Fish finder

A fishfinder or sounder (Australia) is a sonar instrument used on boats to identify aquatic animals, underwater topography and other objects by detecting reflected pulses of sound energy, usually during fishing activities. A modern fishfinder displays measurements of reflected sound on a graphical display, allowing an operator to interpret information to locate schools of fish, underwater debris and snags, and the bottom of a body of water. Fishfinder instruments are used both by recreational and commercial fishermen, as well as by marine biologists.

Modern electronics allow a high degree of integration between the fishfinder system, marine radar, compass and GPS navigation systems.

Back to Gear & Tackle →

Source: Wikipedia · Image: Wikimedia Commons · Public domain