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.

Subscribe to real-time telemetry detection alerts (hourly) and summaries (daily, weekly) using the USGS FishTracks Real-Time Receiver Subscription Form (existing subscriptions can be modified or canceled using the form).

Current Conditions

Station Name Date/Time Fish Tags During the Previous 24 Hours
CHICAGO SANITARY AND SHIP CANAL NR LEMONT, IL  2024-07-15 23:55:00 CST  A69-1602-65025
CHICAGO SANITARY AND SHIP CANAL BELOW FISH BARRIER AT ROMEOVILLE, IL  2024-07-15 23:25:00 CST  A69-9001-8692, A69-9001-64274, A69-9001-64298, A69-9001-64408, A69-9001-64296, A69-9001-8699, A69-1601-62592, A69-9001-64307, A69-1602-65023, A69-9001-64400, A69-9001-64293
DES PLAINES RIVER ABOVE BRANDON ROAD LOCK AND DAM AT ROCKDALE, IL  2024-07-15 23:00:00 CST  A69-9001-64232, A69-9001-64228, A69-9001-64225, A69-9001-64290, A69-9001-64253, A69-9001-64234, A69-9001-64314, A69-9001-64235, A69-9001-64231
ILLINOIS RIVER ABOVE DRESDEN ISLAND DAM NEAR MINOOKA, IL  2024-07-15 23:00:00 CST  A69-9001-64434, A69-9001-8686, A69-9001-64383, A69-9001-64327, A69-9001-12694, A69-9001-64265, A69-9001-64395, A69-9001-64386, A69-9001-64389, A69-9001-64385
HANSON GRAVEL WEST PIT AT CULVERT NR MORRIS, IL  2024-07-15 23:05:00 CST  A69-1604-29093, A69-1604-29163, A69-1604-29095, A69-1604-29109, A69-1602-65032, A69-1601-63296, A69-1604-29064, A69-1604-29088
HANSON GRAVEL EAST PIT_01 NR MORRIS, IL  No data  No data within one week of 2024-07-16
ILLINOIS RIVER BELOW STARVED ROCK LOCK AND DAM AT UTICA, IL  Temporarily removed  Temporarily removed
MISSISSIPPI R AT CREDIT ISLAND NEAR DAVENPORT, IA  2024-07-15 23:55:00 CST  A69-9001-12513, A69-1602-55512, A69-9001-12510, A69-1604-52510, A69-9001-12435, A69-9001-58579, A69-9001-12532, A69-1604-34672, A69-9001-58537
BIG TIMBER BACKWATER (P17) NEAR PORT LOUISA, IA  2024-07-15 23:55:00 CST  A69-9001-58683, A69-9001-58570, A69-9001-20694, A69-9001-17469, A69-9001-58525, A69-9001-58679, A69-9001-58621, A69-1604-23494, A69-9001-60112, A69-9001-17480, A69-9001-6523, A69-1602-18686, A69-9001-58642, A69-9001-58486, A69-1602-55490, A69-1604-23507, A69-9001-58645, A69-9001-58650
CLEVELAND SLOUGH (P17) NEAR PORT LOUISA, IA  2024-07-15 23:55:00 CST  A69-9001-60105, A69-9001-58635, A69-9001-60113, A69-9001-58528, A69-9002-9331, A69-9001-58625, A69-9001-58607, A69-1604-29422
ELIZA CREEK AT BOSTON BAY (P18) AT NEW BOSTON, IL  2024-07-15 22:55:00 CST  A69-9001-6535, A69-1604-23506, A69-9001-58713, A69-1602-49731, A69-1602-49730, A69-1602-49659, A69-1602-49656, A69-9001-48393, A69-9001-58715, A69-9001-58501, A69-9001-58506, A69-9001-60426, A69-9001-58502, A69-1602-14545, A69-9001-58555, A69-9001-58485, A69-1602-53075, A69-9001-58671, A69-9001-12687, A69-9001-12657, A69-9001-58705, A69-9001-58701, A69-1602-49654, A69-9001-58487, A69-9001-12672, A69-1602-49734, A69-9001-58497, A69-9001-58483, A69-9001-58641, A69-1602-49693, A69-9001-58635, A69-9001-58546
CARTHAGE LAKE NEAR BURLINGTON, IA  2024-07-15 23:55:00 CST  A69-1602-49722, A69-9001-20653, A69-1601-62107, A69-9001-20684, A69-1601-62168, A69-1601-62093, A69-1601-62086, A69-1601-62105, A69-1601-62089, A69-1601-62179, A69-1601-62178, A69-9001-12692, A69-1601-62171, A69-9001-56918
SANDUSKY RIVER AT BRADYS ISLAND AT FREMONT, OH  2024-07-16 00:00:00 CST  A69-1601-62054, A69-1601-62081, A69-1601-63731, A69-1601-63705, A69-1601-63214, A69-1601-62256, A69-1601-63732, A69-1601-63154, A69-1601-62079, A69-1601-62050, A69-1601-62052, A69-1601-63708, A69-1601-62040, A69-1604-30401, A69-1601-62061, A69-1601-63213, A69-1604-30394
SANDUSKY RIVER AT OTTAWA SHOOTING CLUB NR WIGHTMANS GROVE, OH  2024-07-16 00:05:00 EST  A69-1601-62474, A69-1601-62131, A69-1601-62482, A69-1601-62524, A69-1601-62540
MAUMEE RIVER (RIGHT BANK) AT PERRYSBURG, OH  2024-07-16 01:05:00 EST  No detections
MAUMEE BAY NR TOLEDO, OH  Discontinued  Discontinued

Time zone conversions: CST = UTC - 6; CDT = UTC - 5; EST = UTC - 5; EDT = UTC - 4
Page Last Modified: 2024-07-16 01:30 CDT