Iberian nase (Pseudochondrostoma polylepis) fish species and information / pictures of Iberian nase - Pseudochondrostoma polylepis

Iberian nase (Pseudochondrostoma polylepis) fish species information

Scientific Name
Pseudochondrostoma polylepis

Common Name
Iberian nase

Biology
Inhabits middle stretches of rivers in areas with current. Can survive in reservoirs. Occurs in groups, especially during pre-reproduction migration (Ref. 59043). Also found in lakes (Ref. 26100). Feeds on vegetal matter, small invertebrates and detritus (Ref. 59043). 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 (Ref. 26100).

Classification

Classified By

Steindachner, 1864

Class

Ray-finned fishes (Actinopterygii)

Order

Carps (Cypriniformes)

Family

Minnows or carps (Cyprinidae)

Distribution

Region

Europe

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).

Range

41°N - 36°N, 10°W - 2°W

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic

Trophic Level

2.54 s.e. 0.24 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

40.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: subsistence fisheries; gamefish: yes

Vulnerability

Moderate to high vulnerability (49 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18; tm=2; tmax=7)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)