International Journal of Zoology and Applied Biosciences
Year : 2023 | Volume: 8 | Issue: 3 | Pages: 19-21
Studies on the biomass production of Macrobrachium rosenbergii (Giant river prawn) in relation to physiochemical parameters at river Kosi, Saharsa, Bihar
Suruchi Chandra, Arun Kumar and Bhuwan Bhaskar Mishra
Received on: 2023-03-22
Revised on: 2023-04-13
Accepted on: 2023-04-23
Published on: 05/02/2023
Suruchi Chandra, Arun Kumar and Bhuwan Bhaskar Mishra( 2023).
Studies on the biomass production of Macrobrachium rosenbergii (Giant river prawn) in relation to physiochemical parameters at river Kosi, Saharsa, Bihar. International Journal of Zoology and Applied Biosciences, 8( 3), 19-21.
click to view the cite format
The current study describes the giant river prawn (Macrobrachium rosenbergii) survival rate, mean body weight, length, and biomass production in relation to the water quality parameters at the two distinct sites of the river Kosi viz. Mahisi block and Nauhatta blocks at Saharsa, Bihar. Together with physiochemical data including temperature, pH, dissolved oxygen, and salinity, the study demonstrates seasonal variation. The study was carried out over the course of four seasons-monsoon, winter, spring and summer - from July 2019 to June 2020. These physiochemical parameters have a significant impact on M. rosenbergii growth and development. Dissolved oxygen and salinity are the two key variables that have an effect on the biomass production of prawns, as well as their size, length, and survival rate. The study also demonstrates that the water quality, which is caused by industrial area pollution as well as domestic wastes, weeds, etc., causes the quantity and quality of prawns (M. rosenbergii) to decline in Mahisi block Saharsa, Bihar, whereas the Nauhatta blocks area exhibits better water quality than Mahisi block as well as increases in biomass production and giant river prawn numbers. As a result, the study sheds light on the physiochemical analysis of water, particularly dissolved oxygen and salinity, which have a significant impact on the development and flourishing of the giant river prawn. These prawns are of the wild type and are found in the river water of Kosi, a freshwater stream, without any human intervention.
Macrobrachium rosenbergii, Mahisi block, Nauhatta block, Seasonal variation.