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Paper Abstract and Keywords
Presentation 2012-08-28 15:00
Target strength pattern measurement of juvenile chum salmon (Oncorhynchus keta) in a tank by the controlled method
Kouichi Sawada, Tomohiko Matsuura, Hideaki Aono (Fisheries Research Agency), Akihiko Hashiba (Sanriku-Yamada Fisheries Cooperative) US2012-55
Abstract (in Japanese) (See Japanese page) 
(in English) Target strengths of juvenile chum salmons ($\textit{Oncorhynchus keta}$), standard body length=40.2 - 51.3 mm) from side aspect (n=12) and ventral aspect (n=3) at 70 kHz were measured as a function of an incident angle by the controlled method in a fresh water tank. Measurements were compared with predictions based on the swimbladder morphology. Swimbladder shapes were modeled as prolate spheroids with the major and minor radii which were obtained from soft X-ray images taken from the side view. Both measurements and predictions agreed well. Acoustic scattering properties of juvenile salmon can be predicted by the vacant prolate-spheroid mode series model at least within the L/$\lambda$ ($\lambda$ : wavelength) range of 2.0 - 2.5.
Keyword (in Japanese) (See Japanese page) 
(in English) juvenile salmon / swimbladder / Oncorhynchus keta / target strength pattern / prolate-spheroid modal series model / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 186, US2012-55, pp. 105-110, Aug. 2012.
Paper # US2012-55 
Date of Issue 2012-08-20 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee US  
Conference Date 2012-08-27 - 2012-08-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Pukyong National University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General, Underwater Acoustics (Co-Organization：The Marine Acoustics Society of Japan, Youngnam Chapter of The Acoustical Society of Korea) 
Paper Information
Registration To US 
Conference Code 2012-08-US 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Target strength pattern measurement of juvenile chum salmon (Oncorhynchus keta) in a tank by the controlled method 
Sub Title (in English)  
Keyword(1) juvenile salmon  
Keyword(2) swimbladder  
Keyword(3) Oncorhynchus keta  
Keyword(4) target strength pattern  
Keyword(5) prolate-spheroid modal series model  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kouichi Sawada  
1st Author's Affiliation Fisheries Research Agency (Fisheries Research Agency)
2nd Author's Name Tomohiko Matsuura  
2nd Author's Affiliation Fisheries Research Agency (Fisheries Research Agency)
3rd Author's Name Hideaki Aono  
3rd Author's Affiliation Fisheries Research Agency (Fisheries Research Agency)
4th Author's Name Akihiko Hashiba  
4th Author's Affiliation Sanriku-Yamada Fisheries Cooperative (Sanriku-Yamada Fisheries Cooperative)
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Speaker Author-1 
Date Time 2012-08-28 15:00:00 
Presentation Time 20 minutes 
Registration for US 
Paper # US2012-55 
Volume (vol) vol.112 
Number (no) no.186 
Page pp.105-110 
#Pages 6 
Date of Issue 2012-08-20 (US) 

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