Stranding News (last update date: 20, February, 2025)
- 21, April, 1984
- Ribbon seal(s) dead stranding Hokkaido
- 20, April, 1984
- Harbour porpoise(s) by-caught Hokkaido
- Ribbon seal(s) by-caught Hokkaido
- 19, April, 1984
- Harbour porpoise(s) by-caught Hokkaido
- Spotted seal(s) dead stranding Yamakoshi-gun Oshamanbe-Cho Hokkaido
- 14, April, 1984
- Spotted seal(s) dead stranding Miyagi-ken
- Ribbon seal(s) live stranding Kushiro-shi Hokkaido
- 12, April, 1984
- Ribbon seal(s) live stranding Hiro-gun Taiki-Cho Hokkaido
- 11, April, 1984
- Ribbon seal(s) live stranding Kushiro-shi Hokkaido
- 08, April, 1984
- Ribbon seal(s) Shiranuka-gun Shiranuka-Cho Hokkaido
- 16, March, 1984
- Stejneger's beaked whale(s) by-caught Miyazu-shi Kyoto-fu
- 13, March, 1984
- Finless porpoise(s) dead stranding Chita-gun Mihama-Cho Aichi-ken
- Finless porpoise(s) dead stranding Chita-gun Minamichita-Cho Aichi-ken
- Finless porpoise(s) dead stranding Aichi-ken
- 12, March, 1984
- Steller sea lion(s) Oga-shi Akita-ken
- 06, March, 1984
- Harbour porpoise(s) live stranding Aomori-ken
- 04, March, 1984
- Northern fur seal(s) strayed into a river Nagoya-shi Aichi-ken
- 12, February, 1984
- Northern fur seal(s) Tsu-shi Mie-ken
- 10, February, 1984
- Northern fur seal(s) live stranding Aichi-ken
- 17, January, 1984
- Minke whale(s) by-caught Higashimuro-gun Nachikatsuura-Cho Wakayama-ken