Browsing Brage IMR by Author "Freitas, Carla"

Now showing items 1-20 of 24

    • Atlantic cod individual spatial behaviour and stable isotope associations in a no-take marine reserve 

      Monk, Christopher; Power, Michael; Freitas, Carla; Harrison, Philip M.; Heupel, Michelle; Kuparinen, Anna; Moland, Even; Simpfendorfer, Colin; Villegas-Ríos, David; Olsen, Esben Moland (Peer reviewed; Journal article, 2023)
      Foraging is a behavioural process and, therefore, individual behaviour and diet are theorized to covary. However, few comparisons of individual behaviour type and diet exist in the wild. We tested whether behaviour type ...

    • Bayesian estimation of spatially varying mortality risk using tagged animal data 

      Poulton, Anna J.; Villegas-Ríos, David; Freitas, Carla; Moland, Even; Olsen, Esben Moland; Sethi, Suresh A.; Ellner, Stephen P. (Peer reviewed; Journal article, 2024)
      The survival of animals is impacted by landscapes of spatially varying mortality factors including habitat type, predation risk or harvest risk, among others. Characterization of these spatial mortality processes is important ...

    • Behavioral responses of Atlantic cod to sea temperature changes 

      Freitas, Carla; Olsen, Esben Moland; Moland, Even; Ciannelli, Lorenzo; Knutsen, Halvor (Journal article; Peer reviewed, 2015-04-17)

    • Disentangling structural genomic and behavioral barriers in a sea of connectivity 

      Barth, Julia Maria Isis; Villegas-Ríos, David; Freitas, Carla; Moland, Even; Star, Bastiaan; André, Carl; Knutsen, Halvor; Bradbury, Ian; Dierking, Jan; Petereit, Christoph; Righton, David; Metcalfe, Julian; Jakobsen, Kjetill Sigurd; Olsen, Esben Moland; Jentoft, Sissel (Journal article; Peer reviewed, 2019)
      Genetic divergence among populations arises through natural selection or drift and is counteracted by connectivity and gene flow. In sympatric populations, isolating mechanisms are thus needed to limit the homogenizing ...

    • Eco-evolutionary dynamics of Atlantic cod spatial behavior maintained after the implementation of a marine reserve 

      Villegas-Ríos, David; Freitas, Carla; Moland, Even; Olsen, Esben Moland (Peer reviewed; Journal article, 2022)
      The effects of marine reserves on the life history and demography of the protected populations are well-established, typically increasing population density and body size. However, little is known about how marine reserves ...

    • Ecosystem-level effects of large-scale disturbance in kelp forests 

      Norderhaug, KM; Filbee-Dexter, K; Freitas, Carla; Birkely, Sten Richard; Christensen, Lene; Mellerud, Ida Kristin; Thormar, Jonas; van Son, Thijs Christiaan; Moy, Frithjof Emil; Vázquez Alonso, M.; Steen, Henning (Peer reviewed; Journal article, 2020)

    • First insights into the movements and vertical habitat use of blue marlin (Makaira nigricans) in the eastern North Atlantic 

      Freitas, Carla; Freitas, Mafalda; Andrzejaczek, Samantha; Dale, Jonathan J.; Whippen, Wayne; Block, Barbara A. (Peer reviewed; Journal article, 2022)
      The blue marlin (Makaira nigricans) is a vulnerable migratory fish inhabiting tropical and subtropical pelagic waters of the Atlantic, Pacific and Indian Oceans. The biology and spatial ecology of the species in the eastern ...

    • Haulout Patterns of Harbour Seal Colonies in the Norwegian Skagerrak, as Monitored through Time-Lapse Camera Surveys 

      Meurs, Elsa Alie Ylona van; Moland, Even; Bjørge, Arne Jostein; Freitas, Carla (Peer reviewed; Journal article, 2024)
      Harbour seals (Phoca vitulina) are part of the Norwegian coastal ecosystem and can be observed on skerries, islands, and sandbanks along the coastline, sometimes in close proximity to inhabited areas. In this study, we ...

    • Impacts of salmon lice on mortality, marine migration distance and premature return in sea trout 

      Serra Llinares, Rosa Maria; Bøhn, Thomas; Karlsen, Ørjan; Nilsen, Rune; Freitas, Carla; Albretsen, Jon; Haraldstad, Tormod; Thorstad, Eva Bonsak; Elvik, Kristine Marit Schrøder; Bjørn, Pål Arne (Peer reviewed; Journal article, 2020)
      Brown trout Salmo trutta (L.) is a facultative anadromous species, where a portion of individuals in populations with access to the sea perform migrations to use the richer feeding resources. We investigated the effect of ...

    • Importance of fast ice and glacier fronts for female polar bears and their cubs during spring in Svalbard, Norway 

      Freitas, Carla; Kovacs, Kit M.; Andersen, Magnus; Aars, Jon; Sandven, Stein; Skern-Mauritzen, Mette; Pavlova, Olga; Lydersen, Christian (Journal article; Peer reviewed, 2012-02-13)
      Arctic sea ice is declining rapidly, making it vital to understand the importance of different types of sea ice for ice-dependent species such as polar bears Ursus maritimus. In this study we used GPS telemetry (25 polar ...

    • Inferring individual fate from aquatic acoustic telemetry data 

      Villegas-Ríos, David; Freitas, Carla; Moland, Even; Thorbjørnsen, Susanna Huneide; Olsen, Esben M. (Peer reviewed; Journal article, 2020)
      Acoustic telemetry has become a popular means of obtaining individual behavioural data from a wide array of species in marine and freshwater systems. Fate information is crucial to understand important aspects of population ...

    • Krafttak for kysttorsken - Kunnskap for stedstilpasset gjenoppbygging av bestander, naturtyper og økosystem i Færder- og Ytre Hvaler nasjonalparker 

      Moland, Even; Synnes, Ann-Elin; Naustvoll, Lars Johan; Freitas, Carla; Norderhaug, Kjell Magnus; Thormar, Jonas; Biuw, Martin; Jorde, Per Erik; Knutsen, Halvor; Dahle, Geir; Jelmert, Anders; Bosgraaf, Sebastian; Olsen, Esben Moland; Deininger, Anne; Haga, Atle (Rapport fra havforskningen;2021 - 2, Research report, 2021)
      Ytre Oslofjord har en unik kystnatur av svært stor verdi for både fastboende og tilreisende. Færder- og Ytre Hvaler nasjonalparker ligger side om side ytterst i fjorden, og skal sikre naturverdiene for kommende generasjoner. ...

    • Liste over forvaltningsrelevante naturenheter - Oppfølgende informasjon til rapporten "Forvaltningsrelevante naturenheter i sjø" 

      Marquez, Jonatan Fredricson; van der Meeren, Gro Ingleid; van der Meeren, Terje; Albretsen, Jon; Ross, Rebecca; Steen, Henning; Norderhaug, Kjell Magnus; Halvorsen, Kim Aleksander Tallaksen; Mortensen, Stein; Knutsen, Halvor; Thormar, Jonas; Jorde, Per Erik; Juliussen, Elisabeth Helene; Kroglund, Tone; Freitas, Carla; Søvik, Guldborg; Kutti, Tina; Naustvoll, Lars Johan; Skern-Mauritzen, Mette; Aarflot, Johanna Myrseth; Moland, Even; Franzè, Gayantonia; Berg, Florian; Grefsrud, Ellen Sofie; Zimmermann, Fabian; Johannesen, Edda; Langhelle, Erlend; Midtun, Halvard Aas; Godiksen, Jane Aanestad; Fall, Johanna Jennifer Elisabeth; Skjæraasen, Jon Egil; Korsbrekke, Knut; Aune, Magnus; Grønnevik, Sigmund; Buhl-Mortensen, Pål; Berg, Erik; Nedreaas, Kjell Harald; Wienerroither, Rupert; Huserbråten, Mats Brockstedt Olsen; Kvamme, Cecilie; Johnsen, Espen; Arneberg, Per; Espeland, Sigurd Heiberg (Rapport fra havforskningen;2024 - 53, Research report, 2024)
      I forbindelse med forvaltningens oppgave om å lage en framtidig samlet offentlig instruks for kartlegging av marin natur, bestilte fiskeridirektoratet i en oversikt over der havforskningsinstituttet ville foreslå som ...

    • Nutrient concentrations in minke whale faeces and the potential impact on dissolved nutrient pools off Svalbard, Norway 

      Freitas, Carla; Gundersen, Kjell; Lindblom, Lotta; Biuw, Martin; Haug, Tore (Peer reviewed; Journal article, 2023)
      There is increasing interest in assessing the impact of whales on nutrient and carbon cycling in the ocean. By fertilising surface waters with nutrient-rich faeces, whales may stimulate primary production and thus carbon ...

    • Personalities influence spatial responses to environmental fluctuations in wild fish 

      Villegas-Rios, David; Réale, Denis; Freitas, Carla; Moland, Even; Olsen, Esben Moland (Journal article; Peer reviewed, 2018)
      Although growing evidence supports the idea that animal personality can explain plasticity in response to changes in the social environment, it remains to be tested whether it can explain spatial responses of individuals ...

    • Personalities influence spatial responses to environmental fluctuations in wild fish 

      Villegas-Rios, David; Réale, Denis; Freitas, Carla; Moland, Even; Olsen, Esben Moland (Peer reviewed; Journal article, 2018)

    • Pilotprosjekt for vurdering av samlet påvirkning i Oslofjorden – ytre del 

      Aarflot, Johanna Myrseth; Naustvoll, Lars Johan; Moy, Frithjof Emil; Norderhaug, Kjell Magnus; Berg, Florian; Kvamme, Cecilie; Søvik, Guldborg; Kleiven, Alf Ring; Albretsen, Jon; Freitas, Carla; Thorbjørnsen, Susanna Huneide; Falkenhaug, Tone (Rapport fra havforskningen;2024 - 15, Research report, 2024)
      Stor befolkningstetthet, høy menneskelig aktivitet og miljøutfordringer gjør at det er viktig å vurdere menneskelig påvirkning i Oslofjorden samlet. Denne rapporten presenterer en tverrsektoriell fremstilling av samlet ...

    • Raet nasjonalpark — Kunnskap og råd for bevaring av marint naturmangfold 

      Kleiven, Alf Ring; Thorbjørnsen, Susanna Huneide; van der Meeren, Gro Ingleid; Freitas, Carla; Naustvoll, Lars Johan; Moland, Even; Norderhaug, Kjell Magnus; Falkenhaug, Tone; Reamon, Molly Claire; Hagestad, Stine; Eckbo, Norith Habberstad (Rapport fra havforskningen;2024 - 38, Research report, 2024)
      På oppdrag for prosjektet «Bevar Raet» har av forskningsinstituttet utarbeidet en rapport om kunnskapsstatus for sjøområdene i og rundt Raet nasjonalpark. Formålet med rapporten er å bidra med et kunnskapsgrunnlag for at ...

    • Restoration of Abundance and Dynamics of Coastal Fish and Lobster Within Northern Marine Protected Areas Across Two Decades 

      Moland, Even; Fernández-Chacón, Albert; Sørdalen, Tonje Knutsen; Villegas-Rios, David; Thorbjørnsen, Susanna Huneide; Halvorsen, Kim Aleksander Tallaksen; Huserbråten, Mats Brockstedt Olsen; Olsen, Esben Moland; Kleiven, Portia Joy Nillos; Kleiven, Alf Ring; Knutsen, Halvor; Espeland, Sigurd Heiberg; Freitas, Carla; Knutsen, Jan Atle (Peer reviewed; Journal article, 2021)
      This article reviews a suite of studies conducted in a network of coastal Marine Protected Areas (MPAs) in Skagerrak, Southeast Norway. In 2006, Norway’s first lobster reserves were implemented, with the aim of protecting ...

    • Sea temperature effects on depth use and habitat selection in a marine fish community 

      Freitas, Carla; Villegas-Ríos, David; Moland, Even; Olsen, Esben Moland (Peer reviewed; Journal article, 2021)
      Understanding the responses of aquatic animals to temperature variability is essential to predict impacts of future climate change and to inform conservation and management. Most ectotherms such as fish are expected to ...