dc.contributor.author | Last, Kim | |
dc.contributor.author | Hobbs, Laura | |
dc.contributor.author | Berge, Jørgen | |
dc.contributor.author | Brierley, Andrew S | |
dc.contributor.author | Cottier, Finlo Robert | |
dc.date.accessioned | 2017-03-11T09:39:35Z | |
dc.date.available | 2017-03-11T09:39:35Z | |
dc.date.issued | 2016-01-07 | |
dc.description.abstract | In extreme high-latitude marine environments that
are without solar illumination in winter, light-mediated
patterns of biological migration have historically
been considered non-existent [1]. However, diel vertical
migration (DVM) of zooplankton has been shown
to occur even during the darkest part of the polar
night, when illumination levels are exceptionally low
[2, 3]. This paradox is, as yet, unexplained. Here,
we present evidence of an unexpected uniform
behavior across the entire Arctic, in fjord, shelf,
slope and open sea, where vertical migrations of
zooplankton are driven by lunar illumination. A shift
from solar-day (24-hr period) to lunar-day (24.8-hr
period) vertical migration takes place in winter
when the moon rises above the horizon. Further,
mass sinking of zooplankton from the surface waters
and accumulation at a depth of 50 m occurs every
29.5 days in winter, coincident with the periods
of full moon. Moonlight may enable predation of
zooplankton by carnivorous zooplankters, fish, and
birds now known to feed during the polar night [4].
Although primary production is almost nil at this
time, lunar vertical migration (LVM) may facilitate
monthly pulses of carbon remineralization, as they
occur continuously in illuminated mesopelagic systems
[5], due to community respiration of carnivorous
and detritivorous zooplankton. The extent of
LVM during the winter suggests that the behavior is
highly conserved and adaptive and therefore needs
to be considered as ‘‘baseline’’ zooplankton activity
in a changing Arctic ocean [6–9]. | en_US |
dc.description | Published version. Source at <a href=http://dx.doi.org/10.1016/j.cub.2015.11.038> http://dx.doi.org/10.1016/j.cub.2015.11.038 </a> | en_US |
dc.identifier.citation | Last K. et.al.: Moonlight Drives Ocean-Scale Mass Vertical Migration of Zooplankton during the Arctic Winter. Current Biology. 2016;26(2):244-251 | en_US |
dc.identifier.cristinID | FRIDAID 1328203 | |
dc.identifier.doi | 10.1016/j.cub.2015.11.038 | |
dc.identifier.issn | 0960-9822 | |
dc.identifier.issn | 1879-0445 | |
dc.identifier.uri | https://hdl.handle.net/10037/10571 | |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.journal | Current Biology | |
dc.relation.projectID | info:eu-repo/grantAgreement/NRC/POLARPROG/226417/Jurisdiction/MareIncognitumEcologicalProcessesDuringThePolarNight// | en_US |
dc.relation.projectID | info:eu-repo/grantAgreement/NRC/FRIMEDBIO/214271/Jurisdiction/CircadianRhythmsOfArcticZooplanktonFromPolarTwilightToPolarNight/CircA/ | en_US |
dc.relation.projectID | info:eu-repo/grantAgreement/NRC/POLARPROG/244319/Jurisdiction/ArcticOceanEcosystems// | en_US |
dc.rights.accessRights | openAccess | en_US |
dc.subject | VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 | en_US |
dc.subject | VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 | en_US |
dc.title | Moonlight Drives Ocean-Scale Mass Vertical Migration of Zooplankton during the Arctic Winter | en_US |
dc.type | Journal article | en_US |
dc.type | Tidsskriftartikkel | en_US |
dc.type | Peer reviewed | en_US |