Visualizing Economic Connections among Fisheries: A New Tool for Ecosystem-Based Fisheries Management

Anyone who has seen a food web of a marine ecosystem has seen a model in which little fish eat plankton, medium-sized fish eat little fish, and the biggest fish eat everything else. A food web is a familiar way to conceptualize the ecological connectivity of marine species. In a paper titled “Defining the Economic Scope for Ecosystem-Based Fishery Management”, and published this year in Proceedings of the National Academy of Sciences, we pose and examine the question: could a parallel model be used to conceptualize economic connectivity and explore the management implications of policy choices?