Browsing NIVA Open Access Archive by Title
Now showing items 505-524 of 8166
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Biodegradation of Esters and Olefins in Drilling Mud Deposited on Arctic soft-bottom communities in a low-temperature Mesocosm
(NIVA-rapport;3760, Research report, 1997)Discharge of chemicals from off-shore drilling operations represent a matter of concern for the oil industry and pollution control authorities world-wide. As the industry expands towards higher latitudes and greater depths, ... -
Biodegradation of selected offshore chemicals
(NIVA-rapport;7218, Research report, 2017)A review of biodegradation data for specific oil field chemicals and chemical groups were performed in order to evaluate if the current categorisation of these were appropriate based on the biodegradation properties. Data ... -
Biodegradation of Ultidril Base Fluid and Drilling Mud on Cuttings Deposited in Benthic Chambers
(NIVA-rapport;3321, Research report, 1995)Synthetic drilling fluids have replaced much of the mineral oil previously used in mud systems for offshore drilling operations The cmemicals are entered into the North Sea environment attached to bore hole cuttings, which ... -
Biodiversity in freshwaters: temporal trends and response to water chemistry (ICP Waters report 114/2013)
(NIVA-rapport;6580, Research report, 2013-10)This report describes trends in biological diversity of benthic invertebrates from acid-sensitive lakes and rivers sampled between 1982 and 2011 in the Czech Republic, Germany, Latvia, Norway, Sweden and the UK. The results ... -
Biodiversity of macro-invertebrates in acid-sensitive waters: trends and relations to water chemistry and climate. ICP Waters report 127/2016
(NIVA-rapport;7077, Research report, 2016-09)This is a study of the international impact of acid emission reductions on vulnerable freshwater biodiversity of benthic macroinvertebrates. In order to properly attribute impacts it is necessary to also incorporate the ... -
Biodiversity patterns of Arctic diatom assemblages in lakes and streams: Current reference conditions and historical context for biomonitoring
(Peer reviewed; Journal article, 2020)1.Comprehensive assessments of contemporary diatom distributions across the Arctic remain scarce. Furthermore, studies tracking species compositional differences across space and time, as well as diatom responses to climate ... -
Bioeconomic Modelling of Coastal Cod and Kelp Forest Interactions: Co-benefits of Habitat Services, Fisheries and Carbon Sinks
(Peer reviewed; Journal article, 2020)Ecosystem-based fisheries management seeks to expand upon the traditional one-stock fisheries management measures by internalizing the effects of fishing on marine ecosystems, and accounting for biological interactions ... -
Biofilm og avleiringer i gammel drikkevannsledning i Oslo. Karakterisering og dannelsesbetingelser
(NIVA-rapport;4464, Research report, 2001)For å belyse mikrobiologiske forhold knyttet til slamdannelse og begroing i distribusjonssystemet for drikkevann. ble det oppsamlet spyleslam fra to spylinger med to måneders mellomrom av et ca 100 meter langt rørstrekk i ... -
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 ... -
Biogeochemical consequences of an oxygenated intrusion into an anoxic fjord
(Journal article; Peer reviewed, 2014)Background: This paper is based on the studies of the biogeochemical structure of the water column in the anoxic Fjord Hunnbunn (south-eastern Norway) performed in 2009, 2011 and 2012. This Fjord is an enclosed basin of ... -
Biogeochemical structure of the Laptev Sea in 2015-2020 associated with the River Lena plume
(Peer reviewed; Journal article, 2023)The discharge of rivers and the subsequent dispersion of their plumes play a pivotal role in the biogeochemical cycling of the Arctic Ocean. Based on the data collected during annual transects conducted in the autumn period ... -
BIOKLASS - forprosjekt Vurdering og utprøving av metoder for biologisk klassifisering av økologisk status i limnisk og marint miljø
(NIVA-rapport;4723, Research report, 2003)Rapporten gir en oppsummering av det interne FoU-prosjektet BIOKLASS. BIOKLASS har vært forprosjektet til det strategiske instituttprogrammet BIOKLASS SIP. Forprosjektet BIOKLASS ble initiert i sammenheng med innføring av ... -
BIOKLASS - Klassifisering av økologiske status i norske vannforekomster. Forslag til aktuelle kriterier og foreløpige grenseverdier mellom god og moderat økologisk status for utvalgte elementer og påvirkninger
(NIVA-rapport;4860, Research report, 2004)Rapporten gir oversikt over aktuelle kriterier for klassifisering av økologisk status i norske elver, innsjøer og kystområder, for utvalgte biologiske elementer og påvirkninger, samt forslag til foreløpige grenseverdier ... -
Biological and Chemical Investigation at the Island Sotra in Hordaland County, Norway
(NIVA-rapport;0921, Research report, 1977) -
Biological and chemical investigations at the Island Sotra in Hordaland country, Norway
(NIVA-rapport;0913, Research report, 1977) -
Biological effects monitoring of a thermomechanical cleaned cuttings discharge from the Johan Sverdrup installation
(NIVA-rapport;7768-2022, Research report, 2022)The following study describes an integrated biological effects monitoring programme using field transplanted mussels to determine the potential effects of thermomechanical cleaned cuttings (TCC) discharged from the Johan ... -
Biological effects monitoring of the discharge water from the Ormen Lange gas facility, Norway
(NIVA-rapport;5747, Research report, 2009)The mussel, Mytilus edulis has been used to assess the biological effects of produced water (PW) discharged from the Ormen Lange gas processing plant on the West coast of Norway. An integrated monitoring approach was ... -
Biological fixation of metals in mine drainage and ore wastes
(NIVA-rapport;2794, Research report, 1992)Acidic and metal-polluted drainage water from abandoned pyrite mines affect aquatic life in several resipient watercourses in Norway. A possible role of sulfate-reducing bacteria (SRB) in treatment of acidic mine water is ... -
Biological intercalibration. Invertebrates 1915 - ICP Waters report 124/2015
(NIVA-rapport;6940, Research report, 2015)Six European laboratories participated in the 19th ICP Waters biological intercalibration, which took place in 2015. The laboratories identified a very high portion of the individuals in the test samples, > 95% of the total ... -
Biological intercalibration: Invertebrates 0905 (ICP Waters report 81/2005)
(NIVA-rapport;5067, Research report, 2005-09)The 9th intercalibration of invertebrates in the ICP Waters programme had contribution from 4 laboratories. Most of the laboratories identified a high portion of the individuals in the test samples, usually > 90% of the ...