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The objective of Team 3 is to assess how different drivers collectively affect biological productivity and the diversity and interaction of water column organisms (microbes, algae and consumers) and the benthos, with an aim to identify the fate of nutrients entering Hudson Bay through marine gateways and regulated versus unregulated rivers. In Hudson Bay, river runoff, sea ice dynamics and ocean physics [Ingram et al., 1996] influence the growth conditions of marine organisms (Figure 6). The relative importance of the different factors and their interactions vary in space (locally, regionally) and time (seasonally, inter-annually) [Legendre et al., 1996; Kuzyk et al., 2010]. Under climate warming, increased river flow, reduced ice formation and decreased winter convection is expected to reinforce vertical stratification, decrease upward nutrient supply and lower overall biological productivity at the bay-wide scale [Joly et al., 2011]. Horizontal nutrient deliveries by rivers will probably make a greater contribution to coastal productivity in such a setting, unless storms became sufficiently frequent or powerful to erode the vertical stratification. These changes are also likely to shift the seasonal peak of primary production (PP) forward, thereby affecting the coupling between primary producers and consumers as well as the vertical export of organic matter to the benthos. In the near-shore zone, the timing of biological production will be impacted by the quantity and quality of runoff.

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Keywords

Metadata

Field Value
Title Marine Ecosystems (BaySys Team 3)
Research Program Name BaySys
Keyword Vocabulary Polar Data Catalogue
Keyword Vocabulary URL https://www.polardata.ca/pdcinput/public/keywordlibrary
Website
Theme Cryosphere
Freshwater
Marine
Status Complete
Project DOI
Metadata Creation Date 2021
Publisher CanWIN
Related Facilities
Field Value
Project extent
Project Area Hudson Bay Complex
Spatial regions Hudson Bay
Spatial extent West Bound Longitude
Spatial extent East Bound Longitude
Spatial extent South Bound Latitude
Spatial extent North Bound Latitude
Temporal extent
Project Start Date 2016-09-01
Project End Date
Field Value
Project Contributors
Principal Investigators
Principal Investigators 1
Principal Investigator Name
Tremblay, J.-E.
Type of Name
Personal
Principal Investigator Email
jean-eric.tremblay@bio.ulaval.ca
Principal Investigator Affiliation
Université Laval
Principal Investigator ORCID ID
Co-Investigators
Co-Investigators 1
Co-Investigator Name
Swanson, G.
Co-Investigator Role
Project Leader
Co-Investigator Email
Co-Investigator Affiliation
Co-Investigator ORCID ID
Co-Investigators 2
Co-Investigator Name
Hunt, J.
Co-Investigator Role
Project Leader
Co-Investigator Email
Co-Investigator Affiliation
Co-Investigator ORCID ID
Project Data Curator Landry, David
Project Data Curator email David.Landry@umanitoba.ca
Project Data Curator Affiliation Centre for Earth Observation Science - University of Manitoba
Funder Information
Awards
Field Value
License Name Creative Commons Attribution 4.0 International
Licence Schema Name SPDX
Licence URL https://spdx.org/licenses
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