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粘孢子虫是寄生于水生动物的一类病原生物,能引起淡、海水养殖鱼及野生鱼类一系列严重的疾病,而且一经感染,宿主的几乎所有组织器官都将受到影响。这类疾病中,多种病的致病机理已得到很好的阐述。尽管死亡率极小,宿主的死亡是由于严重感染导致机体功能减退、对环境的应激或感染了一些继发病原体。关于自然状态下感染对宿主种群的影响尚不明了,几乎没有仅由粘孢子虫感染引起宿主大批死亡的情况。难以展示粘孢子虫病对宿主种群的影响是与缺乏合适的统计学工具和长期的数据积累有限有关。本文利用Taylor法则及变量与平均比率,对英国的某些河流系统进行研究。数据表明,鲤鱼慢性感染粘液丸虫与鲤科鱼类种群的减少有关
Myxosporidium is a group of pathogens that parasitize aquatic animals and causes a series of serious diseases of light, mariculture and wild fish. Infection, almost all host tissues and organs will be affected. In these diseases, the pathogenesis of many diseases has been well described. In spite of the very small mortality rate, death from a host is due to severe infection leading to hypofunction of the body, stress on the environment or infection with some secondary pathogens. The impact of infection on the host population under natural conditions is not known, and there are few cases where host deaths are caused only by infection with myxospores. The difficulty in demonstrating the impact of myxosporidiosis on host populations is associated with the lack of suitable statistical tools and limited accumulation of long-term data. In this paper, we use the Taylor’s Law and the variables and average ratios to study some of the river systems in the United Kingdom. The data show that carp Chronic infection with viscous Pill Pest and Cyprinidae population reduction