Pursuit-diving seabird endures regime shift involving a three-decade decline in forage fish mass and abundance

Abstract

How marine top predators respond to ocean climate change is a focal research question that challenges biologists, oceanographers, and fishers alike. Ocean climate influences on top predators are mediated almost exclusively through bottom-up influences on prey availability (Oro 2014), and forage species on which many top predators depend are often the conduit of food web perturbations which can generate complex species interactions