DR. J. P. GEORGEK. M. Manoj2018-07-122018-07-121997-05-30http://krishikosh.egranth.ac.in/handle/1/5810059523en-USnullHYDROBIOLOGY OF POKKALI FIELDS & THEIR IMPACT A SHELL FISHES IN ERNAKULAM DIST. KERALA.Thesis