yapılan Avrupa levrek balığının (D. labrax) solungaçlarındaki D. aequans türü monegen parazit enfestasyonları üzerine gerçekleştirilen ilk karşılaştırma çalışmasıdır.

Anahtar Kelimeler

Diplectanum aequans,Dicentrarchus labrax,Karadeniz,Ege Denizi

Comparative Diplectanum aequans (Monogenea) infestations in cultured European seabass (Dicentrarchus labrax) in the Black Sea and the Aegean Sea

Abstract

In the present study, monogenean infestations were investigated on the gills of the European seabass Dicentrarchus labrax grown in culture cages located at Yakakent coast of the Black Sea and Milas coast of the Aegean Sea. Parasitological investigations were conducted simultaneously at both localities during September 2014, February and April 2015. While a total of 100 fish specimens were examined from Yakakent samples whose average length was 19.37 cm, a total of 88 fish specimens were examined from Milas samples whose length was 22.67 cm in average. Only one monogenean species Diplectanum aequans was recovered from investigated fish specimens at both sampling localities. Infestation prevalence (%) and mean intensity values of D. aequans were 89.0% and 9.6 ± 0.8 in Yakakent samples while those infestation indices were 90.9% and 13.3 ± 1.2 in Milas samples, respectively. The difference between the infestation prevalence (%) values of D. aequans at both sampling localities was not statistically significant, on the other hand, the difference was statistically significant in the mean intensity values at both locations. Diplectanum aequans showed a homogeneous distribution in all gill arches of fish without any statistically significant difference. This is the first comparative study on the infestation of D. aequans on the gills of European sea bass D. labrax cultured in the Black Sea and the Aegean Sea.

Keywords

Diplectanum aequans,Dicentrarchus labrax,Black Sea,Aegean Sea

Thanks

All authors conceived, designed and conducted field and laboratory work. A.Ö. analysed the data and wrote the initial version of the manuscript; all other authors provided editorial advice.

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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Authors

Ahmet Özer ^*
0000-0002-2890-6766
Türkiye

Sevilay Okkay
0000-0003-4440-3525
Türkiye

Türkay Öztürk
0000-0001-5568-3214
Türkiye

Birol Baki
0000-0002-2414-1145
Türkiye

Gökçe Acar
0000-0002-0127-6602
Türkiye

Arzu Güven
0000-0002-8220-5282
Türkiye

Dilara Kaya Öztürk
0000-0003-2505-231X
Türkiye

Publication Date

June 15, 2019

Submission Date

February 22, 2019

Acceptance Date

March 22, 2019

Published in Issue

Year 2019 Volume: 36 Number: 2

DOI

https://doi.org/10.12714/egejfas.2019.36.2.08

IZ

https://izlik.org/JA64WR33GL

Cite

RIS / Bibtex

APA

Özer, A., Okkay, S., Öztürk, T., Baki, B., Acar, G., Güven, A., & Kaya Öztürk, D. (2019). Comparative Diplectanum aequans (Monogenea) infestations in cultured European seabass (Dicentrarchus labrax) in the Black Sea and the Aegean Sea. Ege Journal of Fisheries and Aquatic Sciences, 36(2), 163-169. https://doi.org/10.12714/egejfas.2019.36.2.08

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