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Thomsen River
The Thomsen River, located in the Northwest Territories of Canada, is the northernmost usable river of the country. It is famous for canoeing. Course It flows across Banks Island in the Canadian Arctic Archipelago, and flows northward through Aulavik National Park before it empties through the Castel Bay into the M'Clure Strait (part of the Viscount Melville Sound of the Arctic Ocean). Fishing The Thomsen River on northern Banks Island has been described as the most northerly multi-species river in North America. At least three fish species, lake trout (''Salvelinus namaycush''), least cisco (''Coregonus sardinella''), and ninespine stickleback (''Pungitius pungitius''), reach their known northern limit of distribution in the Thomsen River while the Arctic char (''Salvelinus alpinus'') is a common species. Lake whitefish (''Coregonus clupeaformis'') may also occur in upper reaches of the Thomsen and marine fourhorn sculpin (''Myoxocephalus quadricornis'') are occasionally found i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Trout
The lake trout (''Salvelinus namaycush'') is a freshwater char living mainly in lakes in northern North America. Other names for it include mackinaw, namaycush, lake char (or charr), touladi, togue, and grey trout. In Lake Superior, it can also be variously known as siscowet, paperbelly and lean. The lake trout is prized both as a game fish and as a food fish. Those caught with dark coloration may be called ''mud hens''. Taxonomy It is the only member of the subgenus ''Cristovomer'', which is more derived than the subgenus '' Baione'' (the most basal clade of ''Salvelinus'', containing the brook trout (''S. fontinalis'') and silver trout (''S. agasizii'')) but still basal to the other members of ''Salvelinus''. Range From a zoogeographical perspective, lake trout have a relatively narrow distribution. They are native only to the northern parts of North America, principally Canada, but also Alaska and, to some extent, the northeastern United States. Lake trout have been wide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of The Americas By Coastline
This list of rivers of the Americas by coastline includes the major coastal rivers of the Americas arranged by country. A link to a map of rivers with known coordinates is listed at right. The ocean coasts are demarcated as follows: *Arctic Ocean coast (including Hudson Bay) from Cape Prince of Wales east to Cape Chidley *Atlantic Ocean coast from Cape Chidley south to Cape Virgins *Pacific Ocean coast from Cape Prince of Wales south to Cape Virgins *Endorheic basin coast (drainage basins not reaching oceans) This is a counterpart to the primarily alphabetical List of rivers of the Americas and other lists of rivers of countries, although only rivers which reach the ocean are included here, not tributaries. Arctic Ocean coast In the Americas, only the United States, Canada, and Greenland have rivers on the Arctic Ocean coast. Greenland is surrounded by the Barents Sea (part of the Arctic Ocean), the Greenland Sea (often described as part of the Arctic Ocean), Baffin Bay t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of The Northwest Territories
This is a list of rivers that are in whole or partly in the Northwest Territories, Canada. By watershed Arctic Ocean watershed * Back River (Nunavut) ;Canadian Arctic Archipelago *Hornaday River (Nunavut) * Kagloryuak River (Nunavut) * Nanook River (Nunavut) *Roscoe River (Nunavut) *Thomsen River ;Beaufort Sea watershed * Anderson River * Horton River (Nunavut) * Mackenzie River & watershed **Great Slave Lake watershed ***Slave River (Alberta) **** Salt River (Alberta) *** Hay River (Alberta & British Columbia) ***Yellowknife River ***Cameron River ***Taltson River *** Lockhart River **Kakisa River (Alberta) **Horn River **Bouvier River **Redknife River ** Trout River **Jean Marie River **Spence River ** Rabbitskin River **Liard River (Yukon & British Columbia) ***South Nahanni River (Yukon) ***Muskeg River *** Kotaneelee River (Yukon) ***Frances River **Harris River ** Martin River **Trail River ** North Nahanni River ** Root River ** Willowlake River ** River Between Two Mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fourhorn Sculpin
The fourhorn sculpin (''Myoxocephalus quadricornis'') is a species of fish in the family Cottidae. It is a demersal fish distributed mainly in brackish arctic coastal waters in Canada, Greenland, Russia, and Alaska, and also as a relict in the boreal Baltic Sea. There are also freshwater populations in the lakes of Norway, Sweden, Finland and Karelia (NW Russia) and in Arctic Canada (Nunavut and Northwest Territories). The deepwater sculpin ''Myoxocephalus thompsonii'' of continental North American freshwater lakes (e.g., the Great Lakes) is closely related to the fourhorn sculpin and alternatively considered as a subspecies of the latter, ''Myoxocephalus quadricornis thompsonii''. Description The fourhorn sculpin has a large knobbly head with protruding lips and four bony protuberances, though the latter are not present in freshwater, lake forms of this fish. The pectoral fins are large and rounded. Freshwater forms resemble the Alpine bullhead and European bullhead but can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Whitefish
The lake whitefish (''Coregonus clupeaformis'') is a species of freshwater whitefish from North America. Lake whitefish are found throughout much of Canada and parts of the northern United States, including all of the Great Lakes. The lake whitefish is sometimes referred to as a "humpback" fish due to the small size of the head in relation to the length of the body.Roland Sigurdson (2011Lake whitefishMinnesota Department of Natural Resources Species Profile. 19 April. 2012 It is a valuable commercial fish, and also occasionally taken by sport fishermen. Smoked, refrigerated, vacuum-packed lake whitefish fillets are available in North American grocery stores. Other vernacular names used for this fish include ''Otsego bass'', ''Sault whitefish'', ''gizzard fish'', ''common whitefish, eastern whitefish, Great Lakes whitefish, humpback whitefish, inland whitefish'' and ''whitefish''. Etymology The scientific genus name ''Coregonus'' (co-regg'-on-us) means "angle eye" in Greek and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic Char
The Arctic char or Arctic charr (''Salvelinus alpinus'') is a cold-water fish in the family Salmonidae, native to alpine lakes and arctic and subarctic coastal waters. Its distribution is Circumpolar North. It spawns in freshwater and populations can be lacustrine, riverine, or anadromous, where they return from the ocean to their fresh water birth rivers to spawn. No other freshwater fish is found as far north; it is, for instance, the only fish species in Lake Hazen which extend up to on Ellesmere Island in the Canadian Arctic. It is one of the rarest fish species in Great Britain and Ireland, found mainly in deep, cold, glacial lakes, and is at risk there from acidification. In other parts of its range, such as the Nordic countries, it is much more common, and is fished extensively. In Siberia, it is known as ''golets'' () and it has been introduced in lakes where it sometimes threatens less hardy endemic species, such as the small-mouth char and the long-finned char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ninespine Stickleback
The ninespine stickleback (''Pungitius pungitius''), also called the ten-spined stickleback, is a freshwater species of fish in the family Gasterosteidae that inhabits temperate waters. It is widely but locally distributed throughout Eurasia and North America. Despite its name, the number of spines can vary from 8 to 12. Description The body of the ninespine stickleback tapers to a very narrow caudal peduncle and the caudal fin is fan-shaped. The body is less deep and more elongated than that of the three-spined stickleback with a thinner and longer caudal peduncle, but the best way of distinguishing these two species is the number of spines in front of the dorsal fin which, for this species, varies from seven to twelve although nine is the commonest number. This species does not have scales but there is a group of small bony plates on the narrowest part of the caudal peduncle at the lateral line. The mouth points upwards in this species. It is generally greyish or olive-brown wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coregonus Sardinella
''Coregonus sardinella'', known as the least cisco or the sardine cisco, is a fresh- and brackishwater salmonid fish that inhabits rivers, estuaries and coastal waters of the marginal seas of the Arctic Basin, as well as some large lakes of those areas. In North America it is found from the Murchison River (Nunavut) west through the Bering Strait to the Bristol Bay (Bering Sea) in Alaska, and in the Russian Arctic from the northern part of the Bering Sea across the Siberian Arctic coast to the Kara Sea and Kara River and further to the Pechora River drainage on the European side. Sendek DS (2021Phylogenetic relationships in vendace and least cisco, and their distribution areas in western Eurasia.''Annales Zoologici Fennici'' 58: 289–306. It has been introduced in some lakes and rivers in Uzbekistan and Kazakhstan. ''Coregonus sardinella'' is closely related to the European cisco or vendace ''Coregonus albula'', and also is close to the Siberian peled whitefish ''C. peled' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic Ocean
The Arctic Ocean is the smallest and shallowest of the world's five major oceans. It spans an area of approximately and is known as the coldest of all the oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it the Arctic Mediterranean Sea. It has been described approximately as an estuary of the Atlantic Ocean. It is also seen as the northernmost part of the all-encompassing World Ocean. The Arctic Ocean includes the North Pole region in the middle of the Northern Hemisphere and extends south to about 60°N. The Arctic Ocean is surrounded by Eurasia and North America, and the borders follow topographic features: the Bering Strait on the Pacific side and the Greenland Scotland Ridge on the Atlantic side. It is mostly covered by sea ice throughout the year and almost completely in winter. The Arctic Ocean's surface temperature and salinity vary seasonally as the ice cover melts and freezes; its salinity is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northwest Territories
The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly ''North-Western Territory'' and ''North-West Territories'' and namely shortened as ''Northwest Territory'') is a federal territory of Canada. At a land area of approximately and a 2016 census population of 41,790, it is the second-largest and the most populous of the three territories in Northern Canada. Its estimated population as of 2022 is 45,605. Yellowknife is the capital, most populous community, and only city in the territory; its population was 19,569 as of the 2016 census. It became the territorial capital in 1967, following recommendations by the Carrothers Commission. The Northwest Territories, a portion of the old North-Western Territory, entered the Canadian Confederation on July 15, 1870. Since then, the territory has been divided four times to create new provinces and territories or enlarge existing ones. Its current borders date from April 1, 1999, when the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viscount Melville Sound
Viscount Melville Sound is an arm of the Arctic Ocean in the Kitikmeot Region, Nunavut and the Inuvik Region, Northwest Territories, Canada. Forming part of the Parry Channel, it separates Victoria Island and Prince of Wales Island from the Queen Elizabeth Islands. East of the sound, via Barrow Strait, lies Lancaster Sound, leading into Baffin Bay; westward lies the M'Clure Strait and the Arctic Ocean/Beaufort Sea. The sound is a part of the Northwest Passage. In 1854, Edward Belcher abandoned his ship, HMS ''Resolute'', in the sound while searching for Sir John Franklin and his lost expedition. In 1855 HMS ''Resolute'' was found drifting off Baffin Island Baffin Island (formerly Baffin Land), in the Canadian territory of Nunavut, is the largest island in Canada and the fifth-largest island in the world. Its area is , slightly larger than Spain; its population was 13,039 as of the 2021 Canadia ..., and was later ceremonially returned to Queen Victoria. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
