TrawlFish NetSounder

Provides an overall picture of the trawl: water depth from the surface to the sounder, distance from headrope to seabed, distance between the trawl doors and water temperature, positioned slightly aft of the headrope. The TrawlFish NetSounder should be attached with the "forward" Uplink Transducer pointing in the direction of trawl towards the vessel so that the aft looking Altimeter Transducer is pointing aft towards the cod-end and the EchoSounder Transducer looking down into the trawl towards the bottom to provide an echogram of fish in the trawl. The TrawlFish NetSounder should be attached to the top of the trawl behind the headrope, approximately one third of the way between the headrope and the cod-end.