Biogeochemical characterization of pennate diatom and Melosira arctica ice algal aggregates in the Central Arctic Ocean collected in summer 2011 and 2012

• Main Authors: Fernández-Méndez, Mar, Wenzhöfer, Frank, Peeken, Ilka, Sørensen, Heidi L, Glud, Ronnie N, Hendricks, Stefan, Nicolaus, Marcel, Katlein, Christian, Nöthig, Eva-Maria, Bakker, Karel, Boetius, Antje
• Format: Dataset
• Language: English
• Published: PANGAEA 2014
• Subjects: ABYSS; Algae aggregate; size; Arctic Ocean; ARK-XXVI/3; ARK-XXVII/3; Assessment of bacterial life and matter cycling in deep-sea surface sediments; AWI_BioOce; Bacterial organic carbon normalized to particulate organic carbon; Biological Oceanography @ AWI; Carbon; organic; dissolved normalized to particulate organic carbon; particulate; Carbon/Chlorophyll a ratio; Carbon/Nitrogen ratio; Chlorophyll a/chloroplastic pigment equivalents ratio; Chlorophyll a normalized to particulate organic carbon; Color description; Comment; Date/Time of event; Description; Event label; Gear; Habitat; ICE; Ice station; Ice station #1; Ice station #2; Ice station #3; Ice station #4; Ice station #5; Ice station #7; Irradiance; Latitude of event; Life stage; Longitude of event; Melt pond coverage on sea ice; Melt pond depth; Method comment; Net primary production of carbon normalized to particulate organic carbon; Nitrate; Normalized to particulate organic carbon; Number of measurements; Optional event label; Partical organic nitrogen normalized to particulate organic carbon; Phosphate; Polarstern; Arctic; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.832345; https://doi.org/10.1594/PANGAEA.832345

Sea-ice diatoms are known to accumulate in large aggregates in and under the sea ice including melt ponds. In the Arctic, they can contribute substantially to particle export when sinking from the ice. The role and regulation of microbial aggregation in the highly seasonal, nutrient- and light-limit...