Sample List : Bivalves
- Bikuni, Shakotan
- Cape Erimo, Erimo
- Cape Itanki, Muroran
- Cape Sashirui, Rausu
- Chiwase Shore, Shimamaki
- Embetsu Fishing-Port, Teshio
- Esan, Hakodate
- Hanasaki-Lighthouse, Nemuro
- Kaminokuni Fishing-port, Kaminokuni
- Mombetsu Port, Monbetsu
- Nemuro Bay, Nemuro
- Noduka, Rishiri
- Ofuyu, Ishikari
- Omu, Mombetsu
- Saruru Port, Mombetsu
- Senjoiwa, Esashi
- Senposhi, Rishiri
- Shiomi Fishing-Port, Mukawa
- Shiranuka Fishing-Port, Shiranuka
- Shokotsu, Mombetsu
- Shosambetsu, Tomamae
- Soya, Wakkanai
