Arade chub (Squalius aradensis)

General data
- Main name: Arade chub
- Climates: Subtropical
- Habitat: Freshwater
- Native: Europe
Classification
- Genus: Squalius - Chubs
- Family: Leuciscidae - Chub family
- Order: Cypriniformes - Carps
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes
Description
Squalius aradensis is a ray-finned fish species in the family Cyprinidae, growing to 13 cm (5.1 in) SL. It is endemic to Portugal where it is found in only three river basins: Arade, Algibre, and Bordeira basins. It is threatened by water extraction, drought, and introduction of exotic fish species. Squalius aradensis is an ubiquitous species which inhabits small to medium-sized streams with Mediterranean water regime. It may be restricted to very small pools during summer. It breeds in shallow riffle habitats in fast-flowing water.