水质因子对阳澄湖大闸蟹生态养殖的影响
Influence of water quality factors on the ecological cultivation of Chinese mitten crabs in Yangcheng Lake
吴珂 1吴冬梅 2潘云生 3钱钰林 1吴俊梅 1夏蕴玉1
作者信息
- 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
- 折叠
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.
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.
关键词
大闸蟹/水质因子/光合作用/生态养殖/阳澄湖Key words
Chinese mitten crabs/water quality factor/photosynthesis/ecological cultivation/Yangcheng Lake引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据