Effects of Ocean Warming and Acidification on Marine Ecosystem and Societies in Japanese Coasts

Abstract

Ocean warming and acidification are both caused mainly by excess emission of anthropogenic CO2. Recent studies have revealed that the two phenomena are anticipated to damage marine ecosystem and societies in future in complex ways. To address the issue, mitigating these phenomena by cutting manmade CO2 is a royal road, but at the same time we also need to take other actions which include implementation of adaptive strategies to local societies and industries, such as relocation of marine parks and aquafarms, switching target species of fisheries and aquaculture, and changing aquaculture methods and practices accordingly. To provide guidelines necessary for applying future adaptative strategies locally based upon scientific insights, future projection of marine ecosystem and societies in response to ocean warming and acidification needs to be carried out precisely and with high accuracy and rapidity.