Preserving biodiversity lies at the heart of Nausicaá's mission and it is involved in many European conservation programmes aimed at preserving endangered species. In addition, there are several hundred births at the aquarium every year, reflecting the expertise of the aquariological team in caring for the animals and their well-being each and every day.
Beyond its walls, Nausicaá is involved in numerous projects aimed at conserving animal species on location in collaboration with associations working in the field.
In 2018, the Nausicaá Endowment Fund was created to help finance these actions and to take action as close as possible to threatened species in their natural habitat.