DEVARAJ, MGOSWAMI, P. K2017-01-252017-01-251991-07-21http://krishikosh.egranth.ac.in/handle/1/97507en-USsilica, wastes, samplingPOPULATION DYNAMICS OF TWO COMMERCIAL FISH STOCK FROM THE DHIR BEEL ECOSYSTEM IN THE BRAHMAPUTRA BASIN