Global Patterns of Coastal Cephalopod Diversity Under Climate Change

Coastal marine ecosystems are currently being exposed to climate change at a much faster rate than many other ecosystems, with coastal species multiple stressors. Cephalopod mollusks play pivotal role in trophic webs, and most “keystone” due their influence on ecosystem dynamics. In this study, we characterized the global patterns of cephalopod diversity present, for first time, forecast potential changes richness, mean body size, assemblage composition (i.e., replacement, nestedness, combinations both) 161 under change, using an ensemble ecological niche models (ENMs) end century mitigation scenario. We have shown that, baseline period, is higher Central Indo-Pacific area that size follow temperature-size rule, larger animals occurring latitudes. The end-century projections habitat suitability show different picture, 96% predicted experience range contraction 15% completely losing environmental space. Nestedness projected be main effect compositional change. Maximum increase 44% pixels decrease 37%. Regarding fisheries, more favorable countries latitudes, although search refugia smaller tropical might potentially lead negative effects these areas, as measured by total capture (ton). While model has limitations, our findings reflect major climatic drivers highlight idea even though seem good candidates replace overexploited fish stocks near future, they may not space do so.