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Marine Symbiosis Lab (Associate Professor Shingo Akita)
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A lab studying seaweed beds formed by marine algae and ways to protect them.
AboutAbout the lab
Protecting seaweed beds, the underwater forests.
Associate Professor Akita's lab studies ways to protect seaweed beds, which are dense communities of seaweed.
Seaweed beds are the foundation that supports coastal fisheries, and they also play a role in fixing carbon dissolved in seawater.
Seaweed beds have declined greatly because of recent environmental changes, so the lab studies the life cycles, physiology, and ecology of kelps and Sargassum species to consider conservation methods.
The lab also conducts a survey of the seaweed species growing at Cape Kattoshi in Hakodate.
Key terms
- seaweed bed
- A place where seaweeds and seagrasses grow together in dense stands. It serves as a habitat for many organisms.
- Sargassum species
- A group of large brown algae with air bladders. Together with kelps, they are the main seaweeds that form seaweed beds.
- population genetics
- A field that examines genetic differences and connections within groups of organisms to clarify the relationships among populations and their diversity.
ResearchResearch themes
Seaweed beds are ecosystems that support biodiversity and coastal fisheries. The lab aims to clarify the physiology and ecology of kelps and Sargassum species, the main species forming seaweed beds, and use that knowledge for seaweed bed conservation.
*Illustrative imageSeaweed Survey of the Hakodate Coast
At Cape Kattoshi in Hakodate, where warm currents and the Oyashio Current mix, the lab regularly surveys which seaweed species grow. The goal is to learn about recent environmental change by comparing with past surveys and to record the current vegetation. Students who join the lab take part in this survey in addition to their own research.
*Illustrative imageSeaweed Bed Conservation from a Genetic Perspective
The lab studies ways to protect existing seaweed beds. Using methods of population genetics, it reveals previously invisible connections among individuals and among populations, as well as genetic diversity, aiming to propose how to decide which areas to prioritize for protection and new conservation methods.
MembersFaculty
- Associate ProfessorShingo Akita
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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: “Kelp forest at Taranga pinnacles Hen and Chicken Islands PA232359” Peter Southwood / CC BY-SA 3.0 (cropped)
- Seaweed Survey of the Hakodate Coast: “Ulva rigida 19880601a” Luis Fernández García / CC BY-SA 4.0 (cropped)
- Seaweed Bed Conservation from a Genetic Perspective: “Kelp forest at Strawberry Rocks PC013138” Peter Southwood / CC BY-SA 3.0 (cropped)
- Related lab (Salmon Biology Lab (Marine Symbiosis Division)): “Chum salmon leaping ( )” U.S. Fish and Wildlife Service Headquarters / Public domain (cropped)
- Related lab (Marine Symbiosis Lab (Associate Professor John Richard Bower)): “Enteroctopus dolfeini” NOAA/R. N. Lea [1] / Public domain (cropped)
- Related lab (Plankton Lab): “Ice algae” Fionajwhite / CC BY-SA 4.0 (cropped)
- Related lab (Animal Ecology Lab): “Hon-yadokari1104-1” ふうけ / CC BY-SA 3.0 (cropped)
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