Climate change in the coastal ocean: shifts in pelagic productivity and regionally diverging dynamics of coastal ecosystems.

ABSTRACT: Climate change has led to intensification and poleward migration of the Southeastern Pacific Anticyclone, forcing diverging regions of increasing, equatorward and decreasing, poleward coastal phytoplankton productivity along the Humboldt Upwelling Ecosystem, and a transition zone around 31° S. Using a 20-year dataset of barnacle larval recruitment and adult abundances, we show that striking increases in larval arrival have occurred since 1999 in the region of higher productivity, while slower but significantly negative trends dominate poleward of 30° S, where years of recruitment failure are now common. Rapid increases in benthic adults result from fast recruitment-stock feedbacks following increased recruitment. Slower population declines in the decreased productivity region may result fr

SUBMITTER: Navarrete SA 

PROVIDER: S-EPMC8914614 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature