Acronym NA
Category
Fisheries
Title Lofotteina: Uttesting for anvendelse i kystfiske - Lofotteina: Testing for use in coastal fishing 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 Odd-Børre Humborstad Coordinator email odd-boerre.humborstad@imr.no
Coordinator institution
IMR - Institute of Marine Research (Norway)
Institutions involved
NOFIMA - Norwegian Institute of Food, Fisheries and Aquaculture Research (Norway) ,
Start year 2012 End year 2013 Funding (€) € 214,364 Website https://www.fhf.no/prosjekter/prosjektbasen/900782/ Summary Fishing with pots for cod has a limited scope in Norway. A pot (hereinafter referred to as "Lofotteina") has been developed for catching near fish farms by breeder and inventor Ole Vegar Mosseng. Lofotteina is rigid and constructed of expanded metal and aluminum pipes. The dimensions are large with a volume of approx. 22 m3. In the FHF project “Catch and intermediate storage of wild fish at fish farms” ( FHF-900501 ), this pot has been tested at a fish farm in Lofoten with very convincing results for both saithe and cod (Kasparas 2010). The largest catch during experiments in which the Institute of Marine Research participated was 687 saithe (approx. 1.3 tonnes) in a pot of 2 days standing time. The inventor has previously also caught large catches of more than 500 kg of cod in a pot. Farming facilities attract fish, and behavior and catch efficiency cannot be easily transferred to areas that are not affected by farming. There are many factors that distinguish a fish farm from traditional fishing grounds, such as issues related to handling, stability and not least fishing behavior. There is a desire to escalate research on this type of pot with a view to commercial use in coastal fishing. An increased interest is now seen in the combination of king crab and cod fishing in Varanger. Today, more than 450 smaller boats participate in king crab fishing on the Finnmark coast and therefore have equipment for handling pots and often a system for live storage of catch. Fishing for cod in king crab areas places special demands on pot design. Lofotteina will attract crabs that will easily enter the lower chamber, but due to the inner calf design, it is uncertain whether it will be able to ascend into the upper chamber as cod does. In this way, it is conceivable that both species can be fished at the same time, but kept separate in the pot. Lofotteina has been tested in areas unaffected by farming and partly in areas with king crabs. Lofotteina caught the best of four types of pots that were investigated, but the catch rates were too small to be commercially interesting. However, catch rates were low for all pot types compared to previous trials. Lofotteina should therefore be tested at other times of the year, and this is planned to be carried out in a follow-up in March 2013. This is happening in connection with an extension of FHF project 900702: Comparison of two-chamber stones and Nefoundland stones. A lot of fish migrated in and out of Lofotteina, and alternative calf design should be tested. Lofotteina caught little crab, and with the bottom of the pot, the crab was down, while fish were up. This result is promising in terms of the development of species-selective pots. In its original form, Lofotteina is too large and heavy to be operated on smaller coastal vessels (<50 feet), and it is recommended from fishing teams to make smaller versions for testing. Construction in plastic offers several advantages in terms of handling and production cost, and should also be considered. The catches were high and to some extent commercially interesting near fish farms. From a fishing point of view, there is great interest in Lofotteina, but before documentation is available on fishability in areas with a high availability of fish, the potential is greatest around fish farms. There is also great interest in testing Lofoten around wrecks that function as artificial reefs in the North Sea.
Keywords
Gear technology;
Crab;
Pots;
Shellfish;
Crustacean;
Fish;
Cod;
Fishing technology;
Marine Region
76
Not associated to marine areas
0
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