Stranding News (last update date: 20, February, 2025)
- 15, May , 1987
- Spotted seal(s) dead stranding Hiro-gun Hiro-Cho Hokkaido
- 14, May , 1987
- Spotted seal(s) dead stranding Hiro-gun Taiki-Cho Hokkaido
- 12, May , 1987
- Spotted seal(s) dead stranding Hokkaido
- 11, May , 1987
- Spotted seal(s) dead stranding Urakawa-gun Urakawa-Cho Hokkaido
- 10, May , 1987
- Risso's dolphin(s) Yaeyama-gun Taketomi-Cho Okinawa-ken
- 09, May , 1987
- Ringed seal(s) dead stranding Hiro-gun Hiro-Cho Hokkaido
- 06, May , 1987
- Spotted seal(s) live stranding Hachinohe-shi Aomori-ken
- Harbour seal(s) dead stranding Nemuro-shi Hokkaido
- Spotted seal(s) dead stranding Kushiro-shi Hokkaido
- 05, May , 1987
- Unidentified dolphin(s) Niigata-ken
- 04, May , 1987
- Spotted seal(s) dead stranding Akkeshi-gun Hamanaka-Cho Hokkaido
- 24, April, 1987
- Cuvier's beaked whale(s) live stranding Hokkaido
- 16, April, 1987
- Minke whale(s) Miura-shi Kanagawa-ken
- 08, April, 1987
- Unidentified Kogia(s) Nago-shi Okinawa-ken
- 07, April, 1987
- Finless porpoise(s) by-caught Toba-shi Mie-ken
- Dwarf sperm whale(s) live stranding Fukuoka-shi Fukuoka-ken
- 06, April, 1987
- Pantropical spotted dolphin(s) strayed into a harbor Shimoda-shi Shizuoka-ken
- Pacific white-sided dolphin(s) by-caught Nanao-shi Ishikawa-ken
- 05, April, 1987
- Dall's porpoise(s) live stranding Joetsu-shi Niigata-ken
- 04, April, 1987
- Northern fur seal(s) Niigata-ken
