Lake Arreo
View of the lake
Lake Arreo is located in the Basque Country
Lake Arreo
Lake Arreo
Lake Arreo is located in Spain
Lake Arreo
Lake Arreo
LocationLantarón, Álava, Basque Country, Spain
Coordinates42°46′42″N 2°59′28″W / 42.7783°N 2.9911°W / 42.7783; -2.9911
TypeLake
Max. length338 m (1,109 ft)
Max. width246 m (807 ft)
Surface area6.57 ha (16.2 acres)
Max. depth24.8 m (81 ft)
Water volume0.35 hm3 (280 acre⋅ft)
Designated24 October 2002
Part ofLago de Caicedo-Yuso y Salinas de Añana
Reference no.1258[1]
Official nameCaicedo Yuso eta Arreoko lakua / Lago de Caicedo Yuso y Arreo
DesignatedMay 2016
Reference no.ES2110007[2]
Area1.48 km2 (0.57 sq mi)

Lake Arreo (Basque: Arreoko aintzira, Spanish: Lago de Arreo), also known as the Caicedo-Yuso Lake (Basque: Caicedo-Yusoko aintzira, Spanish: Lago de Caicedo-Yuso) is a lake in the province of Álava, Basque Country, Spain. With a surface of 6.5 ha (16 acres),[3] it is the only natural lake in the Basque Country.

Flora and fauna

Hydrophytes found within the lake itself include Myriophyllum verticillatum, M. spicatum, Ceratophyllum submersum, Potamogeton pectinatus, P. coloratus, P. gramineus, P. nodosus, P. pusillus, P. lucens, Ranunculus trichophyllus, R. peltatus baudoti, Polygonum amphibium and Utricularia australis. The shallow shores of the lake are home to plants species including Schoenoplectus lacustris, common reed, Typha angustifolia, Cladium mariscus. Due to the existence of a salt spring near the lake, species found in saline areas such as Juncus acutus, Juncus gerardi, Spergularia marina, Parapholis incurvaand Plantago coronopus are also present.[4]

Mallards, Eurasian coots and great crested grebes have been observed at the site.[5] According to a study by the Basque Water Agency, four species of fish are present in the lake. Only the tench is autochthonous; while the largemouth bass, Eurasian carp and the pumpkinseed are introduced.[6]

References

  1. ↑ "Lago de Caicedo-Yuso y Salinas de Añana". Ramsar Sites Information Service. Retrieved 7 October 2022.
  2. ↑ "Site factsheet for Caicedo Yuso eta Arreoko lakua / Lago de Caicedo Yuso y Arreo". EUNIS. European Environment Agency. Retrieved 14 October 2022.
  3. ↑ Rico, E.; Chicote, A.; González, M.E.; Montes, C. (1995). "Batimetría y análisis morfométrico del lago de Arreo (N. España)" (PDF). Limnética. 1 (11): 55–58. doi:10.23818/limn.11.07. S2CID 132537693.
  4. ↑ Documento de información ecológica, objetivos de conservación, normas para la conservación y programa de seguimiento para la designación de la Zona Especial de Conservación (ZEC) Lago de Arreo-Caicedo de Yuso (ES2110007) y del Biotopo Protegido del Diapiro de Añana (PDF). euskadi.eus (Report) (in Spanish). Dirección de Medio Natural y Planificación Ambiental. September 2015. Retrieved 7 October 2022.
  5. ↑ "Censos de aves acuáticas nidificantes en la Comunidad Autónoma del País Vasco" (PDF). euskadi.eus (in Spanish). Basque Government. 2008. Retrieved 7 October 2022.
  6. ↑ Manzanos Arnaiz, Alberto (7 October 2011). "Estudio censal de las comunidades de peces en el Lago Arreo" (PDF). euskadi.eus (in Spanish). URA. Retrieved 7 October 2022.
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