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Re-calibration of the MAGIC model with data from the National Lake Survey 2019. Results from phase 2
(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?
(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 ... -
REBUS - Regnskap- og BudsjettSystem for forurensende tilførsler til vassdrag og fjorder. Del A: Prosjektsammendrag og vannfaglige tema
(NIVA-rapport;1355, Research report, 1981)Det er laget et generelt, EDB-basert regnskap- og budsjettsystem for forurensningstilførsler til vannresipienter. Systemet gir mulighet for rapportering på valgbare hierarkiske nivåer etter både administrative linjer ... -
REBUS - Regnskap. og BudsjettSystem for forurensende tilførsler til vassdrag og fjorder. Del B. EDB-systemet: Brukerbeskrivelse og teknisk dokumentasjon
(NIVA-rapport;1356, Research report, 1981)Det er laget et generelt, EDB-basert regnskap- og budsjettsystem for forurensningstilførsler til vannresipienter. Systemet gir mulighet for rapportering på valgbare hierarkiske nivåer etter både administrative linjer ... -
Recent advances in understanding and measurement of mercury in the environment: Terrestrial Hg cycling
(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
(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
(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 ... -
Recommended Liming Strategies for Salmon Rivers in Nova Scotia, Canada
(NIVA-rapport;4434, Research report, 2001)The Southern Upland of Nova Scotia is acidified due the extreme sensitive ecosystems combined with being down-wind from large sulphur emission sites in southern Canada and northern US. Atlantic Salmon populations have ... -
Reconciling the rule of law with adaptive regulation of marine ecosystems – Challenges and opportunities for the Arctic and beyond
(Peer reviewed; Journal article, 2019) -
Recovery from acidification of invertebrate fauna at ICP Water sites in Europe and North America (ICP Waters report 75/2004)
(NIVA-rapport;4864, Research report, 2004-08)The report presents update results for trends in biology after 2000. The results confirm the results from the ICP Waters report in 2000 and shows continued improvement in biological recovery from regions with new data. The ... -
Recovery of benthic algal assemblages from acidification: how long does it take, and is there a link to eutrophication?
(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
(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
(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
(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 ... -
Redegjørelse for resultatene av en kjemisk undersøkelse av vannet i Mandalselvas nedbørfelt
(NIVA-rapport;0119, Research report, 1964) -
Reduced Acid Deposition Leads to a New Start for Brown Trout (Salmo trutta) in an Acidified Lake in Southern Norway
(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
(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. ... -
Redusert vannføring i Årdalselva ved flytting av Tya kraftverk. Konsekvenser for forurensningssituasjonen
(NIVA-rapport;2815, Research report, 1992)På grunnlag av nye og tidligere innsamlete data om utslipp til, og vannkvalitet og biologiske forhold i Årdalsvassdraget er det gitt en vurdering av konsekvenser av redusert vannføring for forurensningssituasjonen i ... -
Reetablering av biologisk mangfold i Oslos urbane sjøområder
(NIVA-rapport;7426, Research report, 2019)Bymiljøetaten i Oslo kommune ønsket en idéfaseutredning av aktuelle områder, mulige tiltak, og mulige konsekvenser av reetablering og tiltak for å øke marinbiologisk mangfold i byens urbane kystområder fra Frognerkilen til ... -
Reetablering av laks og sjøørret i Svorka
(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 ...