Viser treff 1-20 av 25
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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
(Journal article; Peer reviewed, 2013-10-15)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 ... -
Changes in the relationship between sea temperature and recruitment of cod, haddock and herring in the Barents Sea
(Journal article; Peer reviewed, 2013-06-14)Cod, haddock and herring in the Barents Sea have strongly variable recruitment. For these three stocks, earlier studies have suggested a high correlation between their recruitment and a positive relationship between high ... -
Diet composition and biomass consumption of harbour seals in Telemark and Aust-Agder, Norwegian Skagerrak
(Peer reviewed; Journal article, 2020)To explore ecosystem dynamics and functions it is vital to obtain knowledge on predator–prey relations. Harbour seals are piscivorous predators that can come into conflict with fisheries. Recently, as the Skagerrak and ... -
Diet composition and food selectivity of sprat (Sprattus sprattus) in Hardangerfjord, Norway
(Journal article; Peer reviewed, 2013-10-15)The diet composition and prey selection of sprat (Sprattus sprattus) was studied in the Hardangerfjord, western Norway during four cruises in spring and autumn of 2009 and 2010. Feeding activity, indicated by stomach ... -
The diet of juvenile Atlantic mackerel (Scomber scombrus) feeding in new northern nursery areas along the Norwegian coast
(Peer reviewed; Journal article, 2022)The North-east Atlantic mackerel stock size increased substantially from 2006–2014 coinciding with high recruitment. This resulted in a pronounced northerly geographic expansion of mackerel, followed by an influx of juvenile ... -
Differential changes in growth patterns of anadromous brown trout and Atlantic salmon from the River Etneelva over a 25-year period
(Journal article; Peer reviewed, 2013-10-15)Freshwater and marine growth of anadromous brown trout (Salmo trutta) and Atlantic salmon (Salmo salar) from the River Etneelva was analysed in relation to river, fjord and ocean temperatures during the periods 1976-1982 ... -
Dispersion of salmon lice in the Hardangerfjord
(Journal article; Peer reviewed, 2013-10-15)The abundance of salmon lice in the Hardangerfjord is potentially large enough to be a threat to the wild fish stocks of the fjord. The salmon louse spends a period of 2–4 weeks in its planktonic stages drifting in the ... -
Distinction and relatedness – Taxonomic and genetic studies reveal a new species group of goatfishes (Upeneus; Mullidae)
(Journal article; Peer reviewed, 2015-10-07)Phenotypic and genetic differentiation among goatfish species of the genus Upeneus which had been formerly included in the so-called ‘vittatus group’ were examined using a comprehensive alpha-taxonomic and barcoding approach. ... -
Distribution and habitat of Scalpellidae (Cirripedia: Thoracica) in the Norwegian and Barents Seas
(Peer reviewed; Journal article, 2021)We describe the distribution and habitats of Amigdoscalpellum hispidum, Weltnerium stroemii, Scalpellum scalpellum, Weltnerium cornutum, Catherinum striolatum, Weltnerium nymphocola and Hamatoscalpellum hamatum in the ... -
Diverse and vulnerable deep-water biotopes in the Hardangerfjord
(Journal article; Peer reviewed, 2013-10-15)This study describes the distribution, species composition and environmental characteristics of benthic habitats and biotopes from 38 stations in the Hardangerfjord, based on observations using high-definition video. Faunal ... -
Evidence of salmon lice-induced mortality of anadromous brown trout (Salmo trutta) in the Hardangerfjord, Norway
(Journal article; Peer reviewed, 2013-10-15)The Hardangerfjord, western Norway, is an area with a high concentration of salmon farms, high levels of infection of salmon lice in anadromous brown trout, and declining trout populations. This study assessed the marine ... -
Historical changes in macroalgal communities in Hardangerfjord (Norway)
(Journal article; Peer reviewed, 2013-10-15)Hardangerfjord is the second largest fjord in Norway and is situated on the southwest coast. During the last century the fjord has been influenced by a variety of anthropogenous activities such as industry, hydro-electrical ... -
Historical changes in macroalgal communities in Hardangerfjord (Norway)
(Peer reviewed; Journal article, 2014) -
Marine Biology Research - Ocean Exploration and Marine Ecosystems
(Journal article, 2007) -
Marine Biology Research - the third year
(Journal article, 2007) -
Microsatellite DNA used for parentage identification of partly digested Atlantic salmon (Salmo salar) juveniles through non-destructive diet sampling in salmonids
(Journal article; Peer reviewed, 2013-10-15)Predation during early life history is an important component of fitness in salmonids. Farmed Atlantic salmon display lower survival in the wild in comparison to wild salmon; however, the underlying mechanisms remain ... -
Population structure of bycaught harbour porpoise (Phocoena phocoena) in Norway
(Peer reviewed; Journal article, 2020) -
Regional impact from fin-fish farming in an intensive production area (Hardangerfjord, Norway)
(Journal article; Peer reviewed, 2013-10-15)The Hardangerfjord is one of the largest salmon-farming areas in Norway, with an annual production of approximately 70,000 metric tonnes. The regional impact of fin-fish farming in a fjord environment was studied during ... -
Regional impact from fin-fish farming in an intensive production area (Hardangerfjord, Norway)
(Peer reviewed; Journal article, 2014)