随着寄生范围的扩大，体表失去光泽，粘液分泌量增多，鱼因食欲减退而变得虚弱。
With the expansion of host range, surface of fish becomes dull, mucus secretion increase more, and the fish become weaker due to loss of appetite.
目的调查珠海口岸地区鼠体表寄生虫蚤、革螨、恙螨、蜱、吸虱的种群组成。
Objective To investigate species composition of gamasid mites, chigger mites and flea on the rodent in Zhuhai Port.
目的了解云南省大绒鼠体表寄生恙螨的种类、空间分布情况、优势种及其种间关系。
Objective To understand the species, species distribution, the dominant species and their interspecies interaction of chigger mites on Eothenomys miletus (a dominant species of rats) in Yunnan.
吸虱是寄生于真兽类哺乳动物体表的专性吸血寄生虫，广布于世界各地。
Sucking lice are exclusively hematophagous ectoparasites of eutherian (placental) mammals, and are worldwide distribution.
吸虱是寄生于真兽类哺乳动物体表的专性吸血寄生虫，广布于世界各地。
Sucking lice are exclusively hematophagous ectoparasites of eutherian (placental) mammals, and are worldwide distribution.
应用推荐