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Perrette et al 2011, Near-ubiquity of ice-edge blooms in the Arctic.pdf2.33 MBAdobe PDFView/Open
Title: Near-ubiquity of ice-edge blooms in the Arctic
Authors: Perrette, M.Yool, A.Quartly, G.D.Popova, E.E.
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Issue Date: 2011
Published in: Biogeosciences Vol. 8 (2011), No. 2
Publisher: Göttingen : Copernicus GmbH
Abstract: Ice-edge blooms are significant features of Arctic primary production, yet have received relatively little attention. Here we combine satellite ocean colour and sea-ice data in a pan-Arctic study. Ice-edge blooms occur in all seasonally ice-covered areas and from spring to late summer, being observed in 77-89% of locations for which adequate data exist, and usually peaking within 20 days of ice retreat. They sometimes form long belts along the ice-edge (greater than 100 km), although smaller structures were also found. The bloom peak is on average more than 1 mg m-3, with major blooms more than 10 mg m -3, and is usually located close to the ice-edge, though not always. Some propagate behind the receding ice-edge over hundreds of kilometres and over several months, while others remain stationary. The strong connection between ice retreat and productivity suggests that the ongoing changes in Arctic sea-ice may have a significant impact on higher trophic levels and local fish stocks.
Keywords: algal bloom; data interpretation; ice cover; ice retreat; ocean color; primary production; sea ice; seasonality; trophic level; Arctic Ocean
DDC: 550
License: CC BY 3.0 Unported
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