Marine ecologists have shown how noise pollution is changing the behaviour of marine animals – and how its elimination will significantly help build their resilience. Laura Briggs reports.Building up a library of sound from marine creatures including cod, whelks and sea slugs is important to helping build resilience in species affected by noise pollution, according to Exeter University's Associate Professor in Marine Biology and Global Change Dr Steve Simpson.Human noise factors including busy shipping lanes, wind farms and water tourism can all impact on the calls of various species – including cod which relies on sound for finding a mate with their "song".