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Environmental Ecosystem Engineering Lab
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A lab that studies coastal sea and rice paddy ecosystems and seeks ways to keep using the benefits they provide.
AboutAbout the lab
Sustaining the use of ecosystem functions.
The Environmental Ecosystem Engineering Lab conducts research on the sustainable use of the functions that ecosystems provide.
Its research targets include the cycling of materials in water, the capacity to purify water, and the capacity to nurture living organisms.
Members go out to coastal seas and rice paddies to examine water quality and organisms firsthand.
Using chemical analyses such as stable isotope ratios, as well as environmental DNA, they interpret what is happening in the field.
Key terms
- Blue carbon
- Carbon taken up by marine plants such as seagrass and seaweed and stored in the sea
- Nutrients
- Substances such as nitrogen and phosphorus that phytoplankton and algae need in order to grow
- Environmental DNA
- A method of analyzing DNA left behind by organisms in water and other media to find out which species are present
ResearchResearch themes
The lab aims to ensure that ecosystem functions such as material cycling, environmental purification, and the production of biological resources can continue to be used in the future. It combines field surveys in coastal waters and rice paddies with chemical analyses such as stable isotope ratios.
*Illustrative imageThe Effects of Environmentally Friendly Rice Farming
The lab investigates how much rice farming that reduces pesticides and chemical fertilizers protects biodiversity. In Osaki City, Miyagi Prefecture, it collects water from paddies managed in various ways and conducts water quality analysis and analysis of biological communities using environmental DNA.
*Illustrative imageThe Capacity of Coastal Seas to Store Carbon
Carbon taken up as seagrass and seaweed grow is called blue carbon, and it is expected to be stored in the sea for a long time. The lab is developing methods to assess where, how much, and for how long carbon is stored.
*Illustrative imageExcess Nitrogen and Oyster Aquaculture
When nitrogen released by humans shifts the balance of nutrients in coastal waters, it affects the composition of phytoplankton and the growth of the oysters that feed on them. The lab has set up rearing experiment facilities in Minamisanriku Town to study these effects and how to mitigate them.
*Illustrative imageStudying Organic Matter Drifting in the Sea
Particulate organic matter suspended in seawater consists of phytoplankton, the remains of organisms, and similar material. It serves as food for oysters and other animals, but when it decomposes it causes oxygen depletion on the seafloor. The lab studies its composition and movement in coastal areas, and also researches the use of its chemical composition as an indicator for environmental monitoring.
MembersFaculty
The members of the Environmental Ecosystem Engineering Lab consist of faculty members and technical assistants.
- ProfessorTakashi Sakamaki
- Assistant ProfessorMunehiro Nomura
VoicesStudent voices
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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: “Matsushima miyagi z” Chensiyuan / CC BY-SA 4.0 (cropped)
- The Effects of Environmentally Friendly Rice Farming: “Red Rice Paddy field in Japan 001” Flickr user gtknj / CC BY 2.0 (cropped)
- The Capacity of Coastal Seas to Store Carbon: “Posidonia oceanica meadow - Underwater observation and exploration - Calanque de Sormiou - 2022” Karim saari / CC BY 4.0 (cropped)
- Excess Nitrogen and Oyster Aquaculture: “Crassostrea gigas p1040848” David Monniaux / CC BY-SA 3.0 (cropped)
- Studying Organic Matter Drifting in the Sea: “Diatoms through the microscope” Gordon T. Taylor, Stony Brook University / Public domain (cropped)
- Related lab (Spatial Planning Science Lab): “Aerial view of suburban housing in Blacklick, Ohio, October 2024” Pi. / CC BY-SA 4.0 (cropped)
- Related lab (Environmental Water Quality Engineering Lab): “The coagulation and filtration processes at a drinking water treatment plant. ( )” USEPA Environmental-Protection-Agency / Public domain (cropped)
- Related lab (Sustainable Building Environment Lab): “Alvar aalto, nordjyllands kunstmuseum, )” seier / CC BY 2.0 (cropped)
- Related lab (Water Environment Systems Lab): “Yoneshiro River 201911” Wc018 / CC BY-SA 4.0 (cropped)
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