Save money on protecting marine species by making bigger parks

Big marine protected areas (MPAs) are cheaper to manage per hectare than small ones, and no-fishing zones are cheaper to manage than multiple-use zones, a new study has found. The world has an estimated 5000 marine protected areas covering 2.85 million square kilometres of ocean – but due to lack of adequate management and enforcement, many are protected in name only. Effective management, and budgeting for the cost of management, is therefore very important.