工厂化养鱼实用技术模式研究中水质监测分析报告

本试验是工厂化养鱼实用技术模式研究项目中的一个方面。试验于2002年5月24日至7月25日进行，养殖品种为奥尼罗非鱼和短盖巨脂鲤（亦名淡水白鲳）。初始放鱼量40．0kg／m^3，实验结束时单位水体鱼获量奥尼罗非鱼为78．2kg／m^3，淡水白鲳为82．2kg／m^3。试验期间每两天化验一次，共化验32次，监测8项水质理化指标的变化范围分别为：水温22-30℃、pH值7．36～8．28、溶解氧1．17～8．51mg／L、氨氮0．79～11．27mg／L、亚硝酸氮0．551～8．520mg／L、硝酸氮3．33-42．79mg／L、磷酸盐磷0．547-9．230mg／L、碱度257．2-358．2mg／L。

Water Quality Detection Analysis Reports During Study on Applied Technical Model of Factory Fish Culturing

The experiment is one item of the applied technical model in factory fish culturing, which lasted two months. Oreochromis aureus× Oreochromis niloticus and Colossoma brachypomum were selected as the experiment species. Initial unitage of fish was 40.0 kg/m^3, and at the end of the experiment, the unitages of Oreochromis aureus × Oreochromis niloticus and Colossoma brachypomum were 78.2 kg/m^3 and 82.2 kg/m^3 respectively. Every two days, one assay was done during the experiment, and 32 times were done. Eight physical ＆ chemical indexes of water quality were measured. The results were as follows. The water temperature ranged between 22 and 30 ℃, pH value ranged between 7.36 and 8.28, dissolved oxygen changed between 1.17 and 8.51 rag/L, ammonium nitrogen ranged between 0.79 and 11.27 mg/L, nitrite nitrogen was between 0.551 and 8.520 mg/L, nitrate nitrogen was between 3.33 and 42.79 mg/L, phosphate changed between 0.547 and 9.230 mg/L, and alkalinity was 257.2-358.2 mg/L.