Browsing Publikasjoner fra Cristin - NIVA by Issue Date
Now showing items 21-40 of 2295
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Miljøgifter i fisk og zooplankton i Mjøsa, 2012
(NIVA-rapport;6500, Research report, 2013)Konsentrasjonen av bromerte flammehemmere (PBDE, HBCDD), PCB, DDT med nebrytningsprodukter, dioksiner, klorerte parafiner, perfluorerte stoffer og kvikksølv er analysert i prøver av fisk (ørret, lågåsild og krøkle) og ... -
Environmental harm assessment of a wastewater discharge from Hammerfest LNG: A study with biomarkers in mussels (Mytilus sp.) and Atlantic cod (Gadus morhua)
(Journal article; Peer reviewed, 2013)Biologically treated wastewater (WW) from the Hammerfest LNG (liquefied natural gas) plant is discharged to the sea. A study using biomarkers in mussels and Atlantic cod was performed to examine whether this discharge meets ... -
Juncus bulbosus nuisance growth in oligotrophic freshwater ecosystems: Different triggers for the same phenomenon in rivers and lakes?
(Journal article; Peer reviewed, 2013)Since the 1980s nuisance growth of the aquatic macrophyte Juncus bulbosus has been observed in an increasing number of rivers and lakes in Europe. Freshwater acidification, lake liming, as well as the impact of hydropower ... -
Temperature acclimation and heat tolerance of photosynthesis in Norwegian Saccharina latissima (Laminariales, Phaeophyceae)
(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 ... -
Environmental Optima for Seven Strains of Pseudochattonella (Dictyochophyceae, Heterokonta)
(Journal article; Peer reviewed, 2013)The ichthyotoxic flagellate Pseudochattonella has formed recurrent blooms in the North Sea, Skagerrak and Kattegat since 1998. Five strains of Pseudochattonella farcimen and two strains of P. verruculosa were examined in ... -
Sukkertarens naturlige utbredelse – modellering av referansetilstand for Norsk naturindeks
(Journal article; Peer reviewed, 2013)Sukkertare (Saccharina latissima) er en viktig indikatorart i Norsk naturindeks, en indeks som skal måle utviklingen av biologisk mangfold i Norge. Dagens indikator er en semi-kvantitativ indeks basert på ekspertvurdering ... -
Klassifisering av miljøtilstand i industrifjorder – hvor godt samsvarer miljøgifter og bløtbunnsfauna?
(NIVA-rapport;6594, Research report, 2013)Rapporten gir en oversikt over klassifisering av miljøtilstand i henhold til Vannforskriften for norske industrifjorder med betydelig forurensning av miljøgifter i bunnsedimentene. I rapporten sammenlignes kjemisk tilstand ... -
Vassdragskalking i Aust-Agder, Hedmark, Hordaland, Rogaland,Sogn og Fjordane og Vest-Agder. Datarapport - Vannkjemi 2012
(NIVA-rapport;6468, Research report, 2013)Norsk institutt for vannforskning (NIVA) har bidratt i utførelsen av kjemiske analyser av vannprøver tatt oppstrøms og nedstøms kalking i forsuringspåvirkede elver og vassdrag i Aust-Agder, Hedmark, Hordaland, Rogaland, ... -
From Green to Red: Horizontal Gene Transfer of the Phycoerythrin Gene Cluster between Planktothrix Strains
(Journal article; Peer reviewed, 2013)Horizontal gene transfer is common in cyanobacteria, and transfer of large gene clusters may lead to acquisition of new functions and conceivably niche adaption. In the present study, we demonstrate that horizontal gene ... -
Transgenic (cyp19a1b-GFP) zebrafish embryos as a tool for assessing combined effects of oestrogenic chemicals
(Journal article; Peer reviewed, 2013)Endocrine disrupting chemicals and especially oestrogen receptor (ER) agonists have been extensively studied over the years due to their potential effects on sexual development and reproduction in vertebrates, notably fish. ... -
Top-down versus bottom-up project appraisal processes, and external review. Evidence from Norway and China
(Peer reviewed; Journal article, 2013)Project appraisal plays an important role in choosing the right project and is crucial for the success of public investment projects. Different factors may affect the choice of appraisal process in different countries. By ... -
Biofilmdannelse i VAVs ledningsnett med nye Oset vannbehandlingsanlegg
(Journal article; Peer reviewed, 2013)Det ble i 2012 gjennomført kvalitative og kvantitative målinger av biofilmdannelse i råvann, filtrert vann, rentvann og nettvann i Osets forsyningsområde i Oslo. Målet med biofilmmålingene var å undersøke/dokumentere ... -
Ecological status assessment of European lakes: a comparison of metrics for phytoplankton, macrophytes, benthic invertebrates and fish
(Journal article; Peer reviewed, 2013)Data on phytoplankton, macrophytes, benthic invertebrates and fish from more than 2000 lakes in 22 European countries were used to develop and test metrics for assessing the ecological status of European lakes as required ... -
Lack of sea urchin settlement may explain kelp forest recovery in overgrazed areas in Norway
(Journal article; Peer reviewed, 2013)In this study, we investigated whether failure of sea urchin recruitment can explain an ongoing phase shift from overgrazed, barren grounds to kelp forests along the coast of mid- Norway. Settlement of sea urchins on ... -
A water level drawdown index for aquatic macrophytes in Nordic lakes
(Journal article; Peer reviewed, 2013)Many northern lakes are regulated to enhance hydropower production and flood protection. This bears hydromorphological pressures which are important factors causing lowered ecological status. Water level fluctuation triggers ... -
The distribution of the Mussel Mytilus species along the Norwegian coast
(Journal article; Peer reviewed, 2013)Mussels (Mytilus spp.) are used frequently in biological effects studies and biomonitoring programs either as transplanted groups or native populations. However, as a result of the similarities in the external morphology ... -
Implications of elevated CO2 on pelagic carbon fluxes in an Arctic mesocosm study - an elemental mass balance approach
(Journal article; Peer reviewed, 2013)Recent studies on the impacts of ocean acidification on pelagic communities have identified changes in carbon to nutrient dynamics with related shifts in elemental stoichiometry. In principle, mesocosm experiments provide ... -
Store innsjøer i Norge: Kan eksisterende data brukes til klassifisering av økologisk og kjemisk tilstand i hht. vannforskriften?
(NIVA-rapport;6605, Research report, 2013)Målet med dette prosjektet var å lage en oversikt over metadata som finnes for de store innsjøene i Norge og vurdere om dataene er tilstrekkelig til å kunne klassifisere økologisk og kjemisk tilstand. Metadata for vannkjemi, ... -
Pesticide risk assessment and management in a globally changing world—report from a European interdisciplinary workshop
(Journal article; Peer reviewed, 2013) -
Nuisance growth of Juncus bulbosus: the roles of genetics and environmental drivers tested in a large-scale survey
(Journal article; Peer reviewed, 2013)1. Invasive species can transform aquatic ecosystems, and the nuisance growth of the freshwater macrophyte Juncus bulbosus has become a problem in many lakes and rivers in northern Europe. It affects biodiversity strongly ...