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Fisheries Resource Science Lab
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A lab that explores how fishery resources rise and fall by studying the growth and migration of fish.
AboutAbout the lab
Keeping fishery resources usable for the long term.
The Fisheries Resource Science Lab conducts research on the sustainable use of fishery resources such as fish.
The lab seeks to understand the mechanisms by which fishery resources increase and decrease, including their relationships with fisheries and with marine and river environments.
To this end, it studies the life history of fish, including their reproduction, growth, survival, and migration.
The lab aims to make this research a scientific foundation for assessing and managing fishery resources.
Key terms
- Life history
- How an organism spends its life from birth to death, including reproduction, growth, and migration
- Diadromous fish
- Fish that spend their lives moving between the sea and rivers, such as eels and salmon
- Otolith
- A small stone-like structure inside a fish's head. Layers accumulate as the fish grows, preserving a record of its growth and migration
ResearchResearch themes
As climate change alters aquatic environments, the lab seeks to understand the mechanisms behind fluctuations in fishery resources, including their relationships with fisheries and the environment. Using fish life history as a clue, it conducts research that forms the scientific basis for the assessment and management of fishery resources.
*Illustrative imageClimate Change and Fluctuations in Fishery Resources
Fishery resources have repeatedly increased and decreased in step with climate variability. By comparing traits such as spawning, growth, and survival across fish species and across seas, the lab investigates the mechanisms that drive resource fluctuations.
*Illustrative imageMigration and Life Cycles of Eels and Salmon
The lab studies the diversity of life histories and migration patterns in diadromous fishes such as eels and salmonids. Through field surveys in rivers and the sea and through otolith analysis, it reconstructs the life history of each individual fish.
*Illustrative imageReading Growth and Migration from Otoliths
Using fish otoliths, the lab estimates life history records such as growth and survival in the early life stages and the areas through which fish have migrated.
*Illustrative imageAquatic Communities and Ecosystems
The lab studies the structure and changes of aquatic communities and ecosystems, and the roles that fishery species play in them. Examples include research on long-term changes in bottom-dwelling organisms in Tokyo Bay and on fish communities investigated through DNA remaining in river water.
MembersFaculty
The lab's members consist of faculty, JSPS Research Fellows, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorAkinori TakasukaPublications ↗
- Associate ProfessorMari KurokiPublications ↗
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Resource Ecology LabFaculty of Agriculture, Major in Aquatic Life SciencesStudies of animals used by humans as resources, elucidating …The information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Underwater view of the sardine run as a dolphin hunts within dense schools of sardines” Stanislav Stelmakhovich / CC0 (cropped)
- Climate Change and Fluctuations in Fishery Resources: “Engraulis japonicus 01” Kingfisher / CC BY-SA 4.0 (cropped)
- Migration and Life Cycles of Eels and Salmon: “Japanese Eel (Yakushima)” Ffish.asia / CC BY 4.0 (cropped)
- Reading Growth and Migration from Otoliths: “Black rockfish otolith cross section - USGS” Vanessa von Biela/USGS / CC BY-SA 3.0 (cropped)
- Aquatic Communities and Ecosystems: “Wild and Scenic Sandy River ( )” BLM Oregon & Washington / Public domain (cropped)
- Related lab (Morita Lab): “Oncorhynchus keta” Focus Saranpat Ouilapan / CC0 (cropped)
- Related lab (International Coastal Research Center · Biological Resource Regeneration Lab): “Hourai Islnd in Otsuchi” Ty19080914 / CC BY-SA 4.0 (cropped)
- Related lab (Marine Ecosystem Variability Lab): “SHINSEI-MARU” Pointerseven / CC BY-SA 4.0 (cropped)
- Related lab (Resource Ecology Lab): “Golden Cuttlefish (Sepia esculenta) ( )” Rickard Zerpe / CC BY 2.0 (cropped)
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