Stream and lake sediment and water geochemical maps, Glace Bay, Cape Breton Municipality - Cape Breton County, Nova Scotia

From 1925 to 1933 inclusive, during the summer season, 8,774 cod were tagged at eight points along the coasts of Nova Scotia and Prince Edward Island and eight per cent were recaptured during the following years, none after the sixth.Cod performing a restricted migration (less than 40 kilometres) were found to be in the majority off Halifax from July to September and off Shelburne in June and August in certain areas.Near Seal island in June, off Shelburne in July and September, and off Glace Bay in July and August, the majority of the cod were found to show orderly extended migrations. In the first two instances this movement was shoreward in the summer and seaward to about 130 metres in the early winter. The Glace Bay cod moved from the offshore banks just west of the Laurentian channel to the Cape Breton vicinity in the summer, returning early in the winter.A small percentage of the various stocks of cod performed roving migrations.The complete forsaking of the Cape Breton district for the offshore banks in the winter is attributed to the unfavourable ice cold water, while south-westward of Canso the movement off shore is thought to be caused by the very warm water inshore in the autumn and continued through the influence of the cold inshore waters several months later.As they grow older, the Shelburne cod remain progressively a little farther off shore when they move to shoal water each summer.

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Airborne geophysical survey, Glace Bay, southeastern Cape Breton Island, Nova Scotia

10.4095/194010 ◽

1994 ◽

Author(s):

K L Ford

Keyword(s):

Nova Scotia ◽

Geophysical Survey ◽

Cape Breton Island ◽

Cape Breton ◽

Glace Bay

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Glace Bay Sheet, Cape Breton County, Nova Scotia

10.4095/107890 ◽

1938 ◽

Author(s):

A O Hayes ◽

W A Bell ◽

E A Goranson

Keyword(s):

Nova Scotia ◽

Cape Breton ◽

Glace Bay

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Bacteria in estuarine (Bras d'Or Lake) sediment

Canadian Journal of Microbiology ◽

10.1139/m70-065 ◽

1970 ◽

Vol 16 (5) ◽

pp. 373-389 ◽

Cited By ~ 3

Author(s):

E. H. Anthony

Keyword(s):

Nova Scotia ◽

Lake Sediment ◽

Membrane Filter ◽

Weight Basis ◽

Estuarine Environment ◽

Cape Breton Island ◽

Cape Breton ◽

Normalizing Transformations ◽

Board Ship ◽

Number Of Bacteria

The number of bacteria in sediment from an estuarine environment, salinity 20–25‰, in Cape Breton Island, Nova Scotia, was determined by membrane filter counts from 73 fresh (on board ship) and 67 frozen (in laboratory) samples from 20 stations and the results compared. Taylor's model (log variance = a + b log mean) was used to determine dispersion on filters and normalizing transformations in preference to aligning data with Poisson expectation via Fisher's χ2 test. Mean with 95% [Formula: see text] colonies per gram dry sediment [Formula: see text] from fresh samples. Variance between replicate filters was negligible. Most remaining variance was between samples. Conversion of counts to weight basis introduced negligible variance. Counts from frozen samples were less variable than those from fresh samples. Fresh and frozen counts correlated well after transformation. Freezing confirmed as a method of preserving sediment for bacterial counts. Distribution in sediment of bacteria detected by these counts was slightly overdispersed (aggregated). Chromogenic colonies were prominent in the counted flora and their significance is discussed.

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