Publikationsdatum:
2013-02-16
Beschreibung:
In the Arctic, under-ice primary production is limited to summer months and is restricted not only by ice thickness and snow cover but also by the stratification of the water column, which constrains nutrient supply for algal growth. Research Vessel Polarstern visited the ice-covered eastern-central basins between 82 degrees to 89 degrees N and 30 degrees to 130 degrees 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 grams of carbon per square meter to the deep-sea floor of the central Arctic basins. Data from this cruise will contribute to assessing the effect of current climate change on Arctic productivity, biodiversity, and ecological function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boetius, Antje -- Albrecht, Sebastian -- Bakker, Karel -- Bienhold, Christina -- Felden, Janine -- Fernandez-Mendez, Mar -- Hendricks, Stefan -- Katlein, Christian -- Lalande, Catherine -- Krumpen, Thomas -- Nicolaus, Marcel -- Peeken, Ilka -- Rabe, Benjamin -- Rogacheva, Antonina -- Rybakova, Elena -- Somavilla, Raquel -- Wenzhofer, Frank -- RV Polarstern ARK27-3-Shipboard Science Party -- New York, N.Y. -- Science. 2013 Mar 22;339(6126):1430-2. doi: 10.1126/science.1231346. Epub 2013 Feb 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, 27515 Bremerhaven, Germany. antje.boetius@awi.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23413190" target="_blank"〉PubMed〈/a〉
Schlagwort(e):
Animals
;
Arctic Regions
;
Biodiversity
;
*Biomass
;
Carbon Cycle
;
Climate Change
;
*Diatoms/cytology/growth & development
;
*Ecosystem
;
Freezing
;
Geologic Sediments
;
*Ice Cover
;
Sea Cucumbers
;
*Seawater
Print ISSN:
0036-8075
Digitale ISSN:
1095-9203
Thema:
Biologie
,
Chemie und Pharmazie
,
Informatik
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
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