A simplified model of the interaction of the trawl warps, the otterboards and netting drag
9 pages, 7 figures, 7 tables
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| Format: | artículo biblioteca |
| Language: | English |
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Elsevier
2008-07-30
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| Subjects: | Modelling, Bottom trawl gear, Fishing, Otterboard, Experimental data, |
| Online Access: | http://hdl.handle.net/10261/15237 |
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dig-icm-es-10261-152372022-04-28T11:44:58Z A simplified model of the interaction of the trawl warps, the otterboards and netting drag Prat, Joana Antonijuan, Josefina Folch, Arnau Sala, Antonello Lucchetti, A. Sardà, Francisco Mànuel-Làzaro, Antoni Modelling Bottom trawl gear Fishing Otterboard Experimental data 9 pages, 7 figures, 7 tables Computational modelling is a valuable complementary tool to assess behavior of bottom trawl fishing gears. A simplified model of the interaction of the trawl warps, the otterboards and netting drag is proposed. The model does not calculate the net geometry and it is constrained to steady towing conditions, flat seabed and gear symmetry. Simulations provide a number of relevant outcomes such us distribution of tensions at the warp, balance of forces at the otterboards or horizontal spread under different haul conditions such as depth or towing speed. Based on the above, the objective of the present study was to describe and implement the model and thus to predict the consequences of changing some gear components, in particular to predict the impact of the doors on the seabed. This objective could have been fulfilled through extensive sea trials to cover all the different haul conditions of interest. Due to the high cost of such trials we chose to perform sea trials at two different bottom depths at which two towing speeds were tested. Then we applied the simulation software to make a preliminary comparison with experimental results and obtain predictions on what would be the effect of changing some gear components This research has been developed under the Spanish PETRI project "Optimización informática para el diseño, construcción y prueba de artes de pesca de arrastre" (PTR1995-0735-OP) and partially supported by funds from the Commission of the European Communities ("DEGREE: Development of fishing Gears with Reduced Effects on the Environment", contract no. SSP8-CT-2004-022576) Peer reviewed 2009-07-22T11:39:04Z 2009-07-22T11:39:04Z 2008-07-30 artículo http://purl.org/coar/resource_type/c_6501 Fisheries Research 94(1): 109-117 (2008) 0165-7836 http://hdl.handle.net/10261/15237 10.1016/j.fishres.2008.07.007 en https://doi.org/10.1016/j.fishres.2008.07.007 none 530832 bytes application/pdf Elsevier |
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biblioteca |
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Europa del Sur |
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Biblioteca del ICM España |
| language |
English |
| topic |
Modelling Bottom trawl gear Fishing Otterboard Experimental data Modelling Bottom trawl gear Fishing Otterboard Experimental data |
| spellingShingle |
Modelling Bottom trawl gear Fishing Otterboard Experimental data Modelling Bottom trawl gear Fishing Otterboard Experimental data Prat, Joana Antonijuan, Josefina Folch, Arnau Sala, Antonello Lucchetti, A. Sardà, Francisco Mànuel-Làzaro, Antoni A simplified model of the interaction of the trawl warps, the otterboards and netting drag |
| description |
9 pages, 7 figures, 7 tables |
| format |
artículo |
| topic_facet |
Modelling Bottom trawl gear Fishing Otterboard Experimental data |
| author |
Prat, Joana Antonijuan, Josefina Folch, Arnau Sala, Antonello Lucchetti, A. Sardà, Francisco Mànuel-Làzaro, Antoni |
| author_facet |
Prat, Joana Antonijuan, Josefina Folch, Arnau Sala, Antonello Lucchetti, A. Sardà, Francisco Mànuel-Làzaro, Antoni |
| author_sort |
Prat, Joana |
| title |
A simplified model of the interaction of the trawl warps, the otterboards and netting drag |
| title_short |
A simplified model of the interaction of the trawl warps, the otterboards and netting drag |
| title_full |
A simplified model of the interaction of the trawl warps, the otterboards and netting drag |
| title_fullStr |
A simplified model of the interaction of the trawl warps, the otterboards and netting drag |
| title_full_unstemmed |
A simplified model of the interaction of the trawl warps, the otterboards and netting drag |
| title_sort |
simplified model of the interaction of the trawl warps, the otterboards and netting drag |
| publisher |
Elsevier |
| publishDate |
2008-07-30 |
| url |
http://hdl.handle.net/10261/15237 |
| work_keys_str_mv |
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