Population dynamics of glochidia of the freshwater pearl mussel Margaritifera margaritifera L., parasitizing on juvenile Salmonidae fishes in northern water reservoirs
2009
Ieshko, E. P. | Larson, B. M. | Pavlov, U. L. | Barskaya, U. U. | Lebedeva, D. I. | Novohatskaya, O. V.
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).
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