Ecology of newly formed sea ice in the Weddell Sea, Antarctica Ⅰ. chlorophyll a and nutrients

ADVANCES IN POLAR SCIENCE ›› 1997, Vol. 8 ›› Issue (1-English): 18-26.

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Ecology of newly formed sea ice in the Weddell Sea, Antarctica Ⅰ. chlorophyll a and nutrients

Wang Zipan¹, G. Dieckmann²and R. Gardinger³

¹Second Institute of Oceanography, SOA, Hangzhou 310012, China ²Alfred Wegener Institute for Marine and Polar Research, Bremerhaven 27570, Germany ³Institute for Polar Ecology, Kiel D-24148, Germany

Online:1947-03-30 Published:1947-03-30
Contact: Wang Zipan

Abstract

Abstract:

Textural composition, chlorophyll a and nutrients (phosphate, nitrate and silicate) of newly formed sea ice from the Weddell Sea, Antarctica, were analyzed during austral autumn in 1992. Frazil ice, congelation ice and mixed frazil/congelation ice were the main textural types. Mean concentrations of chlorophyll a and nutrients in sea ice were varied considerably with ice texture. High chlorophyll a occurred mostly in ice floes consisting predominantly or mainly of frazil ice. Nutrients showed an inverse relationship being significantly lower in frazil ice than in congelation ice. Similar observations were made for one year old sea ice.

Key words: sea ice, chlorophyll a, nutrients, Antarctica

Wang Zipan, G. Dieckmann, R. Gardinger. Ecology of newly formed sea ice in the Weddell Sea, Antarctica Ⅰ. chlorophyll a and nutrients[J]. ADVANCES IN POLAR SCIENCE, 1997, 8(1-English): 18-26.

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Ecology of newly formed sea ice in the Weddell Sea, Antarctica Ⅰ. chlorophyll a and nutrients

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