The MALINA oceanographic expedition: how do changes in ice cover, permafrost and UV radiation impact biodiversity and biogeochemical fluxes in the Arctic Ocean?

• Published in: Earth System Science Data
• Main Authors: P. Massicotte, R. M. W. Amon, D. Antoine, P. Archambault, S. Balzano, S. Bélanger, R. Benner, D. Boeuf, A. Bricaud, F. Bruyant, G. Chaillou, M. Chami, B. Charrière, J. Chen, H. Claustre, P. Coupel, N. Delsaut, D. Doxaran, J. Ehn, C. Fichot, M.-H. Forget, P. Fu, J. Gagnon, N. Garcia, B. Gasser, J.-F. Ghiglione, G. Gorsky, M. Gosselin, P. Gourvil, Y. Gratton, P. Guillot, H. J. Heipieper, S. Heussner, S. B. Hooker, Y. Huot, C. Jeanthon, W. Jeffrey, F. Joux, K. Kawamura, B. Lansard, E. Leymarie, H. Link, C. Lovejoy, C. Marec, D. Marie, J. Martin, G. Massé, A. Matsuoka, V. McKague, A. Mignot
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2021
• Subjects: envir; geo; Arctic; Arctic Ocean; Mackenzie River; Beaufort Sea; Ice; Mackenzie river; permafrost; Phytoplankton; Zooplankton
• Online Access: https://doi.org/10.5194/essd-13-1561-2021; https://essd.copernicus.org/articles/13/1561/2021/essd-13-1561-2021.pdf; https://doaj.org/article/974fdb4fa5e8460fbe5f42e6d3606b81

The MALINA oceanographic campaign was conducted during summer 2009 to investigate the carbon stocks and the processes controlling the carbon fluxes in the Mackenzie River estuary and the Beaufort Sea. During the campaign, an extensive suite of physical, chemical and biological variables were measured across seven shelf–basin transects (south–north) to capture the meridional gradient between the estuary and the open ocean. Key variables such as temperature, absolute salinity, radiance, irradiance, nutrient concentrations, chlorophyll a concentration, bacteria, phytoplankton and zooplankton abundance and taxonomy, and carbon stocks and fluxes were routinely measured onboard the Canadian research icebreaker CCGS Amundsen and from a barge in shallow coastal areas or for sampling within broken ice fields. Here, we present the results of a joint effort to compile and standardize the collected data sets that will facilitate their reuse in further studies of the changing Arctic Ocean. The data set is available at https://doi.org/10.17882/75345 (Massicotte et al., 2020).