英文關鍵字
animal
asia
asian
blueback
color
cycle
dying
east
ecology
ecosystem
far
fish
fishery
fishing
habitat
head
kamchatka
kokanee
lake
life
migrate
migration
motion
mouth
natural
nature
nerka
northern
ocean
oncorhynchus
pacific
peninsula
people
primarily
red
river
russia
russian
salmon
salmonidae
salmoniformes
shallow
slow
snout
sockeye
spawn
spawning
splashing
spray
swimming
teeth
they
tourism
travel
underwater
water
waves
wild
wildlife