Keio University

Published papers

Iwata, Takashi

1-20 items (total 23)

Detection of grooming behaviours with an acceleration data logger in a captive northern fur seal (Callorhinus ursinus)

Author
Iwata T., Yonezaki S., Kohyama K. and Mitani Y.
Publication Title
Magazine name Aquatic Mammals Volume 39(Issue 4) Start Page 378 - End Page 384 (Publication Date)2013/10)
Role
First Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

A possible example of the coexistence of dolphins and marine economic activity in Osaka Bay, Japan

Author
Iwata, T., Matsumoto, T., Ogawa, M. I., Akamatsu, T., Araki, T., & Kimura, S. S.
Publication Title
Magazine name Aquatic Mammals Volume 52(Issue 1) Start Page 1 - End Page 7 (Publication Date)2026/01)
Role
First Author Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Respiration rates and inferred mass-specific field metabolic rates decline with body size among five sympatric cetaceans

Author
Glarou, M., Christiansen, F., Iwata, T., Basran, C. J., Ruppert, S. N. S., Sotiropoulou, D., Iversen, M. R., Akamatsu, T., Schnitzler, J. G., Siebert, U., Rasmussen, M. H.
Publication Title
Magazine name Journal of Comparative Physiology B Publisher Springer Nature Start Page 659 - End Page 675 (Publication Date)2025/12)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Biologging intelligent Platform (BiP): an integrated and standardized platform for sharing, visualizing, and analyzing biologging data

Author
Sato, K., Watanabe, S., Noda, T., Koizumi, T., Yoda, K., Watanabe, Y. Y., Sakamoto, Q. K., Isokawa, T., Yoshida, A. M., Aoki, K., Takahashi, A., Iwata, T., Nishizawa, H., Maekawa, T., Kawabe, R., Watanuki, Y.
Publication Title
Magazine name Movement Ecology Publisher Springer Nature Start Page 23 (Publication Date)2025/04)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Biologging as a Potential Platform for Resolving Ocean Environmental Issues and Threats: Towards the Development of the Internet of Animals

Author
Iwata, T., Akamatsu, T.
Publication Title
Magazine name Water Biology and Security Publisher Elsevier Volume 4(Issue 4) Start Page 100383 (Publication Date)2025/10)
Role
First Author Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Prey targeted by lactating Weddell seals (Leptonychotes weddellii) in Erebus Bay, Antarctica

Author
Foster-Dyer, R. T., Goetz, K. T., Iwata, T., Holser, R. R., Michael, S. A., Pritchard, C., Childerhouse, S., Costa., P. D., Ainley, G. D., Pinkerton, H. P., LaRue, M. A.
Publication Title
Magazine name Polar Biology Publisher Springer Nature Volume 47(Issue 11) Start Page 1187 - End Page 1202 (Publication Date)2025/12)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Detection of environmental DNA of finless porpoise (Neophocaena asiaeorientalis) in Osaka Bay, Japan

Author
Hashimoto, N., Iwata, T., Kihara, N., Nakamura, K., Sakata, M. K., Minamoto, T.
Publication Title
Magazine name Conservation Genetics Resources Publisher Springer Nature Volume 16(Issue 3) Start Page 255 - End Page 261 (Publication Date)2024/05)
Role
Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Non-lunge feeding behaviour of humpback whales associated with fishing boats in Norway

Author
Iwata T., Aoki K., Miller P. J. O., Biuw M., Williamson, M. J., and Sato K.
Publication Title
Magazine name Ethology Publisher Wiley Volume 130(Issue 2) Start Page 13419 (Publication Date)2023/11)
Role
First Author Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

First observations of sponge foraging by Weddell seals in Erebus Bay, Antarctica

Author
Foster-Dyer R. T. N., Goetz K. T., Pinkerton M. H., Iwata T., Holser R., Michael S. A., Pritchard C., Childerhouse S., Rotella J., and LaRue M.
Publication Title
Magazine name Polar Biology Publisher Springer Nature Start Page 611 - End Page 621 (Publication Date)2023/05)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Similar circling movements observed across marine megafauna taxa

Author
Narazaki T., Nakamura I., Aoki K., Iwata T., Shiomi K., Luschi P., Suganuma H., Meyer C. G., Matsumoto R., Bost C. A., Handrich Y., Amano M., Okamoto R., Mori K., Ciccione S., Bourjea J. and Sato K.
Publication Title
Magazine name iScience Publisher Elsevier Volume 24(Issue 4) Start Page 102221 (Publication Date)2021/04)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Using an omnidirectional video logger to observe the underwater life of marine animals: humpback whale resting behaviour

Author
Iwata T., Biuw M., Aoki K., Miller P. J. O., and Sato K.
Publication Title
Magazine name Behavioural Processes Publisher Elsevier Start Page 104369 (Publication Date)2021/05)
Role
First Author Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Aerial photogrammetry and tag-derived tissue density reveal patterns of lipid-store body condition of humpback whales on their feeding grounds

Author
Aoki K., Isojunno S., Bellot C., Iwata T., Kershaw J., Akiyama Y., Martín López L.M., Ramp C., Biuw M., Swift R., Wensveen P. J., Pomeroy P, Narazaki T., Hall A., Sato K. and Miller P. J. O.
Publication Title
Magazine name Proceedings of the Royal Society B Publisher Royal Society Publishing Start Page 20202307 (Publication Date)2021/01)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Utilization and development of biologging in marine mammal studies

Author
Iwata T.
Publication Title
Magazine name Mammalian Science Start Page 281 - End Page 296 (Publication Date)2020/08)
Role
First Author Last Author Corresponding Author
Authorship Category
Single Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Leave or stay? Video-loggers revealed foraging efficiency of humpback whales under temporal change in prey density

Author
Akiyama Y., Akamatsu T., Rasmussen M. H., Iversen M. R., Iwata T., Goto Y., Aoki K. and Sato K.
Publication Title
Magazine name PLOS ONE Publisher PLOS Volume 14(Issue 2) Start Page e0211138 (Publication Date)2019/02)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Future directions in research on Bryde's whales

Author
Constantine R., Iwata T., Nieukirk S. L., and Penry G. S.
Publication Title
Magazine name Frontiers in Marine Science Publisher Frontiers Start Page 333 (Publication Date)2018/09)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Tread-water feeding of Bryde's whales

Author
Iwata T., Akamatsu T., Thongsukdee S., Cherdsukjai P., Adulyanukosol K., and Sato K.
Publication Title
Magazine name Current Biology Publisher Elsevier Start Page 1154 - End Page 1155 (Publication Date)2017/11)
Role
First Author Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

The influence of preceding dive cycles on the foraging decisions of Antarctic fur seals

Author
Iwata T., Sakamoto K. Q., Edwards E. W. J., Staniland I. J., Trathan P. N., Goto Y., Sato K., Naito Y. and Takahashi A.
Publication Title
Magazine name Biology Letters Publisher Royal Society Publishing Start Page 20150227 (Publication Date)2015/07)
Role
First Author Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Report of seabird observation in the Indian sector of the Southern Ocean during the austral summer of 2005-2008

Author
Iwata T., Hayashi T., Takasawa-Kasamatsu N.
Publication Title
Magazine name Czech Polar Reports Publisher MUNI PRESS Volume 3(Issue 2) Start Page 82 - End Page 86 (Publication Date)2013)
Role
First Author Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Heart rate and estimated energy expenditure of flapping and gliding in black-browed albatrosses

Author
Sakamoto Q. K., Takahashi A., Iwata T., Yamamoto T., Yamamoto M. and Trathan P. N.
Publication Title
Magazine name Journal of Experimental Biology Publisher The Company of Biologists Volume 216(Issue 16) Start Page 3175 - End Page 3182 (Publication Date)2013/08)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Using a mandible accelerometer to study fine-scale foraging behavior of free-ranging Antarctic fur seals

Author
Iwata T., Sakamoto K. Q., Takahashi A., Edwards E. W. J., Staniland I. J., Trathan P. N. and Naito. Y.
Publication Title
Magazine name Marine Mammal Science Publisher Wiley Volume 28(Issue 2) Start Page 345 - End Page 357 (Publication Date)2012/04)
Role
First Author Corresponding Author
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With