- 著者
- Fujikura Katsunori Fujiwara Yoshihiro Kawato Masaru
- 出版者
- 社団法人日本動物学会
- 雑誌
- Zoological science (ISSN:02890003)
- 巻号頁・発行日
- vol.23, no.8, pp.733-740, 2006-08-25
- 被引用文献数
- 66
A new whale-bone-eating polychaete species of the genus Osedax was found on sperm whale carcasses submerged off Cape Nomamisaki, Kyushu, Japan, at a depth of approximately 200m. The new species, Osedax japonicus, is the fourth known species of the genus Osedax and the first species from the western Pacific. Female O. japonicus specimens (1) form dense clusters on whale carcasses; (2) have a body composed of crown, trunk, and root structure; (3) lack a digestive tract; and (4) have bacterium-like particles in the tissue of the root structure. Osedax japonicus shares all these characteristics with O. rubiplumus and O. frankpressi, and items (1) to (3) with O. mucofloris. Osedax japonicus is easily distinguished from the other three known species by oviduct morphology, body length, and palp coloration in females. No males of O. japonicus have yet been found.
- 著者
- Hashimoto Jun Miura Tomoyuki Fujikura Katsunori Ossaka Joyo
- 出版者
- 社団法人日本動物学会
- 雑誌
- Zoological science (ISSN:02890003)
- 巻号頁・発行日
- vol.10, no.6, pp.1063-1067, 1993-12-15
- 被引用文献数
- 15
To date, vestimentiferan tube-worms have been considered to be a typical member of the deep-sea biological communities supported by chemosynthetic production. In 1993, during a series of surveys exploring the biological community accompanied by submarine fumaroles called "Tagiri" by local fishermen, thousands of vestimentiferans were discovered to form clusters at a depth of 82 m in Kagoshima Bay, southern Japan. The tube-worms were collected by means of a small dredge attached to a deep-tow color TV system. Some dozen of living worms has been maintained in a laboratory for more than 220 days. The vestimentiferans in Kagoshima Bay are remarkable not only in the shallowest occurrence in the world but also in the first record from the euphotic zone.