Stranding News (last update date: 20, February, 2025)
- 01, July, 1983
- Finless porpoise(s) Himeji-shi Hyogo-ken
- 24, June, 1983
- Pacific white-sided dolphin(s) by-caught Yamakoshi-gun Oshamanbe-Cho Hokkaido
- 23, June, 1983
- Finless porpoise(s) by-caught Himeji-shi Hyogo-ken
- 08, June, 1983
- Finless porpoise(s) dead stranding Toba-shi Mie-ken
- 30, May , 1983
- Finless porpoise(s) drift Yokohama-shi Kanagawa-ken
- 23, May , 1983
- Minke whale(s) by-caught Himi-shi Toyama-ken
- 22, May , 1983
- False killer whale(s) Miyazaki-shi Miyazaki-ken
- 19, May , 1983
- Sea otter(s) by-caught Menashi-gun Rausu-Cho Hokkaido
- 14, May , 1983
- Spotted seal(s) dead stranding Kushiro-gun Kushiro-Cho Hokkaido
- 13, May , 1983
- Harbour seal(s) dead stranding Horoizumi-gun Erimo-Cho Hokkaido
- Harbour seal(s) dead stranding Horoizumi-gun Erimo-Cho Hokkaido
- Harbour seal(s) dead stranding Nemuro-shi Hokkaido
- 12, May , 1983
- Finless porpoise(s) by-caught Kitaibaraki-shi Ibaraki-ken
- 10, May , 1983
- Spotted seal(s) dead stranding Samani-gun Samani-Cho Hokkaido
- 05, May , 1983
- Pacific white-sided dolphin(s) by-caught Chiba-ken
- 04, May , 1983
- Pacific white-sided dolphin(s) strayed into a harbor Yokosuka-shi Kanagawa-ken
- Spotted seal(s) dead stranding Horoizumi-gun Erimo-Cho Hokkaido
- 03, May , 1983
- Spotted seal(s) dead stranding Hiro-gun Taiki-Cho Hokkaido
- 22, April, 1983
- Harbour porpoise(s) by-caught Aomori-ken
- 18, April, 1983
- Minke whale(s) by-caught Awa-gun Kyonan-Machi Chiba-ken