First Specimens of the Stonecat, Noturus flavus, from the Hudson Bay Drainage

1970 ◽  
Vol 27 (1) ◽  
pp. 170-172
Author(s):  
K. W. Stewart ◽  
C. C. Lindsey
Keyword(s):  
Ecological Factors ◽  
Red River ◽  
Hudson Bay ◽  
Noturus Flavus ◽  
Main Influence

Nine specimens of stonecat were taken in the Red River 16 km south of Winnipeg, Man. This is the only known collection of the species from the Hudson Bay drainage. Ecological factors seem to be the main influence confining the species to its present restricted northern locality.

Late Ordovician brachiopods Rafinesquina lata Whiteaves, 1896 and Kjaerina hartae n.sp. from southern Manitoba and the Hudson Bay Lowlands

1995 ◽  
Vol 32 (8) ◽  
pp. 1255-1266 ◽  
Author(s):  
Jisuo Jin ◽  
W. G. E. Caldwell ◽  
B. S. Norford
Keyword(s):  
Depositional Environment ◽  
Late Ordovician ◽  
Red River ◽  
Warm Water ◽  
Ventral Valve ◽  
Hudson Bay ◽  
Hudson Bay Lowlands ◽  
Cardinal Process

Examination of the Late Ordovician strophomenid brachiopod Rafinesquina lata Whiteaves, 1896 from the Selkirk Member of the Red River Formation of southern Manitoba reveals that the two syntypes actually represent two genera and two species, Oepikina lata and Kjaerina hartae n.sp. Specimens typically described as Rafinesquina lata by Whiteaves are large, thick-shelled, strongly but evenly concavo-convex, with randomly spaced, fine, concentric growth lamellae and a high ventral interarea. Affinity of the species to Oepikina lies in its unequal parvicostellae of the ventral valve, conspicuous dorsal peripheral rim, robust cardinal process, and strong lateral trans-muscle septa. Kjaerina hartae is easily distinguished from O. lata by its strongly geniculate and less massive shell, a much lower ventral interarea, prominent concentric rugae, and, internally, considerably weaker trans-muscle septa. The shells of O. lata and K. hartae are unusually large and suggest an open, shallow- and warm-water, subtidal depositional environment for the original sediments of the Selkirk Member of the Red River Formation. Common occurrences of K. hartae in the upper Portage Chute and Surprise Creek formations (Bad Cache Rapids Group) of the Hudson Bay Lowlands, together with other brachiopods and other groups of fossils, support the concept that the epicontinental seas once covering the Hudson Platform and the Williston Platform were connected during Late Ordovician (Maysvillian) time.

Cephalopods and a Beatricea from Akpatok Island

1936 ◽  
Vol 73 (7) ◽  
pp. 289-307 ◽  
Author(s):  
Aug. F. Foerste ◽  
Ian H. Cox
Keyword(s):  
Sea Level ◽  
Red River ◽  
Hudson Bay

SummaryThe cephalopods and stromatoporoid collected from Akpatok Island, Ungava Bay, N.W.T., in 1931, by Cox, are described by Foerste in this communication as follows:—Endoceras coxi sp. nov., Endoceras sp. (resembling E. coxi), Endoceras akpatokense Foerste, Endoceras two spp., Shamattawaceras cf. ascoceroides Foerste and Savage, Orthoceras ungavense Foerste, Spyroceras sp. (resembling S. balteatum (Bill.) in some respects), Spyroceras cf. aquilonare Troedsson), Spyroceras wordiei Foerste, Spyroceras two spp., Huronia septata Parks, Westonoceras sp., and Beatricea undulata Billings.Tentative correlations of the Akpatok limestones with other areas are drawn from this material. The greater part of the lime-stones appear to correlate with the Red River formation of Manitoba. The lowest horizons, containing Westonoceras, apparently correspond to part of the Nelson River formation of the Hudson Bay region; the intermediate horizon, with Shamattawaceras and Huronia, apparently to the Shamattawa formation of the same locality; while the horizon with Beatricea (650 feet above sea-level) is of Richmond age. The extent to which the remainder of the fauna, as yet identified, agrees with this is reviewed.

A Railroad to Hudson Bay!

1920 ◽  
Vol 123 (23) ◽  
pp. 568-569
Author(s):  
Anthony M. Rud
Keyword(s):  
Hudson Bay

Climate Change and Land Use Change of Rural Households in The Red River Delta, Vietnam

2013 ◽  
pp. 79-94
Author(s):  
Ngoc Luu Bich
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Agricultural Land ◽  
Rural Households ◽  
River Delta ◽  
Red River ◽  
Red River Delta ◽  
Sea Levels ◽  
Main Production ◽  
Farming Households

Climate change (CC) and its impacts on the socio-economy and the development of communities has become an issue causing very special concern. The rise in global temperatures, in sea levels, extreme weather phenomena, and salinization have occurred more and more and have directly influenced the livelihoods of rural households in the Red River Delta – one of the two regions projected to suffer strongly from climate change in Vietnam. For farming households in this region, the major and traditional livelihoods are based on main production materials as agricultural land, or aquacultural water surface Changes in the land use of rural households in the Red River Delta during recent times was influenced strongly by the Renovation policy in agriculture as well as the process of industrialization and modernization in the country. Climate change over the past 5 years (2005-2011) has started influencing household land use with the concrete manifestations being the reduction of the area cultivated and the changing of the purpose of land use.

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