Caddo Lake Institute

Paddlefish Tracking

Tracking Map / List of Adopted Fish / Paddlefish Project Page / Meet the Paddlefish

Follow the paddlefish! Forty-seven American paddlefish, raised at the Tishomingo National Fish Hatchery in Oklahoma, were released into the Caddo Lake watershed on March 5th, 2014 as part of a multi-year experiment.  You can follow the movements of some of these paddlefish on an interactive tracking map that shows the fish locations. 

The fish were approximately 18 months old and 2-3 feet in length when released.  Each sports a surgically implanted radio transmitter with a unique signal that enables it to be “tracked.” The tracking data is recovered from three receivers and is posted several times a month on the tracking map.  Observations of the fish by boat are also included.  The tracking map was created by the U.S. Geological Survey’s National Wetlands Research Center in Lafayette, Louisiana.

To see the tracking map, you can click the map below or here. Things to know before looking at the map:

  • The map opens with five popup menus to assist you in using the map. You can hide and unhide them by clicking on the Help bar in the bottom right of the screen or on the individual menus.

tracking map

  • Observations noted on the tracking map for each fish come from either stationary radio signal receivers or from observations made during searches by boat. 
  • Location data uploaded to the tracking map are not real time. Data is captured as fish move within range of one of the three receivers or when located by boat.  The data are then evaluated by US Fish and Wildlife Service staff before being uploaded to the tracking map.
  • Recorded locations can only be viewed one fish at a time.
  • Trouble with the website? Contact CLI at 512-482-9345 or

The Adopted Fish
Schools and others have "adopted" fish, naming them and using this tracking map and other information on CLI's website for education and other purposes.   As discussed on the project page, this experiment is part of a larger effort to restore healthy freshwater flows to the Caddo Lake Watershed.  The paddlefish experiment provides one example of why that restoration effort is important.  The Collins Academy is providing additional information to the schools that have adopted fish.

The adopted fish are:
Andre – Westlake High School AP Environmental Science classes), Austin ISD, TX
Bobcat Swag – Hallsville Intermediate School (grade 5 GT class), Hallsville ISD, TX
Boudreaux – The Nature Conservancy, Louisiana
Broadnose – Broadway Elementary School (grades 2-3), Gladewater ISD, TX
Bubbles – Sam Houston Middle School, Marshall ISD, TX
Caddo Lake Outlaw – North Hopkins Middle School, Suphur Springs, TX
Calypso – Jefferson High School (grade 9-12 Journalism classes), Jefferson ISD, TX
Canoe – Avinger ISD 7th and 9th Grades , Avinger, TX
Don the Fish – Gay Avenue Elementary School (grades K-1), Gladewater ISD, TX
Flat Billy – J.K. Hileman Elementary School, Queen City ISD, TX
Flo – The Nature Conservancy, Texas
Goldie – Avenger ISD 2nd Grade, Avinger, TX
Griselda – Galindo Elementary School, Austin ISD, TX
Jaws – Harleton Elementary School, Harleton, TX
Jess – Jefferson Elementary School, Jefferson ISD, TX
JJHS Caddo Rover - Jefferson Junior High School (grades 5-8 GT classes), Jefferson ISD, TX
Marty – Hughes Springs Elementary School (grades 1-5 GT classes), Hughes Springs ISD, TX
Mo-jo-Jo-jo – Edgewood ISD, TX
Neches – Neches River Stream Team, East Texas
Nettie - Northeast Texas Municipal Water District
Paddy – Jefferson Primary School, Jefferson ISD, TX
Pebbles – Karnack Junior High School (grades 6-8 Science classes), Karnack ISD, TX
Perry – Karnack High School (grade 12 Environmental Science class), Karnack ISD, TX
Polly Sprinkles – Weldon Intermediate School (grades 4-5), Gladewater ISD, TX
Quad X – North Hopkins High School, Sulphur Springs, TX
Troy – Avinger ISD 5th Grade, Avinger, TX

You can help extend and improve this experiment and allow more schools and other groups to use the experiment for educational purposes by sponsoring a fish or equipment or otherwise contributing to the project on our Donate page. Or email us at  for more information.

CLI's Partners
Partners in this experiment include The Nature Conservancy, U.S. Fish and Wildlife Service, U.S. Army Corps of Engineers, U.S.G.S. National Wetlands Research Center, Texas Parks and Wildlife Department, and the Northeast Texas Municipal Water District.

Many other organizations have assisted in the larger environmental flow project.

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