Factors influencing the rope tension of saury stick-held lift nets
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1. College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;
2. National Engineering Research Center for Pelagic Fishery, Shanghai Ocean University, Shanghai 201306, China;
3. Key Laboratory of Sustainable Exploitation of Oceani

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S973

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    Abstract:

    We evaluated the influence of haul speed and leadline weight on net tension in stick-held lift nets. Tests were carried out in a water tank using a scale model net in November-December, 2014. The tension on the siderope and leadline of the model net increased with haul time. The tension approached a maximum near the end of the haul. The tension on the model net siderope and leadline increased as the hauling speed increased and the rate of increase in net speed accelerated as the hauling speed increased. The hauling speed at 0.36-0.60 m/s had a significant effect on rope tension ( < 0.05), while at hauling speed of 0.12-0.36 m/s, the change in rope tension was stable. The tension in the model net sideline and the leadline increased when the leadline weight increased, though there was no effect on rope tension. Our observations provide insight into ways to improve rope tension performance and a reference for fishing operations.

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石永闯,朱清澄,张衍栋,花传祥,周文博. 基于模型试验的秋刀鱼舷提网纲索张力性能研究[J]. Jounal of Fishery Sciences of China, 2016,[volume_no](3):704-712

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  • Received:
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  • Online: May 18,2016
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