東支那海及び南支那海産の魚類に寄生するAnisakidae幼線虫の種類と分布

• Main Authors: 坂口 祐二, 片峰 大助
• Format: Report
• Language: Japanese
• Published: 長崎大学熱帯医学研究所 1971
• Subjects: Terranova
• Online Access: http://hdl.handle.net/10069/4100; https://nagasaki-u.repo.nii.ac.jp/?action=repository_uri&item_id=24727; https://nagasaki-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=24727&item_no=1&attribute_id=18&file_no=1

Geographical distribution of nematoda larva was investigated for 4 years from 1967 to 1970 on 1825 marine fishes of 68 species caught in the sea around Nagasaki, in the East China Sea, and in the South China Sea. The last group was brought back on the Nagasaki-maru, a training ship owned by Nagasaki University School of Fishery, and all others were obtained at the Nagasaki Fish Market. Results of the study were as follows; 1. In regard to the distribution in sea areas, a far greater number and variety of nematoda larva were found in the East China Sea and the South China Sea as compared with the water around Nagasaki. There were found nematoda larvae in 38 fishes of 5 species among 393 of 20 species caught in the sea around Nagasaki, 1 to 10 larvae per fish, 19 of 20 species or 405 of 688 fishes, 1 to 137 larvae in the East China Sea, and 22 of 28 species or 449 of 744 fishes, 1 to 320 per fish in the South China Sea respectively. Parasitic rate was 100 per cent in the following species of fish; Saurida tumbil, Muraenesox cinereus, Argyrosomus argentatus, Decapterus maruadsi, Pseudosciaena crocea in the East China Sea, and Nemipterus virgatus, Lutjanus sebae, Saurida tumbil, Rachycentron canadum in the South China Sea. Amount of the larva per fish was extremely high in Saurida tumbil and Muraenesox cinereus, 85.5 and 65.9 larvae in the averege respectively. 2. The types of nematoda larva discovered were four genuses and 6 species in total; Anisakis sp. (Type I), Contracaecum sp. (Type A, Type B and Type F), Terranova sp. (Type B) and Raphidascaris sp. 3. Anisakis sp. (Type I) has the highest incidence in each sea area, and Contracaecum sp. (Type E) has the second highest incidence in the East china Sea and South China Sea. Although Contracaecum sp. (Type F) has never been described near the Japanese coast, it was found in the South China Sea. Relatively high incidence of Terranova sp. (Type B) was also found in the South China Sea. 4. Species of fish having significantly high incidence of Anisakis sp. (Type I) ...