Squalius alburnoides

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Squalius alburnoides (Steindachner, 1866)

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Squalius alburnoides
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cypriniformes (Carps) > Leuciscidae (Minnows) > Leuciscinae
Etymology: More on author: Steindachner.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Subtropical; 42°N - 36°N, 9°W - 1°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Europe: Iberian Peninsula in Douro, Tagus, Sado, Guadiana, Odiel, Guadalquivir and Quarteira drainages. Introduced in Júca drainage.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 556); common length : 15.0 cm TL male/unsexed; (Ref. 556)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 7; Anal soft rays: 7 - 9. Diagnosed from other Cyprinidae in Iberian Peninsula by the following characters: barbels absent; dark midlateral stripe from snout to caudal base; body slender, depth 3.8-4.4 times in SL; 37-42 + 2-3 scales on lateral line; mouth opening upward; and anal fin with usually 8½ branched rays (Ref. 59043).

Biology     Glossary (e.g. epibenthic)

Lives in schools in lowland rivers and lakes. Feeds on invertebrates, chiefly small crustaceans and insect larvae. Breeds in April-May among aquatic plants and on stony bottoms in shallow water. Threatened due to pollution, habitat destruction and the introduction of other species (Ref. 26100). The species is unique as it represents a stable all-male lineage nested within an almost all-female hybrid lineage (Ref. 49905).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

This species originated as a hybrid that is now recognized as a species and consists only of diploid males. The males mate with triploid females that are current hybrids. These females produce haploid eggs with chromosomes that are identical to those of the males. These matings apparently produce only males.

Main reference Upload your references | References | Coordinator | Collaborators

Collares-Pereira, M.J. and M.M. Coelho, 2010. Reconfirming the hybrid origin and generic status of the Iberian cyprinid complex Squalius alburnoides. J. Fish Biol. 76(3):707-115. (Ref. 106132)

IUCN Red List Status (Ref. 130435)

  Vulnerable (VU) (A3ce); Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

More information

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00402 - 0.01570), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.1   ±0.40 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).