해양산성화: 과거의 지질학적 기록으로 부터의 학습(리뷰)

Abstract

Ocean acidification is a pressing concern related to atmospheric carbon dioxide concentrations and bio-diversity in the ocean. Geochemical records concerning this theme may provide valuable information on both topics, including future advances in research on ocean acidification. Therefore, this paper reviews the geochemical records of the past ocean acidification, and suggests main themes related to acidification. One of best examples of ocean acidification is the event that occurred at the Paleocene-Eocene thermal maximum (PETM), approximately 55 Mya (Zachos et al., 2005). Recent advances in acidification study have involved nine themes: future scenarios of ocean acidification; effects of changes in seawater chemistry on nutrients and metal speciation; paleoceanographic perspectives; mechanisms of calcification; impact on benthic and pelagic calcifiers; physiological effects from microbes to fish; adaptation and micro-evolution; fisheries and food webs; and impact on biogeochemical cycling and feedback to the climate system (Orr et al., 2009). Further study is necessary to understand and determine future perspectives on acidification.