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Squalius carolitertii

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Squalius carolitertii is a species of fresh-water fish in the family Cyprinidae. It is found in Portugal and Spain, and known there as the bordallo, escalo or gallego.

Its natural habitats are rivers and intermittent rivers. It is not considered threatened by the IUCN.

Distribution

The Northern Iberian chub, Squalius carolitertii is a small endemic cyprinid inhabiting the rivers of the Iberian Peninsula across a large area, including the Douro, Mondego, Lima, Minho, and Lérez basins.[2] Recently several researchers have reported this species for the first time from the upper reaches of the Alberche River (a tributary of the Tagus basin in central Spain) and in the Oitavén River (a tributary of the Verdugo River in northwestern Spain).[3]

Diet

S. carolitertii is an omnivorous fish feeding predominantly on aquatic invertebrates, being nymphs of Baetis spp. the most abundant prey, although detritus is an important food item.[4] Moreover, in S. carolitertii, as in many other fish species, there is normally a change in the diet composition during the life of the fish, and these age-related diet shifts occur at three different levels: (1) frequency of occurrence of detritus decreases with fish age; (2) prey selection varies with fish age; and (3) mean prey size increases as fish size increased.[5]

References

  1. ^ Crivelli, A.J. (2006). "Squalius carolitertii". IUCN Red List of Threatened Species. 2006: e.T61261A12455457. doi:10.2305/IUCN.UK.2006.RLTS.T61261A12455457.en. Retrieved 14 November 2021.
  2. ^ Doadrio I., ed. (2001). Atlas y libro rojo de los peces continentales de España. Ministerio de Medio Ambiente y Consejo Superior de Investigaciones Científicas, Madrid.
  3. ^ Perea S., Garzón P., González J.L., Almada V.C., Pereira A. & Doadrio I. (2011). "New distribution data on Spanish autochthonous species of freshwater fish". Graellsia. 67 (1): 91–102.{{cite journal}}: CS1 maint: uses authors parameter (link)
  4. ^ Sánchez-Hernández J. & Cobo F. (2011). "Summer food resource partitioning between four sympatric fish species in Central Spain (River Tormes)". Folia Zoologica. 60 (3): 189–202.
  5. ^ Sánchez-Hernández J. & Cobo F. (2012). "Ontogenetic dietary shifts and food selection of endemic Squalius carolitertii (Actinopterygii: Cypriniformes: Cyprinidae) in River Tormes, Central Spain, in summer". Acta Ichthyologica et Piscatoria. 42 (2): 101–111.
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Squalius carolitertii: Brief Summary

provided by wikipedia EN

Squalius carolitertii is a species of fresh-water fish in the family Cyprinidae. It is found in Portugal and Spain, and known there as the bordallo, escalo or gallego.

Its natural habitats are rivers and intermittent rivers. It is not considered threatened by the IUCN.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN