Publication Date:
2002-03-09
Description:
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 long 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.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brierley, Andrew S -- Fernandes, Paul G -- Brandon, Mark A -- Armstrong, Frederick -- Millard, Nicholas W -- McPhail, Steven D -- Stevenson, Peter -- Pebody, Miles -- Perrett, James -- Squires, Mark -- Bone, Douglas G -- Griffiths, Gwyn -- New York, N.Y. -- Science. 2002 Mar 8;295(5561):1890-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, UK. andrew.brierley@st-andrews.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11884754" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Antarctic Regions
;
Crustacea/*physiology
;
*Ecosystem
;
*Environment
;
*Ice
;
Oceans and Seas
;
Population Density
;
Regression Analysis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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