The very clever SafetyNet idea, which lets little fishies escape from the menace of modern trawler nets, has won the global Dyson Award. Its inventor, who scooped the UK prize earlier this year, wins a further £10k to put toward prototypes and testing of his illuminated fish exit.

James Dyson said of the overall winner: “This tangible technology approaches a serious environmental problem, we should celebrate it. SafetyNet shows how young graduates like Dan can tackle global issues ignored by established industries in new and inventive ways.”

Two other entrants were chosen as runners up, with the self-adjusting prosthetic limb from the BETH Project and underwater safety tool Revival Vest getting £2,000 each to further development. [Dyson Award]