湖北农业科学 ›› 2024, Vol. 63 ›› Issue (4): 123-126.doi: 10.14088/j.cnki.issn0439-8114.2024.04.023

• 水产养殖 • 上一篇    下一篇

水质因子对阳澄湖大闸蟹生态养殖的影响

吴珂1, 吴冬梅2, 潘云生3, 钱钰林1, 吴俊梅1, 夏蕴玉1   

  1. 1.昆山市气象局,江苏 昆山 215337;
    2.苏州相城区气象局,江苏 苏州 215100;
    3.昆山市水产站,江苏 昆山 215337
  • 收稿日期:2022-07-22 出版日期:2024-04-25 发布日期:2024-05-07
  • 作者简介:吴珂(1983-),女,江苏常熟人,高级工程师,硕士,主要从事短期天气预报及农业气象研究,(电话)18962683662(电子信箱)ketchup11@163.com。
  • 基金资助:
    昆山市社会发展科技计划项目(KS1459)

Influence of water quality factors on the ecological cultivation of Chinese mitten crabs in Yangcheng Lake

WU Ke1, WU Dong-mei2, PAN Yun-sheng3, QIAN Yu-lin1, WU Jun-mei1, XIA Yun-yu1   

  1. 1. Kunshan Meteorological Bureau, Kunshan 215337, Jiangsu, China;
    2. Xiangcheng District Meteorological Bureau, Suzhou 215100, Jiangsu, China;
    3. Kunshan Aquatic Products Technology Promotion Station,Kunshan 215300, Jiangsu, China
  • Received:2022-07-22 Online:2024-04-25 Published:2024-05-07

摘要: 在昆山市巴城镇武神潭村设立观测试验点,对水温、溶解氧、pH、氨氮及大闸蟹生长动态情况进行监测,讨论适宜大闸蟹生长的水质环境。结果表明,水温对于大闸蟹的影响最大,温度突然变化或者超过30 ℃易造成大闸蟹的死亡;溶解氧白天呈单峰型,藻类对于溶解氧贡献最大;7月中旬后pH逐步下降且趋于平稳,氨氮总体较低,利于大闸蟹生长。水温28 ℃左右、溶解氧维持4 mg/L以上、pH 7.5~8.5是阳澄湖大闸蟹适宜生长的水质环境。

关键词: 大闸蟹, 水质因子, 光合作用, 生态养殖, 阳澄湖

Abstract: An observation experiment site was established in Wushentan Village, Bacheng Town, Kunshan City to observe the water temperature, dissolved oxygen, pH, ammonia nitrogen and the growth dynamics of Chinese mitten crabs,to discuss the suitable water quality environment for the growth of crabs. The results showed that the water temperature had the greatest influence on crabs, with sudden changes in temperature or exceeding 30 ℃ leading to their death; dissolved oxygen showed a unimodal distribution during the day, indicating that algae contributed most to it. After mid-July, pH gradually decreased and leveled off, the lower overall value of ammonia nitrogen was beneficial for the growth of crabs. Water temperature around 28 ℃, dissolved oxygen maintained above 4 mg/L, and pH 7.5~8.5 were the suitable growth environment.

Key words: Chinese mitten crabs, water quality factor, photosynthesis, ecological cultivation, Yangcheng Lake

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