著者
森 俊彰 岡本 誠 山内 信弥 石井 輪太郎 城倉 昴
出版者
一般社団法人 日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
pp.22-013, (Released:2023-01-16)
参考文献数
24

Three juvenile specimens of Odontanthias borbonius were collected from Suruga Bay (2 specimens, 20.0–23.4 mm standard length (SL), 95–100 m depth) and Okinawa (23.7 mm SL, 180 m depth), Japan. Because little is known of juvenile morphology of the species, the specimens are described and compared with adults from Japan. Fresh coloration of the juveniles was similar to that of adults, being characterized by a pale pink body and large yellow spots. Following fixation, the juvenile coloration was lost, although black pigment vesicles scattered in the former positions of the yellow spots indicated that O. borbonius can be distinguished from all other congeners, which lack such spots. Juveniles of the former had a large, smooth, interopercular spine, the supraocular ridge with serrations, and serrated posttemporal spines.
著者
猿渡 敏郎 山内 信弥 藤井 千春
出版者
東京大学
雑誌
基盤研究(C)
巻号頁・発行日
2009

近年、小型底魚類が未利用水産資源として注目されている。メヒカリ(アオメエソ属魚類)モデル分類群とし、小型底魚類の生活史の解明を図った。マルアオメエソがアオメエソの異名であることが判明した。世界で初めてアオメエソの発光観察と撮影に成功した。アオメエソは、仔稚魚が黒潮に乗り?方海域から輸送され、10-11月ごろ駿河湾内に加入・着底し、翌年湾外へと移動する。本種が、大回遊を行う小型底魚であることが判明した。
著者
松崎 浩二 山内 信弥 津崎 順
出版者
日本水産増殖学会
雑誌
水産増殖 (ISSN:03714217)
巻号頁・発行日
vol.57, no.2, pp.339-340, 2009-06-20 (Released:2012-09-26)
参考文献数
5

Ninety-seven individuals of Pacific saury Cololabis saira collected off Kumano in Mie Prefecture on February 6, 2008 were kept in a 30 m3 columnar tank at 15°C. They were reared under light levels adjusted to 1,400 lx between 08:00 to 17:00 and 20 lx between 17:00 to 08:00 using five halogen lamps. Ratio of the total number of eggs spawned between 08:00 to 13:00, 13:00 to 17:00 and 17:00 to 08:00 was 62%, 20% and 18% respectively from March 22 to April 20, 2008. Also as a result of counting spawning behavior per hour, spawning occurred actively between 08:00 to 13:00, while under 20 lx conditions 97% of spawning activity occurred between 06:00 to 08:00. This indicates that Pacific saury probably actively spawned from pre-dawn to noon.