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The Kollar carp (Cyprinus carpio x Carassius auratus) is a hybrid fish obtained by crossing common carp (Cyprinus carpio) and goldfish (Carassius auratus). Described by the Austrian zoologist Johann Jacob Heckel , its binomial name pays tribute to his compatriot, entomologist Vincenz Kollar .
The fish are a breed of the common carp, Cyprinus carpio, which includes numerous wild carp races as well as domesticated koi (nishikigoi). In July 1977, the then Crown Prince Akihito visited the Saitama Prefectural Fisheries Experiment Station and suggested that there was a carp with a long fin in Indonesia ( Cypirnus carpio var. flavipinnis C ...
Cyprinus rubrofuscus, the Amur carp, is a species of cyprinid fish, and is the wild form of the well-known koi. It is widespread in the fresh waters of eastern Asia , native to China , Korea , Russia , Vietnam and Laos from the Amur to Red River basins , and has also been introduced outside its native range. [ 1 ]
While the fins are usually opaque, in older fish they may be dark yellow. It is distributed along the Mississippi River basin from Pennsylvania to Montana . The river carpsucker, like most suckers , is a bottom feeder and obtains its nutrients from algae , microcrustaceans , and other various tiny planktonic plants and animals found in silty ...
Carp A member of the Cyprinidae, carp spawn in times between April and August, largely dependent upon the climate and conditions they live in. Oxygen levels of the water, availability of food, size of each fish, age, number of times the fish has spawned before and water temperature are all factors known to effect when and how many eggs each ...
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and the largest vertebrate animal family overall, with about 3,000 species ; only 1,270 of these remain ...
Cypriniformes / s ɪ ˈ p r ɪ n ɪ f ɔːr m iː z / is an order of ray-finned fish, which includes many families and genera of cyprinid (carps and their kin) fish, such as barbs, gobies, loaches, botias, and minnows (among others).
Increasingly, these fish are being breed artificially for aquaculture. This is a common practice in Laos and Thailand. In order to capture wild fish, aquaculture sites set up large-mesh gill netting at spawning sites. Not only does this capture many wild Jullien's golden carp, but it also stops them from spawning, further diminishing their numbers.