Antarctic krill under sea ice: Elevated abundance in a narrow band just south of ice edge

被引：210

作者：

Brierley, AS

Fernandes, PG

Brandon, MA

Armstromg, F

Millard, NW

McPhail, SD

Stevenson, P

Pebody, M

Perrett, J

Squires, M

Bone, DG

Griffiths, G

机构：

[1] British Antarctic Survey, Cambridge CB3 0ET, England

[2] Marine Lab Aberdeen, Fisheries Res Serv, Aberdeen AB11 9DB, Scotland

[3] Open Univ, Dept Earth Sci, Milton Keynes MK7 6AA, Bucks, England

[4] Southampton Oceanog Ctr, Southampton SO14 3ZH, Hants, England

来源：

SCIENCE | 2002年 / 295卷 / 5561期

关键词：

D O I：

10.1126/science.1068574

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：

We surveyed Antarctic krill (Euphausia superba) under sea ice using the autonomous underwater vehicle Autosub-2. Krill were concentrated within a band under ice between 1 and 13 kilometers south of the ice edge. Within this band, krill densities were fivefold greater than that of open water. The under-ice environment has tong been considered an important habitat for krill, but sampling difficulties have previously prevented direct observations under ice over the scale necessary for robust krill density estimation. Autosub-2 enabled us to make continuous high-resolution measurements of krill density under ice reaching 27 kilometers beyond the ice edge.

引用

页码：1890 / 1892

页数：3

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[1] Primary production in Southern Ocean waters [J].