Hani Bader with ‘Socotra Cormorant’ of jellyfish and Socotra cormorant in Bahrain

Underwater Photographer of the Year 2015 winners

Underwater Photographer of the Year 2015 winner and International Macro winner: Nuno Sá (Portugal) with ‘50 Tons Of Me’ taken in the Algarve

Matt Doggett with ‘Gannets Feast’, Shetland Islands, UK

Mario Vitalini with ‘Glowing Goby’ taken in Lembeh, Sulawesi, Indonesia

Cathy Lewis with ‘Valet service’

Raffaele Livornese (Italy) with ‘From the Below’ of Manta ray in the Maldives

Morten Bjørn Larsen with ‘Bottoms Up’ of freediving world championships in Denmark

Trevor Rees with ‘Pike, the lurking predator

Steve Jones with ‘Tunnel Vision’ taken during pre-launch trials of the Orcalight, the most powerful battery powered LED dive lamp in the world

Theresa A Guise (US) with ‘Dancing shrimp in formation’ taken on a dive site mooring, a large concrete block, which was covered in pink sponge

Filippo Borghi with ‘The passenger’ of an emperor shrimp on a solar powered nudibranch

Trevor Rees (UK) with ‘The amphipod has landed’

Matt Doggett with ‘Peekaboo puffin’ taken near the Scottish islands of North Rona and Sula Sgeir in the north Atlantic Ocean

Arthur Kingdon with ‘Northern Prawn’

Tobias Friedrich with ‘Eelastic’ of a giant moray eel taken inside the wreck of the Chrisoula K in the northern Red Sea

Montse Grillo (Spain) with ‘Survival’ taken off the coast of Tenerife

Tammy Gibbs with ‘Good luck my babies

Fabrice Guerin (France) with ‘Angelita’ taken on a Mexico’s Yucatan Peninsula in cave called Cenote Angelita at a depth of 30 metres

Trevor Rees with ‘Cuttlefish in a blur’

Polly Whyte with ‘Hermit crabs hanging out’ taken

Tommi Kokkola with ‘Fast Oceanic’

Paul Colley CB OBE with ‘Sharp Shrimp’ taken near Chesil beach, Dorset