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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >
First in Situ Observations of Behavior in Deep-Sea Tanaidacean Crustaceans
| Title: | First in Situ Observations of Behavior in Deep-Sea Tanaidacean Crustaceans |
| Authors: | Kakui, Keiichi Browse this author →KAKEN DB | | Fujiwara, Yoshihiro Browse this author |
| Keywords: | Crustacea | | deep sea | | hadal zone | | Japan | | Malacostraca | | Nansei-Shoto Trench | | Peracarida | | Tanaidacea |
| Issue Date: | Aug-2020 |
| Publisher: | Zoological Society of Japan |
| Journal Title: | Zoological Science |
| Volume: | 37 |
| Issue: | 4 |
| Start Page: | 303 |
| End Page: | 306 |
| Publisher DOI: | 10.2108/zs200028 |
| Abstract: | We report on the behavior of a deep-sea tanaidacean, Gigantapseudes sp. (Apseudomorpha: Gigantapseudidae), recorded at the depths of 6446–6447 m by the manned submersible Shinkai 6500. From recordings of at least three individuals walking on the sea floor, we confirm that Gigantapseudes sp. is epibenthic, as previously inferred from leg shape. One individual was recorded entering a hole. All individuals in the videos kept pereopods 4 raised from the seafloor while walking, implying that those legs have a function other than for walking, such as mechano- or chemoreception, or posture control. Our in situ observations of behavior are the first for any deepsea tanaidacean and illustrate the importance of recording high-resolution videos in the deep sea and archiving them for future use. Our identification of Gigantapseudes sp. from video footage provides the first record of this genus from Japanese waters and extends the northern limit of the known generic distribution. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/82314 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 角井 敬知
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