摘要
采用江苏省气象观测站和河蟹生态环境监测站数据,基于以隶属度等技术构建的河蟹闷热灾害、高温热害评估模型,分析2020年河蟹减产原因。结果表明:2020年43 d超长梅雨是河蟹减产的主要气象因素;闷热灾害日数7~17 d,蟹塘溶解氧质量浓度持续偏低,生态环境恶化,影响河蟹正常生长,病害重,病死率高;8月持续高温和9月上旬偏高气温,各养殖区均发生了不同程度的高温热害,最为严重的8月11—25日,各地出现4~10 d中度以上高温热害,河蟹再次受灾,最终导致河蟹养成规格、产量及品质总体不如往年。提出了河蟹养殖高温及闷热灾害防御措施。
Using the data of meteorological observation station and Chinese mitten crab ecological environment monitoring station,based on the evaluation model of Chinese mitten crab muggy disaster and high temperature heat damage constructed by membership technology,it is analyzed that the super long plum rain of 43 days in 2020 is the main meteorological factor for the reduction of crab production.The number of days of muggy disaster is 7-17 days,the dissolved oxygen in crab pond continues to be low,so the ecological environment deteriorates,and the normal growth of the crab is affected with serious diseases and high mortality.With the continuous high temperature in August and the high temperature in early September,different degrees of high-temperature heat damage occurred in all breeding areas.The most serious high-temperature heat damage occurred in all places for more than 4-10 days in August,and the culture of Chinese mitten crab was affected again.Finally,the size,yield and quality of the crab were not as good as those in previous years.Combining with the production examples of small production reduction or small harvest.
作者
林海
张旭晖
时冬头
王雪燕
任义方
钱钰林
黄玲玲
LIN Hai;ZHANG Xuhui;SHI Dongtou;WANG Xueyan;REN Yifang;QIAN Yulin;HUANG Lingling(Research Institute of Freshwater Fisheries of Jiangsu Province,Nanjing,Jiangsu 210017,China;Jiangsu Climate Center,Nanjing,Jiangsu 210009,China;Meteorological Bureau of Gaochun District,Nanjing,Jiangsu 211300,China;Nanjing Fengxin Technology Development Co.,Ltd,Nanjing,Jiangsu 210018,China;Kunshan Meteorological Bureau,Kunshan,Jiangsu 215337,China;Jintan Meteorological Observatory,Changzhou,Jiangsu 213200,China)
出处
《水产养殖》
CAS
2022年第4期5-11,共7页
Journal of Aquaculture
基金
中国气象局国内外产量预报专项“精细化河蟹养殖气象服务技术研究与应用”
江苏省河蟹产业技术体系(JFRS-01)
江苏省“六大人才高峰”项目(NY-265)。
关键词
河蟹养殖
闷热灾害
高温热害
防御措施
江苏
Chinese mitten crab cultivated
Muggy disaster
Heat injury
Preventive measures
Jiangsu
