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Moxostoma Carinatum
The river redhorse (''Moxostoma carinatum'') is a species of freshwater fish endemic to the eastern half of the United States and southeastern Canada. They can range from 10 to 30 inches in length and can potentially reach a weight of more than 10 pounds after maturity. It is typically found in clear, large creeks and rivers, though it is sometimes also found in lakes. They are sometimes speared or caught with hook and line using crayfish or worms as bait. A bottom-feeder, it feeds on mussels, snails, crustaceans and immature aquatic insects. Its common names include big-sawed sucker, river mullet, greater redhorse, redfin redhorse and redhorse sucker. It has the following characteristics: Distribution The river redhorse occurs throughout the central and eastern Mississippi River System and the Gulf Slope from Florida to Louisiana. In Canada, its distribution is characterized by disjunct populations in southern Ontario and Quebec as well as Alberta. This species has declined co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Drinker Cope
Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American zoologist, paleontologist, comparative anatomist, herpetologist, and ichthyologist. Born to a wealthy Quaker family, Cope distinguished himself as a child prodigy interested in science; he published his first scientific paper at the age of 19. Though his father tried to raise Cope as a gentleman farmer, he eventually acquiesced to his son's scientific aspirations. Cope married his cousin and had one child; the family moved from Philadelphia to Haddonfield, New Jersey, although Cope would maintain a residence and museum in Philadelphia in his later years. Cope had little formal scientific training, and he eschewed a teaching position for field work. He made regular trips to the American West, prospecting in the 1870s and 1880s, often as a member of United States Geological Survey teams. A personal feud between Cope and paleontologist Othniel Charles Marsh led to a period of intense fossil-finding competition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thames River (Ontario)
The Thames River is located in southwestern Ontario, Canada. The Thames flows southwestly through southwestern Ontario, from the Town of Tavistock through the cities of Woodstock, London and Chatham to Lighthouse Cove on Lake St. Clair. Its drainage basin is . The river is also known as Deshkaan-ziibi / Eshkani-ziibi ("Antler River") in the Ojibwe language, spoken by Anishnaabe peoples who, along with the Neutrals prior to the disappearance in the 17th century, have lived in the area since before Europeans arrived. This name was anglisized as "Escunnisepe" as the first English name of the river. In 1793, Lieutenant Governor John Graves Simcoe named the river after the River Thames in England. Early French Canadians referred to it as La Tranche, due to the wide and muddy waters of its lower section. Much of the Thames was formerly surrounded by deciduous Carolinian forests, but much of this forest has been removed to permit agriculture and other forms of development. Two c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indicator Species
A bioindicator is any species (an indicator species) or group of species whose function, population, or status can reveal the qualitative status of the environment. The most common indicator species are animals. For example, copepods and other small water crustaceans that are present in many water body, water bodies can be monitored for changes (biochemical, physiological, or behavioural) that may indicate a problem within their ecosystem. Bioindicators can tell us about the cumulative effects of different pollution, pollutants in the ecosystem and about how long a problem may have been present, which Water pollution#Measurement, physical and chemical testing cannot. A biological monitor or biomonitor is an organism that provides quantitative property, quantitative information on the quality of Environment (biophysical), the environment around it. Therefore, a good biomonitor will indicate the presence of the pollutant and can also be used in an attempt to provide additional inform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Fragmentation
Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological processes that slowly alter the layout of the physical environment (suspected of being one of the major causes of speciation), and human activity such as land conversion, which can alter the environment much faster and causes the extinction of many species. More specifically, habitat fragmentation is a process by which large and contiguous habitats get divided into smaller, isolated patches of habitats. Definition The term habitat fragmentation includes five discrete phenomena: * Reduction in the total area of the habitat * Decrease of the interior: edge ratio * Isolation of one habitat fragment from other areas of habitat * Breaking up of one patch of habitat into several smaller patches * Decrease in the average size of each patch of habitat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood Control
Flood control methods are used to reduce or prevent the detrimental effects of flood waters."Flood Control", MSN Encarta, 2008 (see below: Further reading). Flood relief methods are used to reduce the effects of flood waters or high water levels. Flooding can be caused by a mix of both natural processes, such as extreme weather upstream, and human changes to waterbodies and runoff. Though building hard infrastructure to prevent flooding, such as flood walls, can be effective at managing flooding, increased best practice within landscape engineering is to rely more on soft infrastructure and natural systems, such as marshes and flood plains, for handling the increase in water. For flooding on coasts, coastal management practices have to not only handle changes water flow, but also natural processes like tides. Flood control and relief is a particularly important part of climate change adaptation and climate resilience, both sea level rise and changes in the weather (climate cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectricity
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other Renewable energy, renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of Low-carbon power, low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltation
Siltation, is water pollution caused by particulate terrestrial clastic material, with a particle size dominated by silt or clay. It refers both to the increased concentration of suspended sediments and to the increased accumulation (temporary or permanent) of fine sediments on bottoms where they are undesirable. Siltation is most often caused by soil erosion or sediment spill. It is sometimes referred to by the ambiguous term "sediment pollution", which can also refer to a chemical contamination of sediments accumulated on the bottom, or to pollutants bound to sediment particles. Although "siltation" is not perfectly stringent, since it also includes particle sizes other than silt, it is preferred for its lack of ambiguity. Causes The origin of the increased sediment transport into an area may be erosion on land or activities in the water. In rural areas, the erosion source is typically soil degradation by intensive or inadequate agricultural practices, leading to soil eros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbidity
Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of water quality. Fluids can contain suspended solid matter consisting of particles of many different sizes. While some suspended material will be large enough and heavy enough to settle rapidly to the bottom of the container if a liquid sample is left to stand (the settable solids), very small particles will settle only very slowly or not at all if the sample is regularly agitated or the particles are colloidal. These small solid particles cause the liquid to appear turbid. Turbidity (or haze) is also applied to transparent solids such as glass or plastic. In plastic production, haze is defined as the percentage of light that is deflected more than 2.5° from the incoming light direction. Causes and effects Turbidity in open water may be caused by growth of phyto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Lawrence River
The St. Lawrence River (french: Fleuve Saint-Laurent, ) is a large river in the middle latitudes of North America. Its headwaters begin flowing from Lake Ontario in a (roughly) northeasterly direction, into the Gulf of St. Lawrence, connecting the American Great Lakes to the North Atlantic Ocean, and forming the primary drainage outflow of the Great Lakes Basin. The river traverses the Canadian provinces of Ontario and Quebec, as well as the U.S. state of New York, and demarcates part of the international boundary between Canada and the United States. It also provides the foundation for the commercial St. Lawrence Seaway. Names Originally known by a variety of names by local First Nations, the St. Lawrence became known in French as ''le fleuve Saint-Laurent'' (also spelled ''St-Laurent'') in 1604 by Samuel de Champlain. Opting for the ''grande riviere de sainct Laurens'' and ''fleuve sainct Laurens'' in his writings and on his maps, de Champlain supplanted previous Fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaska River
The Yamaska River is a river in southern Quebec, Canada. Sourcing water within the Eastern Townships, it ends its journey in Lake Saint-Pierre where it is a tributary to the Saint Lawrence River; altogether it is long. Crossing nearly twenty municipalities in its course, it is intrinsically linked to life around it as it is a primary source of fresh water where it passes; due to human use and adaptation, the river and its banks have become heavily altered over time, beginning around the time the first European settlers arrived to modern days. Before exploitation, the river was rich with life. Urban, industrial, and intensive agricultural use have made it one of the most polluted rivers in Quebec, especially from agricultural waste and pesticides; nevertheless, many municipalities use it as their source for drinking water.Développement durable, de l'Environnement et des Parcs Québec, ''Bassin versant de la rivière Yamaska – Modifier nos pratiques agricoles... la priorité' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chateauguay River
The Chateauguay River (or Chateaugay River in the United States, moh, Oshahrhè:’onKaronhí:io Delaronde and Jordan Engel, The Decolonial Atlas, Haudenosaunee Country in Mohawk, February 4, 201Link/ref>) is a tributary of the South Shore of the St. Lawrence River, flowing in: * Clinton County and Franklin County, in the Adirondacks, in New York State, in United States; * the Le Haut-Saint-Laurent Regional County Municipality: crossing the municipalities of Huntingdon, Ormstown and Howick, in Montérégie, in Quebec, in Canada; * the MRC of Beauharnois-Salaberry Regional County Municipality: municipality of Sainte-Martine, in Montérégie; * the MRC of Roussillon Regional County Municipality: city of Mercier, in Montérégie. This valley is mainly served by the following roads: * in Quebec (East side, from the mouth): boulevard Salaberry Nord, boulevard Salaberry Sud, chemin du rang Roy, chemin de la Beauce, rue Saint-Joseph, boulevard Saint-Jean-Baptiste-Ouest ( route 138), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ottawa River
The Ottawa River (french: Rivière des Outaouais, Algonquin: ''Kichi-Sìbì/Kitchissippi'') is a river in the Canadian provinces of Ontario and Quebec. It is named after the Algonquin word 'to trade', as it was the major trade route of Eastern Canada at the time. For most of its length, it defines the border between these two provinces. It is a major tributary of the St. Lawrence River and the longest river in Quebec. Geography The river rises at Lac des Outaouais, north of the Laurentian Mountains of central Quebec, and flows west to Lake Timiskaming. From there its route has been used to define the interprovincial border with Ontario. From Lake Timiskaming, the river flows southeast to Ottawa and Gatineau, where it tumbles over Chaudière Falls and further takes in the Rideau and Gatineau rivers. The Ottawa River drains into the Lake of Two Mountains and the St. Lawrence River at Montreal. The river is long; it drains an area of , 65 per cent in Quebec and the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
