| 日本鳗鲡(Anguilla japonica)对日本沼虾(Macrobrachium nipponense)的捕食效应 |
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| 引用本文： | 王志铮,杨 磊,朱卫东,王海强,施建军.日本鳗鲡(Anguilla japonica)对日本沼虾(Macrobrachium nipponense)的捕食效应[J].海洋与湖沼,2011,42(1):107-113. |
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| 作者姓名： | 王志铮 杨 磊 朱卫东 王海强 施建军 |
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| 作者单位： | 1. 浙江海洋学院,舟山,316004
2. 余姚市水产技术推广中心,余姚,315400 |
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| 基金项目： | 浙江省重大科技专项农业项目, 2008C12083 号 |
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| 摘 要： | 采用捕食者.猎物间捕食效应研究方法,研究了日本鳗鲡对3种体长规格日本沼虾的捕食效应.结果表明:(1)日本鳗鲡与日本沼虾的主要活动时段均为17:00至翌日5:00,期间日本沼虾的活动量随其体长规格的增大而减少,日本鳗鲡的主要捕食时段为0:00-5:00,其对体长2.4cm左右的日本沼虾有较强的追捕行为;(2)日本鳗鲡对日...
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| 关 键 词： | 日本鳗鲡 日本沼虾 体长 捕食作用 |
| 收稿时间： | 2010/5/23 0:00:00 |
| 修稿时间： | 2010/7/29 0:00:00 |
STUDY OF PREDATION HABIT OF ANGUILLA JAPONICA ON MACROBRACHIUM NIPPONENSE |
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| WANG Zhi-Zheng,YANG Lei,ZHU Wei-Dong,WANG Hai-Qiang and SHI Jian-Jun.STUDY OF PREDATION HABIT OF ANGUILLA JAPONICA ON MACROBRACHIUM NIPPONENSE[J].Oceanologia Et Limnologia Sinica,2011,42(1):107-113. |
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| Authors: | WANG Zhi-Zheng YANG Lei ZHU Wei-Dong WANG Hai-Qiang and SHI Jian-Jun |
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| Institution: | Zhejiang Ocean University;Zhejiang Ocean University;Fishery Technology Extension Center of Yuyao;Zhejiang Ocean University;Fishery Technology Extension Center of Yuyao |
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| Abstract: | The predation of Anguilla japonica on 3 different body lengths of Macrobrachium nipponense was studied based on the predator-prey relationship theory. The results showed that: (1) The active time for A. japonica and M. nipponense was between 17:00 and 05:00. The activity level of M. nipponense decreased with increasing body length. The hunting time for A. japonica was between 00:00 hrs and 05:00 hrs, and the M. nipponense with body length of 2.4cm was the main target prey. (2) Size-selective predation for A... |
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| Keywords: | Anguilla japonica Macrobrachium nipponense Body length Predation |
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