Graphic demonstrates spillover benefits from the world’s largest no-fishing zone, Papahānaumokuākea Marine National Monument. Data: Medoff, Lynham, and Raynor (2022). Graphic by Ben McLauchlin at benndiagram.com A new study shows that carefully placed no-fishing zones can provide benefits for both fishermen and fish populations. Jennifer Raynor, a professor of natural resource economics at the University of Wisconsin??–Madison, collaborated with researchers from the University ...