抄録
We analyzed 325 cetacean live stranding cases recorded in the ICR Stranding Database 001201. In large species, killer whale Orcinus orca, short-finned pilot whale Globicephala macrorhynchus, false killer whale Pseudorca crassidens and Cuvier's beaked whale Ziphius cavirostris showed high ratio of live stranding. In small species, striped dolphin Stenella coeruleoalba, spotted dolphin Stenella attenuate, Risso's dolphin Grampus griseus, common dolphin Delphinus delphis and Kogia sp. also showed high ratio of live stranding. Most of these species were thought to be species which evolved social structure and/or subtropical pelagic species. On the other hand, Pacific white-sided dolphin Lagenorhynchus obliquidens and finless porpoise Neophocaena phocaenoides rarely live stranded in spite of large number of stranding records. Survival time of stranded cetaceans seemed to be within 48 hours (2days). Survival rate of stranded cetaceans rescued and cared in aquariums suggested that most of the live stranded animals released to the sea might die, in spite of rescue effort. Case study of a live stranding of a sperm whale Physeter macrocephalus in April 2000 suggested that 1) official conduct with support of whale scientists was important in the rescue of large species, 2) euthanasia of stranded whales should be considered for humane treatment.
https://ror.org/04r8tsy16 
