Language 日本語
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Bio-logging Science, the University of Tokyo

UTBLS began in 2007 as a project of University of Tokyo to assess and explain unknown ecology of life in the oceans. The members of UTBLS have visited islands, offshore waters and coastal areas to attach data-loggers to more than 50 species including cetaceans, pinnipeds, sea turtles, sea birds and fishes in the world. Data-loggers can provide animal’s world we had never seen before.

We welcome collaboration with graduate students, postdoctoral fellows and scientists. Please contact us if you are interested in Bio-logging Science.

Recent updates

Publications Iwata et al. 2015
Publications Nakamura et al. 2015
Publications Narazaki et al. 2015
Research: Laysan albatross in Hawaii

New publications

Iwata T,
Sakamoto K. Q, Edwards E. W. J, Staniland I. J, Trathan P. N, Goto Y, Sato K, Naito Y and Takahashi A. The influence of preceding dive cycles on the foraging decisions of Antarctic fur seals.Biol. Lett. 11: 20150227 (2015)
Nakamura I,
Meyer G. C and Sato K. Unexpected Positive Buoyancy in Deep Sea Sharks, Hexanchus griseus, and a Echinorhinus cookei. PLoS One e0127667 (2015)
Narazaki T,
Sato K and Miyazaki N. Summer migration to temperate foraging habitats and active winter diving of juvenile loggerhead turtles Caretta caretta in the western North Pacific. Mar Biol 162:1251-1263 (2015)
Fukuoka T,
Narazaki T and Sato K.Summer-restricted migration of green turtles (Chelonia mydas) to a temperate habitat of the northwest Pacific Ocean. Endangere Species Res. 28:1-10 (2015)
Otaki T,
Hamana M, Tanoue H, Miyazaki N, Shibuno T and Komatsu T.Three-dimensional mapping of red stingray (Dasyatis akajei) movement with reference to bottom topography. Ocean Sci J. in press (2015)
Akiyama Y,
Matsuda Y, Sakurai N and Sato K. Evaluation of wave drag on bottlenose dolphin Tursiops truncatus from swimming effort. Coast Mar Sci. in press (2015)
Nakamura I,
Goto Y and Sato K. Ocean sunfish rewarm at the surface after deep excursions to forage for siphonophores. J Anim Ecol. 84:590-603 (2015)
Aoki K,
Amano M, Kubodera T, Mori K, Okamoto R,Sato K. Visual and behavioral evidence indicates active hunting by sperm whales. Mar Ecol Prog Ser, 523:233-241 (2015)


Principal investigator: Prof. Katsufumi Sato, katsu[at]
Behavior, Ecology and Observation Systems,
Atmosphere and Ocean Research Institute,
The University of Tokyo
5-1-5 Kashiwanoha, Kashiwa City, Chiba Prefecture, 277-8564, Japan