Show simple item record Petrusevich, Vladislav Dmitrenko, Igor Niemi, Andrea Kirillov, Sergey Kamula, Christina Michelle Kuzyk, Zou Zou A. Barber, David G. Ehn, Jens 2020-07-15T01:13:09Z 2020-07-15T01:13:09Z 2020-03-17 2020-07-15T01:13:09Z en_US
dc.identifier.citation Petrusevich, V. Y., Dmitrenko, I. A., Niemi, A., Kirillov, S. A., Kamula, C. M., Kuzyk, Z. Z. A., Barber, D. G. & Ehn, J. K. (2020). Impact of tidal dynamics on diel vertical migration of zooplankton in Hudson Bay. Ocean Sci., 16, 337–353. en_US
dc.description.abstract Hudson Bay is a large seasonally ice-covered Canadian inland sea connected to the Arctic Ocean and North Atlantic through Foxe Basin and Hudson Strait. This study investigates zooplankton distribution, dynamics, and factors controlling them during open-water and ice cover periods (from September 2016 to October 2017) in Hudson Bay. A mooring equipped with two acoustic Doppler current profilers (ADCPs) and a sediment trap was deployed in September 2016 in Hudson Bay ~190 km northeast from the port of Churchill. The backscatter intensity and vertical velocity time series showed a pattern typical for zooplankton diel vertical migration (DVM). The sediment trap collected five zooplankton taxa including two calanoid copepods (Calanus glacialis and Pseudocalanus spp.), a pelagic sea snail (Limacina helicina), a gelatinous arrow worm (Parasagitta elegans), and an amphipod (Themisto libellula). From the acquired acoustic data we observed the interaction of DVM with multiple factors including lunar light, tides, and water and sea ice dynamics. Solar illuminance was the major factor determining migration pattern, but unlike at some other polar and subpolar regions, moonlight had little effect on DVM, while tidal dynamics are important. The presented data constitute the first-ever observed DVM in Hudson Bay during winter and its interaction with the tidal dynamics. en_US
dc.description.sponsorship Natural Sciences and Engineering Council of Canada (NSERC) Collaborative Research and Development project: BaySys (grant no. CRDPJ 470028-14), Manitoba Hydro, the Canada Excellence Research Chair (CERC) program, and the Canada Research Chairs (CRC) program en_US
dc.language.iso en en_US
dc.publisher Copernicus Publications, European Geosciences Union en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject Hudson Bay en_US
dc.subject zooplankton en_US
dc.subject migration en_US
dc.subject tidal dynamics en_US
dc.title Impact of tidal dynamics on diel vertical migration of zooplankton in Hudson Bay en_US
dc.type Technical Report en_US
dc.type info:eu-repo/semantics/report
dc.identifier.doi 10.5194/os-16-337-2020

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