The Chinese name "Wu-Kuo" for Taiwan tilapia was created from the surnames of Wu Chen-hui and Kuo Chi-chang, who introduced the fish into Taiwan. Twenty years after 1946, tilapia had become an integral part of Taiwanese life, with many people having gotten wealthy by raising tilapia. Kuo Chi-chang, though, was thwarted in his aspirations, and until his death in 2000 lived a life plagued by regret.
「吳郭」之名，來自引進吳郭魚的吳振輝和郭啟彰兩人的姓氏，距離一九四六年二十年後，吳郭魚早已深入台灣民間，飼養吳郭魚而發財的大有人在，郭啟彰卻鬱鬱不得志，一直到西元二○○○年過世前，一直活在遺憾當中。