In marine ecosystems, rising atmospheric CO2 and climate change are associated with
concurrent shifts in temperature, circulation, stratification, nutrient input, oxygen content, and
ocean acidification, with potentially wide-ranging biological effects. Population-level shifts
are occurring because of physiological intolerance to new environments, altered dispersal
patterns, and changes in species interactions. Together with local climate-driven invasion
and extinction, these processes result in altered community structure and diversity, including …

Climate change is a complex global issue that is driving countless shifts in the structure and
function of marine ecosystems. To better understand these shifts, many processes need to
be considered, yet they are often approached from incompatible perspectives. This article
reviews one relatively simple, integrated perspective: the abundance-size spectrum. We
introduce the topic with a brief review of some of the ways climate change is expected to
impact the marine ecosystem according to complex numerical models while acknowledging …