Contrasting two major Arctic coastal polynyas: the role of sea ice in driving diel vertical migrations of zooplankton in the Laptev and Beaufort seas
Igor A. Dmitrenko,Vladislav Petrusevich,Andreas Preußer,Ksenia Kosobokova,Caroline Bouchard,Maxime Geoffroy,Alexander S. Komarov,David G. Babb,Sergei A. Kirillov,and David G. Barber
Climate Sciences Division, Alfred Wegener Institute for Polar and Marine Research, 27570 Bremerhaven, Germany
now at: German Space Agency, German Aerospace Center (DLR), 53227 Bonn, Germany
Ksenia Kosobokova
Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, 117218, Russia
Caroline Bouchard
Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, 3900, Greenland
Département de Biologie, Université Laval, Québec, G1V 0A6, Quebec, Canada
Maxime Geoffroy
Centre for Fisheries Ecosystems Research, Fisheries and Marine Institute, Memorial University of Newfoundland, St. John's, A1C 5R3, Newfoundland and Labrador, Canada
Department of Arctic and Marine Biology, Arctic University of Norway, Tromsø, 9019, Norway
The diel vertical migration (DVM) of zooplankton is one of the largest species migrations to occur globally and is a key driver of regional ecosystems. Here, time series of acoustic data collected at the circumpolar Arctic polynya system were used to examine the annual cycle of DVM. We revealed that the formation of polynya open water disrupts DVM. This disruption is attributed to a predator avoidance behavior of zooplankton in response to higher polar cod abundance attracted by the polynya.
The diel vertical migration (DVM) of zooplankton is one of the largest species migrations to...