• A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic 

      Nygren, Arne; Parapar, Julio; Pons, Joan; Meißner, Karin; Bakken, Torkild; Kongsrud, Jon Anders; Oug, Eivind; Gaeva, Daria; Sikorski, Andrey; Johansen, Robert André; Hutchings, Pat Ann; Lavesque, Nicolas; Capa, Maria (Journal article; Peer reviewed, 2018)
      We investigate mitochondrial (COI, 16S rDNA) and nuclear (ITS2, 28S rDNA) genetic structure of North East Atlantic lineages of Terebellides, a genus of sedentary annelids mainly inhabiting continental shelf and slope ...
    • Alien plants, animals, fungi and algae in Norway: an inventory of neobiota 

      Sandvik, Hanno; Dolmen, Dag; Elven, Reidar; Falkenhaug, Tone; Forsgren, Elisabet; Hansen, Haakon; Hassel, Kristian; Husa, Vivian; Kjærstad, Gaute; Ødegaard, Frode; Pedersen, Hans Christian; Solheim, Halvor; Stokke, Bård Gunnar; Åsen, Per Arvid; Åström, Sandra Charlotte Helene; Brandrud, Tor Erik; Elven, Hallvard; Endrestøl, Anders; Finstad, Anders Gravbrøt; Fredriksen, Stein; Gammelmo, Øivind; Gjershaug, Jan Ove; Gulliksen, Bjørn; Hamnes, Inger Sofie; Hatteland, Bjørn Arild; Hegre, Hanne; Hesthagen, Trygve H.; Jelmert, Anders; Jensen, Thomas Correll; Johnsen, Stein Ivar; Karlsbakk, Egil; Magnusson, Christer; Nedreaas, Kjell Harald; Nordén, Björn; Oug, Eivind; Pedersen, Oddvar; Pedersen, Per Anker; Sjøtun, Kjersti; Skei, Jon Kristian; Solstad, Heidi; Sundheim, Leif; Swenson, Jon; Syvertsen, Per Ole; Talgø, Venche; Vandvik, Vigdis; Westergaard, Kristine Bakke; Wienerroither, Rupert; Ytrehus, Bjørnar; Hilmo, Olga; Henriksen, Snorre; Gederaas, Lisbeth (Journal article; Peer reviewed, 2019)
      We present the results of an inventory and status assessment of alien species in Norway. The inventory covered all known multicellular neobiota, 2496 in total, 1039 of which were classified as naturalised. The latter ...
    • Alien species in Norway: results from quantitative ecological impact assessments 

      Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Peer reviewed, 2020)
      1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ...
    • Can benthic foraminifera serve as proxies for changes in benthic macrofaunal community structure? Implications for the definition of reference conditions 

      Bouchet, Vincent MP; Telford, Richard J; Rygg, Brage; Oug, Eivind; Alve, Elisabeth (Journal article; Peer reviewed, 2018)
      Benthic macrofauna is one of the most widely used biological groups to assess the ecological status of marine systems. Lately, attention has been paid to similar use of benthic foraminifera. In this study, distribution ...
    • Epifaunal and infaunal responses to submarine mine tailings in a Norwegian fjord 

      Trannum, Hilde C; Borgersen, Gunhild; Oug, Eivind; Glette, Tormod; Brooks, Lucy; Ramirez-Llodra, Eva (Journal article; Peer reviewed, 2019)
      Disposal of mine tailings in marine shallow water ecosystems represents an environmental challenge, and the present paper reports results from a field study in Frænfjorden, Norway, which is subject to such disposal. ...
    • Klassifisering av miljøtilstand i industrifjorder – hvor godt samsvarer miljøgifter og bløtbunnsfauna? 

      Oug, Eivind; Ruus, Anders; Norling, Karl; Bakke, Torgeir Heggelund (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 ...
    • Knowledge status and gaps for the North Sea – focusing on discharges. 

      Folkestad, Are; Nygaard, Kari; Molvær, Jarle; Oug, Eivind; Kaste, Øyvind; Kroglund, Tone; Wehde, Henning; Skaare, Bent Barmand; Jantsch, Tor Gunnar; Selvik, John Rune; Jørgensen, Nina Marit; Larsen, Lars Henrik (NIVA-rapport;5580, Research report, 2008)
      The Norwegian government will develop a management plan for the Norwegian sector of the North Sea. Mapping of the data requirement related to the interaction between land, coast and ocean and identification of specially ...
    • Langtidsovervåking av miljøkvaliteten i kystområdene av Norge. Kystovervåkingsprogrammet. Årsrapport for 2004 

      Moy, Frithjof; Aure, Jan; Dahl, Einar; Falkenhaug, Tone; Green, Norman; Johnsen, Torbjørn; Lømsland, Evy; Magnusson, Jan; Omli, Lena; Olsgaard, Frode; Oug, Eivind; Pedersen, Are; Rygg, Brage; Walday, Mats (NIVA-rapport;5026, Research report, 2005)
      Rapporten beskriver miljøkvaliteten i kystområdene av Sør-Norge i 2004, med spesiell fokus på tilstand og utvikling i næringssalttilførsler, vannkvalitet og det biologiske mangfoldet i plankton-, bløt- og hardbunns-samfunn ...
    • Mapping of marine benthic invertebrates in the Oslofjord and the Skagerrak: sampling data of museum collections from 1950–1955 and from recent investigations 

      Oug, Eivind; Christiansen, Marit Ellen; Dobbe, Kristine; Rønning, Ann-Helen; Bakken, Torkild; Kongsrud, Jon Anders (Journal article, 2015)
      Data from large sampling programmes for the mapping of marine invertebrates in the Oslofjord, Norway, and the Skagerrak, spanning more than six decades, are compiled and digitized to provide easy access in modern data ...
    • Norsk naturindeks. Statistiske beregningsmetoder for utnyttelse av vanndirektivdata i naturindeksen – ferskvannsindeksen vannplanter (TIc) som eksempel 

      Gundersen, Hege; Mjelde, Marit; Schartau, Ann Kristin; Oug, Eivind (NIVA-rapport;7324, Research report, 2018)
      Arbeidet i dette prosjektet har vist hvordan ulike metoder for beregning av tilstand og referansetilstand kan bli brukt for å øke den geografiske representativiteten for punktmålte indikatorer i naturindeksen. Ferskvanns ...
    • Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp. 

      Bakken, Torkild; Oug, Eivind; Kongsrud, Jon Anders (Journal article; Peer reviewed, 2014)
      Until recent years, only a few scalibregmatid species have been known from the Nordic Seas, largely from shelf and coastal waters. Access to a large collection from deep areas has made it possible to provide more knowledge ...
    • Oppdatert risikovurdering av sedimenter og overvåking med vektpå PAH av det nære sjøområdet til Elkem i Kristiansand i 2013 

      Næs, Kristoffer; Håvardstun, Jarle; Oug, Eivind; Beyer, Jonny; Bakke, Torgeir Heggelund; Heiaas, Harald; Lillicrap, Adam David; Allan, Ian (NIVA-rapport;6664, Research report, 2014)
      Bedriftene Elkem Carbon AS og Elkem Solar AS gjennomfører et overvåkingsprogram i det bedriftsnære sjøområdet i Kristiansandsfjorden. Programmet supplerer og er koplet opp mot myndighetenes generelle overvåking av ...
    • Original specimens and type localities of early described polychaete species (Annelida) from Norway, with particular attention to species described by O.F. Müller and M. Sars 

      Oug, Eivind; Bakken, Torkild; Kongsrud, Jon Anders (Journal article; Peer reviewed, 2014)
      Early descriptions of species from Norwegian waters are reviewed, with a focus on the basic requirements for reassessing their characteristics, in particular, by clarifying the status of the original material and locating ...
    • Overvåking av sjøområdene i Grimstad. Resipientundersøkelser i Groosefjorden og Homborsundfjorden i 2015 

      Oug, Eivind; Håvardstun, Jarle; Kroglund, Tone; Gitmark, Janne Kim; Trannum, Hilde Cecilie; Antonsen, Medyan (NIVA-rapport;6939, Research report, 2015)
      Groosefjorden og Homborsundfjorden i Grimstad kommune er resipienter for utslipp av avløpsvann fra kommunale renseanlegg. Foreliggende undersøkelse ble gjennomført i 2015 for å dokumentere tilstanden i resipientene og ...
    • Polychaetes from Jan Mayen (Annelida, Polychaeta) 

      Bakken, Torkild; Kongsrud, Jon Anders; Oug, Eivind; Cochrane, Sabine; Moen, Toril Loennechen; Solbakken, Beata Elisabeth Borowiec (Journal article; Peer reviewed, 2010)
      A thorough literature review has been undertaken to establish the first complete account of polychaetes recorded from the area around the volcanic island of Jan Mayen. The annotated checklist lists 121 species-level taxa, ...
    • Riverine impacts on benthic biodiversity and functional traits: A comparison of two sub-Arctic fjords 

      McGovern, Maeve; Poste, Amanda E; Oug, Eivind; Renaud, Paul E; Trannum, Hilde Cecilie (Peer reviewed; Journal article, 2020)
      Climate change is leading to increases in freshwater discharge to coastal environments with implications for benthic community structure and functioning. Freshwater inputs create strong environmental gradients, which ...
    • Sampling protocol for monitoring of non-indigenous species in selected Danish harbours 

      Andersen, Jesper Harbo; Brink, Mathias; Kallenbach, Emilie; Hesselsøe, Martin; Knudsen, Steen W.; Støttrup, Josianne G.; Møller, Peter Rask; Eikrem, Wenche; Fagerli, Camilla With; Oug, Eivind (NIVA-rapport;7175, Research report, 2017)
      The sampling protocol is a product of the MONIS 4 project, or in full “Monitoring of non-indigenous species in selected Danish harbours”. Sampling will take place using a broad range of methods, both conventional sampling ...
    • Soft bottom benthos and responses to climate variation and eutrophication in Skagerrak 

      Trannum, Hilde Cecilie; Gundersen, Hege; Oug, Eivind; Rygg, Brage; Norderhaug, Kjell Magnus (Journal article; Peer reviewed, 2018)
      Skagerrak has been subject to several anthropogenic influences over the past decades, with climate change and eutrophication being considered as the most serious and large-scale disturbance factors. The present study reports ...
    • Structural and functional changes of soft-bottom ecosystems in northern fjords invaded by the red king crab (Paralithodes camtschaticus) 

      Oug, Eivind; Sundet, Jan Henry; Cochrane, Sabine K.J. (Journal article; Peer reviewed, 2018)
      The red king crab invaded Norwegian coastal waters in the early 1990s after having been introduced from the northern Pacific to the Russian Barents Sea coast. The crab stock increased rapidly in NE northern Norway in the ...
    • Tiltaksrettet overvåking av Karmsundet i henhold til vannforskriften. Overvåking for FMC Biopolymer AS. 

      Håvardstun, Jarle; Oug, Eivind; Borgersen, Gunhild (NIVA-rapport;7050, Research report, 2016)
      NIVA har gjennomført tiltaksrettet overvåking i Karmsundet for FMC Biopolymer AS. Overvåkingsprogrammet er utført i henhold til vannforskriften på bakgrunn av hvilke stoffer bedriften har utslipp av til vannforekomsten. ...