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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•  About  MEOP

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Content of the website

Contact us

About the authors of the MEOP-CTD database:

•  Fabien Roquet: Physical oceanographer at the Department of Marine Sciences at the University of Gothenburg (Sweden). Since his early involvement, first as a data engineer on the SeaOS project, Fabien has continued to develop and promote the use of elephant seals in physical oceanography.

•  Baptiste Picard, Engineer at the University of La Rochelle (CEBC/CNRS, France). Baptiste has been active on the MEOP project since 2012. He is assisting the development of the MEOP-CTD database and associated analysis.

•  Vincent Doriot, Data scientist (GU, Sweden). Vincent assisted in developing the new version of MEOP-CTD and contributes to the scientific analysis.

For any questions regarding the technology or the dataset, please don’t hesitate to contact us by email ( It is in the interest of this project that the data are used by the largest possible number of researcher and institutions, so we will hapilly help as much as we can.

Please do not forget to cite us in your publications, as it is the best way to support us. Let us know about your publications using the MEOP data and we will add them to our curated list of publications.

Also, let us know if you are using seal-derived data. It is always very pleasant to know that our work is useful for others, and it is also of great help for the development of the MEOP project to know when and why our data have been used.