Cantonese cuisine and other coastal Chinese cuisines are known for fresh seafood, exemplified by how the word for seafood 海鮮 joins ocean 海 and fresh 鮮 is fresh, so seafood is ocean fresh.
And 鮮, which also by itself means seafood, consists of left and right radicals) 魚 and 羊 which mean fish and fresh, respectively.
Similar Words
海 is also part of 海菜 (ocean vegetable, i.e. seaweed).
鮮 is also part of 新鮮 (new fresh, more commonly used as a standalone word for fresh).