Sirachai Arunrugstichai / Blacktip reef shark (Carcharhinus melanopterus) circling over a half-eaten Yellowback fusilier (Caesio xanthonota) carcass, that was attacked by a Barracuda (Sphyraena sp.) on a shallow reef at night,...

Sirachai Arunrugstichai / Tawny nurse shark (Nebrius ferrugineus) resting in a small cave during the day, Mu Koh Similan National Park, Andaman Sea, Phang-nga, Thailand.

Sirachai Arunrugstichai / Whale shark (Rhincodon typus), an endangered species, swimming through a school of Goldband fusiliier (Pterocaesio chrysozona) whilst feeding on zooplankton in nutrient-rich murky water, Adang-Rawi Ar...

Sirachai Arunrugstichai / Bigeye trevally (Caranx sexfasciatus) swimming inside an artisanal fish trap, Adang-Rawi Archipelago, Andaman Sea, Satun, Thailand.

Sirachai Arunrugstichai / Whale shark (Rhincodon typus), an endangered species, feeding on zooplankton in nutrient-rich murky water, being followed by a school of Cobia (Rachycentron canadum), Adang-Rawi Archipelago, Satun, An...

Sirachai Arunrugstichai / Bigeye trevally (Caranx sexfasciatus) and Giant trevally (Caranx ignobilis) swimming inside an artisanal fish trap of the indigenous Urak Lawoi tribe, Adang-Rawi Archipelago, Andaman Sea, Satun, Thail...

Sirachai Arunrugstichai / Whale shark (Rhincodon typus), an endangered species, feeding on zooplankton in nutrient-rich murky water, being followed by a school of Cobia (Rachycentron canadum), Adang-Rawi Archipelago, Satun, An...

Sirachai Arunrugstichai / Large school of Bigeye trevally (Caranx sexfasciatus) swimming midwater, Adang-Rawi Archipelago, Andaman Sea, Satun, Thailand.

Sirachai Arunrugstichai / Portrait of photographer Sirachai 'Shin' Arunrugstichai, Thailand 2017

Sirachai Arunrugstichai / A Southern stingray (Hypanus americanus) glides over the aerating roots of a mangrove forest, Bimini, the Bahamas.

Sirachai Arunrugstichai / Two marine biologists attach fragments of damaged corals onto an electrified metal structure, which has been reported to improve skeletal growth, resilience, and resistance to bleaching of these recov...

Sirachai Arunrugstichai / Fisherman swimming along the nets to rig it up with rope from the commercial purse seiner. Prior to pulling in the catch. Andaman Sea,Thailand, Krabi Province, Thailand, December 2015.