Mercury, Methylmercury, and Microbial Communities in a Degrading Palsa of the Hudson Bay Lowlands, Far North Ontario

2021 ◽  
Author(s):  
Adam H. Kirkwood ◽  
Pascale Roy-Léveillée ◽  
Brian A. Branfireun ◽  
Nathan Basiliko
Keyword(s):  
Microbial Communities ◽  
Hudson Bay ◽  
Hudson Bay Lowlands ◽  
Far North

scholarly journals Range extensions for Northern Redbelly Dace (Chrosomus eos), Fathead Minnow (Pimephales promelas), and Iowa Darter (Etheostoma exile) in Ontario, Canada

2015 ◽  
Vol 129 (3) ◽  
pp. 237 ◽  
Author(s):  
Derek E. Goertz ◽  
R. Dean Phoenix
Keyword(s):  
Fish Species ◽  
Fathead Minnow ◽  
Pimephales Promelas ◽  
Hudson Bay ◽  
Small Fish ◽  
Geographic Ranges ◽  
Hudson Bay Lowlands ◽  
Far North ◽  
Species Occurrences

Relatively little is known of the distribution of small fish in the far north of Ontario, Canada, particularly in the Hudson Bay Lowlands. Between 2009 and 2014, we sampled 81 locations across six study areas in Ontario’s far north to determine the extent of species occurrences beyond their reported ranges. We used galvanized minnow traps and a standardized effort as well as incidental sampling that included dip and seine netting. We documented 25 fish species across the region, including three species beyond their known geographic ranges: Northern Redbelly Dace (Chrosomus eos, Cyprinidae), Fathead Minnow (Pimephales promelas, Cyprinidae), and Iowa Darter (Etheostoma exile, Percidae).

Relict ice-scour marks and late phases of Lake Agassiz in northernmost Manitoba

1982 ◽  
Vol 19 (5) ◽  
pp. 1079-1087 ◽  
Author(s):  
L. A. Dredge
Keyword(s):  
Marine Sediment ◽  
Glacial Lake ◽  
Hudson Bay ◽  
Glacial Lakes ◽  
Lake Agassiz ◽  
Glacial Ice ◽  
Hudson Bay Lowlands ◽  
Far North

In northern Manitoba, intersecting grooves 300–1800 m long are ice-scour marks created by the dragging of iceberg keels along rises in the bed of a glacial lake whose water plane was at about 305 m asl. The lake was bounded by glacial ice on its northern and eastern margins. The occurrence of scours on topographic divides indicates that a single extensive lake, thought to be a northern extremity of Lake Agassiz, occupied the area as far north as Seal River at the time the ice scours were formed. The lake extended as far west as Sprott Lake and eastwards into the Hudson Bay Lowlands into an area later occupied by Tyrrell Sea. The preservation of the scour marks suggests that the lake drained suddenly.Ice-scour marks are easily recognized on air photographs and provide a means of identifying areas that have been inundated by glacial lakes. Scours in emerged marine sediment are generally obliterated by littoral processes.

Constraining the age of the last interglacial–glacial transition in the Hudson Bay lowlands (Canada) using U–Th dating of buried wood

2012 ◽  
Vol 7 ◽  
pp. 37-47 ◽  
Author(s):  
G. Allard ◽  
M. Roy ◽  
B. Ghaleb ◽  
P.J.H. Richard ◽  
A.C. Larouche ◽  
...  
Keyword(s):  
Hudson Bay ◽  
Last Interglacial ◽  
Hudson Bay Lowlands

scholarly journals Bird trends from long-term observation data at sites in the Hudson Bay Lowlands

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Rodney W. Brook ◽  
Lisa A. Pollock ◽  
Kenneth F. Abraham ◽  
Glen S. Brown
Keyword(s):  
Hudson Bay ◽  
Observation Data ◽  
Hudson Bay Lowlands ◽  
Long Term Observation

scholarly journals Late Pleistocene chronology, palaeoecology and stratigraphy at a suite of sites along the Albany River, Hudson Bay Lowlands, Canada

2018 ◽  
Vol 492 ◽  
pp. 50-63 ◽  
Author(s):  
April S. Dalton ◽  
Sarah A. Finkelstein ◽  
Peter J. Barnett ◽  
Minna Väliranta ◽  
Steven L. Forman
Keyword(s):  
Late Pleistocene ◽  
Hudson Bay ◽  
Hudson Bay Lowlands
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