- Bay of Fundy
The Bay of Fundy ( _fr. Baie de Fundy) is a bay on the Atlantic coast of
North America, on the northeast end of the Gulf of Mainebetween the Canadian provinces of New Brunswickand Nova Scotia, with a small portion touching the U.S. state of Maine. The Bay of Fundy is known for its high tidal range and the bay is contested as having the highest vertical tidal range in the world with Ungava Bayin northern Quebecand The Severn Estuary in the UK. The name "Fundy" is thought to date back to the 16th century when the Portuguese referred to the bay as "Rio Fundo" or "deep river".
The bay was also named Baie Française (French Bay) by explorer/cartographer
Samuel de Champlainduring a 1604 expedition led by Pierre Dugua, Sieur de Montswhich resulted in a failed settlement attempt on St. Croix Island.
Portions of the Bay of Fundy,
Shepody Bayand Minas Basin, form one of six Canadian sites in the Western Hemisphere Shorebird Reserve Network, and is classified as a "Hemespheric" site.Cite web
Western Hemisphere Shorebird Reserve Network
accessdate=2008-02-18] It is owned by the provinces of New Brunswick and Nova Scotia, and the
Canadian Wildlife Service, and is managed in conjunction with Ducks Unlimited Canada and the Nature Conservancy of Canada.
Folklore in the
Mi'kmaq First Nationclaims that the tides in the Bay of Fundy are caused by a giant whale splashing in the water. Oceanographers attribute it to tidal resonanceresulting from a coincidence of timing: the time it takes a large wave to go from the mouth of the bay to the inner shore and back is practically the same as the time from one high tide to the next. During the 12.4 hour tidal period, 115 billion tonnes of water traverses in and out of the bay. [cite web | url = http://www.town.parrsboro.ns.ca/hightides.html| title = World's Highest Tides - Town of Parrsboro, Nova Scotia| accessdate = 2007-09-10]
The quest for world tidal dominance has led to a rivalry between the
Minas Basinin the Bay of Fundy and the Leaf Basin in Ungava Bay, over which body of water lays claim to the highest tides in the world, with supporters in each region claiming the record.
Canadian Hydrographic Servicefinally declared it a statistical tie, with measurements of a 16.8 metre tidal range in Leaf Basin for Ungava Bay and 17 metres at Burntcoat Head, Nova Scotiafor the Bay of Fundy. [cite web|url=http://www.canadainfolink.ca/pqmap.htm |title=Teaching & Learning about Canada|accessdate=2007-09-26] The highest water level ever recorded in the Bay of Fundy system occurred at the head of the Minas Basin on the night of October 4–5, 1869 during a tropical cyclonenamed the “Saxby Gale”. The water level of 21.6 metres resulted from the combination of high winds, abnormally low atmospheric pressure, and a spring tide.
Leaf Basin has only been measured in recent years, whereas the Fundy system has been measured for many decades. Tidal experts note that Leaf Basin is consistently higher on "average" tides than Minas Basin; however, the highest recorded tidal ranges ever measured are at Burntcoat Head and result from "spring" tides measured at the peak of the tidal cycle every 18 years.
Tidal electrical power generation
Several proposals to build tidal harnesses for electrical power generation have been put forward in recent decades. Such proposals have mainly involved building barrages which effectively dam off a smaller arm of the bay and extract power from water flowing through them.
One such facility, (the only one of its kind currently operating) the
Annapolis Royal Generating Stationconsists of a dam and 18-MW power house on the Annapolis Riverat Annapolis Royal, Nova Scotia, but larger proposals have been held back by a number of factors, including environmental concerns. The Annapolis Royal Generating Station has been studied for its various effects, including an accelerated shoreline erosion problem on the historic waterfront of the town of Annapolis Royal, as well as increased siltation and heavy metal and pesticide contamination upstream due to lack of regular river/tidal flushing. There have also been instances where large marine mammals such as whaleshave become trapped in the head pond after transiting the sluice gates during slack tide.
Damming a large arm of the Bay of Fundy would have significant effects, as yet inadequately understood, both within the dammed bay itself and in the surrounding regions. Intertidal habitats would be drastically affected and a facility would bring the bay closer to resonance, increasing tidal range over a very large area. One effect could be an increase in tidal range of 0.2 m (from approximately 1 m) for certain coastal sites in
Maine, possibly leading to flooding.
There have been proposals in recent years for installing
aquanators, the underwater equivalent to wind turbines, which would not require any damming or blockading of parts of the bay but would instead generate electricity solely by being placed in areas of high water flow, such as at choke points or merely along the floor of any part of the bay which sees significant water movement.
The Bay of Fundy lies in a
rift valleycalled the Fundy Basinwhich formed as the supercontinent Pangaeabegan to break up about 190 million years ago. As the riftbegan to separate from mainland North America, volcanic activity occurred, forming volcanoes and flood basalts. These flood basalts poured out over the landscape, covering much of southern Nova Scotia. Sections of the flood basalts have been eroded away, but still form a basaltic mountain rangeknown as North Mountain. As a result, much of the basin floor is made of tholeiitic basalts giving its brown colour. The rift valley eventually failed ("see" aulacogen) as the Mid-Atlantic Ridgecontinued to separate North America, Europe, and Africa.
The upper part of the bay
bifurcates, splitting into Chignecto Bayin the northeast and the Minas Basinin the east. Chignecto Bay is further subdivided into Cumberland Basin and Shepody Bayand the extreme eastern portion of Minas Basinis called Cobequid Bay. Some of these upper reaches exhibit exposed red bay muds, for which the Bay of Fundy is noted (for their appearance and biological productivity). Cape ChignectoNova Scotia defines Chignecto Baywhereas Cape Split, Nova Scotiadefines the Minas Channel, leading to the Minas Basin.
The lower part of the bay is also home to four important sub-basins:
Passamaquoddy Bayand Back Bay on the New Brunswick shore, Cobscook Bayon the Maine shore, and the Annapolis Basinon the Nova Scotia shore.
The bay is home to several islands, the largest of which is
Grand Manan Islandat the boundary with the Gulf of Maine. Other important islands on the north side of the bay include Campobello Island, Moose Island, and Deer Island in the Passamaquoddy Bayarea. Brier Islandand Long Island can be found on the south side of the bay while Isle Haute is in the upper bay off Cape Chignecto. Smaller islands and islets also exist in Passamaquoddy Bay, Back Bay, and Annapolis Basin. The Five Islands, in the Minas Basin, are particularly scenic.
The bay receives the waters of several rivers, including:
Saint John River
*St. Croix River
The bay's extreme tidal range causes several interesting phenomena in the various rivers which empty into it.
The Saint John River sees its flow reversed at high tide, causing a series of rapids at the famous
Reversing Fallswhere the river empties into the bay, in a gorge in the middle of the city of Saint John.
Rivers in the upper Bay of Fundy have a smaller flow-rate than the Saint John, and a shallower slope. As a result, extensive mud flats are deposited throughout the tidal range of the rivers.
Another phenomenon which occurs in these rivers of the upper bay is a "
tidal bore", whereby the river flow is completely reversed by the rising tide. One of the better examples of a tidal bore can be seen on the Shubenacadie River near the town of Truro and the village of Maitland, where local ecotourismoperators offer the chance to experience rafting the bore upriver. Another good example of a tidal bore may be viewed on the Salmon River in the town of Truro. The once-famous tidal bores on the Petitcodiac and Avon rivers have been severely disrupted as a result of causewayconstruction in the 1960s-1970s which have caused excessive siltation.
The largest population centre on the bay is the New Brunswick city of Saint John.
Though up-river on the Petitcodiac, the city of
Monctonis also frequently associated with the Bay of Fundy.
The New Brunswick towns of St. Andrews, Blacks Harbour, and Sackville as well as the Nova Scotia towns of Amherst, Parrsboro, Truro, Windsor, Wolfville, Annapolis Royal, and Digby are also on the bay.
Ports and shipping
The port of Saint John gives access to the
pulp and paperindustry and the Irving oil refinery. Hantsport, Nova Scotia, on the Avon River is also home to a pulp and paper mill and is the shipment point for raw gypsumexports to the United States. The ports of Bayside, New Brunswick, (near St. Andrews) and Eastport, Maine, are important local ports.
A result of shipping traffic has been the potential for increased collisions between ships and the North Atlantic Right Whale. In 2003, the
Canadian Coast Guardadjusted shipping lanes crossing prime whale feeding areas at the entrance to the Bay of Fundy to lessen the risk of collision.
The bay is also traversed by several passenger and automobile
Saint John, New Brunswick, to Digby, Nova Scotia. (Operated by Bay Ferries Limited.)
* Grand Manan Island to
Blacks Harbour, New Brunswick. White Head Island, New Brunswick, to Grand Manan Island. (Operated by Coastal Transport Limited.)
* Deer Island to
Letete, New Brunswick. (Operated by New Brunswick Department of Transportation.)
Campobello Island, New Brunswick, to Deer Island. Eastport, Maine, to Deer Island. (Operated by East Coast Ferries Limited.)
Westport, Nova Scotia, (Brier Island) to Freeport, Nova Scotia, (Long Island). Tiverton, Nova Scotia, (Long Island) to East Ferry, Nova Scotia. (Operated by Nova Scotia Department of Transportation and Public Works.)
Central Nova Tourist Association— Tourism Association Representing Cumberland and Colchester County.
* [http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=17305 NASA Earth Observatory]
* [http://www.fundyfun.com Fundy Fun - Bay of Fundy Travel and Tourism Information Site]
* [http://bayoffundytourism.com Official Bay of Fundy Tourist Site]
* [http://www.bayoffundy.ca The Bay of Fundy Connection - a directory with resources and news]
* [http://www.centralnovascotia.com Central Nova Tourist Association]
* [http://bayoffundy.blogspot.com/ Bay of Fundy Blog]
* [http://www.quoddyloop.com/ The Quoddy Loop around Passamaquoddy Bay, in the Bay of Fundy]
* [http://www.eastcoastferries.nb.ca/timetables.htm East Coast Ferries Ltd., running seasonally in Passamaquoddy Bay, in the Bay of Fundy]
* [http://www.savepassamaquoddybay.org/ Save Passamaquoddy Bay 3-Nation Alliance, protecting a nursery of the Bay of Fundy]
* [http://www.brierisland.com Brier Island Lodge Westport, Digby Neck Nova Scotia The number and variety of whale species along the Bay of Fundy coast is impressive.]
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Look at other dictionaries:
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