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The Bay of Fundy, shown on the east coast of North America
The Bay of Fundy ( ) is a bay on the Atlanticmarker coast of North America, on the northeast end of the Gulf of Mainemarker between the Canadianmarker provinces of New Brunswickmarker and Nova Scotiamarker, with a small portion touching the U.S.marker state of Mainemarker. 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 Baymarker in northern Quebecmarker and the Severn Estuary in the UK. Some sources believe the name "Fundy" is a corruption of the French word "Fendu", meaning "split" , while others believe it comes from the Portuguese fondo, meaning "funnel."

The bay was also named Baie Française (French Bay) by explorer/cartographer Samuel de Champlain during a 1604 expedition led by Pierre Dugua, Sieur de Monts which resulted in a failed settlement attempt on St. Croix Islandmarker.

Portions of the Bay of Fundy, Shepody Baymarker and Minas Basinmarker, form one of six Canadian sites in the Western Hemisphere Shorebird Reserve Network, and is classified as a Hemespheric site. 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.

In July 2009, the Bay of Fundy was named as a finalist for the New 7 Wonders of Nature.


The Bay of Fundy at high tide
The same location at low tide

Folklore in the Mi'kmaq First Nation claims that the tides in the Bay of Fundy are caused by a giant whale splashing in the water. Oceanographers attribute it to tidal resonance resulting 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 flow in and out of the bay.

The quest for world tidal dominance has led to a rivalry between the Minas Basinmarker in the Bay of Fundy and the Leaf Basin in Ungava Baymarker, over which body of water lays claim to the highest tides in the world, with supporters in each region claiming the record.

The Canadian Hydrographic Service finally declared it a statistical tie, with measurements of a 16.8 metre (55.1 feet) tidal range in Leaf Basin for Ungava Bay and 17 metres (55.8 feet) at Burntcoat Headmarker for the Bay of Fundy. 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 cyclone named the “Saxby Gale”. The water level of 21.6 metres (70.9 feet) 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 Stationmarker consists of a dam and 18-MW power house on the Annapolis Rivermarker at Annapolis Royalmarker, 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 whales have 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 Mainemarker, 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 valley called the Fundy Basinmarker; as the rift began 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 range known 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 Ridge continued to separate North America, Europe, and Africa.


The upper part of the bay bifurcates, splitting into Chignecto Baymarker in the northeast and the Minas Basinmarker in the east. Chignecto Bay is further subdivided into Cumberland Basinmarker and Shepody Baymarker and the extreme eastern portion of Minas Basinmarker is called Cobequid Baymarker. 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 Chignectomarker defines Chignecto Baymarker whereas Cape Splitmarker defines the Minas Channel, leading to the Minas Basinmarker.

Overlooking the Bay of Fundy in Nova Scotia.
The lower part of the bay is also home to four important sub-basins: Passamaquoddy Baymarker and Back Bay on the New Brunswick shore, Cobscook Baymarker on the Maine shore, and the Annapolis Basinmarker on the Nova Scotia shore.

The bay is home to several islands, the largest of which is Grand Manan Islandmarker at the boundary with the Gulf of Mainemarker. Other important islands on the north side of the bay include Campobello Islandmarker, Moose Islandmarker, and Deer Islandmarker in the Passamaquoddy Baymarker area. Brier Islandmarker and Long Islandmarker can be found on the south side of the bay while Isle Hautemarker is in the upper bay off Cape Chignectomarker. Smaller islands and islets also exist in Passamaquoddy Bay, Back Bay, and Annapolis Basinmarker. The Five Islandsmarker, in the Minas Basin, are particularly scenic.


The bay receives the waters of several rivers, including:

The Bay of Fundy in early May.

New Brunswick

Nova Scotia

The Salmon River tidal bore 22 Oct 2009.

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 Falls where the river empties into the bay, in a gorge in the middle of the city of Saint Johnmarker.

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 Truromarker and the village of Maitland, where local ecotourism operators 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 Truromarker. The once-famous tidal bores on the Petitcodiac and Avon rivers have been severely disrupted as a result of causeway construction in the 1960s-1970s which have caused excessive siltation.


The largest population centre on the bay is the New Brunswick city of Saint Johnmarker.

Though up-river on the Petitcodiac, the city of Monctonmarker is also frequently associated with the Bay of Fundy.

The New Brunswick towns of St. Andrewsmarker, Blacks Harbourmarker, and Sackvillemarker as well as the Nova Scotia towns of Amherstmarker, Parrsboromarker, Truromarker, Windsormarker, Wolfvillemarker, Annapolis Royalmarker, and Digbymarker are also on the bay.

Ports and shipping

The port of Saint John gives access to the pulp and paper industry and the Irving oil refinery. Hantsport, Nova Scotiamarker, on the Avon River is also home to a pulp and paper mill and is the shipment point for raw gypsum exports to the United States. The ports of Bayside, New Brunswickmarker, (near St. Andrews) and Eastport, Mainemarker, 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 Guard adjusted 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 ferry services:

The Bay of Fundy's ports and basins have a long shipping and shipbuilding history. Among other accomplishments, Fundy ports produced the fastest ship in the world, the ship Marco Polo; the largest wooden ship ever built in Canada, the ship William D. Lawrence; and the first female sea captain in the western world, Molly Kool of Alma, New Brunswickmarker.

See also


External links

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