
Interpreting sonar images with a fishfinder, like the Lowrance HOOK series, takes practice, but here's how to get started: Fish appear as arches or fish symbols on the display. Larger arches or symbols usually indicate larger fish. Note the depth. Fish often gather near underwater structures, like drop-offs, vegetation, or ledges; these show as changes on your sonar. Adjust the sensitivity to refine the display. More sensitivity shows smaller fish, but also more clutter; find the right balance. Use the zoom function to focus on specific depths. For detailed instructions, consult your Lowrance HOOK series user manual, or Lowrance's online tutorials. Experiment with settings and observe fish appearances to improve your skills over time.


