The United States government maintains two river flow gages on the Aroostook. The first is located near Masardis, Maine where the rivershed is , the second at Washburn, Maine where the rivershed is . By Fort Fairfield, Maine the rivershed is . At Masardis, the maximum recorded flow is 21,100 cubic feet per second and the minimum per second. At Washburn, the maximum recorded flow is per second and the minimum per second. Annual maximum flows occur during the spring snow melt and minimums in the fall. The highest flood levels at both gages occurred during ice-dam induced floods, which occur relatively often on this river. Such flooding occurred in March and April 1999, April and May 2003, and April 2004.
The river has a small run of Atlantic Salmon. From 1998 to 2001 the number of adults returning to the river ranged from seventeen to thirty.
Search fails to find trace of woman Wardens, state police scour Aroostook River for Tela Hart of Presque Isle
Nov 19, 2005; PRESQUE ISLE - Snowflakes tumbled through the 26-degree air Friday as wardens and state police used an underwater camera to scour...