A non-profit organisation for the study and the conservation of the marine environment
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Tethys has contributed since 1986 to marine conservation, at national and international levels, through the provision of scientific knowledge.

The Institute has been investigating the ecology of marine species,

most notably whales and dolphins, in research campaigns involving paying volunteers,

that are among the earliest citizen science projects in the Mediterranean.

Last available spaces!

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IDP in Greece has  a few spaces for September 6th -12th at a discounted fee (725 Euro instead of 825).  Places will be assigned on a first come first served basis. Contact us or email: tethys@tethys.org.

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Befriend a sperm whale

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It’s a great present to someone you love – and you’ll support research and conservation of cetaceans. Choose between one of the sperm whales of the Sanctuary.

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Fin whales migrating

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For the first time satellite tracking reveals north-south whale highway across the Mediterranean, intersecting one of the world’s busiest ship lanes

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Not just dolphins…

monk-seal-greeceMonk seals, a very rare species in the Mediterranean, have been sighted during the first survey in the inner Ionian Sea Archipelago in Greece – and not only one, but three of them! Join us in the field.

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Projects

A series of best pictures regarding Tethys' ongoing long term research projects conducted in the Mediterranean which you can join: CSR in the Pelagos Sanctuary, Ligurian Sea on board the RV "Pelagos", and IDP in the coastal waters of Greece.

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Blog

Recent updates

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News from the latest cruise: CSR 12 B (August 17th – 23rd)

Sunday August 23rd, 2015

1)        Day one on the Pelagos: unfortunately strong winds and wild waves bought us into port early; but no time was wasted with gnocchi-making and Italian music on the.. read more

News from the latest cruise: CSR 12A (August 10th – 16th)

Wednesday August 19th, 2015

Please enjoy the “diary” from the latest journey on board the research vessel “Pelagos” in the Cetacean Sanctuary, team CSR 12A. Day 1: The first day out at sea, involving encounters.. read more

News from the latest cruise: CSR 12 (August 3rd – 9th)

Monday August 10th, 2015

Here are a few highlights from the latest journey on board the research vessel “Pelagos” in the Cetacean Sanctuary, team CSR 12. Day 1 (04/08/2015) First test with the new DRONE.. read more