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Eva Leu
Researcher at Norwegian Polar Institute
Publications - 45
Citations - 2775
Eva Leu is an academic researcher from Norwegian Polar Institute. The author has contributed to research in topics: Arctic & Sea ice. The author has an hindex of 22, co-authored 44 publications receiving 2321 citations. Previous affiliations of Eva Leu include Alfred Wegener Institute for Polar and Marine Research & University of Oslo.
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Timing of blooms, algal food quality and Calanus glacialis reproduction and growth in a changing Arctic
TL;DR: An extensive field study in the Arctic shelf seas followed the seasonal biomass development of ice algae and phytoplankton and their food quality in terms of their relative PUFA content to identify a potential mismatch between the two primary production peaks of high-quality food and the reproductive cycle of key Arctic grazers.
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Consequences of changing sea-ice cover for primary and secondary producers in the European Arctic shelf seas: Timing, quantity, and quality
TL;DR: In this article, the authors show that both a too early and a too late ice breakup can cause a mismatch between primary and secondary producers, with negative consequences for the entire lipid-based Arctic marine food web.
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Arctic spring awakening – Steering principles behind the phenology of vernal ice algal blooms
Eva Leu,Christopher John Mundy,Philipp Assmy,Karley Campbell,Tove M. Gabrielsen,Tove M. Gabrielsen,Michel Gosselin,Thomas Juul-Pedersen,Rolf Gradinger +8 more
TL;DR: In this paper, the authors present a pan-Arctic compilation of available time-series data on vernal sea ice algal bloom development and identify the most important factors controlling its development and termination.
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Diel vertical migration of Arctic zooplankton during the polar night
Jørgen Berge,Finlo Cottier,Øystein Varpe,Eva Leu,Janne E. Søreide,Ketil Eiane,Stig Falk-Petersen,Kate J Willis,Henrik Nygård,Daniel Vogedes,Collin Griffiths,Geir Johnsen,Dag Arne Lorentzen,Andrew S. Brierley +13 more
TL;DR: It is argued that even during the polar night, DVM is regulated by diel variations in solar and lunar illumination, which are at intensities far below the threshold of human perception, which suggests that the biologically mediated vertical flux of carbon will increase if there is a continued retreat of the Arctic winter sea ice cover.
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In the dark: A review of ecosystem processes during the Arctic polar night
Jørgen Berge,Paul E. Renaud,Gérald Darnis,Finlo Cottier,Tove M. Gabrielsen,Tove M. Gabrielsen,Geir Johnsen,Geir Johnsen,Lena Seuthe,Jan Marcin Węsławski,Eva Leu,Mark A. Moline,Jasmine Nahrgang,Janne E. Søreide,Øystein Varpe,Ole Jørgen Lønne,Malin Daase,Stig Falk-Petersen +17 more
TL;DR: Several recent lines of evidence indicate that the polar night is key to understanding Arctic marine ecosystems, and it appears that many organisms may exhibit endogenous rhythms that trigger fitness-maximizing activities in the absence of light-based cues.