Acronym NA
Category
Fisheries
Title Hovedprosjekt: Utvikling av ressurs- og miljøvennlig notteknologi - Main project: Development of resource and environmentally friendly net technology Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Bjørnar Isaksen Coordinator email bjoernar.isaksen@imr.no
Coordinator institution
IMR - Institute of Marine Research (Norway)
Institutions involved
NA
Start year 2010 End year 2014 Funding (€) € 1,331,883 Website https://www.fhf.no/prosjekter/prosjektbasen/900514/ Summary The main purpose of this project has been to develop technology and methods that reduce the extent of unintentional mortality after penetration and release in the seine fisheries for mackerel ( Scomber scombrus ) and herring ( Clupea harengus ). An important goal has been that the R&D work should be concentrated on the development of equipment and methods that could help maintain a rational seine fishery, and at the same time meet the criteria in a future management regime for the seine fisheries. During the work on methods for sampling from nets, various fixed devices were initially tried in the net ("false kiser" and nets in "dinghy ropes"), but this did not give good results. However, a sampling jet has been developed which is fired into the net with a reworked line thrower, and which is towed back to the vessel through the net by means of a small power block. This sampling beam has been tested in several trials and has given very promising results. It is now ready for further testing in the seine fleet. Various attempts have also been made with a net camera, both as a tool for the development of gear technology and for the identification of catches. However, there is still a long way to go before this can become a robust and useful aid for the fleet. During the work with release methodology, special attention has been paid to changes in the construction and rigging of the net chest for easier and more gentle release. The important thing is that you can quickly create a discharge opening that is large enough for fish to swim almost undisturbed out of the net in need of catch regulation, and which also makes it easy to close the opening when the desired amount has been released. The work in the project has shown that with minor adjustments of components in the note's 'drought' and chest / horn area, it will be possible to achieve this. The methodology is by far the same as that used by the smallest coastal seine fleet during the locking of live fish. This horn system seems to have the potential to be further developed into a gentle and resource-friendly release alternative that should be able to be approved by the authorities. The cost of adapting a groove to such a horn system will be small. The largest cost will most likely be associated with the possible need for an extra small winch ("ear calf winch"). Further work on standardization and implementation of this system is being planned.
Keywords
Environmental impact;
Engineering;
Vessel technology;
Mackerel;
Gear technology;
Herring;
Fishing technology;
Fishing mortality;
Fish;
Purse seine;
Marine Region
41
Norwegian Sea (27.IIa)
13
Northern North Sea (27.IVa)
14
Skagerrak, Kattegat (27.IIIa)
42
Barents Sea (27.I)
4
Marine Region Map
