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Hemimysis Anomala
The bloody-red mysid, ''Hemimysis anomala'', is a shrimp-like crustacean in the Mysida order, native to the Ponto-Caspian region, which has been spreading across Europe since the 1950s. In 2006, it was discovered to have invaded the North American Great Lakes. Distribution The species is native to freshwater margins of the Black Sea, the Azov Sea and the eastern Caspian Sea. It has historically occurred in the lower reaches of the Don, Danube, Dnieper and Dniester rivers. In Europe, it has recently spread north west, reaching the Baltic Sea in 1992 and the United Kingdom in 2004. The mysid's spread has been facilitated via its deliberate introduction into reservoirs on the Volga and Dnieper rivers in the 1950s and 1960s to serve as fish food. Despite its spread throughout Europe, it is considered to be endangered in some parts of its indigenous range (Ukraine). The species has entered the Great Lakes via the ballast water exchange; it was reported for the first time in 2006 f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Ossian Sars
Prof Georg Ossian Sars H FRSE (20 April 1837 – 9 April 1927) was a Norwegian marine and freshwater biologist. Life Georg Ossian Sars was born on 20 April 1837 in Kinn, Norway (now part of Flora), the son of Pastor Michael Sars and Maren Sars; the historian Ernst Sars was his elder brother, and the singer Eva Nansen was his younger sister.Google Translate He grew up in Manger, Hordaland, where his father was the local priest. He studied from 1852 to 1854 at Bergen Cathedral School, from 1854 at Christiania Cathedral School, and joined the university at Christiana (now the University of Oslo) in 1857. He indulged his interest in natural history while studying medicine; having collected water fleas in local lakes with Wilhelm Lilljeborg's works, he discovered new species, and this resulted in his first scientific publication. Georg Ossian Sars had a good memory and excellent drawing skills, and illustrated some of his father's zoological works. Sars was a founding inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dniester
The Dniester, ; rus, Дне́стр, links=1, Dnéstr, ˈdⁿʲestr; ro, Nistru; grc, Τύρᾱς, Tyrās, ; la, Tyrās, la, Danaster, label=none, ) ( ,) is a transboundary river in Eastern Europe. It runs first through Ukraine and then through Moldova (from which it more or less separates the breakaway territory of Transnistria), finally discharging into the Black Sea on Ukrainian territory again. Names The name ''Dniester'' derives from Sarmatian ''dānu nazdya'' "the close river." (The Dnieper, also of Sarmatian origin, derives from the opposite meaning, "the river on the far side".) Alternatively, according to Vasily Abaev ''Dniester'' would be a blend of Scythian ''dānu'' "river" and Thracian ''Ister'', the previous name of the river, literally Dān-Ister (River Ister). The Ancient Greek name of Dniester, ''Tyras'' (Τύρας), is from Scythian ''tūra'', meaning "rapid." The names of the Don and Danube are also from the same Indo-Iranian word ''*dānu'' "r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Dover
Port Dover is an unincorporated community and former town located in Norfolk County, Ontario, Canada, on the north shore of Lake Erie. It is the site of the recurring Friday the 13th motorcycle rally. Prior to the War of 1812, this community was known as Dover Mills. Summary The Mayor of Norfolk County is Port Dover resident Amy Martin. This community is the southern terminus for Ontario Highway 6; located to the south of the Northern Ontario community of McKerrow. This highway stretches northward as a two-lane, undivided highway until the traffic flow increases to four lanes shortly after it departs from Caledonia. In addition to allowing Port Dover residents direct access to the city of Hamilton, it also briefly merges with Highway 403 to allow for access to the Royal Botanical Gardens and locations on to Toronto. The postal forward sortation area is ''N0A''; sharing its Canada Post service with the western portion of Haldimand County. All residences and businesses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Perch
The white perch (''Morone americana'') is not a true perch but is a fish of the temperate bass family, Moronidae, notable as a food and game fish in eastern North America. In some places it is referred to as "Silver Bass". The name "White perch" is sometimes applied to the white crappie. Generally silvery-white in color, hence the name, depending upon habitat and size specimens have begun to develop a darker shade near the dorsal fin and along the top of the fish. This sometimes earns them the nickname "black-back". White perch have been reported up to in length and weighing . Although favoring brackish waters, it is also found in fresh water and coastal areas from the St. Lawrence River and Lake Ontario south to the Pee Dee River in South Carolina, and as far east as Nova Scotia. They are also found in the lower Great Lakes, Finger Lakes, Long Island Sound and nearby coastal areas, Hudson and Mohawk River system, Delaware Bay and Chesapeake Bay. It is also found occasional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Michigan
Lake Michigan is one of the five Great Lakes of North America. It is the second-largest of the Great Lakes by volume () and the third-largest by surface area (), after Lake Superior and Lake Huron. To the east, its basin is conjoined with that of Lake Huron through the wide, deep, Straits of Mackinac, giving it the same surface elevation as its easterly counterpart; the two are technically a single lake. Lake Michigan is the world's largest lake by area in one country. Located in the United States, it is shared, from west to east, by the states of Wisconsin, Illinois, Indiana, and Michigan. Ports along its shores include Milwaukee and the City of Green Bay in Wisconsin; Chicago in Illinois; Gary in Indiana; and Muskegon in Michigan. Green Bay is a large bay in its northwest, and Grand Traverse Bay is in the northeast. The word "Michigan" is believed to come from the Ojibwe word (''michi-gami'' or ''mishigami'') meaning "great water". History Some of most studied ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muskegon Lake
Muskegon Lake is a fresh-water lake in Muskegon County, Michigan, USA. Located in the lower peninsula at the mouth of the Muskegon River, Muskegon Lake forms a broad harbor along the eastern shoreline of Lake Michigan, approximately wide by long. Hydrology The Muskegon River, Michigan's second-longest river, originating at Houghton Lake and flowing southwest for , empties into Muskegon Lake at the eastern end before entering Lake Michigan. On the north, Bear Creek/Lake empties into the lake via the Bear Lake Channel and on the south, Ryerson Creek and Ruddiman Creek flow into Muskegon Lake. History Muskegon Lake played an important role in the early development of the city of Muskegon, as well as the logging industry in Michigan. Timber, particularly white pine, was harvested throughout central Michigan and floated downstream on the Muskegon River to the lake, which at one time boasted more than 47 sawmills along its banks. Cities and parks Cities located on Muskegon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oswego, New York
Oswego () is a city in Oswego County, New York, United States. The population was 16,921 at the 2020 census. Oswego is located on Lake Ontario in Upstate New York, about 35 miles (55km) northwest of Syracuse. It promotes itself as "The Port City of Central New York." It is the county seat of Oswego County. The city of Oswego is bordered by the towns of Oswego, Minetto, and Scriba to the west, south, and east, respectively, and by Lake Ontario to the north. Oswego Speedway is a nationally known automobile racing facility. The State University of New York at Oswego is located just outside the city on Lake Ontario. History Early history The British established a trading post in the area in 1722 and fortified it with a log palisade later called Fort Oswego, named after the native Iroquois place name "os-we-go" meaning "pouring out place." The first fortification on the site of the current Fort Ontario was built by the British in 1755 and called the "Fort of the Six Natio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nine Mile Point
Nine Mile Point Nuclear Station is a nuclear power plant with two nuclear reactors located in the town of Scriba, approximately five miles northeast of Oswego, New York, on the shore of Lake Ontario. The site is also occupied by the James A. FitzPatrick Nuclear Power Plant. In April 2011, Exelon of Chicago announced its intention to purchase Constellation Energy, the owner and operator of Nine Mile Point Nuclear Station. The acquisition was approved by FERC and the companies officially combined on March 12, 2012 with Constellation Energy taking the Exelon name. Exelon separated its generating assets back into Constellation Energy in 2022. Constellation owns Unit 1 and holds (82%) of Unit 2 while Long Island Power Authority holds (18%). Constellation Energy is the sole operator of both Units 1 & 2. Both units are boiling water reactors (BWRs). Units 1 and 2 Both units are General Electric boiling water reactors (BWR). Unit 1, a BWR-2 (Generation 2), went online in 1969 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Ontario
Lake Ontario is one of the five Great Lakes of North America. It is bounded on the north, west, and southwest by the Canadian province of Ontario, and on the south and east by the U.S. state of New York. The Canada–United States border spans the centre of the lake. The Canadian cities of Toronto, Kingston, Mississauga, and Hamilton are located on the lake's northern and western shorelines, while the American city of Rochester is located on the south shore. In the Huron language, the name means "great lake". Its primary inlet is the Niagara River from Lake Erie. The last in the Great Lakes chain, Lake Ontario serves as the outlet to the Atlantic Ocean via the Saint Lawrence River, comprising the eastern end of the Saint Lawrence Seaway. The Moses-Saunders Power Dam regulates the water level of the lake. Geography Lake Ontario is the easternmost of the Great Lakes and the smallest in surface area (7,340 sq mi, 18,960 km2), although it exceeds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballast Water
Ballast is used in ships to provide moment to resist the lateral forces on the hull. Insufficiently ballasted boats tend to tip or heel excessively in high winds. Too much heel may result in the vessel capsizing. If a sailing vessel needs to voyage without cargo, then ballast of little or no value will be loaded to keep the vessel upright. Some or all of this ballast will then be discarded when cargo is loaded. Uses Ballast takes many forms. The simplest form of ballast used in small day sailers is so-called "live ballast", or the weight of the crew. By sitting on the windward side of the hull, the heeling moment must lift the weight of the crew. On more advanced racing boats, a wire harness called a trapeze is used to allow the crew to hang completely over the side of the hull without falling out; this provides much larger amounts of righting moment due to the larger leverage of the crew's weight, but can be dangerous if the wind suddenly dies, as the sudden loss of heeling m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ukraine
Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian invasion, it was the eighth-most populous country in Europe, with a population of around 41 million people. It is also bordered by Belarus to the north; by Poland, Slovakia, and Hungary to the west; and by Romania and Moldova to the southwest; with a coastline along the Black Sea and the Sea of Azov to the south and southeast. Kyiv is the nation's capital and largest city. Ukraine's state language is Ukrainian; Russian is also widely spoken, especially in the east and south. During the Middle Ages, Ukraine was the site of early Slavic expansion and the area later became a key centre of East Slavic culture under the state of Kievan Rus', which emerged in the 9th century. The state eventually disintegrated into rival regional po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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