Target Strength of encaged Atlantic redfish (Sebastes spp.)

Redfish ( Sebastes spp.) were caught at sea with feather hooks, kept alive in sea cages for >12 hours at 30 m depth, then transferred to cages at 10 m depth for another 12 h. Most fish survived this procedure in excellent condition. A total of 16 fish of length 24.5–30 cm were placed one at a tim...

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Bibliographic Details
Published in:ICES Journal of Marine Science
Main Authors: Gauthier, Stéphane, Rose, George A.
Format: Text
Language:English
Published: Oxford University Press 2001
Subjects:
Online Access:http://icesjms.oxfordjournals.org/cgi/content/short/58/3/562
https://doi.org/10.1006/jmsc.2001.1066
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spelling fthighwire:oai:open-archive.highwire.org:icesjms:58/3/562 2023-05-15T15:27:58+02:00 Target Strength of encaged Atlantic redfish (Sebastes spp.) Gauthier, Stéphane Rose, George A. 2001-01-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/58/3/562 https://doi.org/10.1006/jmsc.2001.1066 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/58/3/562 http://dx.doi.org/10.1006/jmsc.2001.1066 Copyright (C) 2001, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Regular Articles TEXT 2001 fthighwire https://doi.org/10.1006/jmsc.2001.1066 2013-05-27T04:12:05Z Redfish ( Sebastes spp.) were caught at sea with feather hooks, kept alive in sea cages for >12 hours at 30 m depth, then transferred to cages at 10 m depth for another 12 h. Most fish survived this procedure in excellent condition. A total of 16 fish of length 24.5–30 cm were placed one at a time in an acoustically inert monofilament cage where target strength (TS) was measured for two hours using a 38 kHz split-beam echo-sounder. An underwater video camera enabled continuous monitoring of fish and cage. The best fit length based regression obtained from these data was TS=19 log [length (cm)]−66.6, in the standard format: TS=20 log [length (cm)]−68.1 (r2=0.18). TS varied by less than 4 dB over a range of tilt angles from −50° to 70° off dorsal aspect. Text Atlantic redfish HighWire Press (Stanford University) ICES Journal of Marine Science 58 3 562 568
institution Open Polar
collection HighWire Press (Stanford University)
op_collection_id fthighwire
language English
topic Regular Articles
spellingShingle Regular Articles
Gauthier, Stéphane
Rose, George A.
Target Strength of encaged Atlantic redfish (Sebastes spp.)
topic_facet Regular Articles
description Redfish ( Sebastes spp.) were caught at sea with feather hooks, kept alive in sea cages for >12 hours at 30 m depth, then transferred to cages at 10 m depth for another 12 h. Most fish survived this procedure in excellent condition. A total of 16 fish of length 24.5–30 cm were placed one at a time in an acoustically inert monofilament cage where target strength (TS) was measured for two hours using a 38 kHz split-beam echo-sounder. An underwater video camera enabled continuous monitoring of fish and cage. The best fit length based regression obtained from these data was TS=19 log [length (cm)]−66.6, in the standard format: TS=20 log [length (cm)]−68.1 (r2=0.18). TS varied by less than 4 dB over a range of tilt angles from −50° to 70° off dorsal aspect.
format Text
author Gauthier, Stéphane
Rose, George A.
author_facet Gauthier, Stéphane
Rose, George A.
author_sort Gauthier, Stéphane
title Target Strength of encaged Atlantic redfish (Sebastes spp.)
title_short Target Strength of encaged Atlantic redfish (Sebastes spp.)
title_full Target Strength of encaged Atlantic redfish (Sebastes spp.)
title_fullStr Target Strength of encaged Atlantic redfish (Sebastes spp.)
title_full_unstemmed Target Strength of encaged Atlantic redfish (Sebastes spp.)
title_sort target strength of encaged atlantic redfish (sebastes spp.)
publisher Oxford University Press
publishDate 2001
url http://icesjms.oxfordjournals.org/cgi/content/short/58/3/562
https://doi.org/10.1006/jmsc.2001.1066
genre Atlantic redfish
genre_facet Atlantic redfish
op_relation http://icesjms.oxfordjournals.org/cgi/content/short/58/3/562
http://dx.doi.org/10.1006/jmsc.2001.1066
op_rights Copyright (C) 2001, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer
op_doi https://doi.org/10.1006/jmsc.2001.1066
container_title ICES Journal of Marine Science
container_volume 58
container_issue 3
container_start_page 562
op_container_end_page 568
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