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Fishing Weir
A fishing weir, fish weir, fishgarth or kiddle is an obstruction placed in tidal waters, or wholly or partially across a river, to direct the passage of, or trap fish. A weir may be used to trap marine fish in the intertidal zone as the tide recedes, fish such as salmon as they attempt to swim upstream to breed in a river, or eels as they migrate downstream. Alternatively, fish weirs can be used to channel fish to a particular location, such as to a fish ladder. Weirs were traditionally built from wood or stones. The use of fishing weirs as fish traps probably dates back prior to the emergence of modern humans, and have since been used by many societies around the world. In the Philippines, specific indigenous fishing weirs (a version of the ancient Austronesian stone fish weirs) are also known in English as fish corrals and barrier nets. Etymology The English word 'weir' comes from the Anglo-Saxon ''wer,'' one meaning of which is a device to trap fish. By region Africa A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Trap BKG
A fish (: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish into a single class (Pisces), modern phylogenetics views fish as a paraphyletic group. Most fish are cold-blooded, their body temperature varying with the surrounding water, though some large active swimmers like white shark and tuna can hold a higher core temperature. Many fish can communicate acoustically with each other, such as during courtship displays. The study of fish is known as ichthyology. The earliest fish appeared during the Cambrian as small filter feeders; they continued to evolve through the Paleozoic, diversifying into many forms. The earliest fish wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James River
The James River is a river in Virginia that begins in the Appalachian Mountains and flows from the confluence of the Cowpasture and Jackson Rivers in Botetourt County U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed April 1, 2011 to the Chesapeake Bay. The river length extends to if the Jackson River (Virginia), Jackson River, the longer of its two headwaters, is included. It is the longest river in Virginia. Jamestown, Virginia, Jamestown and Williamsburg, Virginia, Williamsburg, Virginia's first colonial capitals, and Richmond, Virginia, Richmond, Virginia's current capital, lie on the James River. History The Native American tribes in Virginia, Native Americans who populated the area east of the Atlantic Seaboard Fall Line, Fall Line in the late 16th and early 17th centuries called the James River the Powhatan River, named for the Powhatan, Powhatans who occupied the area. The Jamestown, Virginia, Jamestown colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hudson Bay Lowlands
The Hudson Bay Lowlands is a vast wetland located between the Canadian Shield and southern shores of Hudson Bay and James Bay. Most of the area lies within the province of Ontario, with smaller portions reaching into Manitoba and Quebec. Many wide and slow-moving rivers flow through this area toward the saltwater of Hudson Bay: these include the Churchill, Nelson and Hayes in Manitoba, Severn, Fawn, Winisk, Asheweig, Ekwan, Attawapiskat, and Albany in Ontario, and the Harricana, Rupert and Eastmain in Quebec. This is the largest wetland in Canada, and one of the largest in the world.Abraham, K.F. and C.J. Keddy. The Hudson Bay Lowland. Pages 118–148 in L.H. Fraser and P.A. Keddy (eds.). 2005. The World's Largest Wetlands: Ecology and Conservation. Cambridge University Press, Cambridge, UK. 488 p. The region can be subdivided into three bands running roughly northwest to southeast: the Coastal Hudson Bay Lowland (a narrow band along the northern coast), Hudson Bay Lowla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cree
The Cree, or nehinaw (, ), are a Indigenous peoples of the Americas, North American Indigenous people, numbering more than 350,000 in Canada, where they form one of the country's largest First Nations in Canada, First Nations. They live primarily to the north and west of Lake Superior in the Provinces and territories of Canada, provinces of Alberta, Labrador, Manitoba, the Northwest Territories, Ontario, and Saskatchewan. Another roughly 27,000 live in Quebec. In the United States, the Cree, historically, lived from Lake Superior westward. Today, they live mostly in Montana, where they share Rocky Boy's Indian Reservation with Ojibwe (Chippewa) people. A documented westward migration, over time, has been strongly associated with their roles as traders and hunters in the North American fur trade. Sub-groups and geography The Cree are generally divided into eight groups based on dialect and region. These divisions do not necessarily represent ethnic subdivisions within th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Columbia
British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, forests, lakes, mountains, inland deserts and grassy plains. British Columbia borders the province of Alberta to the east; the territories of Yukon and Northwest Territories to the north; the U.S. states of Washington (state), Washington, Idaho and Montana to the south, and Alaska to the northwest. With an estimated population of over 5.7million as of 2025, it is Canada's Population of Canada by province and territory, third-most populous province. The capital of British Columbia is Victoria, British Columbia, Victoria, while the province's largest city is Vancouver. Vancouver and its suburbs together make up List of census metropolitan areas and agglomerations in Canada, the third-largest metropolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herring
Herring are various species of forage fish, belonging to the Order (biology), order Clupeiformes. Herring often move in large Shoaling and schooling, schools around fishing banks and near the coast, found particularly in shallow, temperate waters of the North Pacific Ocean, North Pacific and North Atlantic Oceans, including the Baltic Sea, as well as off the west coast of South America. Three species of ''Clupea'' (the type genus of the herring family Clupeidae) are recognised, and comprise about 90% of all herrings captured in fisheries. The most abundant of these species is the Atlantic herring, which comprises over half of all herring capture. Fish called herring are also found in the Arabian Sea, Indian Ocean, and Bay of Bengal. Herring played an important role in the history of marine fisheries in Europe, and early in the 20th century, their study was fundamental to the development of fisheries science. These oily fish also have a long history as an important food fish, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Fundy
The Bay of Fundy () is a bay between the Canadian provinces of New Brunswick and Nova Scotia, with a small portion touching the U.S. state of Maine. It is an arm of the Gulf of Maine. Its tidal range is the highest in the world. The bay was named ''Bakudabakek'' by the indigenous Mi'kmaq and Passamaquoddy groups, meaning "open way". The Wolastoqiyik peoples named it ''Wekwabegituk'', meaning "waves at the head of the bay". The name "Fundy" has been speculated to have derived from the French word ("split") or ("head of the bay"). Some individuals have disputed this, including William Francis Ganong, who suggested that the name likely derived from Portuguese origin instead, specifically regarding João Álvares Fagundes, who may have referred to the bay as ("Great Bay") and nearby waters as ("deep river"). Hydrology Tides The tidal range in the Bay of Fundy is about ; the average tidal range worldwide is only . Some tides are higher than others, depending on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tide
Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables can be used for any given locale to find the predicted times and amplitude (or " tidal range"). The predictions are influenced by many factors including the alignment of the Sun and Moon, the phase and amplitude of the tide (pattern of tides in the deep ocean), the amphidromic systems of the oceans, and the shape of the coastline and near-shore bathymetry (see '' Timing''). They are however only predictions, the actual time and height of the tide is affected by wind and atmospheric pressure. Many shorelines experience semi-diurnal tides—two nearly equal high and low tides each day. Other locations have a diurnal tide—one high and low tide each day. A "mixed tide"—two uneven magnitude tides a day—is a third regular category. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shubenacadie River
The Shubenacadie River () is a river in Nova Scotia, Canada. It has a meander length of approximately 72 km from its source at Shubenacadie Grand Lake to its mouth at the community of Maitland on the Cobequid Bay. The lower 30 km of the river (from the point where the Stewiacke River meets to the mouth) is tidal and the river experiences a tidal bore twice daily, with some bores reaching up to 3 m in height at certain points along the river. Local tourism operators offer adventure seekers a chance to ride with the bore on high-horse power Zodiac Hurricanes. Tidal Bore Rafting was invented at the Tidal Bore Rafting Resort by H. Knoll. It is also a popular surfing spot for experienced sea kayakers. The river flows through part of northern Halifax County, forming the boundary with Hants County before forming the boundary between Hants and Colchester County. The Shubenacadie Valley hosts a diversified agricultural economy and is also experiencing suburban sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shad
The Alosidae, or the shads, are a family (biology), family of clupeiform fishes. The family currently comprises four genera worldwide, and about 32 species. The shads are Pelagic fish, pelagic (open water) schooling fish, of which many are anadromous or even landlocked. Several species are of commercial importance, e.g. in the genus ''Alosa'' (river herrings), ''Brevoortia'' (menhadens), and ''European pilchard, Sardina''. The Alosidae were previously included in the herring family Clupeidae. Genera Alosidae contains the following 4 genera: *''Alosa'' Heinrich Friedrich Linck, H. F. Linck, 1790 (Shads) *''Brevoortia'' Theodore Gill, Gill, 1861 (Menhadens) *''European pilchard, Sardina'' Grigore Antipa, Antipa, 1904 (European pilchard) *''Sardinops'' Carl Leavitt Hubbs, C. L. Hubbs, 1929 (Blue pilchard) The following fossil Alosidae are also known: * †''Eoalosa'' Marramà & Carnevale, 2017 (early Eocene of Italy) * †''Moldavichthys'' Baykina & Schwarzhans, 2017 (mid-late Mioc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nova Scotia
Nova Scotia is a Provinces and territories of Canada, province of Canada, located on its east coast. It is one of the three Maritime Canada, Maritime provinces and Population of Canada by province and territory, most populous province in Atlantic Canada, with an estimated population of over 1 million as of 2024; it is also the second-most densely populated province in Canada, and second-smallest province by area. The province comprises the Nova Scotia peninsula and Cape Breton Island, as well as 3,800 other coastal islands. The province is connected to the rest of Canada by the Isthmus of Chignecto, on which the province's land border with New Brunswick is located. Nova Scotia's Capital city, capital and largest municipality is Halifax, Nova Scotia, Halifax, which is home to over 45% of the province's population as of the 2021 Canadian census, 2021 census. Halifax is the List of census metropolitan areas and agglomerations in Canada, twelfth-largest census metropolitan area in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boylston Street Fishweir
In archeological literature, the name Boylston Street Fishweir refers to ancient fishing structures first discovered in 1913, buried below Boylston Street in Boston, Massachusetts. Reports written in 1942 and 1949 describe what was thought to be remains of one large Fishing weir, fishweir, 2,500 years old, made of up to 65,000 wooden stakes distributed over an estimated of the former mud flat and marshland in what is now the Back Bay, Boston, Back Bay section of Boston. A different interpretation of these findings is offered by new evidence and contemporary archeological research techniques. Fish weir description and use Throughout the world, Fishing weir, fish weirs, wooden fence-like structures built to catch fish, are used in tidal and river conditions as a passive method to trap fish during the cycle from low to high tide, or in river flow. Fish weirs built in places of large tidal change, between ebb and flow, are built with vertical support poles holding woven nets. Fish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
