The raising of oysters and planting of sugar cane came later. Throughout those years, however, development was mostly on a relatively small scale and wasn't yet mechanized, so that "its impact on the environment was relatively minor," says Kuo Chin-tung, professor of hydraulic and ocean engineering at National Cheng Kung University.
到了清朝、日據時代更不斷擴充，加上牡蠣養殖、種植甘蔗等，大多屬於小規模的開發、非機械化的施工，「對環境的影響輕微，」成功大學水利及海洋工程學系教授郭金棟指出。