Polar Fishing Gear specializes in designing and selling highly efficient trawl doors suitable for bottom, semi-pelagic and pelagic fishing.
Using 3-Dimensional aerodynamics computational simulation to design Polar trawl doors, reduced resistance has been confirmed against most competitors and it is accredited to maintaining excellent spreading force.
Polar’s semi-pelagic and pelagic trawl doors are also used to spread traditional bottom trawls rigged “off the seabed”. Experiments have shown 8 to 12% less fuel consumption and less wear and tear with the use of this equipment compared to use of traditional bottom doors. In addition, there is much less impact to the bottom as the trawl doors are rigged to work 10 to 20fm above the seabed.
“Off the seabed” fishing has high environmental status showing;
- Reduced impact to the seafloor as the trawl doors are guided to work above the seabed.
- Less fuel consumption due to less resistance of direct seafloor contact from the trawl doors.
- Less maintenance on the trawl doors and other ground gear as majority of it is guided above the seabed.
Polar’s latest invention, a “Remote Controllable Trawl Doors” are in trial process showing very promising results but the idea is to control the water flow through the trawl doors and guide them and the complete fishing gear to preferable position in the water for the most effective fishing results.
By moving the wings or part of the wings of the trawl door, the water flow can be controlled so the trawl doors can be guided to work with reduced spreading force, its maximum spreading force and also controlled closer to the surface or deeper.
This revolutionary idea can control the fishing gear in its preferable position to catch the fishing scols seen on the fish finding equipments in front of the fishing vessels.
“Remote Controllable Trawl Doors” will have great positive environmental impacts;
- Less fuel consumption as when no or little fish concentration are seen on the fish finding equipments in front of the fishing vessel, the doors can be controlled to increase the water flow through the doors. The doors will lose spreading force, the distance between them will be reduced and the complete fishing gear will have much less overall resistance.
- Greater catches as when high fish concentration are seen on the fish finding equipments in front of the fishing vessel, the doors are guided to spread more, the distance between them will be increased and the fishing gear will catch more fish.
- Greater catches as the doors can be controlled to preferable position in the sea where best fishing options are.
- Less maintenance as the trawl doors and the fishing gear can be guided to work as close to the seafloor as preferred.
- Less wasted time at fishing as the trawl doors can be controlled remotely from the fishing vessel compared to today’s situation where the trawl doors must be taken onboard the fishing vessel, unhook chains and shackles, reconnect to different positions and set the fishing gear back to the sea.