| 不同水系河蟹在长江中游湖泊养成后的日产量动态 |
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| 引用本文： | 金刚,李钟杰.不同水系河蟹在长江中游湖泊养成后的日产量动态[J].水生生物学报,2000,24(1):48-55. |
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| 作者姓名： | 金刚 李钟杰 |
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| 作者单位： | 中国科学院水生生物研究所,武汉 430072 |
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| 基金项目： | 九五攻关专题(96-008-02-02)和中国科学院资源与生态环境研究课题(K2951-A1-102-01)资助.在野外工作中,中国科学院水生生物研究所刘伙泉研究员、雷武副研究员、方榕乐高级工程师、张堂林实验师给予大力帮助,作者在此一并表示衷心感谢. |
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| 摘 要： | 作者研究了不同水系河蟹在长江中游湖泊养成后于秋冬捕捞期间成蟹日产量动态特点。结果表明，盘锦苗种、天津苗种、长江苗种日产量高峰时间分别为９月上旬、９月中旬、１０月上旬、瓯江苗种的高峰时间最早在１０月１９日，最晚出现在１１月１７日。苗种来源水系纬度（Ｙ）与成蟹日产量高峰出现时间（Ｘ：天８月２８日为第一天）呈线性相关：Ｙ＝４３．１８２－０．２３２Ｘ（ｎ＝１３，ｒ＝－０．９６）。
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| 关 键 词： | 河蟹 日产量动态 捕捞期 长江中游湖泊 |
| 文章编号： | 1000-3207(2000)01-08 |
| 修稿时间： | 1998年7月27日 |
CHARACTERISTICS OF DAILY CATCH OF CHINESE MITTEN CRAB, ERIOCHEIR SINENSIS, FROM DIFFERENT WATER SYSTEMS, REARED IN LAKES AT THE MIDDLE REACHES OF CHANGJIANG RIVER |
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| JIN Gang and LI Zhong-jie.CHARACTERISTICS OF DAILY CATCH OF CHINESE MITTEN CRAB, ERIOCHEIR SINENSIS, FROM DIFFERENT WATER SYSTEMS, REARED IN LAKES AT THE MIDDLE REACHES OF CHANGJIANG RIVER[J].Acta Hydrobiologica Sinica,2000,24(1):48-55. |
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| Authors: | JIN Gang and LI Zhong-jie |
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| Abstract: | The characteristics of daily catch of Chinese dritten crab, Eriocheir sinensis,from different water systems, stocked in Iakes at the middle reaches of Changjiang River, were studied in harvesting period during autumn and winter. The originated crabs from Panjing, Tianjin, Changjiang River, Oujiang River reached the peak of daily catch in the first ten- day of September, the second tenday of September, the first tenday of Octobef, and the period of October 19-November 17, respectively.The relationship between the latitude (Y) of water systems from which crah seedlings come and the time (X: day, the first day is August 28) of peak catch during harvesting period may be expressed as Y = 43.182 - 0.232X (n = 13, r = - 0.96). |
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| Keywords: | Eriocheir sinensis Daily catch Dynamics Harvesting period |
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