2013
DOI: 10.1080/17451000.2013.810758
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A conservation plan for Atlantic salmon (Salmo salar) and anadromous brown trout (Salmo trutta) in a region with intensive industrial use of aquatic habitats, the Hardangerfjord, western Norway

Abstract: Extensive use of aquatic habitats, mainly for hydropower and aquaculture, has a negative impact on anadromous salmonid populations of the Hardangerfjord region, western Norway. High infection levels of salmon lice, and high proportions of escaped farmed salmon in spawning rivers, appear to violate the goals in the 'Strategy for an Environmentally Sustainable Aquaculture Industry' set by the Norwegian government. An overview of the anadromous populations in the fjord, their status and the major threats are pres… Show more

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Cited by 18 publications
(15 citation statements)
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“…This fjord system houses a large aquaculture industry (Fig. 1) that produced 80 000 t of salmon in 2014 (Skaala et al 2014). There is a high incidence of escaped farmed sal mon in the spawning population of these rivers.…”
Section: Capture Of Escaped Farmed Salmonmentioning
confidence: 99%
“…This fjord system houses a large aquaculture industry (Fig. 1) that produced 80 000 t of salmon in 2014 (Skaala et al 2014). There is a high incidence of escaped farmed sal mon in the spawning population of these rivers.…”
Section: Capture Of Escaped Farmed Salmonmentioning
confidence: 99%
“…Skilbrei and Jørgensen 2010;Chittenden et al 2011;Liu et al 2011;Solem et al 2013), but also to monitor parasitic infestations of salmon lice (Lepeophtheirus salmonis) (e.g. Barlaup et al 2013;Skaala et al 2014;Arechavala-Lopez et al 2016). However, many other fish species are regularly caught by traps, but they are scarcely reported in aforementioned studies.…”
Section: Introductionmentioning
confidence: 94%
“…One of the mechanisms that couples increased mortality in wild salmon populations with fish farming is the increased spread and production of the salmon louse, the parasitic copepod (Lepeophtheirus salmonis), which can infect and kill salmon smolt during migration (Jackson et al 2011;Gargan et al 2012). The Hardangerfjord is one of the fjords with the highest density of salmon farms in the world (Skaala et al 2014). In 2010 the total production of salmon was over 900,000 t. Jansen et al (2012) demonstrated that there was correlation between sea lice on individual salmon farms and local biomass density in the surrounding farms.…”
Section: Salmonmentioning
confidence: 99%
“…However, historically most of the larger river systems in the inner fjord also sustained a viable fishery of salmon and sea trout. In addition, there was an extensive marine fishery for salmon throughout the fjord, which is now banned (Skaala et al 2014). Catch statistics are available for some of the inner rivers, but most of these data are, with few exceptions, of poor quality due to inadequate reporting (Jensen et al 2004).…”
Section: Spawner Densities In the Hardangerfjordmentioning
confidence: 99%
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