Blar i Department of Biological Sciences på forfatter "Aarflot, Johanna Myrseth"
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Caught in broad daylight: Topographic constraints of zooplankton depth distributions
Aarflot, Johanna Myrseth; Aksnes, Dag Lorents; Opdal, Anders Frugård; Skjoldal, Hein Rune; Fiksen, Øyvind (Peer reviewed; Journal article, 2019-05)For visual predators, sufficient light is critical for prey detection and capture. Because light decays exponentially with depth in aquatic systems, vertical movement has become a widespread strategy among zooplankton for ... -
Contribution of Calanus to the mesozooplankton biomass in the Barents Sea
Aarflot, Johanna Myrseth; Skjoldal, Hein Rune; Dalpadado, Padmini; Skern-Mauritzen, Mette (Peer reviewed; Journal article, 2018)Copepods from the genus Calanus are crucial prey for fish, seabirds and mammals in the Nordic and Barents Sea ecosystems. The objective of this study is to determine the contribution of Calanus species to the mesozooplankton ... -
Foraging success in planktivorous fish increases with topographic blockage of prey distributions
Aarflot, Johanna Myrseth; Dalpadado, Padmini; Fiksen, Øyvind (Journal article; Peer reviewed, 2020)Banks and shelves are productive zones of the ocean, and often home to large fish stocks. Can shallower bottom topographies improve foraging opportunities for pelagic fish by blocking zooplankton from hiding in deep, darker ... -
Three-dimensional zooplankton distributions seen through the lens of fish in the Barents Sea
Aarflot, Johanna Myrseth (Doctoral thesis, 2019-04-08)My aim with this dissertation is to enhance our knowledge of food availability and foraging opportunities for planktivorous fish over the Barents Sea bathymetry. The Barents Sea is a highly productive sub-Arcic shelf sea ... -
Visual predation risk and spatial distributions of large Arctic copepods along gradients of sea ice and bottom depth
Langbehn, Tom; Aarflot, Johanna Myrseth; Freer, Jennifer J.; Varpe, Øystein (Journal article; Peer reviewed, 2023)Changes in the community size structure of Arctic copepods toward smaller and less fat individuals or species have been linked to environmental changes. The underpinning mechanisms are, however, poorly understood. We use ...