Professional work in the field of fisheries. An employee in this class assists in the preservation and development of the nation's fresh water fish resources. Work involves recommending policy measures for the development and conservation of these resources, including control measures for pollution, assisting in research on local species, and administering development projects for economically important fresh water fish. Work includes planning, organising, and coordinating the activities of a group of technical and non-technical workers engaged in the maintenance and development of fresh water fish farming areas. The employee exercises a considerable degree of independence and initiative within the framework of professional principles and departmental policies but work is reviewed by a professional superior for efficiency of programmes and adherence to departmental policies through inspections, reports, and discussions.