Blar i Brage IMR på forfatter "Vihtakari, Mikko"
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Advice on fishing opportunities for beaked redfish in 2025 and 2026 in ICES subareas 1 and 2
Howell, Daniel; Nielsen, Anders; Stock, Brian; Ono, Kotaro; Clain, Laura; Fossheim, Maria; Wenneck, Thomas de Lange; Harbitz, Alf; Perez-Rodriguez, Alfonso; Iriondo, Ane; Staby, Arved; Bogstad, Bjarte; Husson, Berengere; Marshall, C. Tara; Tranang, Caroline Aas; Johannesen, Edda; Vozgirdas, Eduardas; Eriksen, Elena; Eidset, Elise; Hallfredsson, Elvar H.; Berg, Erik; Skaret, Georg; Höffle, Hannes; Jacobsen, Jan Arge; Stiansen, Jan Erik; Godiksen, Jane Aanestad; Fall, Johanna Jennifer Elisabeth; Trochta, John Tyler; Gondra, Jon Ruiz; Sanchez, José Miguel Casas; Nedreaas, Kjell Harald; Trella, Kordian; Windsland, Kristin; Aune, Magnus; Bernreuther, Matthias; Vihtakari, Mikko; Breivik, Olav Nikolai; Alpoim, Ricardo; Tallman, Ross; Subbey, Samuel; Seim, Silje Elisabeth; Gundersen, Sofie; Hølleland, Sondre Nedreås; Karlson, Stine; Vollen, Tone (IMR/PINRO Joint Report Series;2024 - 4, Research report, 2024) -
Advice on fishing opportunities for Greenland halibut in 2024 in ICES subareas 1 and 2
Howell, Daniel; Bogstad, Bjarte; Chetyrkin, Anatoly; Fall, Johanna Jennifer Elisabeth; Filin, Anatoly; Hallfredsson, Elvar Halldor; Höffle, Hannes; Johannesen, Edda; Kovalev, Yuri; Mikhailov, Andrey; Russkikh, Alexey; Stesko, Aleksi; Vasilyev, Dmitri; Vihtakari, Mikko; Windsland, Kristin; Yaragina, Natalya (IMR/PINRO Joint Report Series;2023 - 6, Research report, 2023)Stock Name: Northeast Arctic Greenland halibut (ICES areas 1 and 2) The Joint Russian-Norwegian Arctic Fisheries Working Group (JRN-AFWG) advises that when the MSY approach is applied, catches in 2024 should be no more ... -
Advice on fishing opportunities for Northeast Arctic cod in 2024 in ICES subareas 1 and 2
Howell, Daniel; Bogstad, Bjarte; Chetyrkin, Anatoly; Fall, Johanna Jennifer Elisabeth; Filin, Anatoly; Hallfredsson, Elvar Halldor; Höffle, Hannes; Johannesen, Edda; Kovalev, Yuri; Mikhailov, Andrey; Russkikh, Alexey; Stesko, Aleksi; Vasilyev, Dmitri; Vihtakari, Mikko; Windsland, Kristin; Yaragina, Natalya (IMR/PINRO Joint Report Series;2023 - 5, Research report, 2023)Stock Name: Northeast Arctic cod (ICES areas 1 and 2) The Joint Russian-Norwegian Arctic Fisheries Working Group (JRN-AFWG) advises that when the Joint Norwegian–Russian Fisheries Commission management plan is applied, ... -
Advice on fishing opportunities for Northeast Arctic cod in 2025 in ICES subareas 1 and 2
Howell, Daniel; Nielsen, Anders; Stock, Brian; Kotaro, Ono; Clain, Laura; Fossheim, Maria; Wenneck, Thomas de Lange; Harbitz, Alf; Perez-Rodriguez, Alfonso; Iriondo, Ane; Staby, Arved; Bogstad, Bjarte; Husson, Berengere; Marshall, C. Tara; Tranang, Caroline Aas; Johannesen, Edda; Vozgirdas, Eduardas; Eriksen, Elena; Eidset, Elise; Hallfredsson, Elvar Halldor; Berg, Erik; Skaret, Georg; Höffle, Hannes; Jacobsen, Jan Arge; Stiansen, Jan Erik; Godiksen, Jane Aanestad; Fall, Johanna Jennifer Elisabeth; Trochta, John Tyler; Gondra, Jon Ruiz; Sanchez, José Miguel Casas; Nedreaas, Kjell Harald; Trella, Kordian; Windsland, Kristin; Aune, Magnus; Bernreuther, Matthias; Vihtakari, Mikko; Breivik, Olav Nikolai; Alpoim, Ricardo; Tallman, Ross; Subbey, Samuel; Seim, Silje Elisabeth; Gundersen, Sofie; Hølleland, Sondre Nedreås; Karlson, Stine; Vollen, Tone (IMR/PINRO Joint Report Series;2024 - 6, Research report, 2024) -
Advice on fishing opportunities for Northeast arctic haddock in 2024 in ICES subareas 1 and 2
Howell, Daniel; Bogstad, Bjarte; Chetyrkin, Anatoly; Fall, Johanna Jennifer Elisabeth; Filin, Anatoly; Hallfredsson, Elvar Halldor; Höffle, Hannes; Johannesen, Edda; Kovalev, Yuri; Mikhailov, Andrey; Russkikh, Alexey; Stesko, Aleksi; Vasilyev, Dmitri; Vihtakari, Mikko; Windsland, Kristin; Yaragina, Natalya (IMR/PINRO Joint Report Series;2023 - 4, Research report, 2023)Stock Name: Northeast Arctic haddock (ICES areas 1 and 2) The Joint Russian-Norwegian Arctic Fisheries Working Group (JRN-AFWG) advises that when the Joint Norwegian–Russian Fisheries Commission management plan is applied, ... -
Bestandsvurdering av kveite (Hippoglossus hippoglossus) i Norsk økonomisk sone (ICES-områder 1-4) i 2024
Zimmermann, Fabian; Berg, Erik; Larsen, Torfinn Erling; Vihtakari, Mikko (Rapport fra havforskningen;2024 - 39, Research report, 2024)Kveite (Hippoglossus hippoglossus) er en langtlevende flatfiskart med lang fiskerihistorie og høy økonomisk og kulturell verdi i Norge. Arten forekommer over store områder i norske farvann, men hovedtyngden av bestanden ... -
Changes in Sea-Ice Protist Diversity With Declining Sea Ice in the Arctic Ocean From the 1980s to 2010s
Hop, Haakon; Vihtakari, Mikko; Bluhm, Bodil; Assmy, Philipp; Poulin, Michel; Gradinger, Rolf; Peeken, Ilka; von Quillfeldt, Cecilie; Olsen, Lasse Mork; Zhitina, Ludmila; Melnikov, Igor A. (Peer reviewed; Journal article, 2020)The large declines in Arctic sea-ice age and extent over the last decades could have altered the diversity of sea-ice associated unicellular eukaryotes (referred to as sea-ice protists). A time series from the Russian ... -
Consequences of Atlantification on a Zooplanktivorous Arctic Seabird
Descamps, Sebastien; Wojczulanis-Jakubas, Katarzyna; Jakubas, Dariusz; Vihtakari, Mikko; Steen, Harald; Karnovsky, Nina J.; Welcker, Jorg; Hovinen, Johanna Emilia Heidi; Bertrand, Philip; Strzelewicz, Agnieszka; Skogseth, Ragnheid; Kidawa, Dorota; Boehnke, Rafał; Błachowiak-Samołyk, Katarzyna (Peer reviewed; Journal article, 2022)Global warming, combined with an increasing influence of Atlantic Waters in the European Arctic, are causing a so-called Atlantification of the Arctic. This phenomenon is affecting the plankton biomass and communities with ... -
Feeding at the front line: Interannual variation in the use of glacier fronts by foraging black-legged kittiwakes
Bertrand, Philip; Strøm, Hallvard; Bêty, Joël; Steen, Harald; Kohler, Jack; Vihtakari, Mikko; Van Pelt, Ward; Yoccoz, Nigel Gilles; Hop, Haakon; Harris, Stephanie M.; Patrick, Samantha C.; Assmy, Philipp; Wold, Anette; Duarte, Pedro; Moholdt, Geir; Descamps, Sébastien (Peer reviewed; Journal article, 2021)Tidewater glacier fronts can represent important foraging areas for Arctic predators. Their ecological importance is likely to change in a warmer Arctic. Their profitability and use by consumers are expected to vary in ... -
Ice-Associated Amphipods in a Pan-Arctic Scenario of Declining Sea Ice
Hop, Haakon; Vihtakari, Mikko; Bluhm, Bodil; Daase, Malin; Gradinger, Rolf; Melnikov, Igor A. (Peer reviewed; Journal article, 2021)Sea-ice macrofauna includes ice amphipods and benthic amphipods, as well as mysids. Amphipods are important components of the sympagic food web, which is fuelled by the production of ice algae. Data on the diversity of ... -
Joint Russian Norwegian Arctic Fisheries Working Group (JRN-AFWG) Report 2024
Howell, Daniel; Aune, Magnus; Bogstad, Bjarte; Chetyrkin, Anatoly; Fall, Johanna Jennifer Elisabeth; Filin, Anatoly; Godiksen, Jane Aanestad; Hallfredsson, Elvar Halldor; Johannesen, Edda; Kovalev, Yuri; Mikhailov, Andrey; Russkikh, Alexey; Stesko, Aleksi; Vasilyev, Dmitri; Vihtakari, Mikko; Vollen, Tone; Windsland, Kristin; Yaragina, Natalia A. (IMR/PINRO Joint Report Series;2024 - 7, Research report, 2024)On 30th March 2022 all Russian participation in ICES was temporally suspended. Although the announcement of the suspension stressed the role of ICES as a “multilateral science organization”, this suspension applied not ... -
Kveite (Hippoglossus hippoglossus) i Norsk økonomisk sone (ICES-områder 1-4)
Berg, Erik; Vihtakari, Mikko; Zimmermann, Fabian (Rapport fra havforskningen;2024 - 42, Research report, 2024) -
Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset
Vihtakari, Mikko; Elvarsson, Bjarki Pór; Treble, Margaret; Nogueira, Adriana; Hedges, Kevin; Hussey, Nigel E.; Wheeland, Laura; Roy, Denis; Ofstad, Lise Helen; Hallfredsson, Elvar Halldor; Barkley, Amanda; Estevez-Barcia, Daniel; Nygaard, Rasmus; Healey, Brian; Steingrund, Petur; Johansen, Torild; Albert, Ole Thomas; Boje, Jesper (Peer reviewed; Journal article, 2022)Marine fisheries are often allocated to stocks that reflect pragmatic considerations and may not represent the species’ spatial population structure, increasing the risk of mismanagement and unsustainable harvesting. Here ... -
Pan-Arctic suitable habitat model for Greenland halibut
Vihtakari, Mikko; Hordoir, Robinson; Treble, Margret A; Bryan, Meaghan D.; Elvarsson, Bjarki; Nogueira, Adriana; Hallfredsson, Elvar H.; Christiansen, Jørgen Schou; Albert, Ole Thomas (Peer reviewed; Journal article, 2021)Deep-sea marine fishes support important fisheries but estimates of their distributions are often incomplete as the data behind them may reflect fishing practices, access rights, or political boundaries, rather than actual ... -
Pelagic ecosystem characteristics across the atlantic water boundary current from Rijpfjorden, Svalbard, to the Arctic ocean during summer (2010-2014)
Hop, Haakon; Assmy, Philipp; Wold, Anette; Sundfjord, Arild; Daase, Malin; Duarte, Pedro; Kwasniewski, Slawomir; Gluchowska, Marta; Wiktor, Józef Maria; Tatarek, Agnieszka; Wiktor, Józef Maria Jr.; Kristiansen, Svein; Fransson, Agneta Ingrid; Chierici, Melissa; Vihtakari, Mikko (Journal article; Peer reviewed, 2019)The northern coast of Svalbard contains high-arctic fjords, such as Rijpfjorden (80°N 22°30′E). This area has experienced higher sea and air temperatures and less sea ice in recent years, and models predict increasing ... -
Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792)
Gíslason, Davíð; Estévez-Barcia, Daniel; Sveinsson, Sæmundur; Hansen, Agneta; Roy, Denis; Treble, Margaret; Boje, Jesper; Vihtakari, Mikko; Elvarsson, Bjarki Þór; Hedges, Kevin; Hallfredsson, Elvar Halldor; Johansen, Torild (Peer reviewed; Journal article, 2023)Understanding the genetic differentiation among populations of most marine fish requires investigating the differences among spawning grounds. However, this can be challenging as spawning grounds for some species are not ... -
Report of the Joint Russian-Norwegian Working Group on Arctic Fisheries (JRN-AFWG) 2023
Howell, Daniel; Bogstad, Bjarte; Chetyrkin, Anatoly; Fall, Johanna Jennifer Elisabeth; Filin, Anatoly; Hallfredsson, Elvar Halldor; Höffle, Hannes; Johannesen, Edda; Kovalev, Yuri; Mikhailov, Andrey; Russkikh, Alexey; Stesko, Aleksi; Vasilyev, Dmitri; Vihtakari, Mikko; Windsland, Kristin; Yaragina, Natalya (IMR/PINRO Joint Report Series;2023 - 7, Research report, 2023)On 30 th March 2022 all Russian participation in ICES was temporally suspended. Although the announcement of the suspension stressed the role of ICES as a “multilateral science organization”, this suspension applied not ... -
Tidewater glaciers and bedrock characteristics control the phytoplankton growth environment in a fjord in the arctic
Halbach, Laura; Vihtakari, Mikko; Duarte, Pedro; Everett, Alistair; Granskog, Mats; Hop, Haakon; Kauko, Hanna Maria; Kristiansen, Svein; Myhre, Per Inge; Pavlov, Alexey K.; Pramanik, Ankit; Tatarek, Agnieszka; Torsvik, Tomas; Wiktor, Józef Maria; Wold, Anette; Wulff, Angela; Steen, Harald; Assmy, Philipp (Journal article; Peer reviewed, 2019)Meltwater discharge from tidewater glaciers impacts the adjacent marine environment. Due to the global warming, tidewater glaciers are retreating and will eventually terminate on land. Yet, the mechanisms through which ... -
Tidewater glaciers as “climate refugia” for zooplankton-dependent food web in Kongsfjorden, Svalbard
Hop, Haakon; Wold, Anette; Vihtakari, Mikko; Assmy, Philipp; Kuklinski, Piotr; Kwasniewski, Slawomir; Griffith, Gary; Pavlova, Olga; Duarte, Pedro; Steen, Harald (Peer reviewed; Journal article, 2023)With climate warming, many tidewater glaciers are retreating. Fresh, sediment-rich sub-glacial meltwater is discharged at the glacier grounding line, where it mixes with deep marine water resulting in an upwelling of a ... -
Using multivariate autoregressive state-space models to examine stock structure of Greenland halibut in the North Atlantic
Úbeda, J.; Nogueira, A.; Tolimieri, N.; Vihtakari, Mikko; Elvarsson, B.; Treble, M.; Boje, J. (Peer reviewed; Journal article, 2023)Accurate information on population structure is essential for effective fisheries management. Greenland halibut (Reinhardtius hippoglossoides) in the North Atlantic is managed as four separate offshore stocks. We use ...