Blar i Publikasjoner fra CRIStin på forfatter "Hjøllo, Solfrid Sætre"

Viser treff 1-20 av 24

    • An assessment of the added value from data assimilation on modelled Nordic Seas hydrography and ocean transports 

      Lien, Vidar Surén; Hjøllo, Solfrid Sætre; Skogen, Morten D.; Svendsen, Einar; Wehde, Henning; Bertino, Laurent; Counillon, Francois; Chevalier, Matthieu; Giles, Garric (Journal article; Peer reviewed, 2016-01-04)
      The Nordic Seas is a hotspot both in terms of climate related processes, such as Atlantic–Arctic heat exchange, and natural marine resources. A sustainable management of the marine resources within the Nordic Seas, including ...

    • Assessing the importance of zooplankton sampling patterns with an ecosystem model 

      Hjøllo, Solfrid Sætre; Hansen, Cecilie; Skogen, Morten D. (Peer reviewed; Journal article, 2021)
      The copepod Calanus finmarchicus is the dominant species of mesozooplankton in the Norwegian Sea and an important food source for multiple commercially exploited pelagic fish stocks. In addition to the patchy distribution ...

    • Climate change with increasing seawater temperature will challenge the health of farmed Atlantic Cod (Gadus morhua L.) 

      Ytteborg, Elisabeth; Falconer, Lynne; Krasnov, Aleksei; Johansen, Lill-Heidi; Timmerhaus, Gerrit; Johansson, Gunhild Seljehaug; Afanasyev, Sergey; Høst, Vibeke; Hjøllo, Solfrid Sætre; Hansen, Øyvind J; Lazado, Carlo C. (Peer reviewed; Journal article, 2023)
      Aquaculture is one of the fastest growing food production sectors in the world and further expansion is expected throughout the 21st century. However, climate change is threatening the development of the sector and action ...

    • Context matters when using climate model projections for aquaculture 

      Falconer, Lynne; Ytteborg, Elisabeth; Goris, Nadine; Lauvset, Siv Kari; Sandø, Anne Britt; Hjøllo, Solfrid Sætre (Peer reviewed; Journal article, 2023)
      At present, specific guidance on how to choose, assess and interpret climate model projections for the aquaculture sector is scarce. Since many aspects of aquaculture production are influenced by the local farm-level ...

    • Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae 

      Endo, Clarissa; Vikebø, Frode Bendiksen; Yaragina, Natalia A.; Hjøllo, Solfrid Sætre; Stige, Leif Christian (Peer reviewed; Journal article, 2020)
      The spatial distribution of fish early life stages can impact recruitment at later stages and affect population size and resilience. Northeast Arctic (NEA) cod spawning occurs along the Norwegian coast. Eggs, larvae, and ...

    • The effects of spatial and temporal variations in spawning on offspring survival in Northeast Arctic cod 

      Endo, Clarissa; Skogen, Morten D.; Stige, Leif Christian; Hjøllo, Solfrid Sætre; Vikebø, Frode Bendiksen (Peer reviewed; Journal article, 2023)
      Climate change and harvesting result in temporal and spatial changes and variability in spawning, and thus in offspring ambient drift conditions. As a result, variable survival of offspring and thereby in recruitment are ...

    • Evaluating acoustic-trawl survey strategies using an end-to-end ecosystem model 

      Holmin, Arne Johannes; Mousing, Erik Askov; Skogen, Morten D.; Hjøllo, Solfrid Sætre; Huse, Geir; Handegard, Nils Olav (Peer reviewed; Journal article, 2020)
      Fisheries independent surveys support science and fisheries assessments but are costly. Evaluating the efficacy of a survey before initiating it could save costs. We used the NORWECOM.E2E model to simulate Northeast Atlantic ...

    • Highly mixed impacts of near-future climate change on stock productivity proxies in the North East Atlantic 

      Kjesbu, Olav Sigurd; Sundby, Svein; Sandø, Anne Britt; Alix, Maud; Hjøllo, Solfrid Sætre; Tiedemann, Maik; Skern-Mauritzen, Mette; Junge, Claudia; Fossheim, Maria; Broms, Cecilie; Søvik, Guldborg; Zimmermann, Fabian; Nedreaas, Kjell Harald; Eriksen, Elena; Höffle, Hannes; Hjelset, Ann Merete; Kvamme, Cecilie; Reecht, Yves; Knutsen, Halvor; Aglen, Asgeir; Albert, Ole Thomas; Berg, Erik; Bogstad, Bjarte; Durif, Caroline; Halvorsen, Kim Aleksander Tallaksen; Høines, Åge Sigurd; Hvingel, Carsten; Johannesen, Edda; Johnsen, Espen; Moland, Even; Myksvoll, Mari Skuggedal; Nøttestad, Leif; Olsen, Erik Joel Steinar; Skaret, Georg; Skjæraasen, Jon Egil; Slotte, Aril; Staby, Arved; Stenevik, Erling Kåre; Stiansen, Jan Erik; Stiasny, Martina H.; Sundet, Jan Henry; Vikebø, Frode Bendiksen; Huse, Geir (Peer reviewed; Journal article, 2021)
      Impacts of climate change on ocean productivity sustaining world fisheries are predominantly negative but vary greatly among regions. We assessed how 39 fisheries resources—ranging from data-poor to data-rich stocks—in the ...

    • Insight into real-world complexities is required to enable effective response from the aquaculture sector to climate change 

      Falconer, Lynne; Telfer, Trevor C.; Garrett, Angus; Hermansen, Øystein; Mikkelsen, Eirik Inge; Hjøllo, Solfrid Sætre; McAdam, Bruce J.; Ytteborg, Elisabeth (Journal article, 2022)
      This study demonstrates how a comprehensive knowledge base can be used by the aquaculture industry, researchers, and policymakers as a foundation for more targeted and detailed climate change impact analysis, risk assessments ...

    • Management Scenarios Under Climate Change – A Study of the Nordic and Barents Seas 

      Hansen, Cecilie; Nash, Richard David Marriott; Drinkwater, Kenneth F.; Hjøllo, Solfrid Sætre (Journal article; Peer reviewed, 2019)
      The effects of increasing fishing pressure in combination with temperature increases in the Nordic and Barents Seas have been evaluated using an end-to-end model for the area forced by a downscaled RCP 4.5 climate scenario. ...

    • MILJØVERDIERS SÅRBARHET I NORSKE HAVOMRÅDER — En gjennomgang av sårbarhet til ulike typer påvirkninger i foreslåtte særlig verdifulle og sårbare områder i norske havområder 

      Hansen, Cecilie; Hjøllo, Solfrid Sætre; Ottersen, Geir; Skern-Mauritzen, Mette (Rapport fra havforskningen;2022 - 33, Research report, 2022)
      Det er gjennomført en kunnskapsbasert vurdering av sårbarhet med konfidens for de viktigste påvirkninger på miljøverdier i norske havområder generelt, og for hvert av områdene som er foreslått som Særlig verdifulle og ...

    • Modeling emergent life histories of copepods 

      Huse, Geir; Melle, Webjørn Raunsgård; Skogen, Morten D.; Hjøllo, Solfrid Sætre; Svendsen, Einar; Budgell, William Paul (Journal article; Peer reviewed, 2018)
      The distribution and population dynamics of zooplankton are affected by the interplay between currents, behavior, and selective growth, mortality, and reproduction. Here, we present an individual based model for a copepod ...

    • Modeling the impact of climate change on mussel aquaculture in a coastal upwelling system: A critical assessment 

      Fuentes-Santos, Isabel; Labarta, Uxío; Fernández-Reiriz, María José; Kay, Susan; Hjøllo, Solfrid Sætre; Alvarez-Salgado, X. Antón (Peer reviewed; Journal article, 2021)
      Forecasting of climate change impacts on marine aquaculture production has become a major research task, which requires taking into account the biases and uncertainties arising from ocean climate models in coastal areas, ...

    • Overwintering distribution, inflow patterns and sustainability of Calanus finmarchicus in the North Sea 

      Gao, Shuang; Hjøllo, Solfrid Sætre; Falkenhaug, Tone; Strand, Espen; Edwards, Martin; Skogen, Morten D. (Peer reviewed; Journal article, 2021)
      Calanoid copepods are key taxa in the North Sea as they are the main food source for many fish stocks, such as herring, mackerel and cod. In this study we use an individual-based model for Calanus finmarchicus embedded in ...

    • Panel-based Assessment of Ecosystem Condition of the Norwegian Sea Pelagic Ecosystem 

      Arneberg, Per; Siwertsson, Anna; Husson, Berengere; Børsheim, Knut Yngve; Fauchald, Per; Hjøllo, Solfrid Sætre; Høines, Åge Sigurd; Jones, Elizabeth Marie; Melle, Webjørn Raunsgård; Nøttestad, Leif; Planque, Benjamin; Skagseth, Øystein; Slotte, Aril; Solvang, Hiroko Kato; Stenevik, Erling Kåre (Rapport fra havforskningen;2023 -16, Research report, 2023)
      The System for Assessment of Ecological Condition, coordinated by the Norwegian Environment Agency, is intended to form the foundation for evidence-based assessments of the ecological condition of Norwegian terrestrial and ...

    • Particle aggregation at the edges of anticyclonic eddies and implications for distribution of biomass 

      Samuelsen, Annette; Hjøllo, Solfrid Sætre; Johannessen, Johnny Andre; Patel, Ruben (Journal article; Peer reviewed, 2012)
      Acoustic measurements show that the biomass of zooplankton and mesopelagic fish is redistributed by mesoscale variability and that the signal extends over several hundred meters depth. The mechanisms governing this ...

    • Patterns, efficiency and ecosystem effects when fishing Calanus finmarchicus in the Norwegian Sea—using an individual-based model 

      Hansen, Cecilie; Skogen, Morten D.; Utne, Kjell Rong; Broms, Cecilie; Strand, Espen; Hjøllo, Solfrid Sætre (Peer reviewed; Journal article, 2021)
      Due to the important role of Calanus finmarchicus as key prey for the abundant pelagic fish stocks (Northeast Atlantic mackerel, Norwegian spring spawning herring, blue whiting) in the Norwegian Sea, an increase in the ...

    • PELFOSS (PELagic Fish Observation System Simulator) 

      Skogen, Morten D.; Handegard, Nils Olav; Holmin, Arne Johannes; Hjøllo, Solfrid Sætre; Mousing, Erik Askov; Utne, Kjell Rong; Vabø, Rune (Rapport fra havforskningen;30-2018, Research report, 2018)
      PELFOSS har utviklet en observasjonssystem-simulator for pelagisk fisk i Norskehavet. Simulatoren er en dataløype der romlig fordeling av fiskebestander fra en økosystemmodell er benyttet til å simulere ulike tokt. Disse ...

    • Recruitment regime shifts and nonstationarity are widespread phenomena in harvestable stocks experiencing pronounced climate fluctuations 

      Ma, Shuyang; Huse, Geir; Ono, Kotaro; Nash, Richard David Marriott; Sandø, Anne Britt; Nedreaas, Kjell Harald; Hjøllo, Solfrid Sætre; Sundby, Svein; Clegg, Thomas L; Vølstad, Jon Helge; Kjesbu, Olav Sigurd (Peer reviewed; Journal article, 2023)
      Methods to reliably identify jump discontinuities in biological time series and to assess the specific contribution of various covariates are rapidly progressing. Here, we took advantage of these statistical improvements ...

    • Risikoanalyse for de norske havområdene om direkte og indirekte virkninger av klimaendringer på marine økosystemer under ulike utslippsscenarier - Risikorapport om hav og klima 

      Sandø, Anne Britt; Hjøllo, Solfrid Sætre; Hansen, Cecilie; Skogen, Morten D.; Hordoir, Robinson; Sundby, Svein (Rapport fra havforskningen;2022 - 41, Research report, 2022)
      Bakgrunn for denne rapporten var at regjeringen ønsket å gjennomføre en risikoanalyse for norske havområder av direkte og indirekte virkninger av klimaendringer på marine økosystemer under ulike utslippsscenarier. ...