Salmon farming affects the fatty acid composition and taste of wild saithe Pollachius virens L.

By T. Skog, K. Hylland, B. Torstensen, M. Berntssen. 2003

84 citations recorded by the source corpus.

There is an ongoing controversy on whether ¢sh farming aiects the quality of wild ¢sh in fjords. In northern Norway, local people prefer not to eat saithe, Pollachius virens L., from areas in the vicinity of ¢sh farms because they say the taste is inferior to saithe from other areas. To address this issue, saithe were collected in the vicinity of a salmon ¢sh farm in a fjord in northern Norway and in two reference areas: one site 6 km away from the nearest ¢sh farm in the same fjord, and the other in a fjord nearby with no ¢sh farms. The objective of this study was to clarify whether the physiology or taste of saithe near ¢sh farms diiers from saithe in areas with no or limited in£uence from ¢sh farms. The ¢sh collected near farms were larger than those from control sites of the same age and had been eating pellets. Analysis of fatty acid composition of the ¢llet indicated that ¢sh collected near the farms had fatty acid pro¢les that resembled that of pellets more than ¢sh from reference sites. The results suggest that there were individual diierences in the time spent near cages for saithe collected near the farm, and that saithe collected at the reference area in the same fjord had also been eating pellets, i.e. had visited at least one of the ¢sh farms in the fjord. In a sensory test, the test panel found that saithe from the fjord without ¢sh farms tasted better than saithe collected near the cages. The test panel found no clear diierences in taste between saithe collected near the ¢sh farm and saithe from the same fjord, but 6 km from the nearest ¢sh farm.

Subfields: Animal Science and Zoology, Aquatic Science, Immunology

View Paper: https://www.semanticscholar.org/paper/e2571b4550ab6254fa15d583d5e322711b4f8425

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Citations in the corpus

Incorporation of fish feed and growth of blue mussels (Mytilus edulis) in close proximity to salmon (Salmo salar) aquaculture: Implications for integrated multi-trophic aquaculture in Norwegian coastal waters (2012, background): “18:1 (n-9) and 18:2 (n-6) in fish feed in recent years (Dalsgaard et al., 2003; Narváez et al., 2008; Skog et al., 2003) which can be used as tracer fatty acids for the incorporation of salmon feed.”
Changes in fatty acid composition, atherogenic and thrombogenic health lipid indices and lipid stability of bogue (Boops boops Linnaeus, 1758) during storage on ice: Effect of fish farming activities (2015, background): “There are no available data on FA composition changes or lipid stability of farm-affected wild fish during storage on ice despite a distinct FA profile signature reported for these fish (increase of n-6 and decrease of n-3) that alters the nutritive value of the fish and taste (Arechavala-López et a”
Vertical variability of wild fish assemblages around sea-cage fish farms: implications for management (2005, background): “…of the environmental impacts of fish farms (e.g. Read & Fernandes 2003), partly because good information on their interactions with farms has only been available since 2002 (Dempster et al. 2002, Skog et al. 2003, Boyra et al. 2004, Vita et al. 2004, Felsing et al. 2005, Tuya et al. 2005).”
High connectivity of salmon farms revealed by aggregation, residence and repeated movements of wild fish among farms (2009, background): “…of salmon farms in coastal waters relies largely on ecological knowledge of nutrient impacts (Carroll et al. 2003), the effects of escaped salmon (Soto et al. 2001, Thorstad et al. 2008), and the role salmon farms play in modifying © Inter-Research 2009 · www.int-res.com*Email:…”
Impacts of marine and freshwater aquaculture on wildlife: a global meta-analysis (2018, unknown): “Reviews in Aquaculture (2019) 11, 1022–1044 © 2018 Wiley Publishing Asia Pty Ltd 1027 reported altered taste and other metrics of quality (Skog et al. 2003; Bogdanovi c et al. 2012).”
Attraction and repulsion of mobile wild organisms to finfish and shellfish aquaculture: a review (2018, background): “Feeding on aquafeeds has been shown experimentally to impact saithe skin and muscle colour, pH, fatty acid composition, and sensory parameters relative to wild-caught fish (Skog et al. 2003, Otterå et al. 2009).”