Assessing the Population-Level Effects of MPAs

A summary of Ovando et al. (2021)

Dan Ovando

13 minute read

If you’ve ever spent time exploring a part of the ocean protected from fishing you’ve probably been struck by the amazing abundance of marine life living there. These places, currently covering between 3-7% of the world’s oceans, are a form of Marine Protected Area (MPA). MPAs can be a powerful conservation tool, and there is a growing movement to expand MPAs to cover 30% of the world’s oceans by 2030. However, actually measuring the effect that MPAs have on fish populations can be very…