Iberian nase (Pseudochondrostoma polylepis)

Scientific name: Pseudochondrostoma polylepis Steindachner, 1864

The Iberian nase (Pseudochondrostoma polylepis) is a freshwater fish of the family Cyprinidae.

Biology

Inhabits middle stretches of rivers in areas with current. Can survive in reservoirs. Occurs in groups, especially during pre-reproduction migration. Also found in lakes. Feeds on vegetal matter, small invertebrates and detritus. Spawning occurs in spring in shallow water, on gravel and sometimes on timber pilings in the river. Threatened due to the introduction of other species.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Pseudochondrostoma polylepis
Family
Cyprinidae (Minnows or carps)
Order
Cypriniformes (Carps)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
40.0
Environment
Freshwater; benthopelagic
Climate
Temperate
Distribution
Europe: Tagus drainage in Spain and Portugal; Vouga, Modego, Algoa and Sado drainages in Portugal. Introduced in Jucar and Segura drainages in Spain. In Appendix III of the Bern Convention (protected fauna).
Conservation status (IUCN)
Least Concern (LC)
Threat to humans
Harmless
Uses
Fisheries: subsistence fisheries; gamefish: yes
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18; tm=2; tmax=7)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

Last updated