Will landslides or flooding result? In the same way, acquaculture may bring the public tasty seafood, but if the underground water withdrawn in the process leads to land subsidence and destroys the seashore, then those oysters and clams are pretty costly.
同樣的，水產養殖可帶來豐美的食物，為農民帶來財富；但抽取地下水養殖，造成地層下陷；海水養殖，則破壞海岸景觀。這樣一算，那些九孔、蚵仔就很貴了。