Atlantic Marine (ecozone)

Atlantic Marine (ecozone)

The Atlantic is a Canada marine ecozone that stretches from the Davis Strait to encompass the Grand Banks, to the Avalon Peninsula on the shores of Newfoundland. It includes all of the southern coast of Newfoundland, all the eastern coast of Nova Scotia, and portions of the Bay of Fundy and the Gulf of Maine.

The waters of this zone have been overfished, and in 1992 the Government of Canada banned cod fishing, though there are no restrictions on other species. Shellfish species, including lobster, shrimp, and crab, have become an increasing component of the fishing industry, which has been in decline. Since the late 1990s, the Hibernia oil field has become an important economic resource for Newfoundland and Labrador, and the Terra Nova oil field is increasingly important to Nova Scotia. Further oil and gas exploration is being conducted on the Scotian Shelf.Cite web
url=http://www.ec.gc.ca/soer-ree/English/vignettes/Marine/atlantic/human.cfm
title=Human Activities in the Atlantic Marine Ecozone
work=Atlantic Marine Ecozone
publisher=Environment Canada
accessdate=2008-02-09]

Geography

Most of the waters in this zone are thousands of metres deep,Cite web
url=http://canadianbiodiversity.mcgill.ca/english/ecozones/atlanticmarine/atlanticmarine.htm
title=Atlantic Marine
work=Canada's Ecozones, Canadian Biodiversity project
last=Bernhardt
first=Torsten
publisher=McGill University, Redpath Museum
accessdate=2008-02-09] with the exception of the Grand Banks which average about 150 metres before the sea floor drops precipitously beyond the continental shelf.

Climate

Exceptionally dense fog is common where the cold Labrador Current merges with the warm Gulf Stream.Cite web
url=http://www.ec.gc.ca/soer-ree/English/vignettes/Marine/atlantic/land.cfm
title=Landforms and Climate of the Atlantic Marine Ecozone
work=Atlantic Marine Ecozone
publisher=Environment Canada
accessdate=2008-02-09] By late winter, thick icebergs traverse the northern regions of this ecozone, from Greenland to Newfoundland. They have been feared by mariners for centuries, resulting in the zone's colloquial name "Iceberg Alley".Cite web
url=http://www.ec.gc.ca/soer-ree/English/vignettes/Marine/atlantic/default.cfm
title="Iceberg Alley"
work=Atlantic Marine Ecozone
publisher=Environment Canada
accessdate=2008-02-09] Tidal ranges throughout the zone are moderate, typically a few metres. The exception is the Bay of Fundy, whose famous tides may top 15 metres.

Surface water temperatures in August may reach 10°C in the north, and up to 23°C in the south.

In spring, phytoplankton biomass increases significantly, becoming a rich source of food within the ecozone.Cite web
url=http://www.ec.gc.ca/soer-ree/English/vignettes/Marine/atlantic/plants.cfm
title=Plants of the Atlantic Marine Ecozone
work=Atlantic Marine Ecozone
publisher=Environment Canada
accessdate=2008-02-13]

References


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