鱼类寄生虫动态变化相关生态因子的研究进展

Progress on ecological factors affected fish parasites dynamical changes

寄生虫所造成的疾病给养殖鱼类造成了较大损失,研究寄生虫的动态变化规律在寄生虫的防治中具有重要意义。宿主、寄生虫、环境三者之间相互作用,引起养殖鱼类寄生虫的动态变化,水体环境的各种因子,无不直接或间接地作用于寄生虫。分别从物理因子、化学因子、生物因子等方面分析其对寄生虫动态变化的影响;综合其多种生态因素的相互作用,分析采用数学建模、风险评估方法,建立寄生虫病害发生预测预报的可能性;同时提出生态防控技术在鱼类寄生虫疾病防治中具有广阔前景。

The diseases caused by parasites resulted in great loss to fish culture worldwide. Studies on dynamic changes of parasites on fish played an important role in parasites control. The interaction among parasites, host and the environment caused dynamic changes of parasites living on fish. Various factors in water environment affected the fish parasites directly or indirectly. The effects of physical factors, chemical factors, biological factors and other aspects on fish parasite were elaborated in this paper. Combined with the interaction of the various ecological factors, the possibility of establishing pathogenic disease forecast system was put forward; the prospects of using ecological methods for the prevention and control of fish parasites were also proposed.