英文關鍵字
acheilognathinae
fauna
fish
fishery
focus
freshwater
gobio
gudgeon
juvenile
rhodeus
river
selective
small
swims
temperate
typical
water
european
wild
environment
cyprinidae
actinopterygii
adult
algae
amarus
animal
aqua
close
aquarium
clean
cypriniformes
bream
young
bait
brown
closeup
bitterling
aquatic
biotope
clear