The awards celebrate the work of amateur and professional photographers alike, as well as the beauty and diversity of British wildlife. Winning images are chosen from thousands of entries in 16 categories.
Alex's winning image was of blue sharks, taken in the seas off the coast of Cornwall.
Alex is passionate about bringing the hidden life beneath our sea's surface to wider attention. You can read about the secrets of his success in photographing the elegant blue shark, as well as his tips on underwater photography - and his thoughts on the role photography can play in conservation - on our blog pages.
Each year the British Wildlife Photography Awards generates an incredible catalogue of splendid, exciting, imaginative and artistic images, proving beyond doubt that we have the richest palette of life to celebrate in our own backyard," says the naturalist and TV presenter Chris Packham. "The British Wildlife Photography Awards has done more than any other award to raise the profile of British wildlife."
You can see all the winning images and a selection of highly commended entries on the BWPA website. Or at a year-long touring exhibition which begins at the Mall Galleries in London from 2-6 September.