BIOLOGICAL AND OCEANOGRAPHIC CONDITIONS IN HUDSON BAY: I. HUDSON BAY AND THE DETERMINATION OF FISHERIES

The waters of Hudson bay, though potentially rich, do not present suitable conditions for the development of fisheries of any magnitude. Fresh water from an extensive drainage basin mixes only superficially with the salt water, so that the bay has an estuarial character, apart from the somewhat barren deeper arctic water, with the fisheries largely those of the rivers emptying into it.

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BIOLOGICAL AND OCEANOGRAPHIC CONDITIONS IN HUDSON BAY. 8. THE COREGONINE FISHES OF HUDSON AND JAMES BAYS

Contributions to Canadian Biology and Fisheries ◽

10.1139/f33-001 ◽

1933 ◽

Vol 8 (1) ◽

pp. 1-12 ◽

Cited By ~ 4

Author(s):

J. R. DYMOND

Keyword(s):

Great Lakes ◽

Fresh Water ◽

Sexual Maturity ◽

Lake Michigan ◽

Salt Water ◽

Lake Ontario ◽

Hudson Bay ◽

Coregonus Clupeaformis ◽

Saginaw Bay ◽

Oceanographic Conditions

Specimens of Coregonus clupeaformis, Prosopium quadrilaterale and Leucichthys artedi from Hudson and James bays are quite similar to specimens of the same species from the Great Lakes; Prosopium shows the most divergence.Coregonus does not grow as large in salt water as in fresh water lakes of the same latitude; its rate of growth is more rapid than that of whitefish in lake Nipigon, but slower than in lake Ontario; spawning fish are usually at least seven years old.For the first two or three years Leucichthys grows more slowly, but later more rapidly than in lake Ontario or Saginaw bay, lake Michigan; it also reaches a larger size than is usual in the Great Lakes; sexual maturity is probably not attained until at least the fourth year.

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BIOLOGICAL AND OCEANOGRAPHIC CONDITIONS IN HUDSON BAY: 6. THE GENERAL HYDROGRAPHY AND HYDRODYNAMICS OF THE WATERS OF THE HUDSON BAY REGION

Contributions to Canadian Biology and Fisheries ◽

10.1139/f32-009 ◽

1932 ◽

Vol 7 (1) ◽

pp. 91-118 ◽

Cited By ~ 3

Author(s):

H. B. HACHEY

Keyword(s):

Fresh Water ◽

Water Movement ◽

Open Ocean ◽

Hudson Bay ◽

Water Drainage ◽

James Bay ◽

Bay Area ◽

Hydrographic Conditions ◽

The Many ◽

Oceanographic Conditions

The waters of Hudson bay differ markedly from the waters of Hudson strait and the waters of the open ocean. Intense stratification in the upper twenty-five metres, decreasing as the waters of the open ocean are approached, gives Hudson bay the character of a large estuary. Below fifty metres the waters are for all purposes dynamically dead, thus resulting in a cold saline body of water which probably undergoes very little change from season to season. The movements of the waters at various levels are dealt with to show that the inflow of waters from Fox channel and the many fresh-water drainage areas control the hydrographic conditions as found. The main water movement is from the James bay area to Hudson strait and thence to the open ocean.

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