| 广东近岸海域贝类寄生派琴虫流行病学调查研究 |
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| 引用本文： | 杨小彤,叶灵通,卢洁,姚托,王江勇,付耀武,张其中.广东近岸海域贝类寄生派琴虫流行病学调查研究[J].南方水产科学,2022,18(1):128-134. |
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| 作者姓名： | 杨小彤 叶灵通 卢洁 姚托 王江勇 付耀武 张其中 |
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| 作者单位： | 天津农学院 水产学院,天津 300462;中国水产科学研究院南海水产研究所/农业农村部水产品加工重点实验室/农业农村部南海渔业资源开发利用重点实验室,广东 广州 510300;中国水产科学研究院南海水产研究所/农业农村部水产品加工重点实验室/农业农村部南海渔业资源开发利用重点实验室,广东 广州 510300;天津农学院 水产学院,天津 300462;惠州学院,广东 惠州 516007;暨南大学/水生生物研究中心/热带亚热带水生态工程教育部工程研究中心,广东 广州 510632 |
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| 基金项目： | 财政部和农业农村部国家现代农业产业技术体系资助;中国水产科学研究院创新团队项目(2020TD42);2020年省级乡村振兴战略专项资金(渔业产业发展)(粤财农[2020]4);广东省贝藻类产业技术体系(2021KJ146);惠州学院教授、博士启动项目(2020JB065);暨南大学热带亚热带水生态工程教育部工程研究中心开放基金项目(2021A0301)。 |
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| 摘 要： | 贝类一般在开放式海域养殖,这使得贝类病害防控工作很难开展,因此调查病原流行感染规律对贝类病原的发生、发展和防治尤为重要。文章采用常规PCR技术,调查了广东近岸6个养殖海域5种重要养殖贝类寄生派琴虫的感染情况,分析了贝类寄生派琴虫感染的时空变化情况。结果显示,共检测到2种派琴虫,其中北海派琴虫(Perkinus beihaiensis)总感染率显著高于奥尔森派琴虫(P.olseni)。5种检测的贝类中,除福建牡蛎(Crassostrea angulata)以外,均检测到派琴虫感染,其中香港牡蛎(C.hongkongensis)、杂色鲍(Haliotis diversicolor)感染2种派琴虫,马氏珠母贝(Pinctada martensii)、华贵栉孔扇贝(Chlamys nobilis)仅感染奥尔森派琴虫。湛江、阳江、江门等粤西地区派琴虫感染率为17.17%,显著高于汕尾、揭阳、汕头等粤东地区。夏秋季派琴虫的感染率为15.67%,显著高于冬春季。不同海域中,贝类派琴虫的感染受寄主的养殖环境、养殖方式、摄食方式、栖居方式等综合因素影响而使其季节动态呈现不同变化趋势。
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| 关 键 词： | 贝类 北海派琴虫 奥尔森派琴虫 季节动态 广东近岸海域 |
Epidemiology investigation of Perkinsus spp. in shellfish along coastal area of Guangdong Province |
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| YANG Xiaotong,YE Lingtong,LU Jie,YAO Tuo,WANG Jiangyong,FU Yaowu,ZHANG Qizhong.Epidemiology investigation of Perkinsus spp. in shellfish along coastal area of Guangdong Province[J].South China Fisheries Science,2022,18(1):128-134. |
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| Authors: | YANG Xiaotong YE Lingtong LU Jie YAO Tuo WANG Jiangyong FU Yaowu ZHANG Qizhong |
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| Institution: | (College of Fisheries,Tianjin Agricultural University,Tianjin 300462,China;South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences/Key Laboratory of South China Sea Fishery Resources Exploitation&Utilization,Ministry of Agriculture and Rural Affairs,Guangzhou 510300,China;Huizhou University,Huizhou 516007,China;Jinan University/Research Center of Hydrobiology/Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education,Guangzhou 510632,China) |
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| Abstract: | Shellfish are generally cultured in open sea areas,which makes it difficult to carry out shellfish disease prevention and control.Therefore,investigating the epidemic infection law of pathogens is particularly important for the occurrence,development and control of shellfish pathogens.In this paper,we applied common PCR(Polymerase Chain Reaction)technology to investigate the seasonal dynamics and spatio-temporal distribution of Perkinsus spp.among five mainly cultivated shellfish in the six aquaculture locations along the coastal area of Guangdong Province.Two Perkinsus spp.were detected(P.beihaiensis and P.olseni).The prevalence of P.beihaiensis was significantly higher than that of P.olseni.Among the five sampled shellfish species except Crassostrea angulate,all were infected by Perkinsus spp.,and C.hongkongensis and Haliotis diversicolor were infected by two Perkinsus spp.,while Pinctada martensii and Chlamys nobilis were only infected by P.olseni.The prevalence of Perkinsus spp.in western Guangdong,including Zhanjiang,Yangjiang and Jiangmen was 17.17%,significantly higher than that in eastern Guangdong,including Shanwei,Jieyang and Shantou.The prevalence of Perkinsus spp.in summer and autumn was15.67%,significantly higher than that in winter and spring.In different coastal areas,the seasonal occurrence variation of Perkinsus spp.might be affected by the host’s culture environment,cultivated mode,feeding type,living type and other comprehensive factors. |
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| Keywords: | Shellfish Perkinsus beihaiensis Perkinsus olseni Seasonal occurrence Coastal area of Guangdong Province |
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