Squalius recurvirostris Özuluğ & Freyhof, 2011'in Dactylogyrid Parazit Faunası Üzerine Bir Araştırma

Year 2021, Volume: 12 Issue: 2, 255 - 262, 01.12.2021

Mehmet Zeynel Elbay Mehmet Oğuz Öztürk

https://doi.org/10.29048/makufebed.905707

Abstract

Bu çalışmanın amacı, Düzağaç-Akdeğirmen Baraj Gölü (Afyonkarahisar)’ndeki Squalius recurvirostris'in dactylogyrid parazit türlerini ve bu türlerin anatomik, morfolojik, metrik ve ekolojik özelliklerini tanımlamaktır. Araştırma metodolojisi kapsamında, Squalius recurvirostris örneklerinin deri yüzeyi, yüzgeç ve solungaçları dactylogyrid parazitler bakımından incelendi. Dactylogyrus sp. örneklerinin bazıları etil alkol ortamında muhafaza edilirken bazıları anatomik, morfolojik ve metrik özelliklerinin tanımlanması için daimi preparat yapıldı. Dactylogyrus naviculoides’in enfestasyon yüzdesi %89,4 ve ortalama parazit yoğunluğu 27,1±24,1 dir. Dactylogyrus vistulae için bu değerler sırasıyla %63,6 ve 4,5±2,3 dir. Her iki parazit türü tüm mevsimlerde kaydedildi. Dactylogyrus naviculoides’in yoğunluğu kış döneminde, Dactylogyrus vistulae’nin yoğunluğu ilkbaharda daha baskındı. Balık numuneleri yaş büyüklüğüne göre 5 gruba ayrıldı. Büyük yaş grubundaki balıklarda her iki Dactylogyrus türünün daha yüksek enfestasyona neden olduğu tespit edildi. Diğer yandan, her iki parazit türüne ait enfestasyon değerleri erkek balık bireylerinde dişilere göre daha yüksek değerde kaydedildi: Dactylogyrus naviculoides (%89,4, 27,1±24,1), Dactylogyrus vistulae (%63,6, 4,5±2,3). Sonuç olarak, Düzağaç-Akdeğirmen Baraj Gölü’ndeki Squalius recurvirostris’te 2 dactylogyrid parazit türü belirlenmiştir. Bu parazit türler, Squalius recurvirostris için yeni kayıttır. Böylece ilgili parazit türlerin coğrafik yayılışlarına yeni bir lokalite ve yeni bir konak ilave edilmiştir. Ayrıca, parazit türlerin enfestasyon olguları ekolojik yönden de değerlendirilmiştir.

Keywords

Dactylogyrus naviculoides, Dactylogyrus vistulae, Squalius recurvirostris

Supporting Institution

Afyon Kocatepe Üniversitesi Bilimsel Araştırma Projeleri Birimi

Project Number

13.Fen.Bil.01

Thanks

Bu çalışma, Afyon Kocatepe Üniversitesi Bilimsel Araştırma Projeleri Birimi tarafından 13.Fen.Bil.01 nolu proje kapsamında desteklenmiştir.

An Investigation on Dactylogyrid Parasite Fauna of Squalius recurvirostris Özuluğ & Freyhof, 2011

Abstract

The purpose of this study is to define the dactylogyrid parasite species of Squalius recurvirostris from Düzağaç-Akdeğirmen Dam Lake (Afyonkarahisar) and their anatomical, morphological, metric and ecological characteristics. Within the scope of the research methodology, the skin surface, fins and gills of Squalius recurvirostris samples were examined for dactylogyrid parasites. While some of the Dactylogyrus sp. samples were kept in ethyl alcohol environment, some permanent preparations were made to define their anatomical, morphological and metric properties. The overall infection percentage of Dactylogyrus naviculoides belonging to the study findings was 89.4% and the average parasite density was 27.1±24.1. For Dactylogyrus vistulae, these values are 63.6% and 4.5±2.3%, respectively. Both types of parasites have been recorded in all seasons. The density of Dactylogyrus naviculoides was more dominant in the winter period and the density of Dactylogyrus vistulae in the spring compared to the other seasons. Fish samples were divided into 5 groups according to age. It was determined that both Dactylogyrus species caused higher infections in fish in the older age group. On the other hand, infection values of both parasite species were higher in male fish individuals compared to females: Dactylogyrus naviculoides (89.4%, 27.1±24.1), Dactylogyrus vistulae (63.6%, 4.5±2.3). As a result, 2 dactylogyrid parasite species were identified in Squalius recurvirostris in Düzağaç-Akdeğirmen Dam Lake. The parasitic species is the new record for Squalius recurvirostris. Thus, a new locality and a new host have been added to the geographical distribution of the related parasitic species. In addition, the cases of infection of parasitic species were evaluated ecologically.

Keywords

Dactylogyrus naviculoides, Dactylogyrus vistulae, Squalius recurvirostris

Project Number

13.Fen.Bil.01

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