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| Titel |
Near-ubiquity of ice-edge blooms in the Arctic |
| VerfasserIn |
M. Perrette, A. Yool, G. D. Quartly, E. E. Popova |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 8, no. 2 ; Nr. 8, no. 2 (2011-02-25), S.515-524 |
| Datensatznummer |
250005456
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| Publikation (Nr.) |
 copernicus.org/bg-8-515-2011.pdf |
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| Zusammenfassung |
| 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. |
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