Browsing Brage IMR by Title

Now showing items 11438-11457 of 11646

    • Warm water treatment increased mortality risk in salmon 

      Bui, Samantha; Madaro, Angelico; Nilsson, Jonatan; Fjelldal, Per Gunnar; Iversen, Martin Haugmo; Brinchmann, Monica Fengsrud; Venås, Birger; Schrøder, Merete Bjørgan; Stien, Lars Helge (Peer reviewed; Journal article, 2022)
      Thermal treatment is a controversial method to control sea lice in the Atlantic salmon farming industry. This study aimed to complement the growing evidence base to document the impact of thermal treatments on salmon ...

    • A warmer environment can reduce sociability in an ectotherm 

      Pilakouta, Natalie; O'Donnell, Patrick J.; Crespel, Amélie; Levet, Marie; Claireaux, Marion; Humble, Joseph L.; Kristjánsson, Bjarni K.; Skúlason, Skúli; Lindström, Jan; Metcalfe, Neil B.; Killen, Shaun S.; Parsons, Kevin J. (Peer reviewed; Journal article, 2022)
      The costs and benefits of being social vary with environmental conditions, so individuals must weigh the balance between these trade-offs in response to changes in the environment. Temperature is a salient environmental ...

    • Warming Accelerates the Onset of the Molecular Stress Response and Increases Mortality of Larval Atlantic Cod 

      Oomen, Rebekah Alice; Knutsen, Halvor; Olsen, Esben Moland; Jentoft, Sissel; Stenseth, Nils Christian; Hutchings, Jeffrey (Peer reviewed; Journal article, 2022)
      Temperature profoundly affects ectotherm physiology. Although differential thermal responses influence fitness, thus driving population dynamics and species distributions, our understanding of the molecular architecture ...

    • Warming changes the life history composition of marine fish communities at high latitudes 

      Bernardo, Cristiane Palaretti; Pecuchet, Laurene Anne Marie; Santos, Antonio Jorge Fonseca Antunes; Dolgov, Andrey V.; Fossheim, Maria; Husson, Berengere; Primicerio, Raul (Peer reviewed; Journal article, 2024)
      Across marine ecosystems, species are redistributing as a response to increased sea temperatures. In the Arctic, rapid warming causes poleward shifts of boreal species. Which species are redistributing and the drivers of ...

    • Wasp-Waist Interactions in the North Sea Ecosystem 

      Fauchald, Per; Skov, Henrik; Skern-Mauritzen, Mette; Johns, David; Tveraa, Torkild (Journal article; Peer reviewed, 2011-07-28)
      Background In a “wasp-waist” ecosystem, an intermediate trophic level is expected to control the abundance of predators through a bottom-up interaction and the abundance of prey through a top-down interaction. Previous ...

    • Water balance in cod eggs. In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983 

      Riis-Vestergaard, J. (Flødevigen rapportserie, Conference object, 1984)
      The yolk osmolarity of cod eggs decreases from about 400 mOsm 2 days after spawning to 300 mOsm at hatching, as opposed to a sea water osmolarity of c. l000 nOsm. The osmolarity difference forces an osmotic water loss upon ...

    • Water fluxes through the Barents Sea 

      Loeng, Harald; Ozhigin, Vladimir K.; Ådlandsvik, Bjørn (ICES CM Documents;1995/Mini:10, Working paper, 1995)
      The physical oceanographic conditions in the Barents Sea depend mainly on the variability in the Atlantic inflow from the Norwegian Sea and the inflow of Arctic water from the Kara Sea and the Arctic Ocean. The transport ...

    • Water movements in the central part of the Norwegian Sea based on recent material 

      Eggvin, Jens (ICES CM Documents;1964/138, Working paper, 1964)

    • Water quality and microbial community structure in juvenile Atlantic cod (Gadus morhua L.) cultures 

      van der Meeren, Terje; Brunvold, Laila; Sandaa, Ruth-Anne; Bergh, Øivind; Castberg, Tonje; Thyrhaug, Runar; Mangor-Jensen, Anders (Journal article; Peer reviewed, 2011-06)
      The effect of water treatment and flow rate on young Atlantic cod juveniles was investigated in a 36-days experiment. Four different flow rates (10, 20, 40, and 70 times the effective tank volume per day) were set up in ...

    • Water quality and microbial community structure in juvenile Atlantic cod (Gadus morhua L.) cultures 

      van der Meeren, Terje; Brunvold, Laila; Sandaa, Ruth-Anne; Bergh, Øivind; Castberg, Tonje; Thyrhaug, Runar; Mangor-Jensen, Anders (Journal article; Peer reviewed, 2011-06)
      The effect of water treatment and flow rate on young Atlantic cod juveniles was investigated in a 36-days experiment. Four different flow rates (10, 20, 40, and 70 times the effective tank volume per day) were set up in ...

    • Water temperature and dietary histidine affect cataract formation in Atlantic salmon (Salmo salar L.) diploid and triploid yearling smolt 

      Sambraus, Florian; Fjelldal, Per Gunnar; Remø, Sofie C.; Hevrøy, Ernst Morten; Nilsen, Tom Ole; Thorsen, Anders; Hansen, Tom Johnny; Waagbø, Rune (Peer reviewed; Journal article, 2017)

    • Water type quantification in the Skagerrak, the Kattegat and off the Jutland west coast 

      Kristiansen, Trond; Aas, Eyvind (Journal article; Peer reviewed, 2014-12-06)
      An extensive data series of salinity, nutrients and coloured dissolved organic material (CDOM) was collected in the Skagerrak, the northern part of the Kattegat and off the Jutland west coast in April each year during the ...

    • The Waters of the Western and Northern Coasts of Norway in July-August 1957 

      Ljøen, Rikard (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1962)
      The research was intended to discuss the hydrographical conditions of the water masses in which biological investigations were simultanously undertaken. The data were collected during a cruise in July- August 1957. Some ...

    • Weak seasonality in benthic food web structure within an Arctic inflow shelf region 

      Ziegler, Amanda; Bluhm, Bodil; Renaud, Paul Eric; Jørgensen, Lis Lindal (Peer reviewed; Journal article, 2023)
      The Arctic Ocean is characterized by pronounced seasonality in the quantity and quality of organic matter exported from the surface ocean. While it is well established that changes in food availability can alter the ...

    • Weak seasonality in benthic food web structure within an Arctic inflow shelf region 

      Ziegler, Amanda; Bluhm, Bodil Annikki Ulla Barbro; Renaud, Paul Eric; Jørgensen, Lis Lindal (Peer reviewed; Journal article, 2023)
      The Arctic Ocean is characterized by pronounced seasonality in the quantity and quality of organic matter exported from the surface ocean. While it is well established that changes in food availability can alter the ...

    • Weakening of Cold Halocline Layer Exposes Sea Ice to Oceanic Heat in the Eastern Arctic Ocean 

      Polyakov, Igor V.; Rippeth, Tom; Fer, Ilker; Alkire, Matthew B.; Carmack, Eddy; Ingvaldsen, Randi Brunvær; Ivanov, Vladimir V.; Janout, Markus; Lind, Sigrid; Padman, Laurie; Pnyushkov, Andrey V.; Rember, Robert (Peer reviewed; Journal article, 2020)
      A 15-yr duration record of mooring observations from the eastern (>70°E) Eurasian Basin (EB) of the Arctic Ocean is used to show and quantify the recently increased oceanic heat flux from intermediate-depth (~150–900 m) ...

    • Weaning trials with cod fry on artificial diets 

      Otterå, Håkon; Lie, Øyvind (ICES CM Documents;1990/F:47, Working paper, 1990)
      Three experiments with different size groups of cod fry, 13, 49 and 465 mg wet-weight were offered 6 different artificial diets. The experiments lasted for 28 days. Growth, and for the medium size-group chemical composition ...

    • WebGR – storing images of biological material and creating a framework to promote the implementation of sound statistical analysis in age calibration 

      McCurdy, W.J.; Anastasopoulou, A.; Berth, U.; de Boois, I.J.; Bolle, L. J.; Cardador, F.; Jardim, Ernesto; Mahé, K.; Modin, J.; Moksness, Erlend; Murenu, M.; Mytilineou, C.; Pforr, I.; Piñeiro, C.G.; Quincoces, I.; Rauthe, N.; Rüßmann, H.-W.; Sjöberg, R.; Stepputtis, D.; Stransky, Christoph; van Damme, Cindy J. G.; Vassilopoulou, V.; Worsøe Clausen, L. (ICES CM documents;2009/N:09, Working paper, 2009)
      The objective of the WebGR project is to develop a set of web services to support the organisation and data analysis of calibration workshops, both for age and maturity information, implemented in a coherent tool installable ...

    • Weeks in Pregnancy on Maternal Iodine Status and Infant Neurodevelopment: Mommy's Food, a Randomized-Controlled Trial 

      Markhus, Maria Wik; Hysing, Mari; Midtbø, Lisa Kolden; Nerhus, Ive; Næss, Synnøve; Aakre, Inger; Kvestad, Ingrid; Dahl, Lisbeth; Kjellevold, Marian (Peer reviewed; Journal article, 2020)
      Background: Mild-to-moderate iodine deficiency is still present in many countries, particularly in pregnant women. Observational studies suggest that mild-to-moderate iodine deficiency during pregnancy may be associated ...

    • Welfare effects of environmental hypercapnia quantified by indicators based on morphology and allostatic load in Atlantic salmon (Salmo salar) 

      Höglund, Erik; Folkedal, Ole; Aerts, Johan; Hvas, Malthe; Øverli, Øyvind; Mangor-Jensen, Anders; Vindas, Marco A.; Nilsson, Jonatan; Kristiansen, Tore (Peer reviewed; Journal article, 2023)
      Water supply is a limited resource in most salmon hatcheries, which is compensated by reduced water flow and oxygenation. However, reduced water exchange can lead to accumulation of CO2, resulting in environmental hypercapnia, ...