Browsing Bergen Open Research Archive by Author "Salvanes, Anne Gro Vea"
Now showing items 1-20 of 32
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Acoustic telemetry predation sensors reveal the tribulations of Atlantic salmon (Salmo salar) smolts migrating through lakes
Hanssen, Erlend Mjelde; Vollset, Knut Wiik; Salvanes, Anne Gro Vea; Barlaup, Bjørn; Whoriskey, Kim; Isaksen, Trond Einar; Normann, Eirik Straume; Hulbak, Magnus Andre; Lennox, Robert (Journal article; Peer reviewed, 2021)Smolt migration through lakes is hazardous, as the predation pressure can be extreme and the hydrology a great contrast to that of a riverine area. However, the mechanisms yielding these challenges have been scarcely ... -
Behavioural and physiological adaptations of the bearded goby, a key fish species of the extreme environment of the northern Benguela upwelling
Salvanes, Anne Gro Vea; Utne-Palm, Anne Christine; Currie, Bronwen; Braithwaite, Victoria A. (Peer reviewed; Journal article, 2011-03-14)Nutrient-rich, upwelling marine areas with high productivity often produce sediments dominated by organic-rich mud. Here, intense decay processes create hypoxic conditions with high concentrations of hydrogen sulphide and ... -
Cognition: Learning and Memory
Braithwaite, Victoria A.; Salvanes, Anne Gro Vea (Chapter, 2008) -
Does vaterite otolith deformation affect post-release survival and predation susceptibility of hatchery-reared juvenile Atlantic Salmon?
Delaval, Aurelien Nicolas; Solås, Martine Røysted; Skoglund, Helge; Salvanes, Anne Gro Vea (Journal article; Peer reviewed, 2021)Sagittal otoliths are calcareous structures in the inner ear of fishes involved in hearing and balance. They are usually composed of aragonite; however, aragonite can be replaced by vaterite, a deformity which is more ... -
Dominating sublittoral fish species in a west Norwegian fjord and their trophic links to cod (Gadus morhua L.)
Salvanes, Anne Gro Vea; Nordeide, Jarle Tryti (Peer reviewed; Journal article, 1993)The fish fauna in the sublittoral habitat of Masfjorden, western Norway, has been studied in order to reveal survival and growth prospects of released juvenile cod in a large-scale stock enhancement experiment. Seasonal ... -
Ecosystem model for evaluating potential cod production in a west Norwegian fjord
Salvanes, Anne Gro Vea; Aksnes, Dag Lorents; Giske, Jarl (Peer reviewed; Journal article, 1992-12-08)The carrying capacity for cod in a Norwegian fjord was analysed by means of a simulation model. Four age groups of cod were represented as well as the maln prey groups labrids, gobies and benthic organisms. These groups ... -
Effects of formaldehyde and ethanol preservation on body and otoliths of Maurolicus muelleri and Benthosema glaciale
Kristoffersen, Jon Bent; Salvanes, Anne Gro Vea (Peer reviewed; Journal article, 1998)First of its kind, this study examines effects of preservatives on otoliths as well as on fish size and weight. Effects of 200 days of preservation in 4 % seawater formaldehyde solution and 80 % ethanol were investigated ... -
Effects of habitat enrichment and food availability on the foraging behaviour of juvenile Atlantic Cod (Gadus morhua L)
Moberg, Olav; Braithwaite, Victoria A.; Jensen, Knut Helge; Salvanes, Anne Gro Vea (Peer reviewed; Journal article, 2011-04-13)The environment can play an important role in shaping how an animal behaves, and how well the animal performs in a particular environment can be influenced by early experiences. The tradition of releasing captive-reared ... -
Enrichment promotes learning in fish
Strand, David A.; Utne-Palm, Anne Christine; Jakobsen, Per Johan; Braithwaite, Victoria A.; Jensen, Knut Helge; Salvanes, Anne Gro Vea (Peer reviewed; Journal article, 2010-08-18)Captive birds and mammals reared in enriched rearing environments have been shown to behave more flexibly compared to animals reared in impoverished or plain environments. Recent evidence has shown that this is also true ... -
Environmental variability in the early rearing environment generates behaviourally flexible cod: implications for rehabilitating wild populations
Braithwaite, Victoria A.; Salvanes, Anne Gro Vea (Peer reviewed; Journal article, 2005-06-02)The release of hatchery-reared fishes for restoring threatened and endangered populations is one of the most controversial issues in applied ecology. A central issue has been to determine whether releases cause extinction ... -
Fishes in a changing world: learning from the past to promote sustainability of fish populations
Gordon, Timothy A.C.; Harding, Harry R.; Clever, Friederike K.; Davidson, Isla Keesje; Davison, William; Montgomery, Daniel W.; Weatherhead, Rebekah C.; Windsor, Fredric M.; Armstrong, John D.; Bardonnet, Agnès; Bergman, Eva; Britton, John Robert; Côté, Isabelle M.; D'agostino, Daniele; Greenberg, Larry; Harborne, Alastair R.; Kahilainen, Kimmo Kalevi; Metcalfe, Neil B.; Mills, Suzanne C.; Milner, Nigel J.; Mittermayer, Felix H.; Montorio, Lucie; Nedelec, Sophie L.; Prokkola, Jenni M.; Rutterford, Louise A.; Salvanes, Anne Gro Vea; Simpson, Stephen D.; Vainikka, Anssi; Pinnegar, John Keith; Santos, Eduarda M. (Journal article; Peer reviewed, 2018)Populations of fishes provide valuable services for billions of people, but face diverse and interacting threats that jeopardize their sustainability. Human population growth and intensifying resource use for food, water, ... -
Fordelingsmønster og dødeleghet av loddelarver, samt berekning av gytebestand, basert på larveundersøkelsane langs Troms- og Finnmarkskysten 1972-1976.
Salvanes, Anne Gro Vea (Master thesis, 1984) -
Genetic structure of Sufflogobius bibarbatus in the Benguela upwelling ecosystem using microsatellite markers
Gunawickrama, Kristogu Baduge Suneetha; Delaval, Aurelien Nicolas; Johansen, Torild; van der Plas, Anja; Salvanes, Anne Gro Vea (Journal article; Peer reviewed, 2020)The bearded goby Sufflogobius bibarbatus is an abundant endemic small fish species on the continental shelf of the northern Benguela. The goby habitat is characterised by generally low bottom oxygen concentrations that ... -
Individual variation in competitive performance in juvenile cod
Hart, Paul J.; Salvanes, Anne Gro Vea (Peer reviewed; Journal article, 2000) -
Is individual variation in competitive performance of reared juvenile cod influenced by haemoglobin genotype?
Salvanes, Anne Gro Vea; Hart, Paul J. (Peer reviewed; Journal article, 2000)To succeed in scramble competition for food an individual fish will have to have characteristics that allow it to respond rapidly to encountered prey. A trait such as metabolic rate, which has a positive effect on oxygen ... -
Korleis gjekk det med havbeiteforsøket med torsk i Masfjorden?
Nordeide, Jarle Tryti; Fosså, Jan Helge; Salvanes, Anne Gro Vea; Smedstad, Odd M.; Borge, Asbjørn; Storaker, Arne (Journal article, 1994) -
Micronekton biomass distribution, improved estimates across four north Atlantic basins
Klevjer, Thor A.; Melle, Webjørn Raunsgård; Knutsen, Tor; Strand, Espen; Korneliussen, Rolf; Dupont, Nicolas; Salvanes, Anne Gro Vea; Wiebe, Peter H. (Peer reviewed; Journal article, 2019)Distribution of micronekton was investigated during early summer of 2013, using data from a cruise covering the central parts of four north Atlantic basins, the Norwegian Sea (NS), Iceland Sea (ICS), Irminger Sea (IRS), ... -
Multi-decadal warming of Atlantic water and associated decline of dissolved oxygen in a deep fjord
Aksnes, Dag Lorents; Aure, Jan; Johansen, Per-Otto; Johnsen, Geir Helge; Salvanes, Anne Gro Vea (Peer reviewed; Journal article, 2019-11)Previous studies have shown decline in dissolved oxygen of the ocean basins. A hypothesis for this development is that ocean warming through increased stratification has caused reduced ventilation of the interior ocean. ... -
Negative impacts of the sea lice prophylactic emamectin benzoate on the survival of hatchery released salmon smolts in rivers
Lennox, Robert J.; Salvanes, Anne Gro Vea; Barlaup, Bjørn Torgeir; Stöger, Elisabeth; Madhun, Abdullah; Helle, Turid Myklebust; Vollset, Knut (Journal article; Peer reviewed, 2020)Emamectin benzoate (EB) is a prophylactic pharmaceutical used to protect Atlantic salmon (Salmo salar) smolts migrating out of rivers and into the ocean against sea lice parasites. Randomized control trials comparing the ... -
Ontogenetic Change in Behavioral Responses to Structural Enrichment From Fry to Parr in Juvenile Atlantic Salmon (Salmo salar L.)
Alnes, Ingeborg Bjerkvik; Jensen, Knut Helge; Skorping, Arne; Salvanes, Anne Gro Vea (Journal article; Peer reviewed, 2021)Enrichment is widely used as a tool for studying how changes in environment affect animal behavior. Here, we report an experimental study investigating if behaviors shaped by stimuli from environmental enrichment depending ...