Prevalence of helminth parasites in fishes (Salmo trutta and Schizothorax plagiostomus) in India

In Gurez Valley of Jammu & Kashmir, India, 210 specimens of Salmo trutta and 126 of Schizothorax plagiostomus examined during the present study, 49 (23.33%) and 35 (27.77%) respectively were infected with different types of helminth parasites. The recovered parasites during the study include Adenoscolex oreini and Rhabdochona guptii in S. trutta with a prevalence of 16.19%; 19.52% respectively; and A. oreini; R. guptii and Camallanus fotedari in S. plagiostomus with a prevalence of 19.84%; 22.22% and 18.25% respectively. A. orieni was most prevalent in both hosts during summer (20% & 23.68%), followed by autumn, spring and winter with a prevalence of 18.96% & 19.44%, 11.53% &17.85% and 10% & 16.66% respectively. The same trend was observed in case of R. guptii where the prevalence was 24.28% & 26.31%, 20.68% & 25%; 15.38% & 21.42 and 13.33% & 12.50% during summer, autumn, spring and winter respectively and in case of C. fotedari from S. plagiostomus same trend of prevalence like 23.66%; 22.22%; 14.28 and 8.33 was observed during summer ; autumn; spring and winter respectively. The prevalence of infection of R. guptii was a bit higher than A. oreini and C. fotedari