Fish that has been preserved or seasoned with salt. Common in Japanese cuisine.
祖母は自家製の塩魚を送ってくれた。
My grandmother sent me homemade salted fish.
この地域では塩魚を使った料理が多い。
In this region, there are many dishes that use salted fish.
Compound of 塩 (shio, 'salt') and 魚 (sakana, 'fish'). The reading しおざかな follows standard rendaku voicing.