Host–parasite dynamics often vary over time, brought about by changes in the parasite’s virulence or host’s ability to resist tolerate parasite. Although evolution microparasites is well studied, we know little temporal change pathogenicity of macroparasites such as blood-feeding insects. Using data collected 35 yr, report a reduction hematophagous swallow bug (Cimex vicarius) on its Cliff Swal...

  Two hundred forty seven species of parasites from Iranian freshwater fishes are presented in this synopsis. The parasites were recorded from infestations in fish from different parts of the country and summarized according to host species, organs were the parasite infestations occurred, province, faunal region and reference numbers. The following aspects of parasite infestations were a...