CyprinoidCyprinidae is the name for any of the freshwater fishes in the minnow or carp family Cyprinidae, which includes such members as carp, goldfish, zebrafish, minnow, and chub. With over 200 genera and over 2,000 species, Cyprinidae is the largest family of freshwater fishes in the world, and may even be the largest family of vertebrates, with the possible exception of Gobiidae (the gobies) (Nelson 1994).
During early development in cyprinid fish, the embryonic axis develops in a specific 'cephalic' orientation. This means that regardless of how the embryo is positioned, the cephalic region will always be at one end, with the tail on the opposite side. This has two important consequences. 1) It allows for the development of structures that are not located on the upper side but are located on the lower dorsal surface. 2) Any cephalic structures that develop in common between species will all be located on one side of the embryo regardless of how it is positioned within the developing egg cavity. This is important because it means that structures on the dorsal side are 'up' and structures on the ventral side are ‘down.’
Pigmentation begins with melanophores, which are derived from neural crest cells. The neural crest cells migrate during development to form pigment-containing organs, for instance, the iridophore in fish. Neural crest cells are multipotent, that is they can give rise to several different cell types. The first sign of pigment begins with the appearance of an iron-rich (heme) protein called kupffer’s vesicle or kupffer’s granule in the neural tube under the center of the ectoderm. It is thought that this structure’s main function is to store and then release iron into the surrounding cells and tissues, thus allowing for oxygen transport and other metabolic reactions (Nieuwkoop and Faber 1994). While kupffer’s vesicle does not directly give rise to pigment, it serves as a signal for the deposition of pigment in fish embryos.
The following are some examples of cyprinid fish: carp (including mirror carp and leather carp), goldfish, zebrafish, minnow, and chub. With over 200 genera and over 2,000 species, Cyprinidae is the largest family of freshwater fishes in the world, and may even be the largest family of vertebrates.
Cyprinids are a very popular tropical aquarium fish in the United States, often sold under the name "minnow." Most of the fish sold as "minnow" is not true cyprinids, but a related family, the Cyprinodontidae. Some exceptions to this exist, as with the grass carp and several species referred to as "White Cloud Mountain minnows."
During early development in cyprinid fish, the embryonic axis develops in a specific 'cephalic' orientation. This means that regardless of how the embryo is positioned, the cephalic region will always be at one end, with the tail on the opposite side.
Global cyprinoid production
As of 2010, cyprinoid global production was estimated at 5.7 million tonnes. China was the top producer with 3.6 million tonnes, followed by India with 1.2 million tonnes. Other significant producers included Myanmar, Thailand, and Vietnam.
Cyprinoids are a type of freshwater fish that includes carp, minnows, and barbs. They are native to Eurasia and North America and have been introduced to other parts of the world, including Africa, South America, and Australia.
Cyprinoids are an important food for fish, with carp being the most popular species consumed. In China, carp are commonly made into a soup or stew. Cyprinoids are also used in aquaculture and as bait fish.
The global cyprinoid market is expected to grow in the future as demand for freshwater fish increases. In particular, the Chinese market is expected to grow due to the country’s growing population and middle class.