Since mid-March, seabirds and marine mammals that appear to have been infected with highly pathogenic avian influenza, which has a high fatality rate, have been confirmed on the eastern coastline of Hokkaido. 　Volunteers are conducting their own surveys in Nemuro City, and as of the 4th, a total of 614 dead seabirds, seals, and sea otters have been confirmed.

A six‑meter whale, likely a northern bottlenose whale, washed ashore in Njarðvík at Borgarfjörður Eystri on Good Friday. Locals notified Icelandic environmental authorities, but the carcass may remain on the beach over Easter.