IAA-APRC 2026
WORKSHOP
October 2–3, 2026 | Ōdate, Japan
WORKSHOP
October 2–3, 2026 | Ōdate, Japan
Welcome to the IAA-APRC Workshop 2026 in Ōdate
Dear Citizen and Friends,
It is my great pleasure to welcome everyone to the first workshop of the IAA Asia-Pacific Regional Chapter (IAA-APRC). This workshop is particularly significant as it is the Chapter’s first official event since its establishment was formally approved in June 2026.
We are delighted to hold this event in Ōdate City, Akita Prefecture, an important habitat for the Japanese crayfish (Cambaroides japonicus), Japan’s only native crayfish species. For many years, Ōdate City has undertaken a variety of conservation initiatives to protect the Japanese crayfish and its habitats, including habitat restoration, captive breeding, distribution surveys, and environmental management. These efforts have contributed not only to the conservation of the Japanese crayfish but also to safeguarding the region’s freshwater ecosystems and biodiversity for future generations.
We sincerely thank Ōdate City, the Ōdate City Board of Education, all other parties involved, and the local community for their generous support in making it possible to hold this workshop at such an important conservation site.
We hope that this workshop will provide a valuable opportunity for researchers, government officials, conservation practitioners, and local communities across the Asia-Pacific region to share their knowledge and experience and discuss future directions for crayfish research and conservation. We also hope that this gathering will foster lasting cooperation across regional and national boundaries and serve as an important step toward developing the IAA-APRC into a leading network for freshwater crayfish research and conservation in the Asia-Pacific region.
Thank you once again for your participation and cooperation. We hope you have a meaningful and rewarding experience in Ōdate.
Seong-Nam Ham
Chair, Asia-Pacific Regional Chapter
Ōdate City is located in northern Akita Prefecture and borders Aomori Prefecture to the north. The Yoneshiro River flows through the city, which is surrounded by mountains and rich natural landscapes. Odate has long developed as an important transportation hub connecting communities across the northern Tohoku region.
Ōdate City is situated in the Odate Basin along the middle reaches of the Yoneshiro River. Surrounded by forested mountains and numerous streams and springs, the city supports a rich variety of freshwater and terrestrial ecosystems.
Ōdate is also an important area for the conservation of the Japanese crayfish (Cambaroides japonicus), Japan’s only native crayfish species. Part of the city is recognized as the southern limit of the species’ distribution and was designated a National Natural Monument in 1934. Because the species is threatened by habitat degradation, declining water quality, collection, and crayfish plague carried by invasive crayfish, Odate City has conducted distribution surveys, habitat restoration, captive breeding, and conservation programs since 2017.