To minimize environmental impact and rehabilitate damaged habitat, we implement a variety of programs to conserve and recover natural environments, including the preparation of protection measures and rehabilitation plans, habitat creation plans for rare species, and monitoring for adaptive management.

To protect the habitat for species conservation, it is necessary to minimize any anthropogenic or naturally induced adverse effects and to create/recover a suitable habitat environment. We have extensive experience in conservation and rehabilitation projects, dealing with the construction of artificial tidal flats and seagrass beds, and the recovery of nature along rivers.

Based on our advanced survey and analysis technique, we prepare environmental conservation/rehabilitation/creation plans. We also adopt an adaptive management approach to maintain flexibility in these projects.

We are also working on the development of new technologies, such as implantation apparatus for corals, which will contribute to marine habitat conservation. We also breed and rear rare species using our rearing facilities, for conservation and translocation purposes.

Goby Scartelaos histophorus

Mud tidal flat created to protect goby Scartelaos histophorus

Surveys to investigate the relationship between riverbank topography and aquatic biodiversity

Conservation/Rehabilitation/Creation

• Rivers and marshes
   ·preparation of rehabilitation plan
   ·surveys on buried seeds, and rehabilitation of reed communities
   ·networking of biotopes, habitat corridors
• Seagrass beds and tidal flats

• Coral reefs (restoration of coral reefs by using coral implantation apparatus)

• Land-water transition zone in natural lakes (modification of waterlevel range with consideration to ecosystem)

• Construction plans for fish-ways, waterfronts with high natural-diversity, artificial coves, artificial pools
• Measures against fish entrainment
• Measures against water-blooms and red tides

• Analysis of suitable sites for nesting and feeding for birds of prey, nest repairing, setup of artificial nests

Translocation and Breeding

• Translocation of salamander (Hynobius takedai), diving beetle (Dytiscus sharpi), giant salamander (Andrias japonicus), weatherfish (Lefua echigonia), crab (Ptychognathus ishii)

• Translocation and breeding of goby Scartelaos histophorus, damselfly Mortonagrion hirosei, corals, seagrasses (e.g. Thalassia hemprichii), submerged vegetation (e.g. Potamogeton dentatus)

Implantation apparatus for coral restoration (upper left)
Status of coral approximately 1 year after translocation