نتایج جستجو برای: myxobolus orissae
تعداد نتایج: 414 فیلتر نتایج به سال:
In the last few years two factors have helped to significantly advance our understanding of the Myxozoa. First, the phenomenal increase in fin fish aquaculture in the 1990s has lead to the increased importance of these parasites; in turn this has lead to intensified research efforts, which have increased knowledge of the development, diagnosis. and pathogenesis of myxozoans. The hallmark discov...
انگل‌های داخلی و خارجی 4 گونه ماهی بومی و معرفی شده تالاب حنا در شهرستان سمیرم استان اصفهان، در طول پائیز و زمستان 1386، بهار و تابستان ۱۳۸۷ مورد بررسی قرار گرفتند. در مجموع تعداد ۱۲0 نمونه ماهی بوسیله دام گوشگیر و تور پره صید و در آزمایشگاه بررسی شدند. براساس نتایج بدست آمده انگل Trichodina perforata در پوست و آبشش ماهی کاراس Carassius auratus auratus و سه گونه زالوی Glossiphonia heteroclita،...
A total of 76 specimens of three fish species including: Hemiculter lucisculus (41), Liza auratus (16) and Gasterosteus aculeutus (19) were caught using handnet from 3 station in Zardi River in the south-eastern costal of Caspian Sea at autumn and winter 2009 and spring 2010. The fishes were transported alive to the laboratory of Shahid Rajaee Site. They were killed by cutting their spinal cord...
The occurrence and distribution of the myxosporida Myxosoma funduli on the gills of the plains killifish (Fundulus kansae) were investigated; Fundulus kansae is reported as a new host. Host samples from various sites on the South Platte River, Nebraska, were collected during the summer months of 1975 and 1976. The protozoan parasite population was shown to be overdispersed within the host popul...
Introduced species and infectious diseases both independently pose challenges for the preservation of existing biodiversity. However, native species or disease hosts are by no means 'unarmed' when faced with novel environmental challenges, provided that adequate adaptive genetic variation exists to mount effective evolutionary responses. In this study, we examined the consequences of the recent...
Empirical estimates of pathogen prevalence in samples of fish may underestimate true prevalence because available detection techniques are incapable of perfect detection. Trout of several species were collected from enzootic (Myxobolus cerebralis, causative agent in whirling disease) habitats, and individual fish were examined for presence of the parasite two or six times by one of four methods...
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