About the project

Tag My Fish is a project useful for anglers, ichthyologists, and ecologists. It presents, unites, and connects all fish species with all major body waters on Earth in one place—both in the context of sport fishing and in the context of ecology and the protection of waters and aquatic ecosystems.

The site and mobile app have two separate but closely related parts: the first is scientific-educational, showcasing all fish species and some of the most important waters; the second, which relies heavily on the first, is a social network.

By using the app or website, users can upload a photo of their catch or observation and tag the fish species, the body of water, and optionally, the fishing gear used.

If the fish species tag is incorrect—or if the user is simply unsure of what they've caught—the system will automatically re-tag the catch and assign the correct fish species as soon as possible.

The project also carries significant ecological value. By monitoring catches and observations, we can monitor ecosystem health. Ecologists can identify waters with rare and endangered species—such as tench and crucian carp—and provide additional protection when needed. The app can also help with early detection of invasive species, enabling preventive action to stop their spread.

History:

The website with fish species and waters was launched in the summer of 2021.
The social network (Tag my Fish 1.0) was officially launched on September 25, 2023.
The social intelligence modul, which can correct incorrectly tagged fish species without any administrator action, was officially launched on July 8, 2024.
Tag My Fish 2.0 was officially launched on May 5, 2025. This version introduced a neural network (AI) module that automatically corrects incorrectly tagged fish species. If the AI makes a mistake, anglers can use the undo button to revert to the original tag. When the AI is uncertain, it won't make changes automatically. Instead, it suggests a correction, which the user can accept with a single click.