Acoustic properties of Salpa thompsoni.
Salps are common members of the world oceans planktonic community (Madin, et.al., 2006). In the southern ocean, both krill (Euphausia superba) and salps (Salpa thompsoni) can occur in dense aggregations (Loeb et al, 2009, Atkinson et al. 2004, Woodd-Walker et al., 2003). Krill, an important part of...
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ftimr:oai:imr.brage.unit.no:11250/102976 2023-05-15T13:44:00+02:00 Acoustic properties of Salpa thompsoni. Wiebe, Peter H. Chu, Dezhang Kaartvedt, Stein Hundt, Anna (Hölter) Melle, Webjørn Ona, Egil Batta-Lona, Paola 2009 application/pdf http://hdl.handle.net/11250/102976 eng eng ICES ICES CM documents;2009 / I:01 This report is not to be quoted without prior consultation with the General Secretary. http://hdl.handle.net/11250/102976 5 s. acoustics akustikk VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 Working paper 2009 ftimr 2021-09-23T20:14:37Z Salps are common members of the world oceans planktonic community (Madin, et.al., 2006). In the southern ocean, both krill (Euphausia superba) and salps (Salpa thompsoni) can occur in dense aggregations (Loeb et al, 2009, Atkinson et al. 2004, Woodd-Walker et al., 2003). Krill, an important part of pelagic food webs, are prey of many Antarctic marine mammal, sea bird, penguin, and fish species. They are also subject to a significant fishery. Each year there are krill surveys using high frequency acoustics scattering techniques supplemented by ground truthing with macrozooplankton nets and pelagic trawls to provide the data from which sound scientific advice about harvesting levels can be made (Madureira et al, 1993; Brierley and Waktins, 1996; SC-CAMLAR, 2000). While salps do not often form krill-like aggregations, they do aggregate and form dense layers like those that krill are also known to occur in. Recent studies suggest that the salps have an acoustic frequency response similar to that of krill and the ability to discriminate the two groups was a problem (Woodd-Walker et al., 2003). Our study was undertaken to understand how this might be possible. Report Antarc* Antarctic Euphausia superba Southern Ocean Institute for Marine Research: Brage IMR Antarctic Atkinson ENVELOPE(-85.483,-85.483,-78.650,-78.650) Southern Ocean |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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language |
English |
topic |
acoustics akustikk VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 |
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acoustics akustikk VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 Wiebe, Peter H. Chu, Dezhang Kaartvedt, Stein Hundt, Anna (Hölter) Melle, Webjørn Ona, Egil Batta-Lona, Paola Acoustic properties of Salpa thompsoni. |
topic_facet |
acoustics akustikk VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 |
description |
Salps are common members of the world oceans planktonic community (Madin, et.al., 2006). In the southern ocean, both krill (Euphausia superba) and salps (Salpa thompsoni) can occur in dense aggregations (Loeb et al, 2009, Atkinson et al. 2004, Woodd-Walker et al., 2003). Krill, an important part of pelagic food webs, are prey of many Antarctic marine mammal, sea bird, penguin, and fish species. They are also subject to a significant fishery. Each year there are krill surveys using high frequency acoustics scattering techniques supplemented by ground truthing with macrozooplankton nets and pelagic trawls to provide the data from which sound scientific advice about harvesting levels can be made (Madureira et al, 1993; Brierley and Waktins, 1996; SC-CAMLAR, 2000). While salps do not often form krill-like aggregations, they do aggregate and form dense layers like those that krill are also known to occur in. Recent studies suggest that the salps have an acoustic frequency response similar to that of krill and the ability to discriminate the two groups was a problem (Woodd-Walker et al., 2003). Our study was undertaken to understand how this might be possible. |
format |
Report |
author |
Wiebe, Peter H. Chu, Dezhang Kaartvedt, Stein Hundt, Anna (Hölter) Melle, Webjørn Ona, Egil Batta-Lona, Paola |
author_facet |
Wiebe, Peter H. Chu, Dezhang Kaartvedt, Stein Hundt, Anna (Hölter) Melle, Webjørn Ona, Egil Batta-Lona, Paola |
author_sort |
Wiebe, Peter H. |
title |
Acoustic properties of Salpa thompsoni. |
title_short |
Acoustic properties of Salpa thompsoni. |
title_full |
Acoustic properties of Salpa thompsoni. |
title_fullStr |
Acoustic properties of Salpa thompsoni. |
title_full_unstemmed |
Acoustic properties of Salpa thompsoni. |
title_sort |
acoustic properties of salpa thompsoni. |
publisher |
ICES |
publishDate |
2009 |
url |
http://hdl.handle.net/11250/102976 |
long_lat |
ENVELOPE(-85.483,-85.483,-78.650,-78.650) |
geographic |
Antarctic Atkinson Southern Ocean |
geographic_facet |
Antarctic Atkinson Southern Ocean |
genre |
Antarc* Antarctic Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Euphausia superba Southern Ocean |
op_source |
5 s. |
op_relation |
ICES CM documents;2009 / I:01 This report is not to be quoted without prior consultation with the General Secretary. http://hdl.handle.net/11250/102976 |
_version_ |
1766195759088140288 |