Pigo

Pigo
Conservation status
Vulnerable  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Cyprinidae
Genus:	Rutilus
Species:	R. pigus
Binomial name
Rutilus pigus (Lacépède, 1803)
Synonyms[2]
Cyprinus pigus Lacepède, 1803 Leuciscus roseus Bonaparte, 1839 Leuciscus ryzela Valenciennes, 1844

The pigo[3] (Rutilus pigus) is a species of freshwater fish in the roach genus Rutilus of the family Cyprinidae.[4] The fish is native to northern Italy and Switzerland. It inhabits subalpine lakes of the northern Adriatic basin from the Livenza to the Po drainage, including Lakes Maggiore, Lugano, and Como.[5]

Rutilus pigus has been termed the Danube roach. The Danube drainage is not inhabited by R. pigus in the strict sense above, however. That region is inhabited by the closely related Rutilus virgo ("cactus roach"), which until recently was considered to be the same species as R. pigus, or its subspecies R.np. virgo. R. virgo is widespread from the Iron Gate upstream.[5]

References

1. Ford, M. (2024). "Rutilus pigus". IUCN Red List of Threatened Species. 2024: e.T19785A137285638. doi:10.2305/IUCN.UK.2024-2.RLTS.T19785A137285638.en. Retrieved 27 January 2025.
2. "Rutilus pigus". Global Biodiversity Information Facility. Retrieved 31 May 2021.
3. Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol, Switzerland. 646 p.
4. Freyhof, J.; Kottelat, M. (2008). "Rutilus pigus". IUCN Red List of Threatened Species. 2008: e.T19785A9014031. doi:10.2305/IUCN.UK.2008.RLTS.T19785A9014031.en. Retrieved 16 November 2021.
5. Froese, Rainer; Pauly, Daniel, eds. (2012). "Rutilus pigus". FishBase.