Infestation and histopathology of Anguillicola crassus in European eel in the Lake Bafa, Türkiye

IF 1.4 Q3 PARASITOLOGY

Veterinary parasitology, regional studies and reports Pub Date : 2025-09-13 DOI:10.1016/j.vprsr.2025.101343

Şeydanur KAN , Ayşegül KUBİLAY , Salim Serkan GÜÇLÜ , Özlem ÖZMEN , Mehmet CİLBİZ , Habil Uğur KOCA

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Abstract

This study aimed to first detect and histopathologically confirm the Anguillicolacrassus parasite in European eel (Anguilla anguilla) from Bafa Lake in the Aegean region of Türkiye. As a result of external and internal parasitological examinations performed on 22 individuals with a weight of 42.08–1264.54 g and a length of 31.80–85.30 cm, the presence of parasites was detected. In macroscopic and microscopic examinations, the parasite A. crassus was found in the muscle, intestinal system, brain and swim bladder of the eels. The prevalence was found to be 35 %. Histological examinations confirmed the presence of A. crassus in the gills and intestinal system. In the examined silver and yellow eels, A. crassus eggs, mostly called L1 and L2 forms of A. crassus, were detected in the gills, intestinal system, and muscle. The adult form (L3-L4) was seen in the swim bladder and intestinal system. This study includes the first detection of the A. crassus parasite in eels in Bafa Lake. The unique value of this study is especially evident in the presence of parasites in the muscle, brain, gill and intestinal systems of eels.

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巴法湖欧洲鳗中黑斑鳗的侵染及组织病理学研究

本研究旨在首次在土耳其爱琴海地区巴法湖的欧洲鳗（Anguilla Anguilla）中检测到Anguillicolacrassus寄生虫并进行组织病理学证实。对22只体重42.08 ~ 1264.54 g、体长31.80 ~ 85.30 cm的个体进行体外和体内寄生虫学检查，发现有寄生虫存在。通过肉眼和显微镜检查，在鳗鱼的肌肉、肠道系统、大脑和鱼鳔中均发现了克拉苏绦虫。发现患病率为35%。组织学检查证实在鳃和肠道系统中存在豆瓣。在被检查的银鳗鱼和黄鳗鱼中，在鳃、肠道系统和肌肉中检测到A. crasssus卵，主要被称为A. crasssus的L1和L2形式。成虫（L3-L4）见于鱼鳔和肠系统。本研究首次在八法湖鳗鱼中检测到克拉苏棘虫。这项研究的独特价值在鳗鱼的肌肉、大脑、鳃和肠道系统中寄生虫的存在尤为明显。

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来源期刊

Veterinary parasitology, regional studies and reports Multiple-

CiteScore

2.90

自引率

7.10%

发文量

126

审稿时长

97 days

期刊介绍： Veterinary Parasitology: Regional Studies and Reports focuses on aspects of veterinary parasitology that are of regional concern, which is especially important in this era of climate change and the rapid and often unconstrained travel of people and animals. Relative to regions, this journal will accept papers of the highest quality dealing with all aspects of disease prevention, pathology, treatment, epidemiology, and control of parasites within the field of veterinary medicine. Also, case reports will be considered as they add to information related to local disease and its control; such papers must be concise and represent appropriate medical intervention. Papers on veterinary parasitology from wildlife species are acceptable, but only if they relate to the practice of veterinary medicine. Studies on vector-borne bacterial and viral agents are suitable, but only if the paper deals with vector transmission of these organisms to domesticated animals. Studies dealing with parasite control by means of natural products, both in vivo and in vitro, are more suited for one of the many journals that now specialize in papers of this type. However, due to the regional nature of much of this research, submissions may be considered based upon a case being made by the author(s) to the Editor. Circumstances relating to animal experimentation must meet the International Guiding Principles for Biomedical Research Involving Animals as issued by the Council for International Organizations of Medical Sciences (obtainable from: Executive Secretary C.I.O.M.S., c/o W.H.O., Via Appia, CH-1211 Geneva 27, Switzerland).