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. DOI: 10.12131/20210183
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. DOI: 10.12131/20210183
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. DOI: 10.12131/20210183
Citation: 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. DOI: 10.12131/20210183

广东近岸海域贝类寄生派琴虫流行病学调查研究

Epidemiology investigation of Perkinsus spp. in shellfish along coastal area of Guangdong Province

  • 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。

     

    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 was 15.67%, 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.

     

/

返回文章
返回