The acoustic properties of Salpa thompsoni
<qd> Wiebe, P. H., Chu, D., Kaartvedt, S., Hundt, A., Melle, W., Ona, E., and Batta-Lona, P. 2010. The acoustic properties of Salpa thompsoni . – ICES Journal of Marine Science, 67: 000–000. </qd>Aggregations of the salp Salpa thompsoni were encountered during the Antarctic krill and eco...
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fthighwire:oai:open-archive.highwire.org:icesjms:fsp263v2 2023-05-15T13:45:45+02:00 The acoustic properties of Salpa thompsoni Wiebe, Peter H. Chu, Dezhang Kaartvedt, Stein Hundt, Anna Melle, Webjorn Ona, Egil Batta-Lona, Paola 2009-12-10 07:59:22.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/fsp263v2 https://doi.org/10.1093/icesjms/fsp263 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/fsp263v2 http://dx.doi.org/10.1093/icesjms/fsp263 Copyright (C) 2009, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Article TEXT 2009 fthighwire https://doi.org/10.1093/icesjms/fsp263 2013-05-26T22:26:20Z <qd> Wiebe, P. H., Chu, D., Kaartvedt, S., Hundt, A., Melle, W., Ona, E., and Batta-Lona, P. 2010. The acoustic properties of Salpa thompsoni . – ICES Journal of Marine Science, 67: 000–000. </qd>Aggregations of the salp Salpa thompsoni were encountered during the Antarctic krill and ecosystem-studies cruise on the RV “G.O. Sars” from 19 February to 27 March 2008. The salp's in situ target strength ( TS ), size, number of individuals in aggregate chains, and chain angle of orientation were determined. Shipboard measurements were made of Salpa thompsoni 's material properties. Individual aggregates were mostly 45.5–60.6 mm in mean length; relatively rare solitaries were ∼100 mm. Chains ranged from 3 to at least 121 individuals, and in surface waters (<20 m), they showed no preferred angle of orientation. Sound-speed contrast ( h ) ranged from 1.0060 to 1.0201 and density contrast ( g ) estimates between 1.0000 and 1.0039. The in situ TS distributions peaked between −75 and −76 dB at 38 kHz, with a secondary peak at approximately −65 dB. TS ranged between −85 and −65 dB at 120 and 200 kHz and peaked around −74 dB. The measured in situ TS of salps reasonably matched the theoretical scattering-model predictions based on multi-individual chains. The backscattering from aggregate salps gives rise to TS values that can be similar to krill and other zooplankton with higher density and sound-speed contrasts. Text Antarc* Antarctic Antarctic Krill HighWire Press (Stanford University) Antarctic The Antarctic Batta ENVELOPE(29.816,29.816,69.797,69.797) ICES Journal of Marine Science 67 3 583 593 |
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HighWire Press (Stanford University) |
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English |
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Article Wiebe, Peter H. Chu, Dezhang Kaartvedt, Stein Hundt, Anna Melle, Webjorn Ona, Egil Batta-Lona, Paola The acoustic properties of Salpa thompsoni |
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<qd> Wiebe, P. H., Chu, D., Kaartvedt, S., Hundt, A., Melle, W., Ona, E., and Batta-Lona, P. 2010. The acoustic properties of Salpa thompsoni . – ICES Journal of Marine Science, 67: 000–000. </qd>Aggregations of the salp Salpa thompsoni were encountered during the Antarctic krill and ecosystem-studies cruise on the RV “G.O. Sars” from 19 February to 27 March 2008. The salp's in situ target strength ( TS ), size, number of individuals in aggregate chains, and chain angle of orientation were determined. Shipboard measurements were made of Salpa thompsoni 's material properties. Individual aggregates were mostly 45.5–60.6 mm in mean length; relatively rare solitaries were ∼100 mm. Chains ranged from 3 to at least 121 individuals, and in surface waters (<20 m), they showed no preferred angle of orientation. Sound-speed contrast ( h ) ranged from 1.0060 to 1.0201 and density contrast ( g ) estimates between 1.0000 and 1.0039. The in situ TS distributions peaked between −75 and −76 dB at 38 kHz, with a secondary peak at approximately −65 dB. TS ranged between −85 and −65 dB at 120 and 200 kHz and peaked around −74 dB. The measured in situ TS of salps reasonably matched the theoretical scattering-model predictions based on multi-individual chains. The backscattering from aggregate salps gives rise to TS values that can be similar to krill and other zooplankton with higher density and sound-speed contrasts. |
format |
Text |
author |
Wiebe, Peter H. Chu, Dezhang Kaartvedt, Stein Hundt, Anna Melle, Webjorn Ona, Egil Batta-Lona, Paola |
author_facet |
Wiebe, Peter H. Chu, Dezhang Kaartvedt, Stein Hundt, Anna Melle, Webjorn Ona, Egil Batta-Lona, Paola |
author_sort |
Wiebe, Peter H. |
title |
The acoustic properties of Salpa thompsoni |
title_short |
The acoustic properties of Salpa thompsoni |
title_full |
The acoustic properties of Salpa thompsoni |
title_fullStr |
The acoustic properties of Salpa thompsoni |
title_full_unstemmed |
The acoustic properties of Salpa thompsoni |
title_sort |
acoustic properties of salpa thompsoni |
publisher |
Oxford University Press |
publishDate |
2009 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/fsp263v2 https://doi.org/10.1093/icesjms/fsp263 |
long_lat |
ENVELOPE(29.816,29.816,69.797,69.797) |
geographic |
Antarctic The Antarctic Batta |
geographic_facet |
Antarctic The Antarctic Batta |
genre |
Antarc* Antarctic Antarctic Krill |
genre_facet |
Antarc* Antarctic Antarctic Krill |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/fsp263v2 http://dx.doi.org/10.1093/icesjms/fsp263 |
op_rights |
Copyright (C) 2009, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsp263 |
container_title |
ICES Journal of Marine Science |
container_volume |
67 |
container_issue |
3 |
container_start_page |
583 |
op_container_end_page |
593 |
_version_ |
1766230483197231104 |