• Non-lunge feeding behaviour of humpback whales associated with fishing boats in Norway 

      Iwata, Takashi; Aoki, Kagari; Miller, Patrick J. O.; Biuw, Martin; Williamson, Michael J.; Sato, Katsufumi (Peer reviewed; Journal article, 2023)
      Top marine predators, such as odontocetes, pinnipeds, and seabirds, are known to forage around fishing boats as fishermen aggregate and/or discard their prey. Recently, incidents of humpback whales interacting with fishing ...
    • Nonlinear crosstalk in broadband multi-channel echosounders 

      Khodabandeloo, Babak; Ona, Egil; Macaulay, Gavin; Korneliussen, Rolf (Peer reviewed; Journal article, 2021)
      Distortion of acoustic wave caused by nonlinear propagation transfers acoustic energy into higher harmonics of the transmitted signal. When operating several broadband echosounders with non-overlapping frequency bands to ...
    • Non‐linearity in interspecific interactions in response to climate change: cod and haddock as an example 

      Durant, Joel Marcel; Ono, Kotaro; Stenseth, Nils Christian; Langangen, Øystein (Peer reviewed; Journal article, 2020)
      Climate change has profound ecological effects, yet our understanding of how trophic interactions among species are affected by climate change is still patchy. The sympatric Atlantic haddock and cod are co‐occurring across ...
    • Nordic Blue Carbon Ecosystems: Status and Outlook 

      Krause-Jensen, Dorte; Gundersen, Hege; Björk, Mats; Gullström, Martin; Dahl, Martin; Asplund, Maria E.; Boström, Christoffer; Holmer, Marianne; Banta, Gary T.; Graversen, Anna Elizabeth Løvgren; Pedersen, Morten Foldager; Bekkby, Trine; Frigstad, Helene; Skjellum, Solrun Figenschau; Thormar, Jonas; Gyldenkærne, Steen; Howard, Jennifer; Pidgeon, Emily; Ragnarsdóttir, Sunna Björk; Mols-Mortensen, Agnes; Hancke, Kasper (Peer reviewed; Journal article, 2022)
      Vegetated coastal and marine habitats in the Nordic region include salt marshes, eelgrass meadows and, in particular, brown macroalgae (kelp forests and rockweed beds). Such habitats contribute to storage of organic carbon ...
    • Nordic Seas Heat Loss, Atlantic Inflow, and Arctic Sea Ice cover over the last century 

      Smedsrud, Lars Henrik; Muilwijk, Morven; Eldevik, Tor; Årthun, Marius; Brakstad, Ailin; Madonna, Erica; Lauvset, Siv Kari; Spensberger, Clemens; Born, Andreas; Drange, Helge; Jeansson, Emil; Li, Camille; Olsen, Are; Skagseth, Øystein; Slater, Donald; Straneo, Fiammetta; Våge, Kjetil (Peer reviewed; Journal article, 2021)
      Poleward ocean heat transport is a key process in the earth system. We detail and review the northward Atlantic Water (AW) flow, Arctic Ocean heat transport, and heat loss to the atmosphere since 1900 in relation to sea ...
    • NorKyst800: versjoner og arkiver — Oversikt over versjoner og arkiver av NorKyst800 som hittil er brukt for modellering av det fysiske miljø i norsk kystsone - med fokus på implikasjoner for lakselusmodellen til Havforskningsinstituttet 

      Albretsen, Jon; Sandvik, Anne Dagrun; Asplin, Lars; Lien, Vidar Surén; Skardhamar, Jofrid (Rapport fra havforskningen;2022 - 35, Research report, 2022)
      NorKyst800 er et strømmodellsystem som bruker den åpent tilgjengelige modellen ROMS (Regional Ocean Modeling System) til å gjenskape strøm, hydrografi og vannstand i den norske kystsonen. Modellen har en horisontal oppløsning ...
    • North Sea Ecosystem Cruise Report_JH2022206 

      Franzè, Gayantonia; Falkenhaug, Tone; Albretsen, Jon; Ershova, Elizaveta; Gundersen, Kjell; Heldal, Hilde Elise; Lerch, Sarah (Toktrapport;2023 - 2, Research report, 2023)
      The North Sea Ecosystem cruise (NSEC) is a multi-purpose survey established to monitor distribution and interactions of several components that constitute the lower trophic levels of the pelagic food web including ...
    • Northeast Arctic Cod and Prey Match-Mismatch in a High-Latitude Spring-Bloom System 

      Vikebø, Frode Bendiksen; Broch, Ole Jacob; Kajiya Endo, Clarissa Akemi; Frøysa, Håvard G; Carroll, JoLynn; Juselius, Jonas; Langangen, Øystein Ole Gahr (Peer reviewed; Journal article, 2021)
      By combining an ocean model, a nutrient-phytoplankton-zooplankton-detritus-model and an individual-based model for early life stages of Northeast Arctic cod we systematically investigate food limitations and growth performance ...
    • Northeast Arctic Cod and Prey Match-Mismatch in a High-Latitude Spring-Bloom System 

      Vikebø, Frode Bendiksen; Broch, Ole Jacob; Kajiya Endo, Clarissa Akemi; Frøysa, Håvard G; Carroll, JoLynn; Juselius, Jonas; Langangen, Øystein Ole Gahr (Peer reviewed; Journal article, 2021)
      By combining an ocean model, a nutrient-phytoplankton-zooplankton-detritus-model and an individual-based model for early life stages of Northeast Arctic cod we systematically investigate food limitations and growth performance ...
    • Northern refugia and recent expansion in the North Sea: the case of the wrasse Symphodus melops (Linnaeus, 1758) 

      Robalo, Joana I.; Castilho, Rita; Francisco, Sara M.; Almada, Frederico; Knutsen, Halvor; Jorde, Per Erik; Pereira, Ana M.; Almada, Vitor C. (Peer reviewed; Journal article, 2012)
    • Norwegian fisheries in the Svalbard zone since 1980. Regulations, profitability and warming waters affect landings 

      Misund, Ole Arve; Heggland, Kristin; Skogseth, Ragnheid; Falck, Eva; Gjøsæter, Harald; Sundet, Jan Henry; Watne, Jens; Lønne, Ole Jørgen (Journal article; Peer reviewed, 2016-02-02)
      The Svalbard archipelago in the High Arctic is influenced by cold Arctic water masses from the north-east and the warm West Spitsbergen Current flowing northwards along its western coast. The eastern waters and the fjords ...
    • Norwegian kelp forest restauration - Kelp restoration actions in Norway, 1988-2022. 

      Bekkby, Trine; Christie, Hartvig C; Fagerli, Camilla With; Rinde, Eli; Strand, Hans Kristian (Lecture, 2023)
      The extensive kelp forests between 58 and 71oN along the Norwegian coastline have suffered greatly from sea urchin grazing since the 1970-ies (Mid and North Norway) and from turf/filamentous algal competition (South and ...
    • The Norwegian small scale fishery and data provided for the IHH FAO-Duke-WorldFish project 

      Nedreaas, Kjell Harald; Kuhnle, Grethe Aagaard; Iversen, Svein Arnholt; Kjellevold, Marian (Rapport fra havforskningen;2022 - 18, Research report, 2022)
    • Not that clean: Aquaculture-mediated translocation of cleaner fish has led to hybridization on the northern edge of the species' range 

      Faust, Ellika; Jansson, Eeva; André, Carl; Halvorsen, Kim Aleksander Tallaksen; Dahle, Geir; Knutsen, Halvor; Sanchez, Maria Quintela; Glover, Kevin Alan (Peer reviewed; Journal article, 2021)
      Translocation and introduction of non-native organisms can have major impacts on local populations and ecosystems. Nevertheless, translocations are common practices in agri- and aquaculture. Each year, millions of wild-caught ...
    • Not too slow, not too fast: water currents affect group structure, aggression and welfare in postsmolt Atlantic salmon Salmo salar 

      Solstorm, Frida; Solstorm, David; Oppedal, Frode; Olsen, Rolf Erik; Stien, Lars Helge; Fernø, Anders (Peer reviewed; Journal article, 2016)
    • Notes on age determination, size and age structure, longevity and growth of co-occurring macrourid fishes 

      Bergstad, Odd Aksel; Hunter, Rebecca H.; Cousins, Nicola J.; Bailey, David M.; Jørgensen, Terje (Peer reviewed; Journal article, 2021)
      Nineteen species of the deep-water fish family Macrouridae inhabit the Mid-Atlantic Ridge (MAR) of the North Atlantic. Size and age structure, longevity and length at age were explored for seven of the more abundant species: ...
    • Novel adverse outcome pathways revealed by chemical genetics in a developing marine fish 

      Sørhus, Elin; Incardona, John P.; Furmanek, Tomasz; Goetz, Giles W.; Scholz, Nathaniel; Meier, Sonnich; Edvardsen, Rolf; Jentoft, Sissel (Peer reviewed; Journal article, 2017)
      Crude oil spills are a worldwide ocean conservation threat. Fish are particularly vulnerable to the oiling of spawning habitats, and crude oil causes severe abnormalities in embryos and larvae. However, the underlying ...
    • Novel feeding interactions amplify the impact of species redistribution on an Arctic food web 

      Pecuchet, Laurene; Blanchet, Marie-Anne; Frainer, Andre barbosa; Husson, Bérengère; Jørgensen, Lis Lindal; Kortsch, Susanne; Primicerio, Raul (Peer reviewed; Journal article, 2020)
      Species are redistributing globally in response to climate warming, impacting ecosystem functions and services. In the Barents Sea, poleward expansion of boreal species and a decreased abundance of Arctic species are causing ...
    • Novel large-scale mapping highlights poor state of sea trout populations 

      Fiske, Peder; Forseth, Torbjørn; Thorstad, Eva Bonsak; Bakkestuen, Vegar; Einum, Sigurd; Falkegård, Morten; Garmo, Øyvind A.; Garseth, Åse Helen; Skoglund, Helge; Solberg, Monica Favnebøe; Utne, Kjell Rong; Vollset, Knut; Vøllestad, Leif Asbjørn; Wennevik, Vidar (Peer reviewed; Journal article, 2024)
      1. The state of sea trout in 1251 Norwegian watercourses was assessed based on a scoring system for human pressures, abundance data, and local knowledge. 2. Over 16,000 km of rivers and lakes were available to sea trout ...
    • A novel lice control method: photochemical treatment (Photolice) 

      Dalvin, Sussie Trine (Rapport fra havforskningen;2023 - 31, Research report, 2023)
      Control of salmon lice has long been the biggest challenge for the further development of a sustainable industry. Preventive measures are expected to play an increasing role, but experience suggests that drug treatment ...