The Pacific Maritime Ecozone, as defined by the Commission for Environmental Cooperation (CEC), is a Canadian terrestrial ecozone, spanning a strip approximately 200 kilometres wide along the British Columbia Coast, then narrowing along the border with

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S. ...

. It also includes all marine islands of British Columbia and a small portion of the southwestern corner of the

Yukon Yukon (; ; formerly called Yukon Territory and also referred to as the Yukon) is the smallest and westernmost of Canada's three territories. It also is the second-least populated province or territory in Canada, with a population of 43,964 as ...

. Fourteen ecoregions comprise the Ecozone, ranging from the Mount Logan Ecoregion in the north to the Cascade Ecoregion and Lower Mainland Ecoregion in the south. The name of the comparable ecozones in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

, where Level II ecoregions correspond to the international term "ecozone", are the Marine West Coast Forest and the

Northwestern Forested Mountains The Northwestern Forested Mountains is a Level I ecoregion of North America designated by the Commission for Environmental Cooperation (CEC) in its North American Environmental Atlas. Hydrology Most of the water in this ecoregion is fresh ...

ecoregions. In the

floristic province A phytochorion, in phytogeography, is a geographic area with a relatively uniform composition of plant species. Adjacent phytochoria do not usually have a sharp boundary, but rather a soft one, a transitional area in which many species from both r ...

system, the region is described as part of the Rocky Mountain Floristic Region. Also in use is a system of biogeoclimatic zones defined and used by the British Columbia government, which defines the same area as the Coastal Western Hemlock zone, though a small portion flanking the Strait of Georgia comprises the Coastal Douglas-fir zone. In the different ecoregion system established by the

World Wildlife Fund The World Wide Fund for Nature Inc. (WWF) is an international non-governmental organization founded in 1961 that works in the field of wilderness preservation and the reduction of human impact on the environment. It was formerly named the Wo ...

, the region corresponds to the

Pacific temperate rain forests The Pacific temperate rainforests of western North America is the largest temperate rain forest region on the planet as defined by the World Wildlife Fund (other definitions exist). The Pacific temperate rainforests lie along the western side ...

ecoregion, sub-ecoregions of which are the Haida Gwaii ecoregion, Vancouver Island ecoregion, and British Columbia mainland coastal forests ecoregions.

Geography

This ecozone is the most diverse in Canada, and perhaps the world. Its northern inland extent is primarily alpine tundra, whereas the picturesque northern coast features numerous

fjord In physical geography, a fjord or fiord () is a long, narrow inlet with steep sides or cliffs, created by a glacier. Fjords exist on the coasts of Alaska, Antarctica, British Columbia, Chile, Denmark, Förden and East Jutland Fjorde, Germany, ...

s and valleys, with massive glaciers common in the mountains. To the south, the small flatland of the

Fraser Valley The Fraser Valley is a geographical region in southwestern British Columbia, Canada and northwestern Washington State. It starts just west of Hope in a narrow valley encompassing the Fraser River and ends at the Pacific Ocean stretching from the ...

is located at the southern end of the Coast Mountains, noted for temperate rainforests. In its marine areas are notable undersea kelp forests. Lying on the

Pacific Ring of Fire The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) is a region around much of the rim of the Pacific Ocean where many volcanic eruptions and earthquakes occur. The Ring o ...

, it exhibits many

hot spring A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by c ...

Ecoprovinces

This ecozone can be further subdivided into three ecoprovinces: * Georgia Depression * Northern Coastal Mountains * Southern Coastal Mountains

Climate

This zone experiences the warmest and wettest climate in Canada. The lower

Georgia Strait The Strait of Georgia (french: Détroit de Géorgie) or the Georgia Strait is an arm of the Salish Sea between Vancouver Island and the extreme southwestern mainland coast of British Columbia, Canada and the extreme northwestern mainland coast ...

may receive as little as 600 mm of annual

precipitation In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail. ...

, but other areas in this zone receive as much as 3,000 mm. Moderated by the influence of the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contin ...

, the zone experiences mild

winter Winter is the coldest season of the year in polar and temperate climates. It occurs after autumn and before spring. The tilt of Earth's axis causes seasons; winter occurs when a hemisphere is oriented away from the Sun. Different cultur ...

s and cool summers. Mean temperatures vary little throughout the year; January means are between 4 and 6 °C, and July means are between 12 and 18 °C.

Flora and fauna

The region is the only home for some species of birds, including the

American black oystercatcher The black oystercatcher (''Haematopus bachmani'') is a conspicuous black bird found on the shoreline of western North America. It ranges from the Aleutian Islands of Alaska to the coast of the Baja California peninsula. The black oystercatcher ...

, the chestnut-backed chickadee and the

tufted puffin The tufted puffin (''Fratercula cirrhata''), also known as crested puffin, is a relatively abundant medium-sized pelagic seabird in the auk family (Alcidae) found throughout the North Pacific Ocean. It is one of three species of puffin that make ...

. The

Gulf Islands The Gulf Islands are a group of islands in the Salish Sea between Vancouver Island and the mainland coast of British Columbia. Etymology The name "Gulf Islands" comes from "Gulf of Georgia," the original term used by George Vancouver in his ...

and

Saanich Peninsula Saanich Peninsula ( str, W̱SÁNEĆ) is located north of Victoria, British Columbia, Canada. It is bounded by Saanich Inlet on the west, Satellite Channel on the north, the small Colburne Passage on the northeast, and Haro Strait on the east. The ...

contain "the last remnants of the highly endangered

Garry oak ecosystem ''Quercus garryana'' is an oak tree species of the Pacific Northwest, with a range stretching from southern California to southwestern British Columbia. It is commonly known as the Oregon white oak or Oregon oak or, in Canada, the Garry oak. It ...

". The

Great Bear Rainforest The Great Bear Rainforest is a temperate rain forest on the Pacific coast of British Columbia, Canada comprising 6.4 million hectares. It is part of the larger Pacific temperate rainforest ecoregion, which is the largest coastal temperate rain ...

is located entirely within this ecozone.

Conservation

National parks

Four

national parks A national park is a natural park in use for conservation purposes, created and protected by national governments. Often it is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individua ...

have been established in this ecozone: *

Gulf Islands National Park Reserve Gulf Islands National Park Reserve is a national park located on and around the Gulf Islands in British Columbia, Canada. In the National Parks System Plan, this park provides representation of the Strait of Georgia Lowlands natural region, the ...

Gwaii Haanas National Park Reserve and Haida Heritage Site Gwaii Haanas National Park Reserve, National Marine Conservation Area, and Haida Heritage Site, usually referred to simply as Gwaii Haanas (), is located in southernmost Haida Gwaii (formerly known as Queen Charlotte Islands), off the mainland of ...

Kluane National Park and Reserve Kluane National Park and Reserve (; french: Parc national et réserve de parc national de Kluane) are two protected areas in the southwest corner of the territory of Yukon. The National Park Reserve was set aside in 1972 to become a national pa ...

Pacific Rim National Park Reserve Pacific Rim National Park Reserve is a national park located in British Columbia, Canada, which comprises three separate regions: Long Beach, the Broken Group Islands, and the West Coast Trail. Its the Pacific Coast Mountains, are characterized ...

Provincial parks

Dozens of provincial parks have been established in this ecozone. Some of the largest and most notable ones include: *

Fiordland Conservancy The Fiordland Conservancy, also known as the Fiordland Recreation Area formerly, and since also as the Fiordland Conservation Area, is a conservancy in British Columbia, Canada. It preserves a portion of the province's coast containing glacial f ...

Garibaldi Provincial Park Garibaldi Provincial Park, also called Garibaldi Park, is a wilderness park located on the coastal mainland of British Columbia, Canada, 70 kilometres (43.5 mi) north of Vancouver. It was established in 1920 and named a Class A Provincial ...

Juan de Fuca Provincial Park Juan de Fuca Provincial Park is a provincial park located on the west coast of Vancouver Island in British Columbia, Canada. The park was established on April 4, 1996 by combining three former parks - China Beach, Loss Creek, and Botanical Beach ...

Kitlope Heritage Conservancy The Kitlope Heritage Conservancy or Huchsduwachsdu Nuyem Jees ("source of milky blue waters") in the Haisla language, is a conservancy located on the Pacific coast of the province of British Columbia, Canada. It preserves the largest continuous ...

* Strathcona Provincial Park *

Tatshenshini-Alsek Provincial Park Tatshenshini-Alsek Park or Tatshenshini-Alsek Provincial Wilderness Park is a provincial park in British Columbia, Canada . It was established in 1993 after an intensive campaign by Canadian and American conservation organizations to halt mining e ...

References

{{Reflist Ecozones and ecoregions of British Columbia Geography of Yukon Geography of the Pacific Northwest