What is Fishtagged?

Potomac River anglers have tagged over 4700 smallmouth bass so we may better understand growth rates, seasonal migration, range, preferred habitat, predation, and population density in the Potomac River basin.

How are you tagging?

We use color-coded T Tags, which include a 4-digit number unique to that fish. They are 3 inches long and come in various colors. The tag is inserted behind the dorsal fin so it does not adversely affect their day-to-day movements.

Do I receive a reward for catching a tagged fish?

Report your catch with all the information required, including your name and contact information, and you will be entered into a weekly drawing for a gift card.

May I participate in the tagging of fish on behalf of Fishtagged?

Currently, tagging is an internal process reserved for a specialized team of anglers on the Fishtagged team. However, we would greatly appreciate your help by reporting any tagged fish you catch.

How do I read the tag?

Algae quickly grows on a tag. You may need to gently scrape the tag to read it. The tag should stay in place.

How may I track my catch?

By submitting all the information in the form, we are able to better monitor the population, growth rate, and migratory routes. By correlating river hydrological (and environmental) data, we are also able to better understand conditions that dictate movement and feeding vs protective modes. If you choose to share all the info requested below, we will send you a photograph of the fish and details from when it was originally tagged.

How do I submit information on my recaptured fish?

Use this form to submit tagged data or text the info to 240-812-9799.

•   Photo of tagged fish   (required)

•   Tag number   (required)

•   Tag color   (not required)

•   Date and time recaptured   (required)

•   Location   (not required)

•   Contact info   (not required)

• Additional notes (not required)

What if I have tag data from a fish caught in previous years?

Please submit the data. This is one of the most important elements of archiving data.

What have we learned so far?

Over 4700 fish have been tagged so far, and our recapture rate is 7.9%. Many have been recaptured a third and fourth time.

• Some bass have traveled over 40 river miles in less than a season. Enter tags 798 or 756 to see examples of how far they traveled.

• Growth rates for 10-16 inch fish are 1-2 inches per year.

• Below are sample graphs from the information we have gathered so far. The graphs provide potential insights correlating the highest numbers of captures during specific types of river conditions such as level and temperature.