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۱Dactylogyrids (Dactylogyridae: Monogenea) on Common Carp (Cyprinus carpio L.) in Freshwaters of Iran and Description of the Pathogenicity of D. sahuensis
نویسنده(ها):
اطلاعات انتشار: Journal of Agricultural Science and Technology، هفتم،شماره۱-۲، Apr ۲۰۰۵، سال
تعداد صفحات: ۸
Common carp is infected by five Dactylogyrus spp in both pond and natural lake habitats in Iran, namely D. extensus D. anchoratus, D. achmerovi, D. vastator and D. sahuensis. Fry and fingerlings are more sensitive to infection and their sensitivity is increased with the higher density of fishes usually found in ponds. General gill lesions in dactylogyrosis are quite similar but there are few differences in local lesions among Dactylogyrus spp infecting common carp. In this paper, the geographical distribution of Dactylogyrus spp of common carp is presented and the gill histopathology caused by D. sahuensis is described and discussed.

۲Fish Parasites in Zarivar Lake
نویسنده(ها):
اطلاعات انتشار: Journal of Agricultural Science and Technology، هشتم،شماره۱، Jan ۲۰۰۶، سال
تعداد صفحات: ۱۴
Twenty four ecto– and endo– parasite species were found in different organs of eight native and exotic fish species in Zarivar Lake situated in the far west of Iran. Overall, 1000 fish specimens belonging to the Dactylogyridae, Gyrodactylidae families the Cyprinidae, Poeciliidae and Mastacembelidae families were examined during 2001 and 2002. Of them, five Protozoans, including Trichodina pediculus, Trichodina sp and Myxobolus molnari, a pansporogenic stage of the Myxosporean plasmodia and Ichthyophthirius multifiliis were recorded. Of the Metazoan parasites, 12 monogenean species, mostly belonging to the Dactylogyridae, Gyrodactylidae families and the Ancyrocephalinae subfamily, were found and identified at species and genus level. The number of helminthes reached 15 by adding one Digenea metacercaria (Diplostomum spathaceum) and 2 coelozoic Cestoda species. Crustacean species found on both of native and exotic fishes, belonging to Copepoda and Branchiora orders comprised of Argulus foliaceus and Lernaea cyprinacea, in addition an unknown Argulus was also found on skin and gills of spiny eel which identified to genus level. The only nematode found in the intestine of common carp was identified as Pseudocapillaria tomentosa. Besides the first record of parasites of spiny eel, the seasonal prevalence of ligulosis is presented. Additionally, zoogeographical analysis and species composition of parasitic fauna of Zarivar Lake are discussed.
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