魚類學名詞

名詞 定義 air bladder A tough-walled gas-filled sac lying in the upper part of the body cavity of many bony fishes just beneath the vertebral column; its principal function is to offset the weight of heavier tissue such as bone. In some fishes used for sound production or respiration. Connected to the oesophagus in primitive fishes (physoclists). 氣鰾 一具有強硬外壁的氣囊，在椎骨的正下方體腔的上半部；它的主要功能在彌補組織的重量，例如硬骨。在一些魚類用以發聲或呼吸。在原始的魚類連接食道。