Benthic foraminifera communities are sensitive to methane emissions and methane hydrate dissociation. We are developing multi-proxy approaches focusing on changes in methane release and ocean acidification related benthic responses.
To provide records for the global background signal of greenhouse gases and climate change, we will investigate areas largely unaffected by methane and use them as control areas. We will follow the development in seep areas by yearly sampling to study eventual changes in methane release and ocean acidification related to methane emissions over the CAGE project period, using several parameters.
Geochemical records from measurements of the foraminifera shells and fauna analyses will help us evaluate the changes in methane emissions, while studies of living and fossil species distribution and abundance of the benthic foraminifera community in methane seep areas will indicate the degree of methane release through time.
About the research area leader
Tine Rasmussen is a professor at the Department of Geology, UiT The Arctic University of Norway. Her research interests include paleoceanography, paleoclimate, paleoecology, micropaleontology, abrupt climate and oceanographic changes, long time series, Arctic, sub-Arctic and subtropical areas.
Tine holds a PhD degree in marine science/micropaleontogy from the University of Aarhus in Denmark, and has professional experience from the Royal Netherlands Institute for Sea Research (NIOZ, the Netherlands), the University of Copenhagen (Denmark), Woods Hole Oceanographic Institution (USA), Lund University (Sweden) and The University Centre in Svalbard (UNIS, Spitsbergen).