Taiwan is surrounded by waters. The eastern coast of the island is rocky, with a sudden drop into the ocean. Its offshore waters form pathways for many species of migratory fish traveling both from the south and the north. The west coast has a gradual, inclined shelf.
台灣四面環海，東面岸峻水深，為南北迴游魚類必經之路；西部陸棚和緩平坦，海底生物豐富，利於魚類棲息繁殖，具有發展漁業的優良環境。