Marine Mammals Exploring the Oceans Pole to Pole

When diving animals help us to observe the oceans

Over 800,000 vertical profiles of Temperature and Salinity have been collected since 2004 in the World Ocean by attaching tags on marine mammals, such as Southern elephant seals.

In this website, you will find information about the marine mammal tagging programs, and an access point to the publicly available databases.

Please let us know if you are using our data. You can contact us by mail to if you have any question.

The MEOP data portal

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Content of the website

Publications 2021

•  [bio] Aubone, N., Saraceno, M., Torres Alberto, M.L., Campagna, J., Ster, L.L., Picard, B., Hindell, M., Campagna, C., Guinet, C.R., 2021. Physical changes recorded by a deep diving seal on the Patagonian slope drive large ecological changes. Journal of Marine Systems 223, 103612.

•  [ocean] Kokubun, N., Tanabe, Y., Hirano, D., Mensah, V., Tamura, T., Aoki, S., Takahashi, A., 2021. Shoreward intrusion of oceanic surface waters alters physical and biological ocean structures on the Antarctic continental shelf during winter: Observations from instrumented seals. Limnology and Oceanography 66, 3740–3753.

•  [ocean] Zheng, Y., Heywood, K.J., Webber, B.G.M., Stevens, D.P., Biddle, L.C., Boehme, L., Loose, B., 2021. Winter seal-based observations reveal glacial meltwater surfacing in the southeastern Amundsen Sea. Commun Earth Environ 2, 1–9. doi: 10.1038/s43247-021-00111-z

•  [AniBOS] McMahon, C.R., Roquet, F., Baudel, S., Belbeoch, M., Bestley, S., Blight, C., Boehme, L., Carse, F., Costa, D.P., Fedak, M.A., Guinet, C., Harcourt, R., Heslop, E., Hindell, M.A., Hoenner, X., Holland, K., Holland, M., Jaine, F.R.A., Jeanniard du Dot, T., Jonsen, I., Keates, T.R., Kovacs, K.M., Labrousse, S., Lovell, P., Lydersen, C., March, D., Mazloff, M., McKinzie, M.K., Muelbert, M.M.C., O’Brien, K., Phillips, L., Portela, E., Pye, J., Rintoul, S., Sato, K., Sequeira, A.M.M., Simmons, S.E., Tsontos, V.M., Turpin, V., van Wijk, E., Vo, D., Wege, M., Whoriskey, F.G., Wilson, K., Woodward, B., 2021. Animal Borne Ocean Sensors – AniBOS – An Essential Component of the Global Ocean Observing System. Frontiers in Marine Science 8, 1625. doi: 10.3389/fmars.2021.751840