Luciobarbus microcephalus

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Luciobarbus microcephalus
Luciobarbus microcephalus

Luciobarbus microcephalus

Systematics
without rank: Otophysa
Order : Carp-like (Cypriniformes)
Subordination : Carp fish-like (Cyprinoidei)
Family : Carp fish (Cyprinidae)
Genre : Luciobarbus
Type : Luciobarbus microcephalus
Scientific name
Luciobarbus microcephalus
Almaça , 1966

Luciobarbus microcephalus , in English Smallhead Barbel , Spanish Barbo Cabecicorto and Portuguese Barbo-de-Cabeça-Pequena , is a medium-sized barbel species that is endemic only to the Iberian Peninsula.

description

Luciobarbus microcephalus differs from other species of the genera Luciobarbus and Barbus 45 to 50 scales in the lateral line row (SL), the last unbranched fin ray of the dorsal fin is spiky and serrated on most of its rear edge. The dorsal fin is concave in its rear part. The head length is 22 to 27% of the standard length . The lower lip is narrow, without a middle lobe, the tip of the lower jaw is not covered by the lower lip. The fish are already fully grown with a body length of 26 to 40 centimeters. The final weight is between eight and nine kilograms. In waters like the Lagunas de Ruidera, Peñarroya or Tablas de Daimiel, these weights are even exceeded. Specimens weighing nine to twelve kilograms have already been caught in the Rio Guadiana and Tajo.

distribution and habitat

Distribution area of ​​Barbus microcephalus (green)

Luciobarbus microcephalus occurs in Portugal and Spain . Their occurrence is particularly common in lowland rivers such as the middle and lower reaches of the Rio Guadiana or in the river system of the Rio Tajo . It was partially introduced in Morocco . Their natural habitat are deep and slow flowing rivers and streams as well as reservoirs.

Way of life

L. microcephalus feeds on plants, detritus and small animals.

Use

Luciobarbus microcephalus is used as a sport fish for anglers in some regions.

Endangerment status

The fish species is classified as endangered by the IUCN . In the Bern Convention , Appendix III, L. microcephalus is listed as a species of fish worthy of protection. The habitat and density of individuals of Luciobarbus microcephalus will continue to decrease in the future. It is assumed that by 2020 only half of the population will exist that was there at the beginning of the 21st century. The main reasons for the threat are water pollution, water deprivation for agricultural irrigation and dam construction, such as the planned Alquedi dam. Introduced alien fish species are another problem.

Web links

  • [1] Spanish website about Luciobarbus microcephalus
  • [2] Portuguese website about Luciobarbus microcephalus

Notes and individual references

  1. ↑ Trans. Kleinkopf Barbe
  2. ↑ Pedro M. Leunda ∗, Benigno Elvira, Filipe Ribeiro, Rafael Miranda, Javier Oscoz, Maria Judite Alves and Maria João Collares-Pereira: International Standardization of Common Names for Iberian Endemic Freshwater Fishes, Limnetica 28 (2), 2009 on http: //www.ucm.es/info/zoo/Vertebrados/elvira/Leundaetal2009.pdf
  3. ↑ a b c d e Luciobarbus microcephalus on Fishbase.org (English)
  4. ↑ Spanish giant barbs at http://www.cipro.de/berichte/daniel/barben/riesenbarben.htm
  5. ^ Fishing World Records
  6. ↑ Archived copy ( memento of the original from January 3, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.jjphoto.dk
  7. ↑ AM Pires, MM Coelho, IG Cowx: Diet and growth of two sympatric Iberian barbel, Barbus steindachneri and Barbus microcephalus, in the middle reaches of the Guadiana Basin (Portugal) . In: Folia Zoologica . tape 50 , no. 4 , 2001, ISSN  0139-7893 , p. 291-304 .
  8. ↑ Beningno Elvia: Conservation Status of Endemic Freshwater Fish in Spain on archived copy ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / ocw.um.es
  9. ^ Convention on the Conservation of European Wildlife and Natural Habitats
  10. ↑ V. Hermoso, M. Clavero, F. Blanco-Garrido and J. Prenda: Assessing freshwater fish sensitivity to different sources of perturbation in a Mediterranean basin, Ecology of Fresh Water Fish, 2009, on http: //www.udg. edu / portals / 92 / Bio% 20Animal / pdf / Clavero% 20fish-perturb2009.pdf
  11. ↑ J. Carmona, personal. Messages
  12. ↑ https://apiv3.iucnredlist.org/api/v3/taxonredirect/2580