Investigations on Paradiplozoon bliccae (Reichenbach-Klinke, 1961) (Monogenea: Diplozoidae) found in Capoeta aydinensis, an endemic fish in Türkiye, based on ecological, molecular and host related factor approaches

N. Emre, N. Aydogdu, Ali Aydogdu, Özgür Emiroglu
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Abstract

The present study investigated diplozoid parasites in an endemic species, Capoeta aydinensis Turan, Küçük, Kaya, Güçlü & Bektaş, 2017 in Köyceğiz Lake, near Muğla province (Türkiye). The aim of this research is to improve a record of diplozoid species occurrence in C. aydinensis, an endemic fish species by collecting data from a previously unexplored locality situated in a different geographical region of Türkiye. A total of 187 individuals of C. aydinensis were collected by using fishing nets from October 2019 to July 2020 and examined for the presence of diplozoid species. Only one species of diplozoid has been recorded, known as Paradiplozoon bliccae (Reichenbach-Klinke, 1961), which has been identified morphologically and confirmed through molecular analysis. The nucleotide sequences of the parasite's nuclear internal transcribed spacer (ITS2) gene marker were determined as well as phylogenetic analyses by using Bayesian inference (BI) analyses. On the basis of the molecular findings, the morphological identification of the diplozoid parasite species was confirmed. Of 187 fish sampled, 27 were infected with 117 P. bliccae, representing an abundance of 0.6, a mean intensity of 4.3 and a prevalence of 14.4%. The prevalence and mean intensity of infection were based on the season and sex of the host. The highest values of infection for prevalence, mean intensity and abundance were found in summer. Meanwhile, mean intensity and abundance of P. bliccae were higher in males, the prevalence was higher in females. To our knowledge, the present study is the first ichthyoparasitological study of C. aydinensis in Köyceğiz lake, near the province of Muğla in Türkiye. Furthermore, sequence data of P. bliccae from fish hosts in this locality were reported to GenBank for the first time as part of this study. Therefore, this study widens the host range of this parasite species in Türkiye.
基于生态学、分子和宿主相关因素的方法,对在土耳其特有鱼类 Capoeta aydinensis 中发现的 Paradiplozoon bliccae (Reichenbach-Klinke, 1961) (单子叶目:双蝶形目)进行研究
本研究调查了土耳其穆拉省(Türkiye)附近的Köyceğiz湖中一种特有物种Capoeta aydinensis Turan、Küçük、Kaya、Güçlü & Bektaş(2017年)的二裂藻寄生虫。本研究的目的是通过收集位于土耳其不同地理区域的一个以前未曾勘探过的地点的数据,改进对特有鱼种 C. aydinensis 中出现的二叠纪物种的记录。从2019年10月到2020年7月,使用渔网共采集了187条C. aydinensis,并对其进行了二叠类物种的检测。仅记录到一种二裂叶虫,即 Paradiplozoon bliccae(Reichenbach-Klinke,1961 年),已对其进行形态鉴定,并通过分子分析予以确认。通过贝叶斯推断(BI)分析,确定了寄生虫核内转录间隔(ITS2)基因标记的核苷酸序列并进行了系统发育分析。在分子研究结果的基础上,确认了二裂殖寄生虫的形态学鉴定。在取样的 187 条鱼中,27 条感染了 117 条 P. bliccae,感染量为 0.6,平均感染强度为 4.3,感染率为 14.4%。感染率和平均感染强度取决于季节和宿主的性别。感染率、平均强度和丰度的最高值出现在夏季。同时,男性的平均强度和丰度较高,而女性的感染率较高。据我们所知,本研究是首次对土耳其穆拉省附近 Köyceğiz 湖中的 C. aydinensis 进行鱼类寄生虫学研究。此外,作为本研究的一部分,首次向 GenBank 报告了该地区鱼类宿主中的 P. bliccae 的序列数据。因此,这项研究扩大了该寄生虫物种在土耳其的宿主范围。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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