Autumn bloom of Antarctic pack-ice algae

An autumn bloom of sea-ice algae was observed from February to June of 1992 within the upper 0.4 meter of multiyear ice in the Western Weddell Sea, Antarctica. The bloom was reliant on the freezing of porous areas within the ice that initiated a vertical exchange of nutrient-depleted brine with nutr...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1994-11, Vol.266 (5186), p.782-784
Main Authors: Fritsen, C.H, Lytle, V.I, Ackley, S.F, Sullivan, C.W
Format: Article
Language:English
Subjects:
ALGAE
Algal blooms
Animal and plant ecology
Animal, plant and microbial ecology
AUTOMNE
Biological and medical sciences
Brines
Chlorophylls
Community Relations
DISPONIBILIDAD DE NUTRIENTES
DISPONIBILITE D'ELEMENT NUTRITIF
ECOLOGIA
ECOLOGIA MARINA
ECOLOGIE
ECOLOGIE MARINE
Ecology
Environmental aspects
FITOPLANCTON
Freezing
Fundamental and applied biological sciences. Psychology
GLACE
HIELO
Ice
Inhalants
Marine
Nitrates
Nitrites
OCEAN ANTARCTIQUE
OCEANO ANTARTICO
OTONO
Pack ice
PHYTOPLANCTON
Salinity
Sea ice
Sea water
Sea water ecosystems
Synecology
Water
Water bloom
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Summary:An autumn bloom of sea-ice algae was observed from February to June of 1992 within the upper 0.4 meter of multiyear ice in the Western Weddell Sea, Antarctica. The bloom was reliant on the freezing of porous areas within the ice that initiated a vertical exchange of nutrient-depleted brine with nutrient-rich seawater. This replenishment of nutrients to the algal community allowed the net production of 1760 milligrams of carbon and 200 milligrams of nitrogen per square meter of ice. The location of this autumn bloom is unlike that of spring blooms previously observed in both polar regions
ISSN:0036-8075
1095-9203
DOI:10.1126/science.266.5186.782