Monday, May 15, 2017

Common carp

3D drawing of realistic common carp / dibujar well paso a paso desenho



A third subspecies, C. C haematopterus native Amur carp in East Asia, has been recognized in the past, but recent 4 authorities treat as a distinct species under the name C. Rubrofuscus May 1 Carp joint and several Asian parents in the pure forms can be separated by meristic and also differ in genetics, but they are able to interbreed 1 6 common carp can also interbreed with the goldfish Carassius auratus common 7 8.
The common carp is native to Europe and Asia, and has been implemented in all parts of the world except the poles They are the third most commonly introduced species worldwide, and their history as a farmed fish dates back to the Roman era carp are used as food in many areas, but are now considered a pest in some regions because of their ability to out compete native fish stocks 9 municipality of origin carp was found in the inland delta of the Danube there are about 2000 years old, and torpedo shape and golden color there were two pairs of barbels and a mesh scale pattern Although this fish was first kept as a prisoner Exploited, he was then held in large ponds specially built by the Romans in south-central Europe checked by the discovery of common carp remains in colo ned dug in the region of the Danube Delta that aquaculture has become a profitable branch of agriculture, efforts have been made to the farm animals, and farming systems soon included spawning and growth 10 The ponds ing common carp natural range extends from the Caspian sea and the Black sea to the Aral sea.
Both European and Asian subspecies have been domesticated 4 In Europe, the domestication of carp as food fish was spread by monks between the 13th and 16th centuries, the wild forms of carps had reached the Rhine delta in 12th century, probably with some human 11 variants allow that arose with the domestication include mirror carp large scales as a linear mirror mirror without scales, except for a row of large scales that run along the lateral line; from Germany, the leather carp practically without scales except near dorsal end and carp fully scaled carp koi 錦鯉 nishikigoi Japanese, 鯉魚 yú of pinyin Chinese is a domesticated ornamental variety that originated in Japan's Niigata region in the 1820s, 12 but its parent species are probably the Asian carp, perhaps C rubrofuscus 1 of 5.
Wild common carp are generally thinner than the domesticated form, with a body length of about four times the height of the body, red flesh and a mouth projecting forward common carp can reach very large sizes if they are gives enough space and nutrients Their average growth rate in weight is about half the growth rate of carp domesticated 13 14 They do not reach the length and weight of the domesticated carp, which will, March 2 August 4 times 2 can reach a maximum length of 120 cm 47 in a maximum weight of over 40 kg 88 lb, 2 and a highest recorded age of 65, but reliable information seems to exist about nishikigoi more 100 years 14 15 the largest recorded carp, caught by angler in January 2010 at Lake curtons Rainbow Lake near Bordeaux France, weighed 42 6 kg 94 lbs 16 largest registered carp caught by angler British Colin Smith in 2013 to the pond Saussaie fishing, France, weighed 45 kg 100 5 59 lb average size of common carp is about 40 cm 80 15 31 75. 5 inches and 2 4 5-31 14 kg lb


Although tolerant of most conditions, common carp prefer large bodies of standing water or slow and soft, vegetative sediments of fish, they prefer to be in groups of five or more, they naturally live in temperate climates in freshwater or slightly brackish with pH 6 5 9 0 and salinity up to about 5 0, 17 and temperatures of 3 to 35 C 37 F 95 2 the ideal temperature is 23 to 30 C 73 86 F, with the laying from 17 to 18 C 63 F 64; they easily survive the winter in a frozen pond, as long as open water remains under the ice 17 Carp can tolerate water with very low levels of oxygen, air gulping at the surface 3.
Common carp are omnivorous They can eat an herbivorous diet of aquatic plants, but prefer clean the bottom of insects, including zooplankton, crustaceans, lobsters and benthic worms.
An egg layer, a typical adult female can lay 300,000 eggs in a single spawning 18 Although carp usually breed in the spring, in response to rising temperatures and rainfall, the carp can spawn several times in a season in commercial operations, reproduction is often stimulated using a process called hypophysation where freeze-dried pituitary extract is injected into the fish pituitary extract contains gonadotropin hormones that stimulate gonadal maturation and production sex steroids, promoting reproduction in the end.
A carp can lay over a million eggs in a year, 3 but their population remains the same, so the eggs and young perish in the same way a large number eggs and fry are often subjected to bacteria, mushrooms and the wide range of tiny predatory environment of the pond carp survive minors are the prey of other fish such as pike and largemouth bass and a number of birds including herons and cormorants and mergansers ospreys 19 mammals, including otters and mink.
Koi koi food are ornamental varieties of domesticated carp and are kept in garden ponds Although mothers koi species was considered common carp, recent authorities believe that it comes from an Asian carp, may be C rubrofuscus May 1st.



Common carp were introduced to most continents and some 59 countries in the absence of natural predators or commercial fishing, they can change their environment largely due to their reproduction rate and their food habit grubbing in sediments the bottom of the food in the diet, they can destroy, uproot, disrupt and eat submerged vegetation, causing severe damage to native ducks like scaup and fish populations 20.
In Victoria, Australia, common carp was declared as harmful fish species, the amount of a fisherman can take unlimited 21 In South Australia, it is an offense for this species released to the wild 22 An Australian company produces fertilizers plants carp 23.
Efforts to eradicate a small colony of Crescent Lake in Tasmania, using no chemicals have been successful, but long-term, expensive and intensive undertaking is an example of both the potential and the difficulty withdraw any security here once the quote made necessary a proposal, considered doubtful environment is to control common carp by deliberately exposing them to specific koi herpes virus carp with its high mortality rate CSIRO developed a technique to genetically modify carp so they produce only male offspring This method of carp without promising offspring to completely eradicate the river carp of Australia.
Common carp were brought to the United States in 1831 24 At the end of the 19th century, they have been widely distributed throughout the country by the government as a food fish, but they are not very popular as a food fish in Australia , their introduction has been shown to have negative consequences on the environment, 25 and they are generally considered invasive species in Utah Utah Lake, the population of common carp should be reduced by 75 using nets to catch millions of them and is giving them to people or treat them to eat fertilizer This, in turn, will sucker born June 1 chance to recover its declining population another method consists of trapping in tributaries they use to spawn with seine nets and exposing to rotenone This method has shown to reduce their impact in 24 hours and increased er considerably native vegetation and desirable fish species This also leaves the baby carp easy prey for native fish.



Common carp believed to have been introduced in the Canadian province of British Columbia in Washington They were first noted in the Okanagan Valley in 1912, as the rapid growth of the population Carp are currently distributed in the part lower Columbia Arrow Lakes Kettle lower Kootenay Christina Lake, and throughout the Okanagan 26 system.
World production aquaculture common carp tons in 1950-2013.








Common carp, common, carp, Asian carp may.