Performance Evaluation of Growth Parameters for Mystus cavasius (Hamilton-Buchanan, 1822) in Relation to Different Stocking Densities Cultured in a FRP Tank
Ankur Rajbongshi *
Department of Fisheries Resource Management, College of Fisheries, Assam Agricultural University (AAU), Raha, Assam, India.
Bipul Phukan
Department of Fisheries Resource Management, College of Fisheries, Assam Agricultural University (AAU), Raha, Assam, India.
Rinku Gogoi
Department of Fisheries Resource Management, College of Fisheries, Assam Agricultural University (AAU), Raha, Assam, India.
Jiten Sharma
Department of Fisheries Resource Management, College of Fisheries, Assam Agricultural University (AAU), Raha, Assam, India.
Asifa Najnin
Department of Fisheries Resource Management, College of Fisheries, Assam Agricultural University (AAU), Raha, Assam, India.
Hemanta Pokhrel
Department of Fisheries Resource Management, College of Fisheries, Assam Agricultural University (AAU), Raha, Assam, India.
Manab Jyoti Barman
Fisheries Resource Management Division, Central Institute of Fisheries Education, Versova, Mumbai 400 061, India.
*Author to whom correspondence should be addressed.
Abstract
The present study was undertaken to develop a practical and economically viable methodology for mass seed production and rearing of M. cavasius in a controlled management system for getting maximum production. This three-month monoculture study investigated the impact of varying stocking densities on the growth performance, survival, and water quality parameters of Mystus cavasius. The study was conducted from April-June, 2023. A Complete Randomization Design (CRD) was employed, utilizing three distinct stocking densities: 100 individuals/decimal (T1), 150 individuals/decimal (T2), and 200 individuals/decimal (T3), each with two replications.Fortnightly, measurements were taken for key water quality parameters including temperature, dissolved oxygen (DO), pH, and transparency. The results revealed significant differences (P < 0.05) between the treatments across these parameters and growth performance. Notably, the highest length and weight were observed in the T1 treatment while the lowest stocking density (T1) yielded a superior growth rate coupled with maximum survivability. In conclusion, these findings suggest that a comparatively lower stocking density for Mystus cavasius in enclosed culture systems not only enhances production but also contributes to the maintenance of optimal water quality parameters.
Keywords: Mystus cavasius, growth performances, survival rate and water quality parameters