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The mouth of the Cidacos where it flows into the Ebro: a meeting of rivers and landscapes

The River Cidacos is a tributary of the River Ebro that flows through the municipality of Calahorra. Its presence has been a decisive factor in the location of the settlement and the configuration of the landscape. Historically, it has provided water resources for domestic supply and irrigation, as well as shaping the floodplain associated with its course. In its final stretch, the Cidacos approaches the Ebro through groves, low banks and areas of riparian vegetation, until it joins it within the Calahorra area. This confluence between the two rivers is one of the most characteristic riverine areas in the municipality, both for its scenic value and its ecological interest. The confluence allows one to observe the transition between two watercourses and understand how the rivers have shaped the formation of the landscape. The narrower channel of the Cidacos flows into the Ebro in an area where the water, vegetation and nearby agricultural activities form a landscape characteristic of the Calahorra floodplain.

A riverside space

The area around the estuary retains features typical of the riverine landscapes of the Ebro Valley. The proximity of the water encourages the growth of riparian vegetation, which lines the course of both rivers and creates a natural buffer zone between the banks and the cultivated areas.<\n <\n Among the most common plant species are:<\n
  • Poplars, aspens, tamarisk and willows
  • Reeds and other wetland plants
  • Horticultural crops on nearby plots
In the area around the Cidacos, the vegetation is further enriched by fruit trees, olive trees, almond trees and vineyards, which demonstrate the close relationship between the river landscape and the agricultural landscape.

Flora and fauna of the river environment

The confluence of the Cidacos and the Ebro supports a remarkable diversity of wildlife, particularly species associated with the water, the riverbanks and the riparian vegetation. Among the birds that can be found in this environment are the kingfisher, the white stork, the osprey, various species of herons, ducks, coots, mallards, grebes, as well as owls and thrushes in nearby areas. The waters of these rivers are home to fish and other aquatic species such as chub, barbel, carp, pike, dace, catfish, tench, eels and crayfish. There are also some mammals associated with the river environment and its surroundings, such as wild boar, rabbits, otters, European mink, foxes and genets.