During 1999 to 2004, the monthly average density of Norway rat, the major species, in Taizhou urban was 1.00 to 2.33 precent by powder mark, 0.13 to 0.85 precent by mouse jam and 0.28 to 1.33 precent by bait-stealing method.

• 台州城区以褐家鼠为优势鼠种；1999~2004年月平均鼠密度粉迹法为1.；00%25~2