IberiaNature

• Endemic to the Tagus and Guadiana river basins in Spain and Portugal.
• It is estimated that B. comizo has undergone a population decline of at least 30% in the past 10 years due to water extraction, pollution and introduced taxa (Crivelli, A. pers comm.) this has led to a continuous decline in numbers and in area of occupancy.
• It prefers the middle and lower reaches of rivers, in deep and slow waters with abundant submerged vegetation. It occurs also in reservoirs. It is a large size barbel (>500mm )
• Source: UN Red List

• Ebro River and other rivers of the northern and eastern Pyrenees basins

• Found in Portugal and central Spain: Miño, Duero and Tajo
• A long-lived species found in rivers and occasionally in lakes. Its diet consists of encrusting algae, diatoms and invertebrates. Spawning occurs in spring in shallow water, on gravel and sometimes on timber pilings in the river. Is threatened due to the introduction of other species
• Source Fishbase

• Egg-laying carnivorous fish which is used for mosquito control. Occurs in swamps, lagoons and lowland water bodies with little current. This short-lived species is now threatened throughout its entire range because of habitat destruction and because of the introduction of Gambusia affinis
• Source Fishbase

• An endemic fish to the Iberian Peninsula. Most of the distribution is within Spain and some in Portugal (Guadiana river basin) (extent of occurrence <5,000 km²
• A. hispanica has experienced a decline in population of >50% in 10 years, and it is ongoing in spite of the establishment of a conservation program. The population is fragmented due to dams and is declining due to water extraction, introduced species and pollution.
• This species lives most of the time in small intermittent streams of the Guadiana River basin with high dissolved oxygen concentrations, coarse substratum, shallow depth and water temperature below 25°C. It is a short-lived species (maximum three years old) achieving a small size (< 60 mm). Reproduction takes place in April¿May. It is a species with limited dispersal. (Doadrio 2001).
• Source: UN Red List

See also 02/04 Endemic Spanish Minnow ( Jarabugo - Anaecypris hispanica) under serious threat in Guadiana basin (El Pais)

• Endemic to river basins of Turia and Mijares in eastern Spain

• Restricted to six locations on the Mediterranean coastal area of Spain. It lives in marshes, wetlands and springs.
• This species has undergone a population decline of more than 80% in the past 10 years due to habitat (marsh) destruction for urbanisation, agricultural pollution and the introduction of alien predators (Carmona, J and Elvira, B. pers comm).
• Threatened by Drought, habitat destruction, water extraction, domestic and agricultural pollution and introduction of Gambusia holbrooki
• Source: UN Red List