17/18 Moo 1, Koh Tao Suratthani, 84360 Thailand         Info @ Big Blue Conservation        +66 (0) 077 456 179

Big Blue Conservation - The Koh Tao Shark Survey

On Koh Tao, we love our sharks. Whether it's snorkelling or diving with them, or watching a documentary on these ancient fish, we're there. So we want to make sure our shark populations on Koh Tao are being well looked after, so we have started the KOH TAO SHARK SURVEY. The aim of this group is to keep a database of our shark populations on Koh Tao. If you've seen a shark on Koh Tao, please submit sightings of ANY sharks, preferably with photos, where it was seen, the date and time, the depth of the shark, any behavioural observations and distinct markings or scars, and the sex of the shark if known (males have claspers, females don't). You can send us this information through This email address is being protected from spambots. You need JavaScript enabled to view it., or join our group on Facebook ("The Koh Tao Shark survey"). Even if they were sighted a while ago, if you have photos then please submit these too! This will help us monitor our shark populations on Koh Tao and provide us with observational data for research. All whaleshark photos we will submit onto ECOCEAN's Whaleshark database too. ECOCEAN and the Shepherd Project will use this information to assist scientific research and global conservation initiatives.

The information that you submit is encapsulated in an "encounter" that ECOOCEAN tracks.  Each encounter is assigned a unique number, and you can view that encounter at any time using the link below or by going to the ECOCEAN Whale Shark Photo-identification Library (http://www.whaleshark.org). They will keep you informed of any changes to your submitted encounter, and email you if the shark is matched to another shark within the ECOCEAN Whale Shark Photo-identification Library.  We will also let you know if/when and where your shark is resighted by other community members.

We have started to see many species of sharks return to Koh Tao, such as the Bull sharks and white tip reef sharks at green rock, so it's a great opportunity to have one place where information can be submitted and collected to help monitor the shark populations. Thanks!