abashiri subprefecture antsiferov island atlasov island ayan baydukov island blubber bolshoy shantar island broutona chastyye islands chetyre paltsa chirinkotan chirpoy chkalov island cold war ekarma feklistova island gennady nevelskoy geographic coordinate system hydrology ion island island iturup ivan moskvitin japan japanese language kamchatka krai kamchatka peninsula kamen-mukdykyn ketoy kharimkotan kommersant kunashir island kuril islands magadan magadan oblast makanrushi massachusetts matua island monbetsu nedorazumeniya island okhotsk onekotan operation ivy bells oremif pacific ocean palana paramushir raikoke rasshua russia russian-american company russian far east sakhalin sakhalin gulf sakhalin oblast salinity sea of japan shantar islands shiashkotan shumshu siberia simushir south america soviet navy spafaryev islands stepan makarov tretiy island united states urup ush island ushishir vassili poyarkov vitus bering whaling william robert broughton yam islands yuzhno-sakhalinsk zavyalov island