Park ranger and a school of bigeye trevally, Cabo Pulmo, Mexico, 2015

‘Once in a while, I get an email from people telling me that, thanks to a photograph that they saw somewhere, they began scuba diving. Some mentioned the photographs helped them lose their fear of underwater animals or the fear of not knowing what is beneath them in the water. If you begin to dive, you will love the ocean and that’s the very first step towards sea protection and sea regulation’ – Anuar Patjane

Photograph: Anuar Patjane/Thames & Hudson