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 Armstromg; 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 Armstromg, Nicholas W. Millard, Steven D. McPhail, Peter Stevenson, Miles Pebody, James Perrett, Mark Squires, Douglas G. Bone, Gwyn Griffiths

Aberdeen Centre For Environmental Sustainability

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

229 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 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.

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

Keywords

Northern Weddell Sea
Euphausia-superba
acoustic observations
extent
zone

Access to Document

10.1126/science.1068574

Cite this

@article{3f745f2d74d74516983c455aac10eb4e,

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 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.",

keywords = "Northern Weddell Sea, Euphausia-superba, acoustic observations, extent, zone",

author = "Brierley, {Andrew S.} and Fernandes, {Paul G.} and Brandon, {Mark A.} and Frederick Armstromg 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",

month = mar,

day = "8",

doi = "10.1126/science.1068574",

language = "English",

volume = "295",

pages = "1890--1892",

journal = "Science",

issn = "0036-8075",

publisher = "AMER ASSOC ADVANCEMENT SCIENCE",

number = "5561",

}

TY - JOUR

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 - Armstromg, 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

N2 - 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.

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 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.

KW - Northern Weddell Sea

KW - Euphausia-superba

KW - acoustic observations

KW - extent

KW - zone

U2 - 10.1126/science.1068574

DO - 10.1126/science.1068574

M3 - Article

SN - 0036-8075

VL - 295

SP - 1890

EP - 1892

JO - Science

JF - Science

IS - 5561

ER -

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

Abstract

Keywords

Access to Document

Fingerprint

Cite this