1. Geography

2. Toponymy

3. Natural environment
     Biosphere Reserve    Wildlife Sanctuary of Great Island    Nicolet Bird Sanctuary  

4. History

5. Environment

6. Disasters and tragedies

7. In popular culture

8. See also
     Related articles    Notes and references   External links 

Lake Saint Pierre ({{Lang-fr|link=no|Lac Saint-Pierre}}) is a lake in Quebec, Canada, a widening of the Saint Lawrence River between Sorel-Tracy and Trois-Rivières. It is located downstream, and northeast, of Montreal; and upstream, and southwest, of Quebec City. The end of the lake delimits the beginning of the estuary of Saint Lawrence.

This lake which is {{convert|32|km}} long (excluding Sorel Islands) and {{convert|14|km}} wide, is part of the St. Lawrence Seaway. Including its shoreline, islands, and wetlands, the lake is a nature reserve. The body of water is recognized as a Ramsar site^[2] and as a Biosphere Reserve,^[3] due to the presence of many marshes and wetlands that are frequented by waterfowl. Recreational activities on the river (such as fishing, boating, sailing, swimming, water skiing, nature observation) are active mainly in summer season. Sport fishing is particularly popular, including ice fishing, especially in the great bay of Pointe-du-Lac.

Around Lake Saint-Pierre, several recreational services are available including marinas, hotel services, restaurants, outfitters, docks, gas stations, and cruises.

Geography

Approximately 12,500 years ago, the retreat of the glaciers at the end of the last ice age resulted in a vast basin filled by the Champlain Sea. This sea extended from the city of Quebec to the east, and covered the Lower Mauricie, the Lower Laurentians, the lower part of the Ottawa Valley, Lake Ontario on the western side, and Lake Champlain USA) on the South side. The outline of the Champlain Sea is marked by ancient sandy shores where sand pits have been exploited. The water level has dropped some 8,000 years ago. The surface area of the watershed is {{convert|990,000|km2|sqmi|abbr=on}} (equivalent to more than 60% of the surface area of Quebec). 58% of the catchment area is located in the United States, 28% in Ontario and only 14% in Quebec (2.5% in direct tributaries, 0.07% in the littoral zone). Lake Saint-Pierre is linked to 11 administrative regions, 58 RCMs and 654 municipalities.^[4]

The lake is located in the Regional County Municipalities of Nicolet-Yamaska, Maskinongé, D'Autray, and Pierre-De Saurel, in addition to the city of Trois-Rivières. The shores of the lake affect several municipalities:

• North shore: Berthierville, Maskinongé, Louiseville, Yamachiche and Trois-Rivières (Pointe-du-Lac sector)
• South shore: Saint-Joseph-de-Sorel, Pierreville, Baie-du-Febvre and Nicolet.

Lake Saint-Pierre is fed by the St. Lawrence River (coming from the southwest) and the 14 main tributaries:

• North bank (from the mouth): Maskinongé River, Rivière du Loup (Mauricie), Yamachiche River, Glaises stream, Sables River;
• South bank (from the mouth): Yamaska River, Saint-François River, Colbert River, Landroche River, Des Frères River, Brielle River, Lemire River, Camille-Roy River, Nicolet River.

The average depth of the lake is only three meters.^[5] The channel of the seaway that has been dredged has a maximum depth of 11.3 m.

Toponymy

The lake was named by Samuel de Champlain following its passage on 29 June 1603, the day of the Saint-Pierre. The Abenaki called Lake Nebesek, which means at lac.^[6] Jacques Cartier, during his second voyage to Canada in 1535, had given him the name of "Angoulême".

Natural environment

This seasonally-flooded area is an important stopping point for hundreds of thousands of migrating waterfowl. It is also an important nesting area for herons: more have been counted here than in any other place in North America. In 1998, it was recognized as a wetland of international significance under the Ramsar Convention.

The wildlife experts have identified 23 species of mammals around Lake Saint-Pierre, one of the most abundant species is the muskrat (Ondatra zibethicus), which is found in abundance in the lake.^[7]

Biosphere Reserve

Lake Saint-Pierre was appointed Biosphere Reserve by UNESCO in 2000. The biosphere reserve of Lac-Saint-Pierre has an area of {{convert|480|km2}}, whose {{convert|31|km2}} in core areas and {{convert|124|km2}} in buffer zones. The core areas are composed of Wildlife Refuge Great Island and bird refuge Nicolet.

Nearly 290 species of birds, about 90 species of fish and 27 rare plants have been listed in this biosphere reserve.^[8]

Wildlife Sanctuary of Great Island

Wildlife Sanctuary of "Grande-Île" (Great Island) is located on Grande-île in the Archipelago of Saint-Pierre Lake. It has an area of {{convert|1.45|m2}}. This wildlife refuge was created in 1992 is the protection of one of the largest heron colonies in North America. It houses more than 5,000 herons.^[9]

Nicolet Bird Sanctuary

The "birds Nicolet refuge" is a protected area of {{convert|30|km2}} which protects a staging area for ducks and Canada goose and also a nesting area for waterfowl. National Defence has acquired the site in the 1950. The site was recognized as a rest area in 1969 and as a refuge in 1982.^[10]

History

Being the last freshwater basin of the St. Lawrence River and its geographical position, Lake Saint-Pierre has marked the history of French Canada in terms of the fishing industry, hunting, transportation including the St. Lawrence Seaway, pleasure boating, the settlement of surrounding lands, winter ice roads and ferries.

Samuel de Champlain wrote, in 1609: "On the south side, there are two rivers, one called the" Rivière du Pont (Nicolet) and the other of Gennes (Saint-François or Yamaska), which are very beautiful and in beautiful and good country. "

Environment

Since the years 1970s, the water quality of Lake Saint-Pierre has improved significantly, thanks to governmental requirements, such as:

• construction upstream of discharged water filtration centres, including those municipalities / cities and those of industries;
• cleaning the banks and bottom of the river, by municipalities/cities, organizations, businesses and riparian owners;
• revision of the composition of many manufactured products, thus reducing harmful emissions into the environment;
• implantation by riparian owners of regulated septic tanks;
• prohibition on discharge of waste water by boaters and commercial vessels;
• increased recycling of domestic and industrial waste, reducing the dumping of waste in nature;
• enhanced surveillance of water activities (e.g.: Canadian Coast Guard, Environment Ministry, Municipalities/Cities).

The traffic on the river is a significant factor concerning shoreline erosion due to waves produced, especially by large vessels using the St. Lawrence Seaway.^[11] Channel Seaway changed the course of the natural flow of the river. In places, the flow distribution in the lake due to some stagnation of water near the banks, creating a silting.

In the area of Nicolet, the lake bottom contains an undetermined unexploded warheads from the centre of military fire which has been in operation in the 1950s to the 2000s number.

Disasters and tragedies

Throughout history, Lake St. Pierre has been the theater of:

• Large disasters: flooding due to spring floods (usually from the beginning of April up to mid-May, sometimes until the end of May) often increased by tides,^[12] often sudden windstorms causing high waves, Spring debacles, icebreaking on winter roads on the water ... These forces of nature have often resulted in damage to waterfront facilities, equipment (such fishing equipment), buildings and boats. Sometimes debris drift (fishing huts, docks, craft ...);
• Major tragedies: sinking, drowning, hunting or fishing accidents, people in perdition or drifting on the ice ...

In the days when wood was being transported by the flow of rivers, lost wood logs floated on Lake Saint-Pierre, detached themselves from the wooden cords during the floods, or escaped from the booms on the rivers Adjacent (or upstream). These floating balls occasionally caused breakage to the boats. Sometimes, chores were organized to recover them.

On the north shore, between Maskinongé and Pointe-du-Lac, Highway 40 is a jetty protecting the land from rising or storm surges, High tide or during large floods. Some flooding is causing a significant increase in the area of Lake Saint-Pierre. The flood waters of April and May 2017 was particularly disastrous on the shores.

In popular culture

• Lac Saint-Pierre is the setting of the poem, folk ballad, and animated short, "the Wreck of the Julie Plante", by William Henry Drummond.
• It is also the scene of the farm that the title character tries to buy, in The Apprenticeship of Duddy Kravitz by Mordecai Richler.

See also

Related articles

• Biosphere reserve of Lac-Saint-Pierre
• Biophare Museum
• St. Lawrence River
• Champlain Sea
• Saint Lawrence Lowlands
• St. Lawrence Seaway
• Laviolette Bridge
• Archipelago of Saint-Pierre Lake

Notes and references

External links

• {{cite web |url= http://www.wetlands.org/reports/ris/4CA036en.pdf |title= Information sheet on Ramsar Wetlands: Lac Saint-Pierre |deadurl= yes |archiveurl= https://web.archive.org/web/20110604005826/http://www.wetlands.org/reports/ris/4CA036en.pdf |archivedate= 4 June 2011 |df= dmy-all }} {{small|(182 KB)}}
• Lac Saint Pierre Biosphere Reserve, Canada (UNESCO site)

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