Biodiversity Monitoring & Assessment

To achieve the OSPAR vision for a healthy and biodiverse sea, we need to know how our seas function and whether the actions that the OSPAR Contracting Parties agree to take are having the intended effect. Assessing marine biodiversity is a complex task given the large number of possible parameters to consider and the vast areas to be covered.

The OSPAR common indicators assess the changes in populations of marine mammals, seabirds, fish, they look at changes in the phyto- and zoo-plankton communities, benthic habitats and food webs.

Our latest assessments: Quality Status Report 2023