Says Chou, "We've conducted 70 surveys per year in recent years and taken a total of over 40,000 photos, which we use to identify individual dolphins. On that basis, we estimate a population of 84 to 86 humpback dolphins on the west coast."
「我們根據最近每年 70 趟次調查、累積四萬多張照片，藉『辨識法』估計出目前西岸白海豚的數量約 84 ∼ 86 隻。」