Development of the resource survey method of sakura shrimp in Suruga Bay by broadband scientific echosounders.
| Project/Area Number |
17H05033
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Aquatic bioproduction science
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| Research Institution | Tokyo University of Marine Science and Technology |
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Principal Investigator |
Kazuo Amakasu 東京海洋大学, 学術研究院, 准教授 (80452043)
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | サクラエビ / 音響水産資源調査 / 計量魚群探知機 / 広帯域音波 / ターゲットストレングス / 資源量推定 / エコー判別 / 理論音響散乱モデル / 密度比 / 音速比 / 広帯域送受波器 / 密度比・音速比 / 水産資源調査 / 音響リモートセンシング / 水産音響学 / 海洋音響学 / 海洋探査 |
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| Outline of Final Research Achievements |
The research was conducted for the development of the resource survey method of sakura shrimp in Suruga Bay with scientific echosounders. Parameters for theoretical prediction of target strength, which is acoustic scattering strength, of a single sakura shrimp essential for the survey were determined and its acoustic frequency dependence and body length dependence were clarified. Quantitative observation of the sakura shrimp echo by a scientific echosounder was also successfully conducted and its characteristics were clarified.
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| Academic Significance and Societal Importance of the Research Achievements |
サクラエビ資源を持続利用するための資源管理およびそのための資源量推定が求められている。サクラエビに対して計量魚探による資源量調査手法が適用できる可能性は過去に示されたが、具体的な研究はこれまで行われておらず、本研究の成果により計量魚探による資源量推定に向けて大きく前進した。研究の中心となったサクラエビのTSについては、実測だけでなく理論も積極的に使用した新たなアプローチを用いており、関連研究への応用が期待できる。
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Report
(5 results)
Research Products
(11 results)
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[Presentation] Study on the targetstrength of sakura-ebi (Lucensosergia lucens) ―Part 2: Material properties for theoretical acoustic scattering models2019
Author(s)
B. Saygili, R. Fujimaki, S. Tsuyuki, H. Nonaka, N. Yamamoto, K. Kobayashi, T. Aikawa, H. Sakamoto, S. Oka, T. Hayashi, and K. Amakasu
Organizer
Asian Fisheries Acoustics Society
Related Report
Int'l Joint Research
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[Presentation] Echo survey off Yaizu, Suruga bay, Japan2018
Author(s)
K. Amakasu, W. Sato, N. Yamamoto, K. Kato, T. Aikawa, S. Oka, H. Sakamoto, Y. Hayashi, F. Hu, and K. Kobayashi
Organizer
Asian Fisheries Acoustics Society
Related Report
Int'l Joint Research
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