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Radiation effects and ecological processes in a freshwater microcosm
(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
(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
(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?
(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 ... -
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 ... -
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 ... -
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 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 ... -
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. ... -
Reevaluating the role of organic matter sources for coastal eutrophication, oligotrophication and ecosystem health
(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 ... -
Regrowth of kelp after removal of sea urchins (Strongylocentrotus droebachiensis)
(NIVA-rapport;7431, Research report, 2019)With few natural predators, green sea urchins (Strongylocentrotus droebachiensis) have grown in numbers, grazed down large kelp forest areas in Northern Norway into urchin barrens. NIVA deployed three underwater cages ... -
Reker i Indre Oslofjord - overvåking i perioden 2000-2014
(Journal article; Peer reviewed, 2016)Her presenteres resultatene av undersøkelser av forekomst av reker på 7 stasjoner i Indre Oslofjord og Drøbaksundet over en periode på 15 år. I alt ble det observert 15 ulike rekearter. Den mest hyppig observerte arten var ... -
Relating environmental pressures to littoral biological water quality indicators in Western Balkan lakes: Can we fill the largest gaps?
(Peer reviewed; Journal article, 2021)Along six transects in each of six lakes across the Western Balkans, we collected data for three groups of littoral biological water quality indicators: epilithic diatoms, macrophytes, and benthic invertebrates. We assessed ... -
Relative impacts of multiple human stressors in estuaries and coastal waters in the North Sea–Baltic Sea transition zone
(Peer reviewed; Journal article, 2020)The objectives of this study are 1) to map the potential cumulative impacts of multiple human activities and stressors on the ecosystems in the transition zone between the North Sea and Baltic Sea, for Danish waters 2) to ... -
Release of chitobiase as an indicator of potential molting disruption in juvenile Daphnia magna exposed to the ecdysone receptor agonist 20-hydroxyecdysone
(Journal article; Peer reviewed, 2017)During arthropod molting, the old exoskeleton is degraded and recycled by the molting fluid. Chitobiase, a major chitinolytic enzyme in the molting fluid, has been widely used as a biomarker to indicate endocrine disruption ...