Fish Telemetry

To monitor fish movement in selected rivers, the U.S. Geological Survey (USGS) has installed near real-time receivers for fish tags. These receivers detect the presence of acoustic tags that have been surgically implanted into a variety of fish species. The near real-time data are recorded when detected, stored onsite, and typically retrieved by USGS offices once per hour. The tag detection data can provide information about how far fish are moving in a river system, changes in fish population distribution, and, when viewed with flow and water temperature data, how river conditions influence fish movement. USGS water flow and water temperature data are available at USGS Water Data for the Nation.

Disclaimer: USGS data on this page have not received Director's approval and as such are provisional and subject to revision. The data are released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from their use.

Current Conditions

Station Name Date/Time Fish Tags During the Previous 24 Hours
CHICAGO SANITARY AND SHIP CANAL NR LEMONT, IL  No data  No data within one week of 2022-09-27
CHICAGO SANITARY AND SHIP CANAL BELOW FISH BARRIER AT ROMEOVILLE, IL  2022-09-27 07:25:00 CST  A69-9001-8692, A69-1602-65023, A69-9001-8699, A69-9001-64293, A69-9001-64298, A69-9001-64307, A69-9001-64296, A69-9001-64274, A69-9001-64277, A69-9001-64325, A69-9001-64222, A69-9001-64321, A69-9001-64318, A69-9001-64322, A69-9001-64280, A69-9001-64326, A69-9001-64219, A69-9001-64297, A69-1605-5157
DES PLAINES RIVER ABOVE BRANDON ROAD LOCK AND DAM AT ROCKDALE, IL  2022-09-27 08:00:00 CST  A69-9001-64311, A69-9001-64235, A69-9001-64283, A69-9001-64228, A69-9001-64290, A69-9001-64233, A69-9001-64231, A69-1602-65034, A69-9001-64227, A69-9001-64226, A69-9001-64253
DES PLAINES RIVER BELOW BRANDON ROAD LOCK AND DAM AT ROCKDALE, IL  2022-09-27 08:15:00 CST  A69-9001-17348, A69-1602-65024
ILLINOIS RIVER ABOVE DRESDEN ISLAND DAM NEAR MINOOKA, IL  Temporarily removed  Temporarily removed
HANSON GRAVEL WEST PIT AT CULVERT NR MORRIS, IL  2022-09-27 08:05:00 CST  No detections
HANSON GRAVEL EAST PIT_01 NR MORRIS, IL  2022-09-24 01:05:00 CST  Date/Time more than 24 hours old, fish tags not determined
ILLINOIS RIVER BELOW STARVED ROCK LOCK AND DAM AT UTICA, IL  Temporarily removed  Temporarily removed
MISSISSIPPI R AT CREDIT ISLAND NEAR DAVENPORT, IA  2022-09-27 09:00:00 CDT  A69-9001-12532, A69-1602-55585, A69-1602-55665, A69-1602-55512, A69-1602-55657, A69-1602-55615
BIG TIMBER BACKWATER (P17) NEAR PORT LOUISA, IA  2022-09-27 09:00:00 CDT  A69-9001-20694
CLEVELAND SLOUGH (P17) NEAR PORT LOUISA, IA  2022-09-27 08:55:00 CDT  A69-9001-58632, A69-9001-58625
ELIZA CREEK AT BOSTON BAY (P18) AT NEW BOSTON, IL  2022-09-27 08:55:00 CDT  No detections
SANDUSKY RIVER AT BRADYS ISLAND AT FREMONT, OH  2022-09-27 08:05:00 CST  A69-1602-25382, A69-1601-63158, A69-1604-30422, A69-1601-62050, A69-1602-23240, A69-1601-62257, A69-1601-63154, A69-1601-63590, A69-1601-63077, A69-1601-62014, A69-1601-63150, A69-1601-63135, A69-1601-63139, A69-1601-63596, A69-1604-30401, A69-1601-63204, A69-1601-63208, A69-1602-23271, A69-1602-25327, A69-1602-25351, A69-1604-32719, A69-1602-23266
SANDUSKY RIVER AT OTTAWA SHOOTING CLUB NR WIGHTMANS GROVE, OH  2022-09-27 08:00:00 EST  A69-1601-62125, A69-1601-62142, A69-1601-62095, A69-1604-32718, A69-1601-52839, A69-1601-10838, A69-9001-9867, A69-9001-9896
MAUMEE RIVER (RIGHT BANK) AT PERRYSBURG, OH  2022-09-27 09:00:00 EST  A69-1602-1367, A69-1602-4331, A69-1602-43575, A69-1601-9110, A69-1602-19422, A69-1602-45167, A69-1602-46564, A69-1602-18416, A69-1601-2767, A69-1602-14419, A69-1602-27672, A69-1602-1534, A69-1601-50691
MAUMEE BAY NR TOLEDO, OH  2022-09-22 04:00:00 CST  Date/Time more than 24 hours old, fish tags not determined

time zone conversions: CST = UTC - 6; CDT = UTC - 5; EST = UTC - 5; EDT = UTC - 4

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Page Last Modified: 2022-09-27 09:30 CDT