Cheng Ming-hsiu further points out that the waters close to Kueishan Island have an immensely rich marine ecology. Both the Kuroshio Current (a.k.a.
鄭明修進一步指出，龜山島附近海域蘊藏豐富的海中生態寶藏，環島 2 至 3 浬海域有親潮與黑潮經過，吸引許多魚群在此聚集。