The Presence of the Monogenean Helminth Grubea cochlear Diesing, 1858 from Chub Mackerel (Scomber japonicus) Caught in The Çanakkale Strait, Türkiye

Abstract

In this study, 75 chub mackerels that were caught in the Canakkale Strait in Türkiye between October to December, 2019, were examined for the presence of parasites. The length and weight of all fish were measured and the external body area, oral cavity, nostrils, fins, and gills were examined. Gill samples were examined under a stereomicroscope and all suspicious findings were preserved in 99.99% ethanol. The mean length and weight of fish were 24.84±0.39cm and 146.01±7.16 gr, respectively. It was determined that the collected parasite is Grubea cochlear, a monogenic helminth belonging to the Mazocraeidea family. The chub mackerel, in which the specimen of G. cochlera was isolated among the gill filaments, was a female with a total length of 18.5 cm and a weight of 49.80 gr. This finding of Grubea cochlear isolated from the gills of chub mackerel is the first record of this species in this region.

Keywords

• Chub mackerel
• Grubea cochlear
• Mazocraeidea
• Monogenea
• Scomber japonicus

Çanakkale Boğazı’ndan Yakalanan Kolyoz Balığında (Scomber japonicus) Monogenean Helmint Grubea coclear Diesing, 1758' in Varlığı

Abstract

Bu çalışmada, Ekim-Aralık 2019 tarihleri arasında Çanakkale Boğazı'nda (Türkiye) avlanan 75 kolyoz (Scomber japonicus) Balığı incelenmiştir. Tüm balıkların boy ve ağırlıkları ölçülmüş, dış vücut bölgesi, ağız boşluğu, burun delikleri, yüzgeçler ve solungaçlar incelenmiştir. Solungaç örnekleri stereo mikroskopta incelenmiş ve tüm şüpheli buluntular %99,99’luk etanolde saklanmıştır. Balığın ortalama boyu ve ağırlığı sırasıyla 24.84±0.39cm ve 146.01±7.16 gr idi. Toplanan parazitin Mazocraeidea familyasına ait monogenik bir helmint olan Grubea cochlear olduğu belirlendi. Solungaç lamelleri arasından G. cochlera örneğinin izole edildiği kolyoz, toplam uzunluğu 18.5 cm ve ağırlığı 49.80 gr olan dişi bir bireydir. Kolyozun solungaçlarından izole edilen Grubea cochlear bulgusu, bu türün bölgedeki ilk kaydıdır.

Keywords

• Kolyoz balığı
• Grubea cochlear
• Mazocraeidea
• Monogenea
• Scomber japonicus

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