Stranding News (last update date: 20, February, 2025)
- 31, May , 1990
- False killer whale(s) dead stranding Imabari-shi Ehime-ken
- 27, May , 1990
- Unidentified Kogia(s) dead stranding Ogasawaramura Tokyo-to
- 21, May , 1990
- Finless porpoise(s) dead stranding Hekinan-shi Aichi-ken
- 19, May , 1990
- Dall's porpoise(s) by-caught Ishikawa-ken
- 16, May , 1990
- Dugong(s) by-caught Nago-shi Okinawa-ken
- 10, May , 1990
- Spotted seal(s) live stranding Tokachi-gun Urahoro-Cho Hokkaido
- 08, May , 1990
- Spotted seal(s) Kushiro-shi Hokkaido
- 03, May , 1990
- Dall's porpoise(s) dead stranding Tottori-shi Tottori-ken
- 30, April, 1990
- Minke whale(s) by-caught Ishikawa-ken
- 09, April, 1990
- Pacific white-sided dolphin(s) dead stranding Tottori-shi Tottori-ken
- 08, April, 1990
- Fin whale(s) dead stranding Sakai-shi Osaka-fu
- 06, April, 1990
- Finless porpoise(s) by-caught Fukuoka-shi Fukuoka-ken
- 05, April, 1990
- Cuvier's beaked whale(s) live stranding Shizuoka-ken
- Cuvier's beaked whale(s) Numazu-shi Shizuoka-ken
- Cuvier's beaked whale(s) Numazu-shi Shizuoka-ken
- Cuvier's beaked whale(s) Numazu-shi Shizuoka-ken
- 31, March, 1990
- Unidentified baleen whale(s) by-caught Tsuruoka-shi Yamagata-ken
- 28, March, 1990
- Ginkgo-toothed beaked whale(s) live stranding Muroran-shi Hokkaido
- 25, March, 1990
- Stejneger's beaked whale(s) live stranding Wajima-shi Ishikawa-ken
- 21, March, 1990
- Pacific white-sided dolphin(s) dead stranding Fukui-ken
