eSonar has developed a monitoring system for the purse seine industry. Successful sea-trials have led to sales in Europe and this new product is generating a lot of interest amongst purse seine users. Omni-directional sensors are mounted on the foot gear of a purse seine, which then transmit depth, height and temperature data to an omni-directional hydrophone mounted on the vessel. Seinevue© data is displayed on a GUI so the user can see real-time depth, height and temperature information as well as the rate of descent for each sensor. The GUI is in a graphical format, providing straightforward data interpretation.

Seinevue© specifications:
  • Omni-directional sensor providing Depth and Temperature information
  • Depth rating: 1000 meters
  • Telemetry range: 1000 meters
  • Frequency: Nominal 28 kHz, omni-directional
  • Weight in air: 6 kg
  • Temperature Range: -5 to 30 degrees Celsius
  • Depth Range: 0 - 1000 meters
  • Temperature Accuracy: +/- 0.1 degree Celsius
  • Depth Accuracy: +/- 1% Full Scale
  • Battery Life: Up to 10 days (depending on update rate)