Nature of Fisheries Extension, Marine Fisheries Problems, Social Factors and Allied Primary Industries, Objectives of a Marine Fisheries Service, Communication and Flow of Information, Demonstration and Development Programmes, Extension and Appropriate Technology, Extension and Co-operative Development, Requirements of a Fisheries Extension Officer, Coastal Zone Management and Fisheries Extension, Fisheries Extension and Traditional Management, Fisheries Extension and Traditional Management, Fisheries Extension System in India-Problems, Fisheries Extension Research in India, Future of Fisheries Extension, Bibliography of Fisheries Extension Education and Socio-economics.