Macrofaunal communities on the continental shelf off Victoria Land (Ross Sea, Antarctica)
Macrofaunal communities on the continental shelf off Victoria Land (Ross Sea, Antarctica)
In austral summer 2004 benthic macrofauna was sampled along a latitudinal gradient along the northern Victoria Land coast (Ross Sea). An Agassiz trawl was used for semi-quantitative data collection of macrozoobenthos at depths from 84 to 537 m. Multivariate analysis of abundance of higher taxonomic units discriminated between the four sample sites along the latitudinal gradient. A SIMPROF analysis emphasized these geographical clusters, as the samples showed no significant differences within each cluster. A change in community structure with depth was not observed. The dominant taxonomic groups along the Victoria Land coast were Echinodermata (39%), Arthropoda (24%), Polychaeta (14%), and Mollusca (12%), not accounting for colonial organisms. Thus, the overall structure of the benthic community off the Victoria Land coast is comparable to other Antarctic regions and shows a closer relationship to the eastern Weddell Sea shelf, which may be attributable to the extensive impact of grounded ice affecting both areas.
Agassiz trawl, cluster analysis, macrozoobenthos, SIMPROF, latitudinal gradient
449-455
Rehm, Peter
d2a92d3d-9a5b-4706-b3f8-14e7ce022b40
Hooke, Rachel
cc642707-77fe-4240-939b-f27af3aa8f99
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
22 April 2011
Rehm, Peter
d2a92d3d-9a5b-4706-b3f8-14e7ce022b40
Hooke, Rachel
cc642707-77fe-4240-939b-f27af3aa8f99
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Rehm, Peter, Hooke, Rachel and Thatje, Sven
(2011)
Macrofaunal communities on the continental shelf off Victoria Land (Ross Sea, Antarctica).
Antarctic Science, 23 (5), .
(doi:10.1017/S0954102011000290).
Abstract
In austral summer 2004 benthic macrofauna was sampled along a latitudinal gradient along the northern Victoria Land coast (Ross Sea). An Agassiz trawl was used for semi-quantitative data collection of macrozoobenthos at depths from 84 to 537 m. Multivariate analysis of abundance of higher taxonomic units discriminated between the four sample sites along the latitudinal gradient. A SIMPROF analysis emphasized these geographical clusters, as the samples showed no significant differences within each cluster. A change in community structure with depth was not observed. The dominant taxonomic groups along the Victoria Land coast were Echinodermata (39%), Arthropoda (24%), Polychaeta (14%), and Mollusca (12%), not accounting for colonial organisms. Thus, the overall structure of the benthic community off the Victoria Land coast is comparable to other Antarctic regions and shows a closer relationship to the eastern Weddell Sea shelf, which may be attributable to the extensive impact of grounded ice affecting both areas.
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Published date: 22 April 2011
Keywords:
Agassiz trawl, cluster analysis, macrozoobenthos, SIMPROF, latitudinal gradient
Organisations:
Ocean Biochemistry & Ecosystems
Identifiers
Local EPrints ID: 194915
URI: http://eprints.soton.ac.uk/id/eprint/194915
ISSN: 0954-1020
PURE UUID: 7f9ab92d-b58e-4b88-ab8b-dff3841e7dbe
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Date deposited: 17 Oct 2011 10:25
Last modified: 14 Mar 2024 04:01
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Author:
Peter Rehm
Author:
Rachel Hooke
Author:
Sven Thatje
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