...Janghan Lee; Andrew Tefs; Virginie Galindo; Tricia Stadnyk; Michel Gosselin; Jean-Éric Tremblay Hudson Bay (HB), a large subarctic inland sea, is impacted by rapid climate change and anthropogenic disturbance. HB plays crucial roles in supporting resident and migratory species of birds and marine...

... observation using satellite remote sensing. Algorithms for colored dissolved organic matter (CDOM) and total suspended solids (TSS) were applied to moderate resolution imaging spectroradiometer (MODIS) imagery to study Nelson and Hayes river plume dispersion into southwestern Hudson Bay, employing quantile...

... into the euphotic zone. This phenomenon is often referred to as a phytoplankton fall bloom, and can play an essential role in the survival of marine species during winter. In Hudson Bay, we found that pelagic fall blooms are triggered when the convective mixing, forced mainly by atmospheric cooling and to a lesser...

...Kaushik Gupta; Anirban Mukhopadhyay; David G. Babb; David G. Barber; Jens K. Ehn Through analysis of Canadian Ice Service ice charts, we have characterized the temporal and spatial variability of landfast sea ice (or fast ice) surrounding Hudson Bay and James Bay from 2000 to 2019. Over this 19...

... to the number of individuals recruiting to the adult population: These expectations define the freshwater winter refuge hypothesis. More than 42 rivers drain into Hudson Bay making it particularly well suited to test this hypothesis. Whereas the bulk of Arctic cod observed in Hudson Bay hatch between mid-April...

...Jennifer Bruneau; David Babb; Wayne Chan; Sergei Kirillov; Jens Ehn; John Hanesiak; David G. Barber Within the dynamic seasonal ice cover of Hudson Bay, the Kivalliq Polynya is a large latent heat polynya that forms throughout winter in the northwest as a result of strong northwesterly offshore...

... International License (CC-BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See http://creativecommons.org/licenses/by/4.0/ . Microbial eukaryotes Arctic Ocean Hudson Bay Estuary Freshwater gradient Maximum...

... of the Hudson Bay Drainage Basin. We compare a 19-member ensemble to a 5-member subset to demonstrate comparability of the driving climate used to produce model results. Ten extreme climate indicators and their changes are compared for the full study region and seven sub regions, on an annual and seasonal basis...

...L. C. Matthes; J. K. Ehn; L. A. Dalman; D. G. Babb; I. Peeken; M. Harasyn; S. Kirillov; J. Lee; S. Bélanger; J.-É. Tremblay; D. G. Barber; C. J. Mundy Pertinent environmental factors influencing the microalgal bloom during sea-ice breakup in Hudson Bay were investigated in June 2018, producing...

... During a research expedition in Hudson Bay in June 2018, vast areas of thick (>10 m), deformed sediment-laden sea ice were encountered unexpectedly in southern Hudson Bay and presented difficult navigation conditions for the Canadian Coast Guard Ship Amundsen. An aerial survey of one of these floes...

.... Here, we show the patterns and main processes controlling seawater p CO 2 and sea–air CO 2 fluxes in Hudson Bay during the 2018 spring and early summer seasons. We observed spatially limited p CO 2 supersaturation (relative to the atmosphere) near river mouths and beneath sea ice and widespread...

...-to-sea transitions are poorly known. To bridge this knowledge gap, we investigated three river-to-sea transitions (Nelson, Churchill, and Great Whale Rivers) in sub-Arctic Hudson Bay through 18S rRNA amplicon sequencing to identify microbial eukaryotes along the salinity and biogeochemical gradients...

...Igor A. Dmitrenko; Paul G. Myers; Sergei A. Kirillov; David G. Babb; Denis L. Volkov; Jennifer V. Lukovich; Ran Tao; Jens K. Ehn; Kevin Sydor; David G. Barber Hudson Bay of northern Canada receives upward of 700 km 3 of river discharge annually. Cyclonic water circulation in Hudson Bay transports...

...Mohamed M. M. Ahmed; Brent G. T. Else; David Capelle; Lisa A. Miller; Tim Papakyriakou The objective of this study is to quantify the impact of freshwater stratification on the vertical gradients of partial pressure of CO 2 ( p CO 2 ) and estimates of air-sea CO 2 exchange in Hudson Bay during peak...

...Madison L. Harasyn; Dustin Isleifson; Wayne Chan; David G. Barber; Jody W. Deming; Stephen F. Ackley Monitoring the trend of sea ice breakup and formation in Hudson Bay is vital for maritime operations, such as local hunting or shipping, particularly in response to the lengthening of the ice-free...

...Jonathan Andrews; David Babb; David G. Barber; Jody W. Deming, Ph.D.; Stephen F. Ackley, B.S. The seasonally ice-covered waters of Hudson Bay, James Bay, Foxe Basin, and Hudson Strait (“the study area”) are bordered by 39 communities with a total population of roughly 50,000 people, most of whom...

...Jonathan Andrews; David Babb; David G. Barber; Jody W. Deming; Stephen F. Ackley Shipping traffic has been increasing in Hudson Strait and Hudson Bay and the shipping route through these waters to the Port of Churchill may soon become a federally-designated transportation corridor. A dataset...