Cod-End Sounder

The Cod-End Sounder is installed in the cod-end of the trawl either on the top of the net or in the belly. This sounder confirms the fish are swimming into the cod end and helps the skipper estimate the volume of fish in the cod end. A unique feature of the sounder is its transducer which can look backwards and provide an echogram of the fish swimming past the sounder all the way into the cod-end.