First record of ostracods as natural intermediate hosts of Anguillicola crassus, a pathogenic swimbladder parasite of eels Anguilla spp.

Diseases of Aquatic Organisms

Kazuya Nagasawa Munenori Miyakawa¹  Frantisek Moravec¹ 

关键词: Ostracoda;    Physocypria nipponica;    Intermediate host;    Parasitic nematode;    Anguillicola crassus;    Japanese eel;    Anguilla japonica;    Japan;   

DOI  :  10.3354/dao066171

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: The ostracod Physocypria nipponica (Ostracoda: Candonidae) was found (prevalence 14.2%) to be the only intermediate host of the nematode Anguillicola crassus (Nematoda: Anguillicolidae), a pathogenic swimbladder parasite of eels, in a greenhouse-heated culture pond at Isshiki, Aichi Prefecture, Japan. Japanese eels Anguilla japonica from the same pond were found to be infected by adult A. crassus (prevalence 71.8%, intensity 1 to 6). This indicates that A. crassus could complete its life cycle under conditions of modern eel-culture technology where copepods were absent due to the unfavorable water quality for them, by utilizing ostracods as the intermediate host.

【 授权许可】

Unknown