Annual Variation of Water Quality in Aquaculture Ponds for Apostichopus japonicus

• 作者: Dawei JIANG Duohui LI Jiangyi WU Luping WANG Yaoming LUO Yuan CHENG Zhiying GAO
• 来源期刊: 亚洲农业研究:英文版
• 学科: 地球科学
• 关键词: AQUACULTURE PONDS for Apostichopus JAPONICUS Water quality PHYSICOCHEMICAL indicator
• 年，卷（期）: yznyyjywb_2019,（11）
• 页码范围: 25-27
• 页数: 3页
• 分类号: P73

摘要

By measuring water temperature,salinity,pH,dissolved oxygen,nitrite and ammonia nitrogen,the annual variation regularity of water quality in the aquaculture ponds for sea cucumbers Apostichopus japonicus in Dalian were studied.Results showed that the physicochemical indicators kept changing in the year,and the various ranges of water temperature,salinity,pH,dissolved oxygen,nitrite,and ammonia nitrogen were 6.38-27.27℃,29.20‰-33.78‰,7.86-8.38,5.19-13.36 mg/L,0.0037-0.0090 mg/L and 0.0171-0.0908 mg/L,respectively.Analysis indicated that there was an extremely significant negative correlation between water temperature and dissolved oxygen(P<0.01),an extremely significant positive correlation between water temperature and ammonia nitrogen(P<0.01),a significant negative correlation between salinity and nitrite(P<0.05),a significant negative correlation between dissolved oxygen and nitrite(P<0.05),and an extremely significant negative correlation between dissolved oxygen and ammonia nitrogen(P<0.01)in the aquaculture ponds for sea cucumber in Dalian.Research showed that the water quality of aquaculture ponds kept fluctuating all the time during the tested period,there were complicated and close relationships among physicochemical indicators,and a slight variation of external factors would bring consecutive reactions to different indicators in the water quality of aquaculture ponds.A reference for the production and management of sea cucumbers could be provided from the results.