Paper Abstract and Keywords |
Presentation |
2018-08-30 15:45
Study on acoustic scattering characteristics of pointhead flounder (Cleisthenes pinetorum)
-- Characteristics of pointhead flounder observed with a quantitative echosounder. -- Tohru Mukai, Naizheng Yan, Jun Yamamoto, Kohei Hasegawa (Hokkaido Univ.) US2018-46 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This study addresses the characteristics of the pointhead flounder Cleisthenes pinetorum using a quantitative echosounder in and near Funka Bay, Hokkaido, Japan. Acoustics data of the fish were monitored using a Simrad EK60 (38, 120, 200 kHz) split-beam echo sounder, and biological samples were collected using a rod for the pointhead flounder and a frame-type midwater trawl for the juvenile walleye pollock (The most important prey of pointhead flounder). The pointhead flounder schools presented a patch shaped echo on the echograms and showed strong scattering at all three frequencies, whereas the distribution patterns of the juvenile walleye pollock schools were layered. The volume backscattering strength (SV) of the target schools extracted from the echograms showed that the pointhead flounder presented a higher SV at high frequency, which is consistent with the early surveys of other bladderless fish. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Pointhead flounder / Quantitative echosounder / Juvenile walleye pollock / Volume backscattering strength / acoustic characteristics / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 199, US2018-46, pp. 29-32, Aug. 2018. |
Paper # |
US2018-46 |
Date of Issue |
2018-08-23 (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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US2018-46 |
Conference Information |
Committee |
US |
Conference Date |
2018-08-30 - 2018-08-30 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tokyo Institute of Technology |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
US |
Conference Code |
2018-08-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Study on acoustic scattering characteristics of pointhead flounder (Cleisthenes pinetorum) |
Sub Title (in English) |
Characteristics of pointhead flounder observed with a quantitative echosounder. |
Keyword(1) |
Pointhead flounder |
Keyword(2) |
Quantitative echosounder |
Keyword(3) |
Juvenile walleye pollock |
Keyword(4) |
Volume backscattering strength |
Keyword(5) |
acoustic characteristics |
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1st Author's Name |
Tohru Mukai |
1st Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
2nd Author's Name |
Naizheng Yan |
2nd Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
3rd Author's Name |
Jun Yamamoto |
3rd Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
4th Author's Name |
Kohei Hasegawa |
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Hokkaido University (Hokkaido Univ.) |
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Speaker |
Author-1 |
Date Time |
2018-08-30 15:45:00 |
Presentation Time |
25 minutes |
Registration for |
US |
Paper # |
US2018-46 |
Volume (vol) |
vol.118 |
Number (no) |
no.199 |
Page |
pp.29-32 |
#Pages |
4 |
Date of Issue |
2018-08-23 (US) |
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