隨著航運的發展，國際間隨船舶排水（壓艙水）而導入外來生物種之情形日漸嚴重，使得外來種所造成之生態或經濟衝擊越來越廣泛。本研究以臺中港為例，分析了臺中港民國85-97 年之進港船舶航運運輸資料，透過資料的分析，找出壓艙水的主要來源。結果顯示，船旗國部分是巴拿馬為最大的來源國；船舶前一個停靠港則以有害藻華事件頻傳的中國、日本、香港、韓國等亞洲國家為主，其中又以日本占了最大的比例；以「歐洲模式」估算臺中港民國93-96 年壓艙水排放總量約為2,144,276 噸。最後參考國際控管船舶壓艙水及沉澱物公約內G2指導方針，研擬出一套港區船舶壓艙水採樣的管理辦法。

The non-indigenous species (NIS) via ship’s ballast water in recent years has become an emerging problem around the world. We analyzed the shipping data of visited vessels in Port of Taichung from 1996 to 2008, and estimate the maximum ballast water discharge in the harbor. It was found that most of the ships visited Port of Taichung are registered under the flag of Panama and the last call of port were among the harmful algae bloom frequently reported country mainly from Asia region, especially Japan. The estimated ballast water discharge in Port of Taichung is
around two million tons. We also proposed a sampling procedure by referencing the IMO(International Maritime Organization) guideline.