Innovation : The Research Concept ISSN: 2456–5474 RNI No. UPBIL/2016/68367
Vol.-6* Issue-1* February- 2021)
Paper Submission: 03/02/2021, Date of Acceptance: 16/02/2021, Date of Publication: 25/02/2021
Ajay Kumar
Assistant Professor,
Dept. of Zoology,
Dr. B.R. Ambedkar Govt. Girls
P G College,
Fatehpur, U.P., India
Abstract
Dissolved oxygen is one of the most important environmental
factors to sustain lives of fish and other aquatic organisms which rely on
aquatic respiration alone. In oxygen deficient environment the supply of
oxygen is less than required or consumption exceeds supply. Dissolved
oxygen in such condition can decline from the levels required by most
animal lives generating hypoxic condition.
Low oxygen concentration occurs in a wide range of aquatic
systems and range in temporal frequency, seasonality and persistence.
These have always been naturally occurring low oxygen habitat but
anthropogenic activities related primarily to organic and nutrient
enrichment have led to increase in hypoxia and anoxia both in fresh as
well as marine system. Freshwater systems are more frequently faced
with low oxygen condition and fishes in a tropical country like India are
quite frequently exposed to this. The general public is aware of the
results of hypoxia as the phenomenon of “Fish Kills” occurring frequently
in natural waters.
for full paper please visit below link :
http://www.socialresearchfoundation.com/upoadreserchpapers/6/411/2105230952321st%20ajay%20kumar%2013758.pdf
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