• Blått-karbon: Klimatilpasning, karbonopptak og langtidslagring av karbon i blå skog. Års- og workshoprapport for 2017. 

      Frigstad, Helene; Gundersen, Hege; Hancke, Kasper; Andersen, Guri Sogn; Bekkby, Trine; Tveiten, Lise Ann (NIVA-rapport;7213, Research report, 2017)
      Blått-karbon prosjektet har til hensikt å lage en oppdatert oversikt over karbonkretsløp i blå skog (her: tare, ålegras og tang) i de nordiske landene. Rapporten presenterer foreløpige resultater og fremdrift i prosjektet ...
    • Guidelines and best available techniques for submarine tailings disposal in Norwegian fjords: Recommendations from the NYKOS project. 

      Ramirez-Llodra, Eva; Andersen, Guri Sogn; Bekkby, Trine; Brooks, Steven; Escudero-Oñate, Carlos; Gundersen, Hege; Schaanning, Morten; Trannum, Hilde Cecilie; Yakushev, Evgeniy; Baeten, Nicole; Lepland, Aivo; Ibragimova, Olga; Kleiv, Rolf Arne; Nepstad, Raymond; Muñoz, María; Høgaas, Helge; Sandøy, Roar (NIVA-rapport;7430, Research report, 2019)
      The NYKOS project aimed at addressing some of the main knowledge gaps on the environmental impacts of submarine tailing disposal (STD) to facilitate the development of techniques, practices and management measures that ...
    • Habitat features and their influence on the restoration potential of marine habitats in Europe 

      Bekkby, Trine; Papadopoulou, Nadia; Fiorentino, Dario; McOwen, Chris J.; Rinde, Eli; Boström, Christoffer; Carreiro-Silva, Marina; Linares, Cristina; Andersen, Guri Sogn; Bengil, Elizabeth Grace Tunka; Bilan, Meri; Cebrian, Emma; Cerrano, Carlo; Donovaro, Roberto; Fagerli, Camilla With; Fraschetti, Simonetta; Gagnon, Karine; Gambi, Cristina; Gundersen, Hege; Kipson, Silvija; Kotta, Jonne; Morato, Telmo; Ojaveer, Henn; Ramirez-Llodra, Eva (Peer reviewed; Journal article, 2020)
      To understand the restoration potential of degraded habitats, it is important to know the key processes and habitat features that allow for recovery after disturbance. As part of the EU (Horizon 2020) funded MERCES project, ...
    • In a squeeze: Epibiosis may affect the distribution of kelp forests 

      Andersen, Guri Sogn; Christie, Hartvig C; Moy, Frithjof Emil (Journal article; Peer reviewed, 2019)
      The processes limiting the population recovery of the kelp Saccharina latissima after recent large‐scale loss from the south coast of Norway are poorly understood. Previous investigations do, however, suggest that the ...
    • Klima-overblikk: Sammenstilling av klimarelevante resultater fra utvalgte overvåkingsprogram i kystsonen 

      Frigstad, Helene; Trannum, Hilde Cecilie; Andersen, Guri Sogn; Kristiansen, Trond; Norli, Marit; Gitmark, Janne Kim; Kaste, Øyvind; Løvoll, Grunde; Eikrem, Wenche (NIVA-rapport;7214-2017, Research report, 2017)
      Miljødirektoratet drifter Økosystemovervåking i kystvann (ØKOKYST), Elvetilførselsprogrammet, Havforsuringsprogrammet og finansierer delvis programmet Marin hardbunnsfauna langs kysten av Nord-Norge og Svalbard. NIVA gir ...
    • Shifts between sugar kelp and turf algae in Norway: regime shifts or flips between different opportunistic seaweed species? 

      Christie, Hartvig C; Andersen, Guri Sogn; Bekkby, Trine; Fagerli, Camilla With; Gitmark, Janne Kim; Gundersen, Hege; Rinde, Eli (Journal article; Peer reviewed, 2019)
      Around year 2000, sugar kelp (Saccharina latissima) forests were observed to disappear in southern parts of Norway, being replaced by mats of turf algae (i.e. filamentous ephemeral algae) loaded with sediments. About 80% ...
    • Synthesis of climate relevant results from selected monitoring programs in the coastal zone. Part 2: Quantitative analyses 

      Frigstad, Helene; Andersen, Guri Sogn; Trannum, Hilde Cecilie; Naustvoll, Lars Johan; Kaste, Øyvind; Hjermann, Dag Øystein (NIVA-rapport;7311, Research report, 2018)
      This report is Part 2 of the project Synthesis of climate relevant results from selected monitoring programs in the coastal zone (Klima-Overblikk). The overall aim of this report was to document changes over the period ...
    • Temperature acclimation and heat tolerance of photosynthesis in Norwegian Saccharina latissima (Laminariales, Phaeophyceae) 

      Andersen, Guri Sogn; Foldager Pedersen, Morten; Nielsen, Søren L. (Journal article; Peer reviewed, 2013)
      Kelps, seaweeds and seagrasses provide important ecosystem services in coastal areas, and loss of these macrophytes is a global concern. Recent surveys have documented severe declines in populations of the dominant kelp ...
    • Undersøkelse av hydrografiske og biologiske forhold i Indre Oslofjord Årsrapport 2019 

      Staalstrøm, Andre; Engesmo, Anette; Andersen, Guri Sogn; Hjermann, Dag Øystein (NIVA-rapport;7515, Research report, 2020)
      Overvåkning av vannmassene på 11 stasjoner for perioden 2017-2019 viser at vannkvaliteten basert på kvalitetselementet planteplankton er moderat innenfor Drøbak. I Bunnebotten og i Bunnefjorden er klorofyll a den utslagsgivende ...