? Grass Carp
Juvenile
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Cypriniformes Family: Cyprinidae Subfamily: Cyprininae Genus: Ctenopharyngodon Species: C. idella
Binomial name
Ctenopharyngodon idella Valenciennes, 1844

The Grass Carp, (Ctenopharyngodon idella), also known as the White Amur, is a herbivorous, freshwater fish considered especially well suited for aquatic weed control. It is a species of carp native to Siberia and northern China. The name White Amur derives from the Amur river, where the species is believed to originate. Grass Carp (Ctenopharyngodon idella ) - juvenile Downloaded from : [[1]] Credits : US Geological Survey - Florida Integrated Science Center, Gainesville Photo by Noel M. Burkhead File links The following pages link to this file: Grass carp Categories: USGS images | NowCommons ... 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. ... In biology, binomial nomenclature is the formal method of naming species. ... Achille Valenciennes (August 9, 1794 - April 13, 1865) was a French zoologist. ... In zoology, an herbivore is an animal that is adapted to eat primarily plants (rather than meat). ... For the village on the Isle of Wight, see Freshwater, Isle of Wight. ... Atlantic herring, Clupea harengus: one of the most abundant species of fish in the world. ... Genera Abramis Aristichthys Barbodes Carassius Cirrhinus Ctenopharyngodon Cyprinus Epalzeorhynchos Henicorhynchus Hypophthalmichthys Labeo Mylopharyngodon and others A carp is any of various freshwater fish of the family Cyprinidae. ... Siberia is also an album by Echo & The Bunnymen. ... The Amur River (Russian: Амур; Simplified Chinese: 黑龙江; Traditional Chinese: 黑龍江; Hanyu Pinyin: , or Black Dragon River; Mongolian: Хара-Мурэн, Khara-Muren or Black River; Manchu: Sahaliyan Ula, literal meaning Black River) is one of the world’s ten longest rivers, forming the border between the Russian Far East and Manchuria in China. ...

White amur have an elongate, chubby body form that is torpedo shaped (terete). The terminal mouth is slightly oblique with non-fleshy, firm lips, and no barbels. The complete lateral line contains 40 to 42 scales. Broad, ridged pharyngeal teeth are arranged in a 2, 4-4, 2 formula. The dorsal fin has 8 to 10 soft rays, and the anal fin is set closer to the tail than most cyprinids. Body color is dark olive, shading to brownish-yellow on the sides with a white belly and large slightly outlined scales.

Grass Carp

The species was deliberately introduced into the United States in 1963 for aquatic weed control. It was introduced into New Zealand along with stocks of goldfish but the distribution is carefully controlled to prevent it from becoming a more widespread pest. Adults of the species feed exclusively on aquatic plants. The grass carp grows very rapidly, and young fish stocked in the spring at 8 inches will reach over 18 inches by fall, and adults often attain nearly 4 feet in length and over 40 pounds (18 kg) in weight. Grass Carp (Ctenopharyngodon idella ) Downloaded from : [[1]] Credits : US Geological Survey -- Florida Integrated Science Center, Gainesville File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Grass Carp (Ctenopharyngodon idella ) Downloaded from : [[1]] Credits : US Geological Survey -- Florida Integrated Science Center, Gainesville File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... 1963 (MCMLXIII) was a common year starting on Tuesday (the link is to a full 1963 calendar). ... Trinomial name Carassius auratus auratus (Linnaeus, 1758) For the Baked Snack Crackers, please see Goldfish (snack). ...

When used for weed control, often the fish introduced to the pond or stream are sterile, triploid fish. The process for producing triploid fish involves "shocking" eggs with heat or electricity. The young are then tested for triploidy before being sold. In the wild, grass carp only breed in fast-moving rivers. Polyploidy refers to cells or organisms that contain more than two copies of each of their chromosomes. ...

References

• Ctenopharyngodon idella (TSN 163537). Integrated Taxonomic Information System. Accessed on 11 March 2006.
• Ctenopharyngodon idella. FishBase. Ed. Ranier Froese and Daniel Pauly. 10 2005 version. N.p.: FishBase, 2005.