Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement Method
During surveys to assess fish stocks, the acoustic scattering properties of the fish population are required to obtain stock size measurements. The recently developed dual beam technique of target strength measurement has shown great promise as a method for fish target strength measurement. An impro...
Published in: | Journal of the Fisheries Research Board of Canada |
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Canadian Science Publishing
1979
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Online Access: | http://dx.doi.org/10.1139/f79-149 http://www.nrcresearchpress.com/doi/pdf/10.1139/f79-149 |
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crcansciencepubl:10.1139/f79-149 2024-06-23T07:57:11+00:00 Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement Method Traynor, J. J. Ehrenberg, J. E. 1979 http://dx.doi.org/10.1139/f79-149 http://www.nrcresearchpress.com/doi/pdf/10.1139/f79-149 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 36, issue 9, page 1065-1071 ISSN 0015-296X journal-article 1979 crcansciencepubl https://doi.org/10.1139/f79-149 2024-06-13T04:10:50Z During surveys to assess fish stocks, the acoustic scattering properties of the fish population are required to obtain stock size measurements. The recently developed dual beam technique of target strength measurement has shown great promise as a method for fish target strength measurement. An improved dual beam target strength measurement system is described, and we report the application to a marine population of walleye pollock (Theragra chalcogramma). In addition, we discuss field calibration using a ping-pong ball as a standard target. Results of target strength measurements of the fish and ping-pong ball are compared with predicted values based on simulation analyses of the technique operating under the noise conditions observed in the field. The agreement between field results and theoretical predictions were quite good. Key words: hydroacoustic, walleye, pollock, dual beam, target strength measurement, fish assessment Article in Journal/Newspaper Theragra chalcogramma Canadian Science Publishing Journal of the Fisheries Research Board of Canada 36 9 1065 1071 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
During surveys to assess fish stocks, the acoustic scattering properties of the fish population are required to obtain stock size measurements. The recently developed dual beam technique of target strength measurement has shown great promise as a method for fish target strength measurement. An improved dual beam target strength measurement system is described, and we report the application to a marine population of walleye pollock (Theragra chalcogramma). In addition, we discuss field calibration using a ping-pong ball as a standard target. Results of target strength measurements of the fish and ping-pong ball are compared with predicted values based on simulation analyses of the technique operating under the noise conditions observed in the field. The agreement between field results and theoretical predictions were quite good. Key words: hydroacoustic, walleye, pollock, dual beam, target strength measurement, fish assessment |
format |
Article in Journal/Newspaper |
author |
Traynor, J. J. Ehrenberg, J. E. |
spellingShingle |
Traynor, J. J. Ehrenberg, J. E. Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement Method |
author_facet |
Traynor, J. J. Ehrenberg, J. E. |
author_sort |
Traynor, J. J. |
title |
Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement Method |
title_short |
Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement Method |
title_full |
Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement Method |
title_fullStr |
Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement Method |
title_full_unstemmed |
Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement Method |
title_sort |
evaluation of the dual beam acoustic fish target strength measurement method |
publisher |
Canadian Science Publishing |
publishDate |
1979 |
url |
http://dx.doi.org/10.1139/f79-149 http://www.nrcresearchpress.com/doi/pdf/10.1139/f79-149 |
genre |
Theragra chalcogramma |
genre_facet |
Theragra chalcogramma |
op_source |
Journal of the Fisheries Research Board of Canada volume 36, issue 9, page 1065-1071 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f79-149 |
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Journal of the Fisheries Research Board of Canada |
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36 |
container_issue |
9 |
container_start_page |
1065 |
op_container_end_page |
1071 |
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1802650693654282240 |