Now showing items 1473-1492 of 2160

    • Radiation effects and ecological processes in a freshwater microcosm 

      Hevrøy, Tanya H; Golz, Anna-Lea; Hansen, Elisabeth L; Xie, Li; Bradshaw, Clare (Peer reviewed; Journal article, 2019)
      Ecosystem response to gamma radiation exposure depends on the different species sensitivities and the multitude of direct and indirect pathways by which individual organisms can be affected, including the potential for ...
    • Rapid colonization of aquatic communities in an urban stream after daylighting 

      Baho, Didier L; Arnott, David; Myrstad, Karoline D; Schneider, Susanne C; Moe, Therese F (Peer reviewed; Journal article, 2021)
      Restoring aquatic ecosystems is still at an early stage and the outcomes of the remediation techniques used are often not reported, which limit opportunities to learn and further improve these methods. One common remediation ...
    • Rapid development of fast and flexible environmental models: the Mobius framework v1.0 

      Norling, Magnus Dahler; Jackson-Blake, Leah Amber; Calidonio, José-Luis Guerrero; Sample, James Edward (Peer reviewed; Journal article, 2021)
      The Mobius model building system is a new open-source framework for building fast and flexible environmental models. Mobius makes it possible for researchers with limited programming experience to build performant models ...
    • Rapid expansion of the invasive oyster Crassostrea gigas at its northern distribution limit in Europe: Naturally dispersed or introduced? 

      Angles d'Auriac, Marc; Rinde, Eli; Norling, Pia Carina; Lapegue, Sylvie; Staalstrøm, Andre; Hjermann, Dag Øystein; Thaulow, Jens (Journal article; Peer reviewed, 2017)
      The Pacific oyster, Crassostrea gigas, was introduced to Europe for aquaculture purposes, and has had a rapid and unforeseen northward expansion in northern Europe. The recent dramatic increase in number of C. gigas ...
    • Rapport fra workshop med norske interessenter om overvåking av forsøpling 

      Falk-Andersson, Jannike; Haar, Marthe Larsen; Thorstensen, Helene Skjeie; Bårdsdatter, Helga; Rød, Anja Meland (NIVA-rapport;7865-2023, Research report, 2023)
      Denne rapporten oppsummerer innspill fra deltagere under workshop holdt med norske interessenter på temaet «Overvåkning av forsøpling, med fokus på makroplast». Formålet med workshopen var å diskutere utfordringer og ...
    • Re-calibration of the MAGIC model with data from the National Lake Survey 2019. 

      Kaste, Øyvind; Norling, Magnus Dahler; Austnes, Kari; Cosby, Bernard J.; Wright, Richard Frederic (NIVA-rapport;7799-2022, Research report, 2022)
      The MAGIC model (Model for Acidification of Groundwater In Catchments) was calibrated to the Norwegian 1000-lake survey data from both 1995 and 2019. The re-survey in 2019 provided a new point in time for generation of new ...
    • Re-calibration of the MAGIC model with data from the National Lake Survey 2019. Results from phase 2 

      Kaste, Øyvind; Norling, Magnus Dahler; Balkoni, Areti; Austnes, Kari; Cosby, Bernard J.; Wright, Richard F. (NIVA-rapport;7915-2023, Research report, 2023)
      The biogeochemical MAGIC model has been applied to the data from the 1995 and 2019 surveys of 1000 Norwegian lakes. The work is a follow-up of a modelling exercise that was done in 2022, with improved input data and with ...
    • Re-Meandering of lowland streams: Will disobeying the laws of geomorphology have ecological consequences? 

      Pedersen, Morten Lauge; Kristensen, Klaus Kevin; Friberg, Nikolai (Journal article; Peer reviewed, 2014)
      We evaluated the restoration of physical habitats and its influence on macroinvertebrate community structure in 18 Danish lowland streams comprising six restored streams, six streams with little physical alteration and six ...
    • Recent advances in understanding and measurement of mercury in the environment: Terrestrial Hg cycling 

      Bishop, Kevin; Shanley, James B.; Riscassi, Ami; de Wit, Heleen; Eklöf, Karin; Meng, Bo; Mitchell, Carl; Osterwalder, Stefan; Schuster, Paul F.; Webster, Jackson; Zhu, Wei (Peer reviewed; Journal article, 2020)
      This review documents recent advances in terrestrial mercury cycling. Terrestrial mercury (Hg) research has matured in some areas, and is developing rapidly in others. We summarize the state of the science circa 2010 as a ...
    • A recipe for plastic: expert insights on plastic additives in the marine environment 

      Maes, Thomas; Preston-Whyte, Fiona; Lavelle, Stephanie; Gomiero, Alessio; Booth, Andy; Belzunce-Segarra, Maria Jesus; Bellas, Juan; Brooks, Steven; Bakir, Adil; Devriese, Lisa; Pham, Christopher K.; De Witte, Bavo P. (Peer reviewed; Journal article, 2023)
      The production and consumption of plastic products had been steadily increasing over the years, leading to more plastic waste entering the environment. Plastic pollution is ubiquitous and comes in many types and forms. To ...
    • Recolonization and recovery of an Arctic benthic community subject to mine-tailings deposits 

      Trannum, Hilde C; Pedersen, Kristine B.; Renaud, Paul E; Christensen, Guttorm N.; Evenset, Anita (Peer reviewed; Journal article, 2023)
      Deposition of large volumes of mine tailings takes place in several Norwegian fjords, but the impacts on marine ecosystems have received relatively little scientific attention. At a 40 + −year old tailing deposition area ...
    • Recovery of benthic algal assemblages from acidification: how long does it take, and is there a link to eutrophication? 

      Schneider, Susanne Claudia; Oulehle, Filip; Krám, Pavel; Hruška, Jakub (Journal article; Peer reviewed, 2018)
      Acidification has adversely affected freshwater ecosystems in many areas, and recovery from acidification is often interrupted by acidic events. We lack detailed information about how benthic algae react to short-term ...
    • The recovery of European freshwater biodiversity has come to a halt 

      Haase, Peter; Bowler, Diana Elizabeth; Baker, Nathan J.; Bonada, Núria; Domisch, Sami; Marquez, Jaime R. Garcia Marquez; Heino, Jani; Hering, Daniel; Jähnig, Sonja C.; Schmidt-Kloiber, Astrid; Stubbington, Rachel; Altermatt, Florian; Álvarez-Cabria, Mario; Amatulli, Giuseppe; Angeler, David G.; Archambaud-Suard, Gaït; Jorrín, Iñaki Arrate; Aspin, Thomas; Azpiroz, Iker; Bañares, Iñaki; Ortiz, José Barquín; Bodin, Christian L.; Bonacina, Luca; Bottarin, Roberta; Cañedo-Argüelles, Miguel; Csabai, Zoltán; Datry, Thibault; De Eyto, Elvira; Dohet, Alain; Dörflinger, Gerald; Drohan, Emma; Eikland, Knut Andreas; England, Judy; Eriksen, Tor E.; Evtimova, Vesela; Feio, Maria J.; Ferréol, Martial; Floury, Mathieu; Forcellini, Maxence; Forio, Marie Anne Eurie; Fornaroli, Riccardo; Friberg, Nikolai; Fruget, Jean-François; Georgieva, Galia; Goethals, Peter; Graça, Manuel A. S.; Graf, Wolfram; House, Andy; Huttunen, Kaisa-Leena; Jensen, Thomas Correll; Pilotto, Francesca; Rasmussen, Jes Jessen; Sandin, Leonard; Velle, Gaute (Peer reviewed; Journal article, 2023)
      Owing to a long history of anthropogenic pressures, freshwater ecosystems are among the most vulnerable to biodiversity loss1. Mitigation measures, including wastewater treatment and hydromorphological restoration, have ...
    • Red sea urchins (Echinus esculentus) and water flow influence epiphytic macroalgae density 

      Bekkby, Trine; Angeltveit, Gro; Gundersen, Hege; Tveiten, Lise Ann; Norderhaug, Kjell Magnus (Journal article; Peer reviewed, 2015)
      The importance of forests of the kelp Laminaria hyperborea along the Norwegian coast is related to the three dimensional structure that they create together with the associated macroalgae. Today, kelp forests have recovered ...
    • Redegjørelse for miljøtilstanden i Grandefjæra ved Ørland flystasjon 

      Øxnevad, Sigurd; Trannum, Hilde Cecilie; Næss, Rita Yvonne; Green, Norman Whitaker; Moy, Siri Røang; Borgersen, Gunhild; Gitmark, Janne Kim; Håvardstun, Jarle (NIVA-rapport;7221, Research report, 2017)
      Denne undersøkelsen har hatt som mål å gi ny kunnskap om artsmangfoldet og den økologiske tilstanden i Grandefjæra samt beskrive eventuelle påvirkninger fra avrenning fra flyplassen på artsmangfoldet og vannkvaliteten i ...
    • Reduced Acid Deposition Leads to a New Start for Brown Trout (Salmo trutta) in an Acidified Lake in Southern Norway 

      Lund, Espen; Garmo, Øyvind A; de Wit, Heleen A; Kristensen, Torstein; Hawley, Kate L; Wright, Richard F (Journal article; Peer reviewed, 2018)
      Acid deposition has led to acidification and loss of fish populations in thousands of lakes and streams in Norway. Since the peak in the late 1970s, acid deposition has been greatly reduced and acidified surface waters ...
    • Reductive and Oxidative UV Degradation of PFAS - Status, Needs and Future Perspectives 

      Umar, Muhammad (Peer reviewed; Journal article, 2021)
      Perfluoroalkyl and polyfluoroalkyl substances (PFASs) consist of a group of environmentally persistent, toxic and bio-accumulative organic compounds of industrial origin that are widely present in water and wastewater. ...
    • Reetablering av laks og sjøørret i Svorka 

      Bergan, Morten Andre (NIVA-rapport;6630, Research report, 2014)
      Det skal etableres en plan for reetablering av laks og sjøørret i Svorka, et sidevassdrag til Orkla ved Svorkmo, Orkdal kommune, Sør Trøndelag. Vassdraget har hatt historisk oppgang av laks og sjøørret, med en anadrom ...
    • Reevaluating the role of organic matter sources for coastal eutrophication, oligotrophication and ecosystem health 

      Deininger, Anne; Frigstad, Helene (Journal article; Peer reviewed, 2019)
      Organic matter (OM) in aquatic systems is either produced internally (autochthonous OM) or delivered from the terrestrial environment (ter-OM). For eutrophication (or the reverse – oligotrophication), the amount of ...