文献类型：期刊文献

中文题名：流沙湾和湛江湾海洋牧场多种模式养殖区水质综合评价

英文题名：Comprehensive Water Quality Assessment of Marine Ranching Areas with Multiple Aquaculture Modes in Liusha Bay and Zhanjiang Bay

作者：刘琦[1,2];李泳霖[1];程树兴[2,3];招春旭[2];陈光仕[2];郭有俊[2];冼华琳[2];颜云榕[3,4]

机构：[1]岭南师范学院地理科学学院,广东湛江524048;[2]南方海洋科学与工程广东省实验室(湛江)生蚝研究院,广东湛江524057;[3]广东海洋大学水产学院,广东湛江524088;[4]广东海洋大学广东省南海深远海渔业管理与捕捞工程技术研究中心,广东湛江524088

年份：2025

卷号：45

期号：5

起止页码：1

中文期刊名：广东海洋大学学报

外文期刊名：Journal of Guangdong Ocean University

收录：北大核心2023、、北大核心

基金：广东省教育厅青年创新人才项目(2023KQNCX040);广东省科技计划项目(2024B1212040002);广东省自然科学基金(2024A1515010079)。

语种：中文

中文关键词：海洋牧场;养殖模式;水质综合评价;雷州半岛

外文关键词：marine ranching areas;aquaculture models;comprehensive water quality assessment;Leizhou Peninsula

中文摘要：【目的】厘清海洋牧场间及养殖模式间的水质变化规律,揭示养殖模式对海洋牧场海域水质影响。【方法】对流沙湾和湛江湾海洋牧场贝类吊养区、深水网箱区、鱼排养殖区、牡蛎养殖区进行4个季度的现场调查,利用水质综合评估法,结合Kruskal-Wallis非参数分析比较海洋牧场不同养殖模式间水质参数和水质综合指数(WQI)评估结果差异,采用多元回归分析影响WQI评估结果的主导指标。【结果】4次调查结果显示,除雨季前期,流沙湾海洋牧场pH和溶解氧(DO)浓度呈高于湛江湾的趋势,总无机氮(TIN)浓度、活性磷酸盐(PO43-)浓度和高锰酸盐指数(CODMn)结果均呈相反趋势,但差异均不显著(P>0.05)。WQI评价结果显示流沙湾海洋牧场水质显著优于湛江湾(P<0.05)。贝类吊养区水质评价结果最优,均为优秀和良好等级;深水网箱和鱼排养殖区水质评价结果次之,良好等级为主导;牡蛎养殖区水质评价结果较差。DO和营养盐浓度差异是造成水质评价结果差异的核心因素(P<0.05)。【结论】不同海洋牧场间水质存在一定差异,主要受海域自然特征和周边陆域人类活动强度的综合影响。贝类吊养、深水网箱和鱼排养殖等模式养殖区尽管对海域水体造成一定影响,但尚在海水自净能力范围内。牡蛎养殖区水体受上游河流污染注入而水质较差,对区域养殖安全构成潜在威胁。

外文摘要：【Objective】This study aims to clarify the variations in water quality between the marine ranching areas and among different aquaculture models,revealing how aquaculture models influence the water quality of marine ranching areas.【Methods】Based on seasonal field investigations in the mussel raft culture area,offshore cage culture area,fish cage culture area,and oyster culture area of two marine ranching areas of Liusha Bay and Zhanjiang Bay,the comprehensive water quality assessment and Kruskal-Wallis nonparametric analysis were employed to compare variations in water quality parameters and water quality index(WQI)scores across the multiple aquaculture models.Multiple regression analysis was used to identify the primary indicators driving variations in WQI results.【Result】The results of four consistent surveys showed that,except for the early rainy season,the pH and dissolved oxygen(DO)concentration in Liusha Bay marine ranches exhibited a tendency to be higher than those in Zhanjiang Bay marine ranches,while the total inorganic nitrogen(TIN)concentration,reactive phosphate(PO43-)concentration,and permanganate index(CODMn)exhibited the opposite trend,but none of these differences were significant(P>0.05).The WQI evaluation result indicated that,the water quality of marine ranching areas in Liusha Bay was superior to that in Zhanjiang Bay,and mussel raft culture areas exhibited the highest water quality among the aquaculture models,predominantly graded as“Excellent”or“Good”;offshore cage culture and fish cage culture areas ranked second-best,with“Good”being the dominant grade;oyster culture areas demonstrated significantly poorer water quality(P<0.05).Variations in DO and nutrient concentrations were identified as the core factors significantly influencing WQI variations(P<0.05).【Conclusion】Significant water quality variations exist in different marine ranching areas,potentially influenced by the combined effects of the natural characteristics of the sea areas and the intensity of human activities in the surrounding land areas.While aquaculture(mussel raft,offshore cage,and fish cage cultures)exert measurable impacts on local water,the resultant water quality generally remains within the self-purification capacity of seawater.However,the water of body within the oyster culture area suffers from non-point source pollution originating from upstream rivers;the resulting poor inflow water quality poses a potential risk to aquaculture safety in this zone.