Blar i Nord Open Research Archive på forfatter "Søreide, Janne"
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Can morphology reliably distinguish between the copepods Calanus finmarchicus and C. glacialis, or is DNA the only way?
Choquet, Marvin Raoul Charles Roger Ren; Kosobokova, Ksenia; Kwaśniewski, Sławomir; Hatlebakk, Maja Karoline Viddal; Dhanasiri, Anusha Krishanthi Shyama; Melle, Webjørn Raunsgård; Daase, Malin; Svensen, Camilla; Søreide, Janne; Hoarau, Galice Guillaume (Journal article; Peer reviewed, 2018)Copepods of the genus Calanus play a key role in marine food webs as consumers of primary producers and as prey for many commercially important marine species. Within the genus, Calanus glacialis and Calanus finmarchicus ... -
Contrasting Life Traits of Sympatric Calanus glacialis and C. finmarchicus in a Warming Arctic Revealed by a Year-Round Study in Isfjorden, Svalbard
Hatlebakk, Maja K Viddal; Kosobokova, Ksenia N.; Daase, Malin; Søreide, Janne (Peer reviewed; Journal article, 2022) -
Coping with rapid and cascading changes in Svalbard : the case of nature-based tourism in Svalbard
Dannevig, Halvor; Søreide, Janne; Sveinsdóttir, Anna Guðbjört; Olsen, Julia; Hovelsrud, Grete Kaare; Rusdal, Tone; Dale, Ragnhild Freng (Peer reviewed; Journal article, 2023)Tourism has been booming in Svalbard and has almost returned to pre-pandemic levels. At the same time, the island is a hotspot of rapid and cascading climate and environmental changes, which are already placing natural and ... -
Diel vertical migration of Arctic zooplankton during the polar night
Berge, Jørgen; Cottier, Finlo; Last, Kim S.; Varpe, Øystein; Leu, Eva; Søreide, Janne; Eiane, Ketil; Falk-Petersen, Stig; Willis, Kate; Nygård, Henrik; Vogedes, Daniel; Griffiths, Collin; Johnsen, Geir; Lorentzen, Dag Arne; Brierley, Andrew S. (Journal article; Peer reviewed, 2009)High-latitude environments show extreme seasonal variation in physical and biological variables. The classic paradigm of Arctic marine ecosystems holds that most biological processes slow down or cease during the polar ... -
Genetics redraws pelagic biogeography of Calanus
Choquet, Marvin Raoul Charles Roger Ren; Haltebakk, Maja; Dhanasiri, Anusha Krishanthi Shyama; Kosobokova, Ksenia N.; Smolina, Irina Vladimirovna; Søreide, Janne; Svensen, Camilla; Melle, Webjørn Raunsgård; Kwasniewski, Slawomir; Eiane, Ketil; Daase, Malin; Tverberg, Vigdis; Skreslet, Stig; Bucklin, Ann; Hoarau, Galice Guillaume (Journal article; Peer reviewed, 2017)Planktonic copepods of the genus Calanus play a central role in North Atlantic/Arctic marine food webs. Here, using molecular markers, we redrew the distributional ranges of Calanus species inhabiting the North Atlantic ... -
Lipid storage consumption and feeding ability of Calanus glacialis Jaschnov, 1955 males
Hatlebakk, Maja Karoline Viddal; Graeve, Martin; Boissonnot, Lauris; Søreide, Janne (Peer reviewed; Journal article, 2019)Calanus is one of the best studied genera of Arctic zooplankton, but still we know very little about the males since they are short-lived and mainly present in winter. Their short life-span compared to females is assumed ... -
New insights into Calanus glacialis and C. finmarchicus distribution, life histories and physiology in high-latitude seas
Hatlebakk, Maja K. Viddal (PhD in Aquatic Biosciences;no. 33, Doctoral thesis, 2019) -
No evidence for hybridization between Calanus finmarchicus and Calanus glacialis in a subarctic area of sympatry
Choquet, Marvin; Burckard, Gauthier; Skreslet, Stig; Hoarau, Galice Guillaume; Søreide, Janne (Peer reviewed; Journal article, 2020) -
Seasonal Enzyme Activities of Sympatric Calanus glacialis and C. finmarchicus in the High-Arctic
Hatlebakk, Maja K Viddal; Niehoff, Barbara; Choquet, Marvin; Hop, Haakon; Wold, Anette; Hoarau, Galice Guillaume; Søreide, Janne (Peer reviewed; Journal article, 2022)In the Arctic shelf seas, the mesozooplankton biomass is dominated by the arctic copepod Calanus glacialis, but its boreal congeneric C. finmarchicus is expanding northwards. Even though it is already there, C. finmarchicus ... -
Variability and decadal trends in the Isfjorden (Svalbard) ocean climate and circulation – An indicator for climate change in the European Arctic
Skogseth, Ragnheid; Olivier, Léa L.A.; Nilsen, Frank; Falck, Eva; Fraser, Neil J.; Tverberg, Vigdis; Ledang, Anna Birgitta; Vader, Anna; Jonassen, Marius Opsanger; Søreide, Janne; Cottier, Finlo Robert; Berge, Jørgen; Ivanov, Boris V.; Falk-Petersen, Stig (Peer reviewed; Journal article, 2020)Isfjorden, a broad Arctic fjord in western Spitsbergen, has shown significant changes in hydrography and inflow of Atlantic Water (AW) the last decades that only recently have been observed in the Arctic Ocean north of ...