日本蟳入笼行为及其地笼网逃逸口选择性的实验研究

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日本蟳入笼行为及其地笼网逃逸口选择性的实验研究
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作者单位:中国海洋大学 水产学院, 山东 青岛266003
作者简介:张鹏(1989), 男, 硕士研究生, 从事渔具选择性研究. E-mail: 28194915@qq.com
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中图分类号:S93
基金项目:农业部公益性行业科研专项经费项目(201003068).

Ingress behavior and escape vent selectivity of Charybdis japonicain the cage net

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College of Fisheries, Ocean University of China, Qingdao 266003, China

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), 周后开展相关实验。观察光照、诱饵条件对日本蟳入笼行为的影响。结果表明在明亮条件下大多数分布于养殖水槽的四角遮黑处理和放置诱饵均能增加日本蟳的入笼比例长5.5 cm×3 cm50%、选择范围、、。根据实验结果, 。本研究旨在为有效保护日本蟳幼蟹资源提供技术依据

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of cage nets and protect juvenile crab was evaluated. At the same time, the impact of illumination and were photophobic: under bright conditions they preferred to in the four corners of the water tank. Under dark conditions, they were randomly distributed. Both bait and the black entice into the cage. The rectangular escape vents at the bottom of the cage net were 4 cm×3 cm, 4.5 cm×3 cm, 5 cm×3 cm and 5.5 cm×3 cm length by height, which corresponded to (the corresponding carapace length with 50% retention) of being 3.75 cm, 4.24 cm, 4.54 cm and 5.08 cm, respectively, and SR (the selection range) being 0.65 cm, 0.45 cm, 0.62 cm and 0.82 cm, respectively. has a linear relationship with the length of the escape vent, being about 92.3% of its length. Based on the minimum carapace length of sexually mature the minimum market-acceptable size standard and the experimental results, we conclude that the most size (

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张鹏,张秀梅.日本蟳入笼行为及其地笼网逃逸口选择性的实验研究[J].中国水产科学,2013,20(2):338-345
ZHANG Peng, ZHANG Xiumei. Ingress behavior and escape vent selectivity of Charybdis japonicain the cage net[J]. Journal of Fishery Sciences of China,2013,20(2):338-345

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在线发布日期: 2013-04-07
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