Ieshko E P, Larson B M, Pavlov Iu l, Barskaia Iu Iu, Lebedeva D I, Novokhatskaia O V
Izv Akad Nauk Ser Biol. 2009 Nov-Dec(6):734-9.
This paper presents data on the population dynamics of glochidia of the freshwater pearl mussel Margaritifera margaritifera L. (1758) (a declining species of European fauna), parasitizing on juvenile Salmonidae fishes in rivers of northern Europe. It was found that the number of glochidia parasitizing on gills of juvenile salmon and trout in explored water reservoirs are stimulated by negative binomial distribution. Estimation of the distribution parameter allows us to obtain statistically valid data on the population number of pearl mussel and to judge the stable character of interactions in the host-parasite system (balance of host specimens that are resistant and nonresistant to infection).
本文呈现了关于淡水珍珠蚌（Margaritifera margaritifera L.，1758年）钩介幼虫种群动态的数据，该物种是欧洲动物群中数量正在减少的物种，其钩介幼虫寄生于北欧河流中的鲑科幼鱼身上。研究发现，在所探究的水体中，寄生于鲑鱼和鳟鱼幼鱼鳃上的钩介幼虫数量呈负二项分布。对分布参数的估计使我们能够获得关于珍珠蚌种群数量的统计学有效数据，并判断宿主 - 寄生虫系统中相互作用的稳定特征（对感染有抗性和无抗性的宿主标本的平衡）。
