• Director-General
    • Project Management Department

      • Planning and Coordination Division
      • Management Division

      The Project Management Department supports research of JSNFRI, coordinates research projects, exchanges information with related institutes and researchers, collects and disseminates information, and manages the library. The Department manages personnel services and affairs, welfare programs, procurement, and budget and facility management.

    • Fisheries Management Department

      • Stock Assessment and Management Group
      • Fisheries Biology Group
      • Coastal Fisheries Resources Group
      • Salmon Resources Research Group

      In the Sea of Japan, valuable fisheries resources include common squid, snow crab, and fish, such as yellow tail. For sustainable management, the Fisheries Management Department collects data at fish markets and from research vessel surveys to produce stock assessments for 14 species based on these data. The Department investigates mechanisms causing population fluctuations, studies animal ecology and life history, provides information on trends, and proposes fisheries management policy. The information is used for determining total allowable catch and other management policies of the Japanese Government. In addition, the Department conducts research and disseminates information pertaining to salmon hatchery technology.

      Japanese Common Squid

      Research on Resource of Snow crab

      Salmon fry

    • Fisheries Oceanography Department

      • Physical Oceanography Group
      • Biological Productivity Group
      • Coastal Productivity and Environment Group

      Fisheries resources are affected by physical environments, such as water temperature, salinity and currents, and by biological conditions, such as phytoplankton and zooplankton. The Fisheries Oceanography Department investigates physical and biological environments through its long-term oceanographic survey in the Sea of Japan, clarifies factors influencing fluctuations of fisheries resources, and contributes to the development of technology to utilize fisheries resources sustainably and efficiently. The Department is responsible for studies that deal with environmental issues, such as the outbreak of giant jellyfish that is affecting fisheries in the Sea of Japan.

      Deployment of mooring system

      Giant jellyfish

      Krill, Inportant prey species

    • Stock Enhancement and Aquaculture Department

      • Stock Enhancement Group
      • Live Food Group

      Fisheries are conducted in shallow coastal waters and in continental shelf waters in the Sea of Japan. The Stock Enhancement and Aquaculture Department conducts research to enhance and utilize rationally the fisheries resources living in these waters. The Department investigates the relationship between living resources, such as juvenile fish, shellfish, and seaweed, and environmental condition in their habitats, such as algal beds and sandy substrates. The Department develops methods for efficient artificial production of juvenile fish and investigates the environmental conditions at release sites.

      Horse-head fish

      Rotifer, prey for seed production
      of marine fishes

    • Mizuho-maru (Research vessel)

      Mizuho-maru(Research vessel)

      The Mizuho-maru is a research vessel built in 1981 and refurbished in1994.
      The vessel conducts research on fisheries resources, environment, and oceanography in the Sea of Japan.

      Length : 38.47m

      Breadth : 6.80m

      Depth : 2.90m

      Gross tonnage : 152 ton

      Speed : 10.60knot

      The maximum loading staff : 24