Skip to main content

The current application of ecological connectivity in the design of marine protected areas

Marine protected areas (MPAs) are an area-based conservation strategy commonly used to safeguard marine biodiversity and ecosystem services. Ecological connectivity governs the exchange of individuals among spatially fragmented habitats and is often highlighted as an important element in the design of MPAs. However, the degree to which measured or modelled representations of connectivity are applied to marine management decisions worldwide remains unclear.

How MPAs Safeguard the High Seas

The high seas begin 200 nautical miles from coastal shores, beyond the jurisdiction of any country. Their vast expanse and distance from shore pose challenges for exploration and knowledge gathering. However, scientific expeditions in recent years have revealed that these areas, which make up nearly two-thirds of the world’s ocean, harbor an incredible array of species that provide essential services for life on Earth.

The three screen doors: Can marine “protected” areas be effective?

The great majority of marine protected areas (MPAs) fail to meet their management objectives. So MPAs can be effective conservation tools, we recommend two paradigm shifts, the first related to how they are located and the second related to how they are managed. MPAs are unlikely to be effective if they are located in areas that are subject to numerous, and often uncontrollable, external stressors from atmospheric, terrestrial, and oceanic sources, all of which can degrade the environment and compromise protection.