Prussian carp
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The Prussian carp, silver Prussian carp or Gibel carp (Carassius gibelio) is a cyprinid of the genus Carassius in the subfamily Cyprininae, which includes other fish such as the Crucian carp, goldfish, and barbs. It is medium-sized when fully-grown, and does not exceed a weight of 3 kilograms (6.6 lb) and a length of 45 centimetres (18 in). They are usually silver, although other color variations exist. They are omnivorous and feed on plankton, invertebrates, plant material and detritus. Originally from Siberia or central Europe,[2] they have been introduced to and are now inhabiting lakes, ponds, and slow-moving rivers throughout Europe, North America, and Asia.[2][3][4][5]
Prussian carps are a highly invasive fish species in areas outside their native range. They reproduce and spread rapidly. In 2020, scientists demonstrated that a small proportion of fertilized Prussian carp eggs ingested by waterfowl survive passing through the digestive tract and hatch after being retrieved from the feces.[6][7] Birds exhibit strong preference for fish eggs, while cyprinids produce hundreds of thousands of eggs at a single spawning event. These data indicate that despite the low proportion of eggs surviving the digestive tract of birds, endozoochory might provide a potentially overlooked dispersal mechanism of Prussian carps. If proven under natural circumstances, endozoochorous dispersal of invasive fish could be a strong conservation concern for freshwater biodiversity.
Prussian carp are capable of gynogenesis, meaning sperm is required to fertilize their eggs, but the male gamete does not contribute any DNA to the embryo. Females lay eggs and then "steal" sperm from related species.[8] In other words, they are able to reproduce from unfertilized egg.[9]
Description
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.[10]
References
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- ^ Page Module:Citation/CS1/styles.css has no content."Prussian carp (Carassius gibelio)" (PDF). Archived from the original (PDF) on 2010-08-12. Retrieved 2009-04-28.
- ^ Page Module:Citation/CS1/styles.css has no content.Brykov, Vl. A.; Polyakova, N. E.; Skurikhina, L. A.; Dolganov, S. M.; Eliseikina, M. G.; Kovalev, M. Yu. (2002). "Mitochondrial DNA Variation in Goldfish Carassius auratus gibelio from Far Eastern Water Reservoirs". Russian Journal of Genetics. 38 (10). SpringerLink: 1176–1180. doi:10.1023/A:1020604905154. S2CID 11234180.
- ^ Page Module:Citation/CS1/styles.css has no content."Experiment shows it is possible for fish to migrate via ingestion by birds". phys.org. Retrieved 5 July 2020.
- ^ Page Module:Citation/CS1/styles.css has no content.Lovas-Kiss, Ádám; Vincze, Orsolya; Löki, Viktor; Pallér-Kapusi, Felícia; Halasi-Kovács, Béla; Kovács, Gyula; Green, Andy J.; Lukács, Balázs András (18 June 2020). "Experimental evidence of dispersal of invasive cyprinid eggs inside migratory waterfowl". Proceedings of the National Academy of Sciences. 117 (27): 15397–15399. Bibcode:2020PNAS..11715397L. doi:10.1073/pnas.2004805117. ISSN 0027-8424. PMC 7355035. PMID 32571940.
- ^ Page Module:Citation/CS1/styles.css has no content."Attack of the clones: Sperm-stealing Prussian carp threaten to overwhelm Alberta waterways". CBC. 31 May 2018. Retrieved 18 July 2022.
- ^ Page Module:Citation/CS1/styles.css has no content.İlhan, Ali; Sari, Hasan; Kurtul, Irmak; Akçali, Miraç (25 April 2020). "Meriç Nehri Balık Faunasının Güncel Durumu ve Yabancı Türlerin Yerli Türler Üzerindeki Olası Etkilerinin Değerlendirilmesi". Journal of Limnology and Freshwater Fisheries Research (in Türkçe). 6 (1): 75–87. doi:10.17216/limnofish.504512.
- ^ Page Module:Citation/CS1/styles.css has no content."Prussian carp: Carassius gibelio". NatureGate. Retrieved 14 December 2013.
External links
- Page Template:Sister-inline/styles.css has no content.Script error: No such module "Sister project logo". Media related to Script error: No such module "Commons link". at Wikimedia Commons
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