Browsing Publikasjoner fra CRIStin by Title

Now showing items 2249-2268 of 3061

    • Rapid life-history evolution in a wild Daphnia pulex population in response to novel size-dependent predation 

      Wathne, Ingrid; Enberg, Katja; Jensen, Knut Helge; Heino, Mikko Petteri (Peer reviewed; Journal article, 2020)
      The effect of size-selective predation on prey communities and their traits is well documented, but the relative roles of genetic adaptation and phenotypic plasticity continue to be debated. We looked for evidence of genetic ...

    • Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides) 

      Bank, Michael; Frantzen, Sylvia; Duinker, Arne; Amouroux, David; Tessier, Emmanuel; Nedreaas, Kjell; Måge, Amund; Nilsen, Bente Merete (Peer reviewed; Journal article, 2021)
      Mercury (Hg) pollution in the ocean is an issue of global concern, however bioaccumulation regimes of this ubiquitous pollutant in marine apex predators have important knowledge gaps. Our fish length and stable isotope ...

    • Rapid water temperature variations at the northern shelf of the Yellow Sea 

      Asplin, Lars; Lin, Fan; Budgell, Paul; Strand, Øivind (Peer reviewed; Journal article, 2021)
      During summer, there is great spatial variability in bottom water temperature on the northern shelf of the Yellow Sea. This variability is associated with a thermal front along the shelf. Oscillatory currents from semidiurnal ...

    • Rapport - Forsøksfiske etter mesopelagiske arter : M/S Ligrunn, september 2019 

      Bjordal, Åsmund (Rapport fra havforskningen;2019 - 56, Research report, 2019)
      De siste 50 år har det vært spredte forsøk på høsting av mesopelagisk fisk. Etter globalt rekordestimat av denne ressursen, ble det rundt 2015 ny interesse for å utvikle et fiskeri etter mesopelagiske arter. Havforskning ...

    • Rapport fra høstundersøkelsene med strandnot i indre og ytre Oslofjord 2018 

      Espeland, Sigurd Heiberg; Knutsen, Halvor (Rapport fra havforskningen;2019 - 1, Research report, 2019)
      Rapporten oppsummerer resultater fra funn som ble gjort ved gjennomføring av forsøksfiske med strandnot i indre og ytre Oslofjord i 2018. Registreringene er gjort som del av Havforskningsinstituttets høstundersøkelse som ...

    • Rapport fra høstundersøkelsene med strandnot i indre og ytre Oslofjord 2022 

      Espeland, Sigurd Heiberg; Knutsen, Halvor (Rapport fra havforskningen;2023 - 13, Research report, 2023)
      Rapporten oppsummerer resultater fra funn som ble gjort ved gjennomføring av forsøksfiske med strandnot i indre og ytre Oslofjord frem til 2022. Registreringene er gjort som del av Havforskningsinstituttets høstundersøkelse ...

    • Rapport frå det nasjonale elvelaboratoriet i Guddalselva 2021 - Elvemiljø, smoltutvandring og gytebestandar av laks (Salmo salar) og sjøaure (Salmo trutta) 

      Aannø, William Aure; Østebø, Britt Iren; Skaala, Øystein (Rapport fra havforskningen;2021 - 57, Research report, 2021)
      I Guddalselva er det installert ei heildekkande smoltfelle (Wolf type) som fangar smolten på veg ut i sjøen. Dette gjer at vi får representative uttak av mengde smolt produsert i elva. Elva har også ei fisketrapp som vert ...

    • Råd for tobisfiskeriet i norsk sone for 2022 - Tobistokt i Nordsjøen 27. april-12. mai 2022 

      Johnsen, Espen (Toktrapport;2022 - 6, Research report, 2022)
      Tobistoktet i 2022 viser at rekrutteringen (ettåringer) av havsil (tobis) i sørlige del av norsk sone av Nordsjøen er lavere enn middels, men individvekten for disse ettåringene er høyere enn gjennomsnittet i tidsserien ...

    • Råd om fiske av snøkrabbe i 2024 

      Hjelset, Ann Merete; Hvingel, Carsten; Danielsen, Hanna Ellerine Helle; Jenssen, Maria; Zimmermann, Fabian; Humborstad, Odd Børre; Jørgensen, Terje; Løkkeborg, Svein; Anders, Neil (Rapport fra havforskningen;2023 - 62, Research report, 2023)
      Havforskningsinstituttet anbefaler at den totale fangsten i 2024 ikke overstiger 10 300 tonn, at det stenges for fiske i perioden 1. juli til 31. desember og at minstemål på 95 mm skallbredde opprettholdes. Videre opprettholdes ...

    • Råd om fiske på kongekrabbe i 2024 

      Hvingel, Carsten; Hjelset, Ann Merete; Fuhrmann, Mona Maria; Jenssen, Maria; Zimmermann, Fabian (Rapport fra havforskningen;2023 - 50, Research report, 2023)

    • Råstoffkilder for anvendelse som attraktanter i fabrikkert agn 

      Løkkeborg, Svein; Bogevik, André Sture; Humborstad, Odd Børre; Utne-Palm, Anne Christine (Rapport fra havforskningen;, Research report, 2016)

    • Reaction norm analysis reveals rapid shifts toward delayed maturation in harvested Lake Erie yellow perch (Perca flavescens) 

      Gíslason, Davíð; Heino, Mikko Petteri; Robinson, Beren W.; McLaughlin, Robert B.; Dunlop, Erin S. (Journal article; Peer reviewed, 2019)
      Harvested marine fish stocks often show a rapid and substantial decline in the age and size at maturation. Such changes can arise from multiple processes including fisheries‐induced evolution, phenotypic plasticity, and ...

    • “Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod 

      Johansen, Torild; Westgaard, Jon-Ivar; Seliussen, Bjørghild Breistein; Nedreaas, Kjell Harald; Dahle, Geir; Glover, Kevin; Kvalsund, Roger; Aglen, Asgeir (Journal article; Peer reviewed, 2017)
      With the decline of many of the world’s fisheries, increased regulation, including marine protected areas (MPA), forms an increasingly important role in promoting sustainable resource use. Here, we present a novel “real-time” ...

    • Recent changes in distribution and relative abundance of cetaceans in the Norwegian Sea and their relationship with potential prey 

      Nøttestad, Leif; Krafft, Bjørn Arne; Anthonypillai, Valentine; Bernasconi, Matteo; Langård, Lise; Mørk, Herdis Langøy; Fernö, Anders (Journal article; Peer reviewed, 2015)

    • Recent Harp and Hooded Seal Pup Production Estimates in the Greenland Sea Suggest Ecology-Driven Declines 

      Biuw, Martin; Øigård, Tor Arne; Nilssen, Kjell Tormod; Stenson, Garry; Lindblom, Lotta; Poltermann, Michael Tino; Kristiansen, Martin; Haug, Tore (Peer reviewed; Journal article, 2022)
      Pup production of the Greenland Sea populations of harp (Pagophilus groenlandicus) and hooded (Cystophora cristata) seals were estimated based upon aerial surveys in March 2018. One fixed-wing aircraft was used for large-area ...

    • Recent trend reversal for declining European seagrass meadows 

      de los Santos, Carmen B; Krause-Jensen, Dorte; Alcoverro, Teresa; Marba, Núria; Duarte, Carlos M.; van Katwijk, Marieke M; Perez, Marta; Romero, Javier; Sanchez-Lizaso, Jose L; Roca, Guillem; Jankowska, Emilia; Perez-Llorens, Jose Lucas; Fournier, Jérôme; Montefalcone, Monica; Pergent, Gerard; Ruiz, Juan M; Cabaco, Susana; Cook, Kevan; Wilkes, Robert J; Moy, Frithjof Emil; Trayter, Gregori Munoz-Ramos; Arano, Xavier Seglar; de Jong, Dick J; Fernandez-Torquemada, Yolanda; Auby, Isabelle; Vergara, Juan J; Santos, Rui (Journal article; Peer reviewed, 2019)
      Seagrass meadows, key ecosystems supporting fisheries, carbon sequestration and coastal protection, are globally threatened. In Europe, loss and recovery of seagrasses are reported, but the changes in extent and density ...

    • Recent warming and freshening of the Norwegian Sea observed by Argo data 

      Mork, Kjell Arne; Skagseth, Øystein; Søiland, Henrik (Journal article; Peer reviewed, 2019)
      Climate variability in the Norwegian Sea, comprising the Norwegian and Lofoten Basins, was investigated based upon monthly estimates of ocean heat and freshwater contents using data from Argo floats during 2002–18. Both ...

    • ReCodLiver0.9: Overcoming Challenges in Genome-Scale Metabolic Reconstruction of a Non-model Species 

      Hanna, Eileen Marie; Zhang, Xiaokang; Eide, Marta; Fallahi, Shirin; Furmanek, Tomasz; Yadetie, Fekadu; Zielinski, Daniel Craig; Goksøyr, Anders; Jonassen, Inge (Peer reviewed; Journal article, 2020)
      The availability of genome sequences, annotations, and knowledge of the biochemistry underlying metabolic transformations has led to the generation of metabolic network reconstructions for a wide range of organisms in ...

    • Recommendations for dietary level of micro-minerals and vitamin D3 to Atlantic salmon (Salmo salar) parr and post-smolt when fed low fish meal diets 

      Antony Jesu Prabhu, Antony Jesu Prabhu; Lock, Erik-Jan; Hemre, Gro Ingunn; Hamre, Kristin; Espe, Marit; Olsvik, Pål Asgeir; Silva, Joana; Hansen, Ann-Cecilie; Johansen, Johan; Sissener, Nini; Waagbø, Rune (Journal article; Peer reviewed, 2019)
      Atlantic salmon (Salmo salar) feeds have changed drastically in their composition from being predominantly marine-based to plant-based. This has altered the dietary supply and availability of micro-nutrients to Atlantic ...

    • Reconstruction of the birth of a male sex chromosome present in Atlantic herring 

      Rafati, Nima; Chen, Junfeng; Herpin, Amaury; Pettersson, Mats; Han, Fan; Feng, Chungang; Wallerman, Ola; Rubin, Carl-Johan; Péron, Sandrine; Cocco, Arianna; Larsson, Mårten; Trötschel, Christian; Poetsch, Ansgar; Korsching, Kai; Bönigk, Wolfgang; Körschen, Heinz G.; Berg, Florian; Folkvord, Arild; Benjamin Kaupp, Kaupp; Schartl, Manfred; Andersson, Leif (Peer reviewed; Journal article, 2020)
      The mechanisms underlying sex determination are astonishingly plastic. Particularly the triggers for the molecular machinery, which recalls either the male or female developmental program, are highly variable and have ...