| 印度洋西北部海域鸢乌贼的触腕和腕足钓捕断裂强度 |
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| 引用本文： | 吴国峰,周应祺,陈新军.印度洋西北部海域鸢乌贼的触腕和腕足钓捕断裂强度[J].湛江海洋大学学报,2006,26(1):31-35. |
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| 作者姓名： | 吴国峰 周应祺 陈新军 |
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| 作者单位： | 上海水产大学海洋学院,上海200090 |
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| 基金项目： | 农业部公海渔业资源探捕调查项目（技04-44）,上海市重点学科建设项目（T1101） |
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| 摘 要： | 鱿鱼的腕足断裂强度是影响鱿钓脱钩率的重要因素。通过现场实测，分析了印度洋西北部海域鸢乌贼（Symplectoteuthis oualaniensis）的腕足断裂强度对手钓作业脱钩率产生的影响。结果表明，鸢乌贼的每根触腕仅能承受的拉力相当于体重的0．7倍，因此，钓捕过程中，因触腕断裂造成的脱钩率接近100％；而另外的第Ⅰ一Ⅳ腕足的断裂强度分别是其体重的2．30、2．05、2．06和1．87倍；5对腕足整体的平均脱钩率接近10％。
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| 关 键 词： | 鸢乌贼 触腕 腕足 断裂强度 印度洋西北海域 |
| 收稿时间： | 2005-07-12 |
Jigging Broken Strength of Arms and Tentacula of Symplectoteuthis oualaniensis in Northwestern Indian Ocean |
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| WU Guo-feng, ZHOU Ying-qi, CHEN Xin-jun.Jigging Broken Strength of Arms and Tentacula of Symplectoteuthis oualaniensis in Northwestern Indian Ocean[J].Journal of Zhanjiang Ocean University,2006,26(1):31-35. |
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| Authors: | WU Guo-feng ZHOU Ying-qi CHEN Xin-jun |
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| Institution: | Ocean College of Shanghai Fisheries University, Shanghai 20090, China |
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| Abstract: | Broken strength of arms and tentacula of squid is a significant factor affecting the jigging-off rate. By on-site measurement, the broken strength of arms and tentacles of Symplectoteuthis oualaniensis in Northwestern Indian Ocean was analyzed and their jigging-off rate in hand-jigging was obtained. The results show that the bearable strength of tentacle is as 0.7 times only as that of its body weight and the jigging-off rate caused by tentacle broken is nearly 100%. The broken strengths of the other four arms are respectively as 2.30, 2.05, 2.06 and 1.87 times as that of its body weight. The average jigging-off rate for all arms and tentacula is about 10%. |
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| Keywords: | Symplectoteuthis oualaniensis tentacula arms broken strength Northwestem Indian Ocean |
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