鮎並女[ainame] fat greenling (Hexagrammos otakii)
落ち鮎[ochiayu] sweetfish going downstream to spawn
稚鮎[chiayu] young ayu
若鮎[wakaayu] young (healthy & energetic) sweetfish
鮎漁[ayuryou] fishing for ayu

鮎並科[ainameka] Hexagrammidae (family of marine fishes incorporating the greenlings)
鮎釣り[ayutsuri] ayu fishing
鮎掛け[ayukake] fourspine sculpin (Cottus kazika)
鮎擬[ayumodoki] kissing loach (Leptobotia curta)