AUTUMN BLOOM OF ANTARCTIC PACK-ICE ALGAE

被引：110

作者：

FRITSEN, CH

LYTLE, VI

ACKLEY, SF

SULLIVAN, CW

机构：

[1] UNIV TASMANIA,ANTARCT COOPERAT RES CTR,HOBART,TAS 7001,AUSTRALIA

[2] USA,COLD REG RES & ENGN LAB,HANOVER,NH 03755

[3] UNIV SO CALIF,HANCOCK INST MARINE STUDIES,LOS ANGELES,CA 90089

来源：

SCIENCE | 1994年 / 266卷 / 5186期

关键词：

D O I：

10.1126/science.266.5186.782

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：782 / 784

页数：3

共 25 条

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