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Construction at the Coterillo pond will improve the survivability of the “fartet”, an endangered fish species

The connection between the Coterillo pond and the saline circuit has improved the circulation of water, and it is believed that this will facilitate the recolonization of the “fartet” (Spanish toothcarp). Additionally, the banks of the new motes and islands will improve the surface area available to this species. The University of Murcia is performing biological monitoring of the “fartet”, studying the populations structure and abundance, among other variables.

The Spanish toothcarp (Aphanius iberus) is a small fish from the family Cyprinodontidae that lives in small streams and wetlands throughout the Mediterranean coast of Spain. The species showcases sexual dimorphism that is easily distinguishable: the males have silver and blue vertical stripes, whereas the females have multiple irregular dark spots distributed throughout the body.
This species lays its eggs in areas with abundant plant coverage in order to protect them, between the months of April and October. It is an omnivore and has high reproductive and growth rate. However, it is still one of the most endangered vertebrate species of the Iberian Peninsula.

Male Spanish toothcarp at the top of the image and female at the bottom

This fish lives in slow and shallow waters, like river estuaries and saline wetlands. The destruction, contamination and displacement of such habitats has led to the classification of the “fartet” as an Endangered species in the National Endangered Species Catalogue. Additionally, the species is also featured in Annex II of the Habitats Directive (Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora).

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