Alburnus akili Battalgil, 1942
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The Beyşehir bleak (Alburnus akili), known in Turkish as gökçe balığı, is an extinct species of freshwater fish in the family Leuciscidae, .
The Beyşehir bleak was endemic to Lake Beyşehir in Central Anatolia, Turkey. It declined after the introduction of Sander lucioperca (zander or pikeperch) into the lake in 1955, and the introduction of A. escherichii. Overfishing also seems to have contributed to the extinction. The fish was last seen in 1998 and is now listed as extinct by the IUCN.
This was a short-lived species and only grew to 1.5 cm (0.59 in) long.
Wikipedia contributors, Beyşehir bleak; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T18:58:02.141933+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Alburnus akili Battalgil, 1942
- Name authority
- Battalgil, 1942
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cypriniformes
- Family
- Cyprinidae
- Genus
- Alburnus
- Extinction status
- Not supplied by this source
Source habitat flags: Marine: no · Freshwater: yes · Terrestrial: no. These do not form a complete habitat description.
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- gigaclassActinopterygii
- superclassActinopteri
- classTeleostei
- orderCypriniformes
- familyCyprinidae Rafinesque, 1815
- subfamilyAlburninae Girard, 1858
- genusAlburnus Rafinesque, 1820
- speciesAlburnus akili Battalgil, 1942
Close classified relatives
These entries share the source’s genus, Alburnus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Alburnus amirkabiri Mousavi-Sabet, Vatandoust, Khataminejad, Eagderi, Abbasi, Nasri, Jouladeh & Vasil'eva, 2015 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus arborella (Bonaparte, 1841) | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus battalgilae Özuluğ & Freyhof, 2007 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus caeruleus Heckel, 1843 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus carinatus Battalgil, 1941 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus chalcoides (Güldenstädt, 1772) | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus demiri Özuluğ & Freyhof, 2008 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus derjugini Berg, 1923 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus escherichii Steindachner, 1897 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus filippii Kessler, 1877 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus hohenackeri Kessler, 1877 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Alburnus istanbulensis Battalgil, 1941 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- Battalgil, F. (1942). Türkiye tatli su baliklari hakkinda. Contribution à la connaissance des poissons des eaux douces de la Turquie. Revue de La Faculté Des Sciences de l’Université d’Instanbul, Série B: Sciences Naturelles, 7 (4): 287–306. Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:BGW9. Classification follows source parent identifiers. English common names may vary by region.