Acronym NA
Category
Fisheries
Title Captured based aquaculture around fish farms: Developing a small scale fjord fishery 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 Pål Arne Bjørn Coordinator email paal-arne.bjorn@nofima.no
Coordinator institution
NOFIMA - Norwegian Institute of Food, Fisheries and Aquaculture Research (Norway)
Institutions involved
NA
Start year 2007 End year 2008 Funding (€) € 193,200 Website https://www.fhf.no/prosjekter/prosjektbasen/343022/ Summary "When artificial structures are concentrated in large numbers in specific areas of the coastline, their synergistic effects may generate an “Artificially Created Ecosystem” (ACE). These structures will have diverse ecological effects on coastal ecosystems, maybe to a greater extent than is currently assumed.
Marine fish farms are perhaps the most important ACE's in Norwegian coastal waters, and Norway has currently more than 1150 coastal farming sites. Research into the demographic effects of fish farming upon wild fish has however received little attention, but farms may have a variety of ecological effects on associated wild fish. Of particular controversy at the moment is their likely capability of attracting large amounts of wild fish, and that feeding on pellets and faeces from the farm, reduces the quality of the raw material. On the other hand, if wild fish are attracted to fish farms, and the quality reductions are limited or can be improved, this behavior may provide an ideal opportunity for cost-effective capture of fish, either beside farms or in specially constructed traps at farms.
Objectives:
To assess quality of wild fish aggregating around fish farm in Norway, and to develop methods and equipment for live capture, storage and quality improvement in such a way that a sustainable small-scale fishing can be developed in areas of intensive aquaculture production.
Subgoals:
• To describe quality of wild fish aggregating around fish farms and in control areas in a Norwegian wide context.
• To develop methods for live capture and recovery of fish captured around fish farms.
• To study if short time storage without food can improve quality of fish captured around fish farms.
Preliminary results from fish caught under aquaculture facilities and in control areas along the entire Norwegian coast indicate that the quality differences are smaller than previously claimed. Only minor differences in taste and sensory fillet quality were found between pollock and cod in aquaculture-intensive areas and control areas in Øksfjord in Finnmark and Hitra in Trøndelag. However, somewhat larger differences were found in Ryfylke, and the fish caught furthest away from aquaculture facilities had somewhat better sensory quality and taste.
To capture the fish around aquaculture facilities alive, two fishing methods have been developed. One is a trap primarily designed to catch cod. The other is a large trap to catch pollock. The trap has proven to work well in both the first (spring 2008) and second (fall 2008) trial fishing periods, capturing large cod, pollock, and halibut with minimal effort and very good quality. The large trap has not proven effective at the test site in Ryfylke, primarily because the pollock there are too deep to be caught and will require further testing at multiple locations. However, the potential to develop small-scale fishing in aquaculture-intensive areas for high-quality live fish using traps is definitely present and should be further tested, according to the research group."
Keywords
Fish quality;
Halibut;
Open sea aquaculture;
Fish;
Traps;
Saithe;
Cage aquaculture;
Capture-based aquaculture;
Wild animals;
Small scale fisheries;
Integrated management;
Cod;
Gear technology;
Flatfish;
Fishing technology;
Marine Region
76
Not associated to marine areas
0
Marine Region Map
