ubc.ca The authors declare competing interests: details accompany the article at go.nature.com/PgP7t7. 1. Mame Stewardship Council. Principles and Cmenefor Sustamoble Foliate (2010); available at go.naturacom/ UT46uo 2. lanell1,1 N.et at Assessment of the WalleyePollockStock M the Eastern Benne Seo 2