[The seasonal dynamics of the celozoic stages of Chloromyxum barbi (Myxosporidia) in Hypophthalmichthys molitrix (Osteichthyes)].

Abstract

The seasonal dynamics of C. barbi of two consecutive generations of one-summer old silver carps (Hypophthalmichthys molitrix) from a winter basin was investigated. One maximum of intensity in spring (80 to 100%) and one minimum in summer to early autumn (20% to 0) shows a course of incidence with a pattern of a one-year-cycle of the patent (celozoic) infection in both silver carp populations. C. barbi was also observed in grass carp (Ctenopharyngodon idella) and bighead carp (Aristichthys nobilis). A pathogenic influence of C. barbi to the three Far Eastern cyprinid fish species was not observed.