The Common Dace (Leuciscus leuciscus) is a freshwater or brackish fish belonging to the family Cyprinidae, also known as the Dare or the Dart. It is an inhabitant of the rivers and streams of Europe north of the Alps as well as in Asia, but it is most abundant in those of France and Germany, as well as having spread to Ireland where it is used as a bait fish. It will grow to a maximum length of 15¾ inches (40 centimeters), a maximum weight of 2.2 lb (1 kg), and may live for up to 16 years. The conservation status of a species is an indicator of the likelihood of that species continuing to survive. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla Animals are a major group of organisms, classified as the kingdom Animalia or Meta­zoa. ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders See text The Actinopterygii are the ray-finned fish. ... Families Suborder Cobitoidea     Balitoridae (hillstream loaches)     Catostomidae (suckers)     Cobitidae (loaches)     Gyrinocheilidae (algae eaters) Suborder Cyprinoidea     Cyprinidae (carps and minnows) The Cypriniformes are an order of ray-finned fish, including the minnows and some related families. ... Genera (many, see text) The family Cyprinidae, named after the Greek word for goldfish, consists of the carps and minnows. ... Species (many, see text) Leuciscus is a genus of fish belonging to the family Cyprinidae. ... In biology, binomial nomenclature is the formal method of naming species. ... Carolus Linnaeus Carl Linnaeus, also known after his ennoblement as , (May 23, 1707 – January 10, 1778), was a Swedish botanist, physician and zoologist[1] who laid the foundations for the modern scheme of nomenclature. ... 1758 was a common year starting on Sunday (see link for calendar). ... For the village on the Isle of Wight, see Freshwater, Isle of Wight. ... Brackish water is water that is saltier than fresh water, but not as salty as sea water. ... Atlantic herring, Clupea harengus: one of the most abundant species of fish in the world. ... In biological classification, family (Latin: familia, plural familiae) is 1) a rank or 2) a taxon in that rank. ... Genera (many, see text) The family Cyprinidae, named after the Greek word for goldfish, consists of the carps and minnows. ... World map showing Europe Political map Europe is one of the seven continents of Earth which, in this case, is more a cultural and political distinction than a physiographic one, leading to various perspectives about Europes borders. ... The West face of the Petit Dru above the Chamonix valley near the Mer de Glace. ... World map showing the location of Asia. ... Mid-19th century tool for converting between different standards of the inch An inch is an Imperial and U.S. customary unit of length. ... A centimetre (US: centimeter) is a factor of the SI unit of length: there are one hundred centimeters in the base unit of measure, the metre. ... The pound is the name of a number of units of mass, all in the range of 300 to 600 grams. ... The international prototype, made of platinum-iridium, which is kept at the BIPM under conditions specified by the 1st CGPM in 1889. ...

The Common Dace natively lives in a temperate climate and prefers water with a 6.0 to 8.0 pH and an ideal temperature range of 39 to 72 °F (4 to 22 °C). It prefers clear streams flowing over a gravelly bottom, and deep, still water, keeping close to the bottom in winter but disporting itself near the surface, in the sunshine of summer. It is preyed upon by the larger predaceous fishes of fresh waters, and owing to its silvery appearance is a favorite bait in pikefishing. Its flesh is wholesome and is sometimes caught for food, but is not held in much estimation. While typically a freshwater fish, the Dace enters brackish waters in the eastern Baltic Sea. In geography, temperate latitudes of the globe lie between the tropics and the polar circles. ... The title of this article should be pH. The initial letter is capitalized due to technical restrictions. ... Fahrenheit is a temperature scale named after the German physicist Gabriel Fahrenheit (1686–1736), who proposed it in 1724. ... A degree Celsius (°C) is a unit of temperature named after the Swedish astronomer Anders Celsius (1701-1744), who first proposed a similar system in 1742. ... A running stream. ... Gravel being unloaded from a barge Gravel is rock that is of a certain grain size range. ... Winter is one of the four seasons of temperate zones. ... For other senses of this word, see Summer (disambiguation). ... This snapping turtle is trying to make a meal of a Canada goose, but the goose is too wary. ... The Baltic Sea is located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. ...

The Dace is a lively, active fish, of gregarious habits, and exceedingly prolific, depositing its pale yellow eggs in the spring at the roots of aquatic plants or in the gravelly beds of the shallow, flowing streams it frequents. It poses a risk as a potential pest in some areas. In appearance it closely resembles the Roach in both size and shape, with the head and back of a dusky blue color and the sides of a shining silvery aspect, with numerous dark lines running along the course of the scales. The ventral and anal fins are white, tinged with pale red,; and the dorsal, pectoral and caudal tipped with black. The dace feeds on worms, insects, insect-larvae, snails, and also rarely on vegetable matter. Spring is one of the four seasons of temperate zones. ... Primary and secondary roots in a cotton plant In vascular plants, the root is that organ of a plant body that typically lies below the surface of the soil (compare with stem). ... Aquatic plants — also called hydrophytic plants or hydrophytes — are plants that have adapted to living in or on aquatic environments. ... Binomial name Rutilus rutilus Linnaeus, 1758 The Roach (Rutilus rutilus, family Cyprinidae, plural also roach) is a small freshwater and brackish water fish native to most of Europe and western Asia. ... Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ... Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ... A fin is a surface used to produce lift and thrust or to steer while traveling in water, air, or other fluid media. ... Dorsal Fin of the Orca A dorsal fin is a fin located on the backs of fishes, whales, dolphins and porpoises. ... Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ... Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ... A worm is an elongated soft-bodied invertebrate animal. ... Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ... A larva (Latin; plural larvae) is a juvenile form of animal with indirect development, undergoing metamorphosis (for example, insects or amphibians). ... The name snail applies to most members of the molluscan class Gastropoda that have coiled shells. ... Vegetables in a market Venn diagram representing the relationship between (botanical) fruits and vegetables. ...

In the United States, the name of dace is also applied to members of other genera of the family; the horned dace (Semnotilus atromaculatus) is a well-known variety. A dace is any of a number of species of small cyprinid fish. ... In biology, a genus (plural genera) is a taxonomic grouping. ...

References

• World Conservation Monitoring Centre (1996). Leuciscus leuciscus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Downloaded on 12 May 2006.
• Leuciscus leuciscus (TSN 163580). Integrated Taxonomic Information System. Accessed on 4 October 2004.
• "Leuciscus leuciscus". FishBase. Ed. Ranier Froese and Daniel Pauly. September 2004 version. N.p.: FishBase, 2004.
• This article incorporates text from the Encyclopædia Britannica Eleventh Edition, a publication now in the public domain.