Document Type : Original Research Article
Author
Department of Life Sciences, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
Abstract
The genus Saprolegnia is one of the most important pathogenic aquatic fungi in farmed and wild fish. In this paper, 100 samples were prepared from 10 fish ponds in Sari, Neka and Behshahr. After cultivation, purification and macroscopic and microscopic examinations, we were able to isolate the fungi Saprolegnia parasitka, Saprolegnia and Aclia. Their prevalence was 48% Parasitica, 38% Saprolegnia, 36% Aclias and 15% other fungi, respectively. Their frequencies are 48 Parasitica, 38 Saprolegnia, 36 Aclias and 15 other fungi, respectively. Also, in the study of other parameters and their effect on the presence of Saprolegnia, it was observed that the ambient temperature of the water was suitable for the growth of this fungus and also the pH and salinity of the water also affected the presence of Saprolegnia.
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