Ezgi DİNÇTÜRK, Tevfik Tansel TANRIKUL, Hakkı DERELİ

Sudak (Sander lucioperca L., 1758) (Teleostei: Percidae) da Eustrongylides excisus Enfestasyonu

Eustrongylides sp., çevre, balıkçılık ve insan sağlığı açısından tatlı su balıklarının önemli bir zoonotik nematodudur. Eustrongylides excisus enfestasyonu predatör beslenme rejiminden dolayı sudak balığını paratenik konak olarak kullanmaktadır. Bu nematodun önemi karnivor organizmaları ve onlarla beslenen insanları enfekte edebilme niteliğine sahip olmasıdır. Bu araşırmada Göl Marmara (Manisa, Türkiye)’dan Ekim 2015 – Şubat 2016 tarihleri arasında örneklenen 51 adet sudak (Sander lucioperca L., 1758) balığında Eustrongylides excisus enfestasyonu tespit edilmiştir. Her bir örnekte enfestasyonun prevalansı belirlenmiş ve incelenen örneklerin % 100’ünde parazit görülmüştür. Aynı zamanda parazit örnekleri Carl Zeiss 300 VP taramalı elektron mikroskobu (SEM) ile görüntülenmiştir. Kapsüllü ve kapsülsüz parazitler çeşitli kaslarda, karın boşluğunda ve iç organlarda tespit edilmiştir. Ayrıca hava kesesinde de zarar oluşturmamış parazit örneği gözlenmiştir. Taramalı elektron mikroskobu görüntülerinde Eustrongylides cinsinin teşhisi için vücudun ön kısmında dudaklar ve papilla halkaları tespit edilmiştir.

Anahtar Kelimeler:

Eustrongylides excisus, eustrongylidosis, gıda kaynaklı parazit, nematodosis, Sander lucioperca

The Infestation of Eustrongylides excisus in Pike Perch (Sander lucioperca L., 1758) (Teleostei: Percidae)

Eustrongylides sp. is the most significant freshwater fish zoonotic nematode and has great importance for the environment, fishing and human health. Also the infestation of Eustrongylides excisus being paratenic hosts on pike-perch due to its predator feeding regime. The importance of this nematode is the ability of the capacity to infect carnivorous organisms and humans that feed on them. In this study, Eustrongylides excisus infestation was determined from 51 samples of pike perch (Sander lucioperca L., 1758) between October 2015 and February 2016 from Lake Marmara (Manisa, Turkey). Each sample was observed and the prevalence of the infestation was detected 100%. The parasite samples were examined in Carl Zeiss 300 VP scanning electron microscope. The capsulated and encapsulated parasites were found in various muscles, abdominal cavity and on the internal organs. Also, one sample was detected in the swim bladder without any harm. From scanning electron microscopy overviews, lips and papillae circles were detected on the anterior portion of the body as characteristics for diagnosis of the genus Eustrongylides.

Keywords:

Eustrongylides excisus, eustrongylidosis, food-borne parasite, nematodosis, Sander lucioperca,

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