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

Andrew S. Brierley; Paul G. Fernandes; Mark A. Brandon; Frederick Armstrong; Nicholas W. Millard; Steven D. McPhail; Peter Stevenson; Miles Pebody; James Perrett; Mark Squires; Douglas G. Bone; Gwyn Griffiths

doi:10.1126/science.1068574

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

Andrew S. Brierley^*, Paul G. Fernandes, Mark A. Brandon, Frederick Armstrong, Nicholas W. Millard, Steven D. McPhail, Peter Stevenson, Miles Pebody, James Perrett, Mark Squires, Douglas G. Bone, Gwyn Griffiths

^*Corresponding author for this work

School of Energy, Geoscience, Infrastructure and Society

Research output: Contribution to journal › Article › peer-review

237 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1890-1892
Number of pages	3
Journal	Science
Volume	295
Issue number	5561
DOIs	https://doi.org/10.1126/science.1068574
Publication status	Published - 8 Mar 2002

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

abstract = "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.",

author = "Brierley, {Andrew S.} and Fernandes, {Paul G.} and Brandon, {Mark A.} and Frederick Armstrong and Millard, {Nicholas W.} and McPhail, {Steven D.} and Peter Stevenson and Miles Pebody and James Perrett and Mark Squires and Bone, {Douglas G.} and Gwyn Griffiths",

year = "2002",

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T1 - Antarctic krill under sea ice

T2 - Elevated abundance in a narrow band just south of ice edge

AU - Brierley, Andrew S.

AU - Fernandes, Paul G.

AU - Brandon, Mark A.

AU - Armstrong, Frederick

AU - Millard, Nicholas W.

AU - McPhail, Steven D.

AU - Stevenson, Peter

AU - Pebody, Miles

AU - Perrett, James

AU - Squires, Mark

AU - Bone, Douglas G.

AU - Griffiths, Gwyn

PY - 2002/3/8

Y1 - 2002/3/8

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AB - 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.

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

Abstract

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