 Its services cover the broad areas of fishing gear technology, marine engineering, fishing ground surveys and stock assessment, post-harvest technology as well as development and improvement of aquaculture techniques.SEAFDEC is currently made up of 11 Member Countries, namely Brunei Darussalam, Cambodia, Indonesia, Japan, Lao PDR, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Vietnam, and has the Council of Directors, composed of nominees from Member Countries, as policy-making body to provide directives and guidance on activities of the Center.The Center has a Secretariat as its administrative arm, and four technical Departments, namely the Training Department (TD) in Thailand, the Marine Fisheries Research Department (MFRD) in Singapore, the Aquaculture Department (AQD) in the Philippines, and the Marine Fishery Resources Development and Management Department (MFRDMD) in Malaysia, Inland Fishery Resources Development and Management Department (IFRDMD)  in Indonesian

The chief administrator of SEAFDEC is the Secretary-General (Dr.Chumnarn Pongsri) whose various responsibilities are directed towards the unification of the activities of the four Departments.