Performance and Feasibility Study of a Novel Automated Catch-Hauling Device Using a Flexible Hose Net Structure in Set-Net
The labor-intensive catch-hauling method in set-net fisheries faces problems of lower productivity, lower efficiency, and higher operational risk due to aging problem and labor insufficiency. To solve such problems, a novel catch-hauling device using the flexible fire hose and net (hose net), which...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/9/9/1015 |
| _version_ | 1797518589497966592 |
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| author | Qiao Li Yue Li Shuchuang Dong Yoichi Mizukami Jialin Han Takero Yoshida Daisuke Kitazawa |
| author_facet | Qiao Li Yue Li Shuchuang Dong Yoichi Mizukami Jialin Han Takero Yoshida Daisuke Kitazawa |
| author_sort | Qiao Li |
| collection | DOAJ |
| description | The labor-intensive catch-hauling method in set-net fisheries faces problems of lower productivity, lower efficiency, and higher operational risk due to aging problem and labor insufficiency. To solve such problems, a novel catch-hauling device using the flexible fire hose and net (hose net), which is placed in the box chamber, was proposed in this study. The hoses were inflated with air injected into one edge of the hose net, and the buoyancy force increased: the net gradually floated up, cornering the fish in the opposite edge. To corner and harvest the fish efficiently and safely, the changing formation and motion parameters of the hose net are significant. A series of floating up, sinking experiments, and catch-hauling tests were conducted to evaluate the performance of this device. The results showed that the hose net could gradually float in an ideal form and sink smoothly through natural exhaust and stretched on the bottom of the water tank. The time spent and average speeds in floating and sinking processes varied with air pressure and airflow rate, allowing the hose net motion to be controlled in practice by adjusting the airflow. Through the catch-hauling test using live fish, most of the fish were directed into the fish bag. Two main capture failure phenomena were also observed. Overall, this newly developed automated catch-hauling device is expected to be successful for use in modern fisheries. |
| first_indexed | 2024-03-10T07:31:52Z |
| format | Article |
| id | doaj.art-65ce3835961a4f408a64799a992a4200 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T07:31:52Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-65ce3835961a4f408a64799a992a42002023-11-22T13:46:49ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-09-0199101510.3390/jmse9091015Performance and Feasibility Study of a Novel Automated Catch-Hauling Device Using a Flexible Hose Net Structure in Set-NetQiao Li0Yue Li1Shuchuang Dong2Yoichi Mizukami3Jialin Han4Takero Yoshida5Daisuke Kitazawa6Institute of Industrial Science, The University of Tokyo, 5-1-5 Kashiwanoha, Chiba 277-8574, JapanInstitute of Industrial Science, The University of Tokyo, 5-1-5 Kashiwanoha, Chiba 277-8574, JapanInstitute of Industrial Science, The University of Tokyo, 5-1-5 Kashiwanoha, Chiba 277-8574, JapanInstitute of Industrial Science, The University of Tokyo, 5-1-5 Kashiwanoha, Chiba 277-8574, JapanAerospace and Marine-System Engineering, Osaka Prefecture University, 1-1 Sakai, Osaka 599-8531, JapanDepartment of Ocean Sciences, Tokyo University of Marine Science and Technology, 4-5-7 Minato, Tokyo 108-8477, JapanInstitute of Industrial Science, The University of Tokyo, 5-1-5 Kashiwanoha, Chiba 277-8574, JapanThe labor-intensive catch-hauling method in set-net fisheries faces problems of lower productivity, lower efficiency, and higher operational risk due to aging problem and labor insufficiency. To solve such problems, a novel catch-hauling device using the flexible fire hose and net (hose net), which is placed in the box chamber, was proposed in this study. The hoses were inflated with air injected into one edge of the hose net, and the buoyancy force increased: the net gradually floated up, cornering the fish in the opposite edge. To corner and harvest the fish efficiently and safely, the changing formation and motion parameters of the hose net are significant. A series of floating up, sinking experiments, and catch-hauling tests were conducted to evaluate the performance of this device. The results showed that the hose net could gradually float in an ideal form and sink smoothly through natural exhaust and stretched on the bottom of the water tank. The time spent and average speeds in floating and sinking processes varied with air pressure and airflow rate, allowing the hose net motion to be controlled in practice by adjusting the airflow. Through the catch-hauling test using live fish, most of the fish were directed into the fish bag. Two main capture failure phenomena were also observed. Overall, this newly developed automated catch-hauling device is expected to be successful for use in modern fisheries.https://www.mdpi.com/2077-1312/9/9/1015set-netflexible hose netwater tank experimentcatch-hauling testingautomated catch-hauling device |
| spellingShingle | Qiao Li Yue Li Shuchuang Dong Yoichi Mizukami Jialin Han Takero Yoshida Daisuke Kitazawa Performance and Feasibility Study of a Novel Automated Catch-Hauling Device Using a Flexible Hose Net Structure in Set-Net Journal of Marine Science and Engineering set-net flexible hose net water tank experiment catch-hauling testing automated catch-hauling device |
| title | Performance and Feasibility Study of a Novel Automated Catch-Hauling Device Using a Flexible Hose Net Structure in Set-Net |
| title_full | Performance and Feasibility Study of a Novel Automated Catch-Hauling Device Using a Flexible Hose Net Structure in Set-Net |
| title_fullStr | Performance and Feasibility Study of a Novel Automated Catch-Hauling Device Using a Flexible Hose Net Structure in Set-Net |
| title_full_unstemmed | Performance and Feasibility Study of a Novel Automated Catch-Hauling Device Using a Flexible Hose Net Structure in Set-Net |
| title_short | Performance and Feasibility Study of a Novel Automated Catch-Hauling Device Using a Flexible Hose Net Structure in Set-Net |
| title_sort | performance and feasibility study of a novel automated catch hauling device using a flexible hose net structure in set net |
| topic | set-net flexible hose net water tank experiment catch-hauling testing automated catch-hauling device |
| url | https://www.mdpi.com/2077-1312/9/9/1015 |
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