scholarly journals Bird Records from Great Slave Lake Region: A Preliminary List of Birds Observed by My 1907 Expedition into the Arctic Barren-Grounds of Canada

The Auk ◽  
1908 ◽  
Vol 25 (1) ◽  
pp. 68-74 ◽  
Author(s):  
Ernest Thompson Seton
Keyword(s):  
The Arctic ◽  
Lake Region ◽  
Great Slave Lake ◽  
Barren Grounds

Geographic and environmental factors affecting the distribution of kelp beds and barren grounds and changes in biota associated with kelp reduction at sites along the Norwegian coast

1997 ◽  
Vol 54 (12) ◽  
pp. 2872-2887 ◽  
Author(s):  
Knut Sivertsen
Keyword(s):  
Environmental Factors ◽  
Sea Urchins ◽  
Strongylocentrotus Droebachiensis ◽  
The Arctic ◽  
Laminaria Hyperborea ◽  
Factors Affecting ◽  
Kelp Beds ◽  
The Mean ◽  
Transition Areas ◽  
Barren Grounds

Sites at 244 locations along the west and north Norwegian coasts were investigated to evaluate whether kelp (Laminaria hyperborea) beds had been overgrazed by the sea urchins Strongylocentrotus droebachiensis and Echinus esculentus in the years 1981-1992. Barren ground communities were found in sheltered and moderately wave-exposed areas mainly in the inner and middle archipelago from Nordmøre (63°N) northwards. Densities of large-sized (adult and intermediate) L. hyperborea were 20.7 individuals ·m-2 in kelp beds and 9.7 individuals ·m-2 in transition areas. Juvenile Laminaria spp. were present at densities of 23.9 individuals ·m-2 in kelp beds, 3.6 individuals ·m-2 in transition areas, 0.0 individuals ·m-2 in barren grounds, and 59.1 individuals ·m-2 in kelp-harvested locations. Both the densities and the mean size of S. droebachiensis in barren grounds decreased northwards. The mean densities were 52.2 and 26.1 individuals ·m-2 for the areas south and north of the Arctic Circle, respectively. Multivariate analysis (CANOCO) showed that seven ``environmental'' factors (i.e., kelp depth gradient, distance (latitude), time of sampling, nematode infection in S. droebachiensis, wave exposure, coastal gradient, and substratum) contributed significantly to variability in the distribution of kelp beds and barren grounds. Species in hard-bottom communities in shallow waters could be divided into three distinct BIOTA.

Lichens of the Great Slave Lake Region, Northwest Territories, Canada

1969 ◽  
Vol 72 (2) ◽  
pp. 137 ◽  
Author(s):  
John W. Thomson ◽  
George W. Scotter ◽  
Teuvo Ahti
Keyword(s):  
Northwest Territories ◽  
Lake Region ◽  
Great Slave Lake

scholarly journals Phytogeographic Studies in the Athabaska -- Great Slave Lake Region

1936 ◽  
Vol 17 (4) ◽  
pp. 241-315
Author(s):  
Hugh M Raup
Keyword(s):  
Lake Region ◽  
Great Slave Lake

Observations on the Proterozoic Seton Formation, East Arm of Great Slave Lake, Northwest Territories

1972 ◽  
Vol 9 (9) ◽  
pp. 1110-1123 ◽  
Author(s):  
M. A. D. Olade ◽  
R. D. Morton
Keyword(s):  
Northwest Territories ◽  
Volcanic Rocks ◽  
Chemical Analyses ◽  
Quartz Porphyry ◽  
Shallow Marine ◽  
Hypabyssal Intrusions ◽  
Lake Region ◽  
Great Slave Lake ◽  
Marine Sedimentation ◽  
Partial Chemical

The Proterozoic (Aphebian) Seton Formation is shown to extend across almost the entire length of the East Arm structural subprovince of the Great Slave Lake region, Northwest Territories. Earlier described as greenstones or basalts and recently as an andesite–rhyolite suite, the volcanic rocks which characterize the Seton Formation are clearly of spilitic–keratophyric affinity. The formation is composed of a sequence of marine to subaerial, spilitic basalt flows, trachytic flows, quartz keratophyric–and spilitic–basic pyroclastics, volcanic sandstones, jasper, banded ironstones, and intercalated marine epiclastic sedimentary rocks. Small hypabyssal intrusions of albite granophyre, albite, and quartz porphyry represent minor subvolcanic phases. Petrographic descriptions of the lavas and pyroclastic rocks from Toopon Lake, the Fort Reliance area, and Seton Island are augmented by partial chemical analyses of 15 lavas from the latter locality. The volcanic–sedimentary Seton Formation, 1300 m thick in the SW of the East Arm, and 40 m thick in the Fort Reliance district, should be classified as a member of the Sosan Group, being in part laterally equivalent to the Akaitcho River Formation and the upper Kluziai Formation. The Aphebian Coronation Geosyncline during Seton times was thus characterized by effusive (partially submarine) island volcanism in the SW of the region, contemporaneous with shallow marine sedimentation towards the northeast part of the basin.

scholarly journals Phytogeographic Studies in the Athabaska-Great Slave Lake Region, II

1946 ◽  
Vol 27 (1) ◽  
pp. 1-85
Author(s):  
Hugh M Raup
Keyword(s):  
Lake Region ◽  
Great Slave Lake ◽  
Region Ii

Lichens of the Great Slave Lake Region, Northwest Territories, Canada

1969 ◽  
Vol 72 (2) ◽  
pp. 137
Author(s):  
John W. Thomson ◽  
George W. Scotter ◽  
Teuvo Ahti
Keyword(s):  
Northwest Territories ◽  
Lake Region ◽  
Great Slave Lake

scholarly journals Discovery of one of Sir John Franklin's ships

Polar Record ◽  
2014 ◽  
Vol 51 (1) ◽  
pp. 107-108 ◽  
Author(s):  
William Barr
Keyword(s):  
Canadian Arctic ◽  
Coast Guard ◽  
The Arctic ◽  
Northwest Passage ◽  
Geographical Society ◽  
Great Slave Lake ◽  
Back River ◽  
Parks Canada ◽  
Canadian Navy

In the summer of 2014 a major search was mounted in the Canadian Arctic for H.M.S.ErebusandTerror, the ships of Sir John Franklin's expedition, the aim of which was to make a transit of the northwest passage. Beset in the ice to the northwest of King William Island in the summer of 1846, they were abandoned there by the 105 surviving members of their crews in the summer of 1848. The officers and men hoped to walk south to the mouth of the Back River, presumably to ascend that river in the hope of reaching the nearest Hudson's Bay Company's post at Fort Resolution on Great Slave Lake. None of them survived. The 2014 expedition, the Victoria Strait Expedition, mounted by a consortium which included Parks Canada, the Canadian Coast Guard, the Canadian Navy, the Royal Canadian Geographical Society, the Arctic Research Foundation, and One Ocean Adventure, had four ships at its disposal including the Canadian Coast Guard's icebreakerSir Wilfrid Laurier(Captain Bill Noon) and the Navy's HMCSKingston.

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