Look carefully at the causes of the problem: the decline of fishing resources isn't simply a result of overfishing. In fact, the damage done to marine resources is more the result of the destruction of the entire ecological system.
究其原因，漁業資源的減少並不單單來自於「過漁」，事實上，整個生態系的破壞對海洋資源往往造成了更重大的衝擊。