Fisheries not only gives nutritional security to people, it also provides livelihood, to millions of people the extension communication/media are the great part of any work/research/study without which no body knows what is going on in this changing world. The book deals with fishery extension, communication, communication process, training, training management project, project formulations. Project preparations shrimp, carp cum prawn farming, its feasibility sensetivity, entrepreunership, ecosystem structure and some models. A comprehensive knowledge of fishery extension, training and enterpreneurship has been given in this book to link farmers, students, trainers, extension workers, teachers and entrepreneurs to achieve the goal of maximum production and employment.