A non-profit organisation for the study and the conservation of the marine environment

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.

Expeditions just started


Both Tethys’ ongoing long term projects - CSR in the Ligurian sea and IDP in Greece – are citizen science projects. 2015 teams will go on until the end of September. Anyone can participate.


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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


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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Dolphins in Greece

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Two 1-week volunteer teams, one at Ionian Dolphin Project in Greece, starting  June 14th, and one in the ligurian Sea (Italy) at Cetacean Sanctuary Research starting June 8th, have still a few spaces available at a very special last-minute minimum contribution. Check out the fees: Greece, Italy




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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Recent updates

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Fin whale satellite tracking 2015: the Mediterranean migration

Saturday May 23rd, 2015

. Satellite tracking reveals north-south whale highway across the Mediterranean, intersecting one of the world’s busiest ship lanes . Fin whales that live in the oceans are known to undergo seasonal migrations.. read more

(Italiano) Liberi e selvaggi: venerdi 8 maggio balene a Bolzano

Tuesday May 5th, 2015

Nell’ambito della mostra “Liberi e selvaggi”, Maddalena Jahoda, ricercatrice e communication manager dell’Istituto Tethys, terrà un incontro con il pubblico sui “misteri” dei cetacei del Mediterraneo questo venerdi sera presso il.. read more

Cetacean Photo Exhibition at the Oceanographic Museum of Monaco

Monday April 27th, 2015

Formally launched last week (on tuesday 21st) by His Highness Prince Albert II of Monaco, the Cetacean Photo Exhibition organized by ACCOBAMS (Agreement on the Conservation of Cetaceans in the.. read more