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VOL. 9, ISSUE 6 (2024)
Seasonal variations in prevalence and intensity of gill lice, Ergasilus, a crustacean parasite on freshwater fishes of Balrampur, U.P.
Authors
Sadguru Prakash, Dharmendra Singh
Abstract
Gill lice, Ergasilus, are common freshwater parasites that
attach to the gill filaments of their host fish. They feed on blood and tissue
of the gills causing extensive damage by reducing blood flow and surface area
for oxygen exchange. The aim of the present investigation was to investigate
the prevalence and mean intensity of gill lice on economically important
freshwater fish Channa punctata (Bloch). In this context, the prevalence
and mean intensity of Ergasilus with respect to fish sexes, length of
fish and season were evaluated statistically. The overall prevalence, mean
intensity and density of Ergasilus infection for freshwater snake headed
fish, Channa punctata (Bloch) were 53.64%, 4.71% and 2.53%,
respectively. The prevalence, mean intensity and density of Ergasilus
infection were higher in small sized fishes followed by larger and medium sized
fishes. The prevalence of infection was higher in female in comparison to male
but the mean intensity and density of infection were higher in male than
female. The highest prevalence of Ergasilus infection were recorded in
spring followed by autumn, winter and summer season. The mean intensity and
density of Ergasilus infection were recorded in spring followed by
autumn, winter and summer season.
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Pages:58-61
How to cite this article:
Sadguru Prakash, Dharmendra Singh "Seasonal variations in prevalence and intensity of gill lice,<i> Ergasilus, </i>a crustacean parasite on freshwater fishes of Balrampur, U.P.". International Journal of Entomology Research, Vol 9, Issue 6, 2024, Pages 58-61
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