Blar i Scientific publications på emneord "Atlantic salmon"
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Alpine bullhead (Cottus poecilopus Heckel): a potential refuge for Gyrodactylus salaris Malmberg, 1957 (Monogenea)
(Peer reviewed; Journal article, 2019)The notifiable freshwater pathogen Gyrodactylus salaris Malmberg, 1957 tends to be a generalist in contrast to other monogeneans. Whilst it causes most damage to its primary host, the Atlantic salmon (Salmo salar Linnaeus), ... -
Bias in estimates of electrofishing capture probability of juvenile Atlantic salmon
(Journal article; Peer reviewed, 2018)We evaluated the effect of the total number of passes used, and the application of block nets, on multi-pass electrofishing removal sampling for estimating juvenile Atlantic salmon (Salmo salar L.) abundance and body size ... -
Climate-driven biophysical changes in feeding and breeding environments explain the decline of southernmost European Atlantic salmon populations
(Peer reviewed; Journal article, 2019)The consistency of the global declining trend of Atlantic salmon (Salmo salar) populations suggests that climate-driven reduced survival and growth at sea are the main driving factors. The southernmost populations have ... -
Considering sampling bias in close-kin mark–recapture abundance estimates of Atlantic salmon
(Peer reviewed; Journal article, 2021)Genetic methods for the estimation of population size can be powerful alternatives to conventional methods. Close-kin mark–recapture (CKMR) is based on the principles of conventional mark–recapture, but instead of being ... -
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 ... -
‘Do you care about the river?’ A critical discourse analysis and lessons for management of social conflict over Atlantic salmon (Salmo salar) conservation in the case of voluntary stocking in Wales
(Peer reviewed; Journal article, 2019)1. Stakeholders with shared interests in fish conservation often disagree about which specific conservation measures are appropriate, leading to conflicts with sometimes long‐lasting and disruptive social and political ... -
Escape history and proportion of farmed Atlantic salmon Salmo salar on the coast and in an adjacent salmon fjord in Norway
(Peer reviewed; Journal article, 2020)To gain more knowledge about escaped farmed salmon Salmo salar in the wild, we investigated the proportion of escapees, body length at escape, proportion escaped as smolts/post-smolts (≤300 mm) and number of winters in the ... -
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 ... -
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 ... -
Modelling the effect of hydropeaking‐induced stranding mortality on Atlantic salmon population abundance
(Journal article; Peer reviewed, 2018)Studies of hydropeaking‐induced stranding mortality on fish populations have been confined to analysis of empirical data and/or short‐term hydraulic‐habitat modelling of individual events and are thus limited as to how ... -
Monitoring presence and abundance of two gyrodactylid ectoparasites and their salmonid hosts using environmental DNA
(Peer reviewed; Journal article, 2019)Background: Invasive species represent a major challenge for the conservation of biodiversity. The invasive ectoparasitic fluke Gyrodactylus salaris is considered one of the major threats to the Atlantic salmon (Salmo ... -
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 ... -
Optimal timing of return migration in Atlantic salmon
(Peer reviewed; Journal article, 2024)In many populations of Atlantic salmon, individuals return to rivers months or even a year prior to spawning. This premature arrival in fresh water by far exceeds the time needed for upstream migrations to spawning areas. ... -
Pink salmon in Norway: the reluctant invader
(Peer reviewed; Journal article, 2018)In 2017, Norway experienced an invasion of the Pacific salmonid pink salmon (Oncorhynchus gorbuscha) in numbers never before seen in rivers all along the coast. Significant numbers were also caught in other parts of ... -
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 ...