Browsing Scientific publications by Subject "Salmo salar"
Now showing items 1-20 of 21
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Contemporary ocean warming and freshwater conditions are related to later sea age at maturity in Atlantic salmon spawning in Norwegian rivers
(Journal article; Peer reviewed, 2012)Atlantic salmon populations are reported to be declining throughout its range, raising major management concerns. Variation in adult fish abundance may be due to variation in survival, growth, and timing of life history ... -
Disputing nature in the Anthropocene: technology as friend and foe in the struggle to conserve wild Atlantic salmon (Salmo salar)
(Peer reviewed; Journal article, 2019)The Anthropocene, simply put, is characterized by the recognition that natural processes are inextricably entwined With human influence. Against this backdrop, managing natural resources needs to be fundamentally rethought ... -
Escaped farmed Atlantic salmon grow, migrate and disperse throughout the Arctic Ocean like wild salmon
(Peer reviewed; Journal article, 2013)This paper describes the first observations of escaped farmed Atlantic salmon Salmo salar in the Arctic Ocean. Among 138 individuals of Atlantic salmon captured at the west coast of the Spitsbergen Island at Svalbard in ... -
Escaped farmed Atlantic salmon in Norwegian rivers during 1989–2013
(Journal article; Peer reviewed, 2019)We report on the data from an extensive monitoring programme for the occurrence of escaped farmed Atlantic salmon (Salmo salar) in Norwegian rivers for 25 years. This monitoring started as a 3-year research programme in ... -
Evaluation of genetic effects on wild salmon populations from stock enhancement
(Peer reviewed; Journal article, 2020)Many salmonid populations are of conservation concern, and the release of hatchery-produced juveniles is a frequently used measure to alleviate declines and increase harvest opportunities. While such releases may be of ... -
Generic genetic differences between farmed and wild Atlantic Salmon identified from a 7K SNP-chip
(Peer reviewed; Journal article, 2011)Genetic interactions between farmed and wild conspecifics are of special concern in fisheries where large numbers of domesticated individuals are released into the wild. In the Atlantic salmon (Salmo salar), selective ... -
Genetic evidence of farmed straying and introgression in Swedish wild salmon populations
(Peer reviewed; Journal article, 2021)Escaped farmed Atlantic salmon represent a well-documented and ongoing threat to wild conspecific populations. In Norway, the world-leading producer of farmed salmon, annual monitoring of straying and genetic introgression ... -
Ice-dependent winter survival of juvenile Atlantic salmon
(Peer reviewed; Journal article, 2013)Changes in snow and ice conditions are some of the most distinctive impactsof global warming in cold temperate and Arctic regions, altering the environ-ment during a critical period for survival for most animals. Laboratories ... -
Influences of migration phenology on survival are size-dependent in juvenile Atlantic salmon (Salmo salar)
(Journal article; Peer reviewed, 2017)Long-distance migratory species can reduce mortality risks by synchronizing the migration event and create confusion by swamping predators with high densities. To reduce confusion, predators are known to primarily select ... -
Introgression of non-native mitochondrial haplotypes from farmed to wild Atlantic salmon
(Peer reviewed; Journal article, 2023)Farmed salmon escape and interbreed with wild Atlantic salmon on a large scale. We studied introgression of mitochondrial haplotypes from farmed Atlantic salmon originating from the Eastern Atlantic phylogenetic group to ... -
Linking embryonic temperature with adultreproductive investment in Atlantic salmonSalmo salar
(Peer reviewed; Journal article, 2014)The expression of fitness-related traits, such as egg and gonad size, often varies among habitats and exhibits clinal variation along climatic and latitudinal gradients. However, the mechanisms allowing such variations ... -
Migration of Atlantic salmon post-smolts in a fjord with high infestation pressure of salmon lice
(Journal article; Peer reviewed, 2018)Understanding Atlantic salmon Salmo salar post-smolt coastal migration behaviour is crucial for predicting their exposure to ecological challenges such as the parasite salmon louse Lepeophtheirus salmonis. We compared the ... -
Modifying and parameterizing the individual-based model inSTREAM for Atlantic salmon and brown trout in the regulated Gullspång River, Sweden
(Peer reviewed; Journal article, 2023)We modified, parameterized, and applied the individual-based model inSTREAM version 6.1 for lake-migrating populations of landlocked Atlantic salmon (Salmo salar) and brown trout (S. trutta) in a residual flow stretch of ... -
Natural and anthropogenic drivers of escaped farmed salmon occurrence and introgression into wild Norwegian Atlantic salmon populations
(Peer reviewed; Journal article, 2022)Marine aquaculture of Atlantic salmon (Salmo salar) is a relatively new industry where breeding programs have led to rapid genetic change in the captive populations that were built up alongside conspecific wild individuals. ... -
Optimal size at seaward migration in an anadromous salmonid
(Journal article; Peer reviewed, 2016)In this study, the probabilistic reaction norm was calculated for length at different ages of smolting before seaward migration of Atlantic salmon Salmo salar spawning in the Norwegian River Imsa. The reaction norm was ... -
Predation of Atlantic salmon across ontogenetic stages and impacts on populations
(Peer reviewed; Journal article, 2023)Managers and stakeholders increasingly ask whether predation is a driving force behind the poor status of many species, and whether predator control is likely to be a successful management action to intervene. We review ... -
Selection against individuals from genetic introgression of escaped farmed salmon in a natural population of Atlantic salmon
(Peer reviewed; Journal article, 2021)The viability of wild Atlantic salmon populations is threatened by genetic introgression from escaped farmed salmon. Farmed Atlantic salmon are genetically improved for important commercial traits and a life in captivity ... -
Stable isotope marking of otoliths duringvaccination: a novel method for mass-marking fish
(Peer reviewed; Journal article, 2014)Tagging or marking of fishes enables the collection of population-based information for ecological research, yet few techniques enable 100% mark detection success. We tested a new mass-marking technique: otolith marking ... -
Supportive breeders of Atlantic salmon Salmo salar have reduced fitness in nature
(Peer reviewed; Journal article, 2019)Wild Atlantic salmon (Salmo salar) are in decline over the entire distribution area, and populations are enhanced by supportive breeding. Parental fish are sampled in rivers, crossed and the offspring reared in hatcheries ... -
Temporal shifts in the marine feeding of individual Atlantic salmon inferred from scale isotope ratios
(Peer reviewed; Journal article, 2023)Given the limited information on prey use during the marine residency period for Atlantic salmon, scales were collected from salmon at return to the River Namsen (Norway) for spawning after 1 year at sea, and scale material ...