Large, Open Ocean MPAs Distract from More Pressing Ocean Issues Prudent, coastal MPAs are good. Large, open-ocean MPAs are contentious. Effective conservation requires thoughtful decision-making
The mean trophic level of the world’s catch is not declining and the underlying theory that we begin fisheries by catching large valuable fish is incorrect. Lower trophic-level species like abalone and oysters are more likely to collapse from fishing pressure.
A fishery is sustainable when the amount harvested does not compromise future harvests. According to the U.N., 69% of fisheries are sustainable, while 31% are overfished or ‘over-exploited.’ Larger fisheries are typically managed better, so roughly 82% of consumed seafood is sustainable.