Girish Mahajan (Editor)

Prussian carp

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Higher classification


Scientific name
Carassius gibelio


Prussian carp httpsretrievermanfileswordpresscom200902p

Carassius, Crucian carp, Common rudd, Common nase, Tench

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The Prussian carp, silver Prussian carp or Gibel carp (Carassius gibelio, sometimes Carassius gibelio gibelio and, before 2003, Carassius auratus gibelio), is a member of the family Cyprinidae, which includes many other fish, such as the common carp, and the smaller minnows. It is a medium-sized cyprinid, and does not exceed a weight of 6.6 pounds (3 kg) and a size of 45 cm. They are usually silver, although other color variations exist. They are omnivorous and feed on plankton, invertebrates, plant material and detritus. Originally from Asia (Siberia), they have been introduced to and are now inhabiting lakes, ponds, and slow-moving rivers throughout Europe, North America, and Asia.


Prussian carp in the bow river invasive species


Prussian carp Prussian carp Wikipedia

The Prussian carp is a deep-bodied, robust fish which resembles the Crucian carp (Carassius carassius) and grows to about 10 to 35 cm (4 to 14 in) in length. Its scales are larger than those of the Crucian carp, and it typically has 27 to 32 scales along the lateral line, whereas the Crucian carp usually has between 31 and 35. The species is silvery, sometimes with a faint golden tinge, while the Crucian carp has a burnished gold appearance. The Prussian carp's tail is more deeply forked than that of the Crucian carp.

Domestication into Goldfish

Prussian carp Prussian carp WikiVisually

Goldfish were originally developed from domesticated Prussian carp in China over 1,000 years ago, when they were bred for color for display in ornamental ponds and watergardens. Although some sources claim that crucian carp (Carassius carassius) are the wild version of the goldfish (Carassius auratus), recent research has found that the wild form of the goldfish is actually the Prussian carp (Carassius gibelio, or sometimes C. auratus gibelio, with gibelio identified as a subspecies of C. auratus). While they are certainly closely related, and often confused, they are different species, and can be identified by the following characteristics:

  • C. auratus has a more pointed snout, while the snout of C. carassius is well rounded.
  • The wild form of the goldfish (C. gibelio) often has a grey/greenish color, while crucian carps are always golden bronze.
  • Juvenile crucian carp (and tench) have a black spot on the base of the tail which disappears with age. In C. auratus, this tail spot is never present.
  • C. auratus fish have fewer than 31 scales along the lateral line, while crucian carp have 33 scales or more.
  • C. carassius has 28 to 29 fine denticles on the posterior edge of the last unbranched spiny ray of the dorsal fin, while C. auratus has 10 to 11 irregular denticles.
  • References

    Prussian carp Wikipedia

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