Stranding News (last update date: 20, February, 2025)
- 26, July, 1991
- Unidentified Mesoplodon(s) dead stranding Kashiwazaki-shi Niigata-ken
- 15, July, 1991
- Steller sea lion(s) live stranding Mie-ken
- 10, July, 1991
- Risso's dolphin(s) live stranding Kahoku-gun Uchinada-Machi Ishikawa-ken
- 03, July, 1991
- Humpback whale(s) dead stranding Fujisawa-shi Kanagawa-ken
- 24, June, 1991
- Common dolphin(s) by-caught Joetsu-shi Niigata-ken
- Baird's beaked whale(s) dead stranding Shimokita-gun Higashidori-Mura Aomori-ken
- 18, June, 1991
- Unidentified dolphin(s) Tottori-ken
- 16, June, 1991
- Rough-toothed dolphin(s) live stranding Fukuoka-ken
- 15, June, 1991
- Minke whale(s) dead stranding Ishikawa-ken
- 14, June, 1991
- Minke whale(s) by-caught Kamogawa-shi Chiba-ken
- 12, June, 1991
- Humpback whale(s) by-caught Yokosuka-shi Kanagawa-ken
- 05, June, 1991
- Pacific white-sided dolphin(s) by-caught Iwate-ken
- 04, June, 1991
- Melon-headed whale(s) live stranding Mie-ken
- 01, June, 1991
- Humpback whale(s) strayed into a cove Toba-shi Mie-ken
- 31, May , 1991
- Finless porpoise(s) dead stranding Hekinan-shi Aichi-ken
- 30, May , 1991
- Unidentified whale(s) dead stranding Katsuura-shi Chiba-ken
- 28, May , 1991
- Dall's porpoise(s) dead stranding Toyoka-shi Hyogo-ken
- 24, May , 1991
- Spinner dolphin(s) dead stranding Tokoro-gun, Tokoro-cho Hokkaido
- 14, May , 1991
- Unidentified Ziphiid(s) dead stranding Suzu-shi Ishikawa-ken
- Pacific white-sided dolphin(s) by-caught Nyuu-gun Echizen-Cho Fukui-ken
