Water Environment:

This discipline is concerned with the environment where the Fish habitats. It is sub divided into three areas that is limnology for water quality, invertebrates which are both micro invertebrates (Zooplanktons) and macro invertebrates like insect and phytoplankton (algae).

Fish biology:

This discipline is sub divided into four areas that is fish biology and ecology which study the fish habitations, fisheries taxonomy concerned with the fish types, fish genetics which studies fish genes and fish stock assessment which deals in the quantity of fish available in the water.

Socio-economics:

This section deals with the socio economic aspects of the fishery and its impacts on the economy and livelihoods.

Marine section:

This section deals with marine engineering. It designs, develops and coordinates maintenance and repair of marine machinery and related equipment, marine mechanical under general supervision interprets blue prints, sketches or verbal.

Support to Research:

Financial Section: Deals in coordinating and compiling the institute's annual financial budget. It also prepares monthly and annual statutory accounting reports.
Information and Data centre: It is the heart of the institute responsible for all the institute information. It receives a broad range of print and electronic information. It also ensures that the institute is subscribed to current scientific journals.  It has a library, electronic information management and outreach program.
Procurement Section: It guides, coordinates and procures institutes’ equipments and services according to the proved plans in accordance with the procurement policy. It also monitors and tracks the market prices for costs of materials, goods and services in order to control expenditure and ensure efficient use of Organisational resources.
Human Resource and Administration: It co-ordinates and plans for human resource activities of the institute such as the recruitment and selection performance and management, training, development, payment, promotion and benefits as well as the employee relations.