Sonar’s Revolution in Fishing

Echoes Beneath — The Rise of Fish Finders! "In the last 30 years,

fishing has been transformed by sonar technology. What began as simple depth finders in

the 1990s has evolved into advanced fish finders that map entire underwater worlds.

Modern devices use side‑scan and down‑scan imaging to reveal rocks, vegetation,

and even the outlines of fish schools. Some models are so precise they can show the skeletal

shape of a single fish. Anglers now navigate lakes and oceans with digital maps,

GPS integration, and live sonar that updates in real time. This revolution

changed not only sport fishing but also conservation, as scientists use the same tools to