Saurav Kumar & Arun Kumar*
University Department of Zoology, B.N.Mandal University, Madhepura, Bihar, India
Received : 28th December, 2022 ; Revised : 29th January, 2023
Abstract– The Swamp of Hasanpur Barahi, Madhepura district in the state of Bihar is where the current work was done in 2022. It is known that planktonic organisms can interact with a variety of water contaminants. According to data analysis, the months of October 2022 during the observation period had the highest monthly abundance of zooplankton. Copepods were the most prevalent group of zooplankton. When rotifers populations are high in a given month, it means that untreated residential sewage from the catchment region has entered directly and contaminated the organic matter. Since May 2022 was when the greatest and minimum diversity (D) was discovered, it is clear that the community in this area is generally stable. According to the current study, the winter population maxima of copepods can be related to favourable temperature and the abundance of food, including bacteria, nano-plankton, and suspended detritus.
Key words: Hasanpur Barahi Swamp, zooplankton, population maxima