Export of algal biomass from the melting Arctic sea ice

Autoria(s): Boetius, Antje; Albrecht, Sebastian; Bakker, Karel; Bienhold, Christina; Felden, Janine; Fernández-Méndez, Mar; Hendricks, Stefan; Katlein, Christian; Lalande, Catherine; Krumpen, Thomas; Nicolaus, Marcel; Peeken, Ilka; Rabe, Benjamin; Rogacheva, Antonina; Rybakova, Elena; Somavilla Cabrillo, Raquel; Wenzhöfer, Frank; ARK-XXVII/3 Shipboard Scientific Party
Cobertura

MEDIAN LATITUDE: 83.708395 * MEDIAN LONGITUDE: 68.787401 * SOUTH-BOUND LATITUDE: 53.563960 * WEST-BOUND LONGITUDE: -0.283532 * NORTH-BOUND LATITUDE: 89.291678 * EAST-BOUND LONGITUDE: 136.977443 * DATE/TIME START: 2012-08-02T09:00:00 * DATE/TIME END: 2012-10-08T06:00:00
Data(s)

30/01/2013
Resumo

In the Arctic, under-ice primary production is limited to summer months and is not only restricted by ice thickness and snow cover but also by the stratification of the water column, which constrains nutrient supply for algal growth. RV Polarstern visited the ice-covered Eastern Central basins between 82 to 89°N and 30 to 130°E in summer 2012 when Arctic sea ice declined to a record minimum. During this cruise, we observed a widespread deposition of ice algal biomass of on average 9 g C per m**2 to the deep-sea floor of the Central Arctic basins. Data from this cruise will contribute to assessing the impact of current climate change on Arctic productivity, biodiversity, and ecological function.
Formato

application/zip, 14 datasets
Identificador

https://doi.pangaea.de/10.1594/PANGAEA.803293

doi:10.1594/PANGAEA.803293
Idioma(s)

en
Publicador

PANGAEA
Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted
Fonte

Supplement to: Boetius, Antje; Albrecht, Sebastian; Bakker, Karel; Bienhold, Christina; Felden, Janine; Fernández-Méndez, Mar; Hendricks, Stefan; Katlein, Christian; Lalande, Catherine; Krumpen, Thomas; Nicolaus, Marcel; Peeken, Ilka; Rabe, Benjamin; Rogacheva, Antonina; Rybakova, Elena; Somavilla Cabrillo, Raquel; Wenzhöfer, Frank; ARK-XXVII/3 Shipboard Scientific Party (2013): Export of algal biomass from the melting Arctic sea ice. Science, 339(6126), 1430-1432, doi:10.1126/science.1231346
Palavras-Chave ## = Estimates include discolored patches/degraded algal patches; Algae patch size, maximum; Algae patch size, maximum, standard deviation; Algae patch size max; Algae patch size max std dev; Algal cov; Algal cover; Algal cover, standard deviation; Algal cov std dev; at 5m water depth; at 5 m water depth; at seafloor; * = Estimates include discolored patches/degraded algal patches; Bathy depth; Calculated; Chl a; Chl a/CPE; Chlorophyll a; Chlorophyll a/chloroplastic pigment equivalents ratio; Chloroplastic pigment equivalents of gut content; Chloroplastic pigment equivalents of gut content, standard deviation; Comm 2; Comm 3; Comment; Comment 2 (continued); Comment 3 (continued); Course; CPE gut; CPE gut std dev; Date/Time; DATE/TIME; Date/time end; Date/time start; Depth; Depth, bathymetric; DEPTH, sediment/rock; DEPTH, water; Depth water; Device; Device type; Diatoms; Distance, relative, X; Distance, relative, Y; Dist rel X; Dist rel Y; Diverse algae included in various ratios Porosira sp., Pleurosigma, Nitzschia sp., Fragilariopsis sp., Entomoneis sp, Chaetoceros sp., Navicula sp., Cylindrotheca and other chain-forming pennate diatoms, chloroplasts clumps.; Drift; Drift, standard deviation; Drift std dev; Estimates based on seasonal inventories of the mixed layer depth of the previous freezing season (see SOM).; Event; Gear; Ice algae, deposition of carbon; Ice algae comp; Ice algae composition; Ice algae depos C; Ice cov; Ice coverage; Ice thick max; Ice thick min; Ice thickness, maximum; Ice thickness, minimum; Ice type; in 0-1 m water depth under ice, 14C; in 0-2 m water depth; in 0-2 m water depth under ice; in sediment/gut; Label; Latitude; LATITUDE; Local-x; Local-y; Longitude; LONGITUDE; MDL; Megaf; Megafauna; Megafauna, biomass, wet mass; Megafauna abundance; Megaf biom wm; Melt pond cov; Melt pond coverage on sea ice; Melt water depth; Meteorological observation according to ASSIST protocol; Microprofiler 1; Profile #3; Sensor #30-2; Microprofiler 1; Profile #4; Sensor #31-1; Mixed layer depth; most abundant, abundance; most abundant, biomass; MUC-core #2; Profile #1; MUC-core #2; Profile #2; MUC-core #6; Profile #1; MUC-core #6; Profile #2; MWD; N/P; N/Si; navigation in 10 sec interval; navigation in 1 sec interval; Net primary production of carbon; Net primary productivity are depth integrated rates of the most upper 46 m of the arctic water column.; Net radiometer, Kipp & Zonen, CNR 4; Nitrate; Nitrogen/Phosphorus ratio; Nitrogen/Silicon ratio; NO3; NPP C; O2; of gut content; on ice; Oxygen; Oxygen microsensor, Clark type (Revsbech & Jørgensen, 1986); PAR; Phaeopigments; Pheop; Pigm Conc; Pigm Conc std dev; Pigment concentration in sediment; Pigment concentration in sediment, standard deviation; Pigments, Turner fluorometer; PP C area; Primary production of carbon per area, daily; Primary production of carbon per area, yearly; Radiation, photosynthetically active; Sal; Salinity; Sample code/label; Sea ice observation according to ASSIST protocol; Short-wave downward (GLOBAL) radiation; Short-wave downward (GLOBAL) radiation, standard deviation; Speed; Sub-ice; SWD; SWD std dev; Temp; Temperature, air; Temperature, water; Thermometer; Thermosalinograph; top 1 cm sediment layer; TTT; Ultra Short Baseline (USBL); under ice; Uniform resource locator/link to file; URL file
Tipo

Dataset
Acesso ao item digital