nyenaceyg
Dołączył: 13 Gru 2010
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 Wysłany: Śro 22:44, 23 Lut 2011 Temat postu: Tuna longline fishing gear off the structure and d |
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Tuna longline fishing gear off the preliminary study and design of the structure
O the number of two hook float Q J3. Adjust the direction of release fishing, when fishing hooks distributed along shallow exile. When the distribution of fishing hooks placed upstream deeper o4. Regulating release hook speed: reducing ship speed can put a fishing line hooks sink full, increase the release fishing water POON. On the contrary, the opposite. 5. Release fishing can be tightened through the appropriate thread, so let's light a number of hooks as the hook opposite} jettison batch can be put out deeper. 4 tuna longline fishing gear structure and design discussion and summary of the preliminary study (a) of the tuna longline fishery and with, as today's tuna fishery above the upper ocean fisheries, particularly in the offshore fishing industry plays an important role, but so far tuna The longline fishing practices are still on a main. Foreign tuna fishery developed countries such as Japan and China Taiwan region, in this investigation has been undertaken in a large number of studies 5,6). China's development of tuna fisheries in recent years has made great progress though, but compared with developed countries and regions is still a wide gap,[link widoczny dla zalogowanych], it should be further absorb the advanced experience, improve and refine the design of appropriate units in the longline tuna fishing operations with,[link widoczny dla zalogowanych], to promote the sustainable development of the industry. (B) the principle of longline fishing gear design is nothing more than to hook a reasonable density distribution in the appropriate depth, the object according to its fishing environment and fishing operations on the time of fishing tackle and fishing methods should be placed accordingly. In large storms, the season and the trend of rapid sea, fishing line tilt ACP, hooks hard water layer down to the original, there was not need to try to adjust the fishing line deeper} same time for different species and in different moonlight conditions, the habitat depth usually significantly different,[link widoczny dla zalogowanych], it should also put fish on the way to tackle the structure and adjust accordingly in order to achieve the desired fishing efficiency. (C) the design and production of fishing tackle should take full account of its ease of operation,[link widoczny dla zalogowanych], the principle should be simple and practical. Longline in China on the basis of the original [7], combined with a Pacific operations in India in recent years and our practice. Branch and the main line that is connected through the clamp,[link widoczny dla zalogowanych], retractable extension stored separately when j is easy to grasp, but if the cost of artificial large j with a fixed connection between the two, do not use clips, retractable fishing line when the extension has been linked with the main line, save labor, but requires the operator to have more skilled production skills. Different types of vessels should be selected according to specific conditions and use.
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