2026-03-07T21:46:04Z https://ir.kagoshima-u.ac.jp/oai

oai:ir.kagoshima-u.ac.jp:00015499 2026-03-04T06:04:56Z 106:115:116 228:233:5978

石川県で飼育されていたヤマメに寄生したチョウモドキ イシカワケン デ シイク サレテイタ ヤマメ ニ キセイシタ チョウモドキ Argulus coregoni (Branchiura: Argulidae) parasitic on masu salmon, Oncorhynchus masou masou (Salmonidae), reared in Ishikawa Prefecture, central Japan. 長澤, 和也 ナガサワ, カズヤ Nagasawa, Kazuya 0000000111671801 鹿児島大学 石山, 尚樹 Ishiyama, N. open access 鹿児島県自然環境保全協会 Argulus coregoni Thorell, 1864 was found in late July 2019 to parasitize the body surface of masu salmon, Oncorhynchus masou masou (Brevoort, 1856), reared for seed production at the Ishikawa Prefecture Fisheries Research Center in Kaga, Ishikawa Prefecture, central Japan. This represents the first record of A. coregoni from Ishikawa Prefecture. Sixty and 12 individuals of A. coregoni were found each on two masu salmon of 20.3 and 21.3 cm in standard length. These individuals consisted of 39 males and 33 females, measuring 2.7–8.6 (mean, 5.0) and 2.8–10.3 (5.1) mm long, respectively, and are considered to have hatched during the spring to early summer in 2019 from overwintered eggs. The condition factor of the fish infected with 60 individuals of A. coregoni was lower than that of the other fish. 鹿児島県自然環境保全協会 2020-05-31 jpn journal article VoR http://hdl.handle.net/10232/00031390 https://ir.kagoshima-u.ac.jp/records/15499 18827551 AA12599025 Nature of Kagoshima 46 73 76 https://ir.kagoshima-u.ac.jp/record/15499/files/AA12599025_46_p73-76.pdf application/pdf 1.0 MB 2020-10-06 2020-05-31