Protochondrostoma genei 

Scope: Global & Europe
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Cypriniformes Cyprinidae

Scientific Name: Protochondrostoma genei (Bonaparte, 1839)
Common Name(s):
English South European Nase
Chondrostoma genei (Bonaparte, 1839)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2006
Date Assessed: 2006-01-31
Needs updating
Assessor(s): Crivelli, A.J.
Reviewer(s): Bianco, G. & Kottelat, M. (Mediterranean Workshop, Dec. 2004)
This species is widespread and common in many localities. It is, however, declining or disappearing from a number of places due to the introduction of several alien species. Currently it is assessed as Least Concern. In central Italy it has been introduced and has itself become a pest and is now the main threat to Rutilus rubilio and Leuciscus lucimonis. Extent of occurrence (EOO) >20,000 km2 and area of occupancy (AOO) >2,000 km2.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Restricted to northeastern Italy including the river basins: Vomano, Tronto, Esino, Cesano, Metauro, Foglia, Po, Adige, Brenta, Piave, Livenza, Tagliamento and Isonzo. It has been introduced in central Italy (Tuscany and Latium). It is apparently extinct in the river Soča, the Slovenian stretch of River Isonzo. In this river this species is still reported in few populations as result of interaction with the introduced C. nasus and others riverine species. It no longer exists in the Adriatic basin of Slovenia in the river Vipava, a tributary of the Soča (M. Povz pers. comm.).
Countries occurrence:
Regionally extinct:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:A common species but it is known to be declining in some localities. It has nearly disappeared in the middle and lower course of Po basin due to interaction with introduced species, such as Silurus glanis, Leuciscus idus, Aspius aspius and Chondrostoma nasus. In others rivers this species should be considered as stable.
Current Population Trend:Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:Prefers running waters in the foothill zone of mountainous regions, with gravely or sandy substrates. It is also found in lakes. Warm water adapted.

Threats [top]

Major Threat(s): Habitat destruction, water pollution and extraction. The introduction of Chondrostoma nasus is a major current threat having been responsible of the near extirpation of this species from Slovenia 20 years ago.

Conservation Actions [top]

Conservation Actions: Listed in the Appendix II of the European Union Habitats Directive and in the Appendix III of the Bern Convention.

Errata [top]

Errata reason: The Distribution text previously incorrectly stated that this species was extinct in the river Sava in Slovenia, whereas it is extinct in the river Soča in Slovenia. The river Sava is outside of the distribution range of this species. Formatting errors in the text were also corrected.

Citation: Crivelli, A.J. 2006. Protochondrostoma genei (errata version published in 2016). The IUCN Red List of Threatened Species 2006: e.T4786A88247276. . Downloaded on 26 September 2018.
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