Marine and coastal areas are home to a wide variety of ecosystems, for example, coral reefs found in both tropical and temperate areas, sea-grass beds and mangrove forests. Most of these ecosystems support a diverse spectrum of marine life, ranging from top predators such as marine mammals to organisms such as algae, which are at the bottom of the food web. Maintaining the abundance within and the biodiversity of these ecosystems is crucial for fisheries worldwide, including aquaculture. For many people throughout the world, the marine environment is not only a vital source of protein, but the activities which it sustains, such as fisheries, transport and tourism, also provides them with an income. All of these activities have an impact on the marine environment and possibly on biodiversity. The most serious threats to marine biodiversity are degradation and loss of habitats, overexploitation and indiscriminate fishing practices, marine pollution, invasive alien species and climate change. The expansion in types of uses of the marine environment as well as their intensity has not always been accompanied with adequate regulation at the national, regional or global levels. Also, if such regulation was in fact in place, compliance has often been inadequate to prevent serious adverse consequences for marine biodiversity. This course introduces you to the international legal framework on marine biodiversity, which covers global and regional legally binding and non-legally binding agreements. At the end of this course, you will be able to: 1.Recall the impact of human activities on marine biodiversity 2.Identify global and regional agreements and initiatives addressing the conservation and sustainable use of marine biodiversity The course is comprised of 10 short units. Each unit includes a book with links to the InforMEA glossary and relevant documents and websites, additional materials and videos. It will take you 3 hours approximately to complete the course, excluding additional materials. You can manage your time as you wish and retake the course whenever it is more convenient for you. After completing all the units and passing the quiz with an 80% of correct responses, you will receive a certificate of completion.