深圳大鹏湾南澳养殖区主要环境因子分布规律的研究

Distribution of the Main Environmental Factors of Nanao Culture Areas

根据 2003 年 3~11 月在深圳大鹏湾南澳养殖区的监测结果,分析了该养殖区主要环境因子的时空分布规律.结果表明:大鹏湾养殖区各监测站位的海水营养状态综合指数均小于 1,属于贫营养型海区.经过统计学分析,网箱养殖区中的氨氮、无机磷、COD含量和弧菌总数要明显高于贝类养殖区,两者差异显著.网箱养殖区中的氨氮和无机磷含量、弧菌总数要明显高于其外部水域,亦具有显著性差异.整个调查海区N/P值较高,6~8月该比值明显升高.

Based on the investigation data of environmental factors of the culture areas in Dapeng Bay from March to November(2003),the temporal and spacial distribution was analysed.The results showed that the comprehensive index of the seawater nutrient condition was less than 1 and seawater quality was in poor condition.The average contents of NH^+_4-N,PO^(3-)_4-P,COD and vibrio biomass in fish culture area were obviously higher than those in shellfish culture area according to statistical analysis, also obviously higher than those outside the bay.The difference between two culture areas was remarkable.The ratio of N/P was high in whole area,especially in months.from June to August.