罗非鱼养殖山塘水质与沉积物理化指标研究  

Changes of water quality and sediment physicochemical indices of Oreochromis mossambicus cultured in mountain pond under the ecological and efficient aquaculture pattern

作　　者：陈宇舒 CHEN Yushu(Freshwater Fisheries Research Institute of Fujian Province,Fuzhou 350002,China)

机构地区：[1]福建省淡水水产研究所,福建福州350002

出　　处：《渔业研究》2024年第3期296-301,共6页Journal of Fisheries Research

基　　金：福建省海洋服务与渔业高质量发展专项资金项目(FJHY-YYKJ-2022-2-3)。

摘　　要：为进一步完善山塘生态高效养殖模式,提高养殖水产品的产量与质量,延长山塘的高效率使用年限,同时防止养殖活动对环境的污染,研究定期采集山塘水样品及沉积物样品并检测其理化指标,分析理化指标周期变化规律,计算沉积物产污系数。研究结果表明:山塘水体在4—7月随着养殖活动的进行而逐渐走向富营养化;8—9月为苗种最适生长期,饲料投喂量达到顶峰,水质急剧恶化;10月之后随着环境气候的变化,水质有所改善。沉积物各个指标产出量变化趋势较为相近,均随着养殖活动的进行而升高,7—9月为沉积物产出最高的月份,计算沉积物产污系数为25395.22g/m2。To further enhance the ecological and efficient aquaculture practices in mountain ponds,increase the output and quality of aquaculture products,extend the high-efficiency service life of mountain ponds,and mitig-ate the pollution of the external environment resulting from aquaculture activities,this study collected water and sediment samples from mountain ponds at regular intervals.Physicochemical indices of these samples were ana-lyzed to ascertain their periodic changes,and the sediment pollutant production coefficient was calculated.Res-ults revealed a gradual progression towards eutrophication in water quality from April to July,coinciding with the advancement of aquaculture activities.From August to September was emerged as the optimal growth peri-od for seedlings,was marked by a peak in feed consumption and a subsequent sharp decline in water quality.However,after October,concurrent with environmental climate fluctuations,water quality exhibited improve-ment.The variation trends of indices in sediment mirrored those in water quality,all showing incremental in-creases with the progression of aquaculture,with the highest sediment production occurring between July and September.The total sediment pollutant production coefficient throughout the aquaculture process was calcu-lated to be 25395.22 g/m2.

关 键 词：山塘养殖 罗非鱼 水质指标 沉积物 理化指标 产污系数 

分 类 号：S94[农业科学—水产养殖]