| 东、黄海鳀鱼的胃排空率及其温度影响 |
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| 引用本文： | 孙耀,刘勇,于淼,唐启升.东、黄海鳀鱼的胃排空率及其温度影响[J].生态学报,2005,25(2):215-219. |
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| 作者姓名： | 孙耀 刘勇 于淼 唐启升 |
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| 作者单位： | 1. 中国水产科学研究院黄海水产研究所,青岛 266071
2. 中国水产科学研究院黄海水产研究所,青岛 266071;中国海洋大学,青岛 266006 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金 |
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| 摘 要： | 在室内受控条件下,以卤虫幼体为饵料,测定了不同温度下鳀鱼的胃排空率,并比较了线性、指数和平方根3种常用数学模型对其排空曲线的拟合程度.统计结果表明,3种数学模型均可较好地描述鳀鱼的胃排空曲线 (df =10, r2=0.7820～0.9629, P<0.01),综合评价结果则进一步表明,指数模型最适于定量描述其胃排空曲线,平方根模型次之,直线模型较差.在研究温度范围内,鳀鱼的胃排空率随着温度的升高而加速增大,二者之间的定量关系可以用指数函数Rt=0.0354e0.0766T (R2=0.9770)加以定量描述.
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| 关 键 词： | 胃排空率 温度 鳀鱼 |
| 文章编号： | 1000-0933(2005)02-0215-05 |
| 收稿时间： | 2003/9/25 0:00:00 |
| 修稿时间： | 2004/4/15 0:00:00 |
Effect of temperature on the gastric evacuation rate of anchovy, Engrauli japanicus,in Yellow Sea and East Sea of China |
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| SUN Yao,LIU Yong,YU Miao and TANG Qisheng.Effect of temperature on the gastric evacuation rate of anchovy, Engrauli japanicus,in Yellow Sea and East Sea of China[J].Acta Ecologica Sinica,2005,25(2):215-219. |
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| Authors: | SUN Yao LIU Yong YU Miao and TANG Qisheng |
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| Institution: | Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture; Yellow Sea Fisheries Research Institute; CAFS; Qingdao; China |
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| Abstract: | The gastric evacuation rate (GER) of fish means the speed of food evacuated from stomach after feeding. It's usually used, in combination with the contents in stomach of fish sampled continuously in situ, to estimate some important ecological parameters, such as daily ration, feeding periodicity and ecological conversion efficiency. Because the parameters obtained by above method are closer to natural state, many studies published since 1960's have focused on GRE. As the principal consumer of zooplanktons a... |
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| Keywords: | gastric evacuation rate temperature anchovy |
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