The Alaska Department of Fish and Game’s Salmon Ocean Ecology Program is requesting quotation for a trawl gear monitoring system (i.e., a 3rd wire system) to monitor the dimensions (vertical and horizontal opening spread) of a research trawl net measuring 604 feet (184 meters) in length, with an opening approximately 79 feet deep by 98 feet wide (24 x 30 meters). The most critical readings are the vertical and horizontal spread during trawl deployment as these are used in fish catch per unit of effort calculations. All equipment will be aboard an 85-foot (26-meter) trawl vessel. 1 each: 3 rd wire system that can meet the demands in the description – Includes trawl sonar sensor (attaches to the trawl headrope), onboard monitoring receiver device, and any related hardware/software. Marine-grade transducer cable to connect headrope sensor to the monitoring receiver. Sufficient cable must be provided to allow deployments up to 200 fathoms (366 meters).