940270 鱼类行动和拖网设计:选择性拖网具有开发潜力=Fish behaviour and trawl de-sign:Potenfial for selective trawl[刊,英]//AS-FAI..—1993,23(3),—237拖网设计的改进已使鱼、虾分离率达到80%,而虾渔获量并没有很大的损失。这些...940270 鱼类行动和拖网设计:选择性拖网具有开发潜力=Fish behaviour and trawl de-sign:Potenfial for selective trawl[刊,英]//AS-FAI..—1993,23(3),—237拖网设计的改进已使鱼、虾分离率达到80%,而虾渔获量并没有很大的损失。这些技术可以进一步加以改进,以便通过更多的研究和开发为其他应用设计更有选择性的渔具。成功开发选择性拖网渔具设计的关键在于增加单个鱼种对不同环境条件中的各种刺激物的行为的认识。展开更多
941618 桁拖网可以选择捕鱼=Beam traw-ls can be selective[刊,英]∥FNI..—1994,33(4).—44～45比利时渔业研究所(RVZ)荷兰渔业研究所(RIVODLO)和英国海洋渔业总会(Seafish)联合进行一个桁拖网选择性研究项目。目的在于减少圆体鱼,如...941618 桁拖网可以选择捕鱼=Beam traw-ls can be selective[刊,英]∥FNI..—1994,33(4).—44～45比利时渔业研究所(RVZ)荷兰渔业研究所(RIVODLO)和英国海洋渔业总会(Seafish)联合进行一个桁拖网选择性研究项目。目的在于减少圆体鱼,如牙鳕、黑线鳕和鳕的副渔获,而不损失扁体鱼副渔获。在试验中作了一些可能性改进,并进行渔获比较,展开更多
The objective of this work is to show the benefits of a new eco-systemic fishing gear installed in three bottom trawlers after one year using it. The study has been based on fuel consumption reduction for the three ve...The objective of this work is to show the benefits of a new eco-systemic fishing gear installed in three bottom trawlers after one year using it. The study has been based on fuel consumption reduction for the three vessels and the catch in two of them. The new system minimizes the impact of the fishing gear on the seabed, with a reduction on the tow resistance. This generates significant fuel savings that improves the economical result of the fishery, helping the ship owners in the return of investment first, then in the future viability of the operation. Apart of the evident savings due to the fuel consumption reduction, in the long term, the ship owner will notice also savings on maintenance, both because the winches are towing with less tension （longer life for warps, brakes and hydraulic system） and the engine is running at low rpm＇s （longer life of the engine and between breakdowns）. The new fishing gear does not require any modification on the way that the fisherman is working, only replacing and/or modifying some parts or components of the fishing gear. The implementation is easy and the adjustments required could be done in a couple of days.展开更多
文摘940270 鱼类行动和拖网设计:选择性拖网具有开发潜力=Fish behaviour and trawl de-sign:Potenfial for selective trawl[刊,英]//AS-FAI..—1993,23(3),—237拖网设计的改进已使鱼、虾分离率达到80%,而虾渔获量并没有很大的损失。这些技术可以进一步加以改进,以便通过更多的研究和开发为其他应用设计更有选择性的渔具。成功开发选择性拖网渔具设计的关键在于增加单个鱼种对不同环境条件中的各种刺激物的行为的认识。
文摘941618 桁拖网可以选择捕鱼=Beam traw-ls can be selective[刊,英]∥FNI..—1994,33(4).—44～45比利时渔业研究所(RVZ)荷兰渔业研究所(RIVODLO)和英国海洋渔业总会(Seafish)联合进行一个桁拖网选择性研究项目。目的在于减少圆体鱼,如牙鳕、黑线鳕和鳕的副渔获,而不损失扁体鱼副渔获。在试验中作了一些可能性改进,并进行渔获比较,
文摘The objective of this work is to show the benefits of a new eco-systemic fishing gear installed in three bottom trawlers after one year using it. The study has been based on fuel consumption reduction for the three vessels and the catch in two of them. The new system minimizes the impact of the fishing gear on the seabed, with a reduction on the tow resistance. This generates significant fuel savings that improves the economical result of the fishery, helping the ship owners in the return of investment first, then in the future viability of the operation. Apart of the evident savings due to the fuel consumption reduction, in the long term, the ship owner will notice also savings on maintenance, both because the winches are towing with less tension （longer life for warps, brakes and hydraulic system） and the engine is running at low rpm＇s （longer life of the engine and between breakdowns）. The new fishing gear does not require any modification on the way that the fisherman is working, only replacing and/or modifying some parts or components of the fishing gear. The implementation is easy and the adjustments required could be done in a couple of days.
