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Petromyzon
The sea lamprey (''Petromyzon marinus'') is a parasitic lamprey native to the Northern Hemisphere. It is sometimes referred to as the "vampire fish". It was likely introduced to the Great Lakes region through the Erie Canal in 1825 and the Welland Canal in 1919 where it has attacked native fish such as lake trout, lake whitefish, chub, and lake herring. Sea lampreys are considered a pest in the Great Lakes region as each individual has the potential of killing 40 pounds of fish through its 12–18 month feeding period. Description The sea lamprey has an eel-like body without paired fins. Its mouth is jawless, round and sucker-like, and as wide or wider than the head; sharp teeth are arranged in many concentric circular rows around a sharp, rasp-like tongue. There are seven branchial or gill-like openings behind the eye. Sea lampreys are olive or brown-yellow on the dorsal and lateral part of the body, with some black marblings, with lighter coloration on the belly. Within th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamprey
Lampreys (sometimes inaccurately called lamprey eels) are a group of Agnatha, jawless fish comprising the order (biology), order Petromyzontiformes , sole order in the Class (biology), class Petromyzontida. The adult lamprey is characterized by a toothed, funnel-like sucking mouth. The common name "lamprey" is probably derived from Latin , which may mean "stone licker" ( "to lick" + "stone"), though the etymology is uncertain. "Lamprey" is sometimes seen for the plural form. About 38 extant species of lampreys are known, with around seven known extinct species. They are classified in three families—two small families in the Southern Hemisphere (Geotriidae, Mordaciidae) and one large family in the Northern Hemisphere (Petromyzontidae). Genetic evidence suggests that lampreys are more closely related to hagfish, the only other living group of jawless fish, than they are to jawed vertebrates, forming the superclass Cyclostomi. The oldest fossils of stem-group lampreys are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European River Lamprey
The European river lamprey (''Lampetra fluviatilis''), also known as the river lamprey or lampern, is a species of freshwater lamprey. Description Adult river lampreys measure from in the marine forms and up to in the lake forms. The very elongated body is uniformly dark grey on top, paler to yellowish off-white on the sides and pure white underneath. Like all lampreys, they lack paired fins and have a circular sucking disc instead of jaws. They have a single nostril and seven small gill slits on each side behind the eye. The teeth are sharp and these fish can be distinguished from the somewhat smaller brook lamprey (''Lampetra planeri'') by the fact that the two dorsal fins are more widely separated. Distribution The European river lamprey is found in coastal waters around almost all of Europe from the northwestern Mediterranean Sea north to the lakes of Finland, Scotland, Norway (Mjøsa), Wales ( Cors Caron), and Russia, including rivers in the Alps; especially in Nakkila, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Migration
Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousands of kilometres. Such migrations are usually done for better feeding or to reproduce, but in other cases the reasons are unclear. Fish migrations involve movements of schools of fish on a scale and duration larger than those arising during normal daily activities. Some particular types of migration are ''anadromous'', in which adult fish live in the sea and migrate into fresh water to spawn; and ''catadromous'', in which adult fish live in fresh water and migrate into salt water to spawn. Marine forage fish often make large migrations between their spawning, feeding and nursery grounds. Their movements are associated with ocean currents and with the availability of food in different areas at different times of the year. The migratory ... [...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 species name ''clu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10th Edition Of Systema Naturae
The 10th edition of ''Systema Naturae'' (Latin; the English title is ''A General System of Nature'') is a book written by Swedish naturalist Carl Linnaeus and published in two volumes in 1758 and 1759, which marks the starting point of zoological nomenclature. In it, Linnaeus introduced binomial nomenclature for animals, something he had already done for plants in his 1753 publication of ''Species Plantarum''. Starting point Before 1758, most biological catalogues had used polynomial names for the taxa included, including earlier editions of ''Systema Naturae''. The first work to consistently apply binomial nomenclature across the animal kingdom was the 10th edition of ''Systema Naturae''. The International Commission on Zoological Nomenclature therefore chose 1 January 1758 as the "starting point" for zoological nomenclature and asserted that the 10th edition of ''Systema Naturae'' was to be treated as if published on that date. Names published before that date are unavailable, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasive Species
An invasive species is an introduced species that harms its new environment. Invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food web. Since the 20th century, invasive species have become serious economic, social, and environmental threats worldwide. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of invasion. For millennia, humans have served as both accidental and deliberate dispersal agents, beginning with their earliest migrations, accelerating in the Age of Discovery, and accelerating again with the spread of international trade. Notable invasive plant species include the kudzu vine, giant hogweed (''Heracleum mantegazzianum''), Japanese knotw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Cisco
''Coregonus artedi'', commonly known as the cisco, is a North American species of freshwater whitefish in the family Salmonidae. The number of species and definition of species limits in North American ciscoes is a matter of debate. Accordingly, ''Coregonus artedi'' may refer either in a narrow sense to one of the several types of cisco found e.g. in the Great Lakes, or in a broad sense to the complex of all ciscoes in continental North American lakes, ''Coregonus artedi'' sensu lato. ''Coregonus artedi'', narrow sense Narrowly defined, ''Coregonus artedi'' is known variously with the common names cisco, northern cisco, lake herring, chub or tullibee and its Anishinaabe name ''Odoonibiins''. It is a pelagic fish occurring in the midwater zone of cold water lakes in North America. In the northern and western parts of its range it is also found in large rivers. This species occasionally grows as large as 40 cm and 2.3 kg (five pounds), but is more commonly 28 to 38&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Trout
The lake trout (''Salvelinus namaycush'') is a freshwater Salvelinus, char living mainly in lakes in Northern North America. Other names for it include mackinaw, namaycush, lake char (or charr), touladi, togue, laker, 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 Fish as food, food fish. Those caught with dark coloration may be called ''mud hens''. Taxonomy and etymology It is the only member of the subgenus ''Cristovomer'', which is more derived than the subgenus ''Salvelinus#Taxonomy, Baione'' (the most Basal (phylogenetics), basal clade of ''Salvelinus'', containing the brook trout (''S. fontinalis'') and silver trout (''S. agasizii'')) but still basal to the other members of ''Salvelinus''. The binominal nomenclature, specific epithet ''namaycush'' derives from ''namekush'', a form of the word used in some inland Southern East Cree language, Southern East Cree commun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquarium Finisterrae
Aquarium Finisterrae (Aquarium of the end of the world) is an aquarium located in A Coruña, Galicia, Spain. It is an interactive centre of the sciences of marine biology, oceanography. It advocates wildlife preservation, particularly the sea ecosystem and sea life. Founded by the city of A Coruña, it was inaugurated on June 5, 1999. It is directed by Ramón Núñez Centella. Francisco Franco del Amo was the technical director from its opening until his death in 2021. It is located on the coast of A Coruña, in the Maritime Pass, between the Domus (museum) and the Tower of Hercules. Its exterior pools are connected to the Atlantic Ocean. Distribution *Sala maremágnum: An interactive exposition room that focuses on the Atlantic Ocean. It houses more than 600 Atlantic species. *Sala Humboldt: A room containing expositions about sea ecosystems. *Sala Nautilus: A room decorated in the style of the study of Captain Nemo in the Nautilus. It is an observation room in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Connecticut River
The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges into Long Island Sound between Old Saybrook, Connecticut, Old Saybrook and Old Lyme, Connecticut. Its watershed encompasses , covering parts of five U.S. states and one Canadian province, via 148 tributaries, 38 of which are major rivers. It produces 70% of Long Island Sound's fresh water, discharging at per second. The Connecticut River Valley is home to some of the northeastern United States' most productive farmland, as well as the Hartford–Springfield, Hartford–Springfield Knowledge Corridor, a metropolitan region of approximately two million people surrounding Springfield, Massachusetts, and Hartford, Connecticut. History The word "Connecticut" is a Corruption (linguistics), corruption of the Mohegan word ''quinetucket'' and Nipmuc word ''kw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Champlain
Lake Champlain ( ; , ) is a natural freshwater lake in North America. It mostly lies between the U.S. states of New York (state), New York and Vermont, but also extends north into the Canadian province of Quebec. The cities of Burlington, Vermont and Plattsburgh, New York are the largest settlements on the lake, and towards the south lies the historic Fort Ticonderoga in New York. The Quebec portion is in the Regional county municipality, regional county municipalities of Le Haut-Richelieu Regional County Municipality, Quebec, Le Haut-Richelieu and Brome-Missisquoi Regional County Municipality, Brome-Missisquoi. There are a number of islands in the lake; the largest include Grand Isle (island), Grand Isle, Isle La Motte and North Hero: all part of Grand Isle County, Vermont. Because of Lake Champlain's connections both to the St. Lawrence Seaway via the Richelieu River, and to the Hudson River via the Champlain Canal, Lake Champlain is sometimes referred to as "The Sixth Great ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vermont
Vermont () is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, New Hampshire to the east, New York (state), New York to the west, and the Provinces and territories of Canada, Canadian province of Quebec to the north. According to the most recent U.S. Census estimates, the state has an estimated population of 648,493, making it the List of U.S. states and territories by population, second-least populated of all U.S. states. It is the nation's List of U.S. states and territories by area, sixth smallest state in area. The state's capital of Montpelier, Vermont, Montpelier is the least populous List of capitals in the United States, U.S. state capital. No other U.S. state has a List of largest cities of U.S. states and territories by population, most populous city with fewer residents than Burlington, Vermont, Burlington. Native Americans in the United States, Native Americans have inhabited the area for abou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
