三都澳水产养殖区水质调查  

Investigation of Water Quality in Sandu’ao Aquaculture Area

作　　者：余训凯 YU Xunkai(Ningde Fufa Aquatic Products Co.,Ltd.,Ningde,Fujian 352103;State Key Laboratory of Large Yellow Croaker Breeding,Ningde,Fujian 352103;Ningde large yellow croaker science and Technology Institute,Ningde,Fujian 352103)

机构地区：[1]宁德市富发水产有限公司,福建宁德352103 [2]大黄鱼育种国家重点实验室,福建宁德352103 [3]宁德大黄鱼科技小院,福建宁德352103

出　　处：《水产养殖》2023年第2期29-32,共4页Journal of Aquaculture

基　　金：国家海水鱼产业技术体系(CARS-47)。

摘　　要：为了解三都澳水产养殖区水域环境的现状及变化趋势,2021年1—12月,对三都澳2个水产养殖点的水温、溶解氧(DO)、化学需氧量(COD)、亚硝酸盐氮(NO_(2)^(-)-N)、硝酸盐氮(NO_(3)^(-)-N)、氨氮(NH_(3)-N)和磷酸盐(PO_(4)^(-)-P)质量浓度进行了监测。结果表明,水温为13.4~28.0℃;水体中ρ(DO)均在5 mg/L以上,ρ(COD)年平均值为0.37 mg/L,均符合二类海水水质标准;ρ(NO_(2)^(-)-N)周年变化按从大到小排序为夏、秋、春和冬季;ρ(NO_(3)^(-)-N)周年变化按从大到小排序为冬、秋、春、夏季;ρ(NH_(3)-N)周年变化按从大到小排序为春、冬、秋和夏季;ρ(PO_(4)^(-)-P)周年变化按从大到小排序为秋、夏、冬和春季;水体的溶解无机氮(DIN)组成结构以NO_(3)^(-)-N为主;三都澳2个水产养殖点长期属于中度营养状态。In order to master the current situation and change trend of the water environment in Sandu’ao,according to the analysis of the water temperature,dissolved oxygen(DO),chemical oxygen demand(COD),nitrite(NO_(2)^(-)-N),nitrate(NO_(3)^(-)-N),ammonia nitrogen(NH_(3)-N),active phosphate(PO_(4)^(-)-P)in two aquaculture points in Sandu’ao from January 2021 to December 2021.The results showed that:the water temperature ranged from 13.4℃to 28℃;the content of dissolved oxygen(DO)was higher than 5 mg/L,and the annual average chemical oxygen demand(COD)was 0.37 mg/L,all the content of DO and COD of seawater met the ClassⅡSea Water Quality Standard;the annual variation of nitrite(NO_(2)^(-)-N)concentration:summer>autumn>spring>winter;the concentration of nitrate(NO_(3)^(-)-N):winter>autumn>spring>summer;the concentration of ammonia nitrogen(NH_(3)-N):spring>winter>autumn>summer;the concentration of active phosphate(PO_(4)^(-)-P):autumn>summer>winter>spring;the mainly inorganic composition of the dissolved nitrogen(DIN)is nitrate(NO_(3)^(-)-N);all two points in Sandu’ao in moderate nutritional status for a long time.

关 键 词：三都澳 水质 中度营养 

分 类 号：X714[环境科学与工程—环境工程]