Visual predators and the diel vertical migration of copepods under Arctic sea ice during the midnight sun |
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| Authors: | Fortier, Martin Fortier, Louis Hattori, Hiroshi Saito, Hiroaki Legendre, Louis |
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| Affiliation: | 1 Giroq, Département De Biologie, Université Laval, Québec, Québec, Canada G1k 7p4; 2 Department Of Marine Sciences And Technology, Hokkaido Tokai University, Minamisawa 5, Minami-Ku, Sapporo 005-8601, Japan; 3 National Fisheries Research Institute, Kushiro 085-0802, Japan; 4 Station Zoologique, Bp 28, 06234 Villefranche-Sur-Mer Cedex, France |
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| Abstract: | Despite the midnight sun, herbivore copepods Calanus hyperboreus,C. glacialis and Pseudocalanus acuspes displayed a normal dielvertical migration (NDVM) under the ice cover of Barrow Straitin spring, ascending into the chlorophyll-rich under-ice surfacelayer around maximum relative rate of change in irradiance ( |
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