摘要
实验结果表明:在冬季即将放水干枯的虾塘中,携带WSBV的厚蟹可达15%,其中有88.9%的病蟹能活至翌年春天,并引起新的白斑综合症爆发。用患白斑综合症的斑节对虾投喂厚蟹和虎头蟹,只能引起40%的死亡率。用发病虾塘的幼厚蟹投喂斑节对虾,在6d内引起死亡率达73.9%,死亡的斑节对虾具有典型的白斑综合症病征。根据研究的结果,我们认为厚蟹是WSBV的越冬宿主。
The experiments showed that there were 15% crabs (Helice sp.) with WSBV in the cultured shrimp ponds in winter, about 88.9% of the crabs could over winter, and then they could cause white spot syndrome (WSS) in the next year. When the crabs (Helice sp. and Orithyia mammillaris) were fed with diseased shrimps (Penaeus monodon), the morality of the crabs was only 40%. When the normal prawns (Penaeus monodon) were fed with the juvenile crabs (Helice sp.) from the diseased cultureed prawns ponds, the morality of the prawns , with the typical symptom of WSS , was about 73.9% in 6 days. By the results of research, the crabs (Helice sp.) were considered to be the host of WSBV in winter.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2003年第1期48-52,共5页
Marine Environmental Science
关键词
对虾
白斑综合症杆状病毒
越冬
宿主
shrimp
white spot syndrome baculovirus
in winter
host
