Polar ocean ecosystems in a changing world

被引：360

作者：

Smetacek, V

Nicol, S

机构：

[1] Alfred Wegener Inst Polar & Marine Res, D-27570 Bremerhaven, Germany

[2] Australian Antarctic Div, Dept Environm & Heritage, Kingston, Tas 7050, Australia

来源：

NATURE | 2005年 / 437卷 / 7057期

关键词：

D O I：

10.1038/nature04161

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：

Polar organisms have adapted their seasonal cycles to the dynamic interface between ice and water. This interface ranges from the micrometre-sized brine channels within sea ice to the planetary-scale advance and retreat of sea ice. Polar marine ecosystems are particularly sensitive to climate change because small temperature differences can have large effects on the extent and thickness of sea ice. Little is known about the interactions between large, long-lived organisms and their planktonic food supply. Disentangling the effects of human exploitation of upper trophic levels from basin-wide, decade-scale climate cycles to identify long-term, global trends is a daunting challenge facing polar bio-oceanography.

引用

页码：362 / 368

页数：7

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