Alburnus akili, Battalgil, 1942

Alburnus akili View in CoL View Figure

Common name. Beyşehir bleak.

Diagnosis. Distinguished from other species of Alburnus in Central Anatolia, Aegean, Marmara, and Black Sea basins by: ● 72–90 total lateral line scales / ○ 8½ branched dorsal rays / ○ 13½ branched anal rays. Size up to 150 mm SL.

Distribution View Figure . Türkiye: Lakes Beyşehir and Suğla (Seydişehir) basins as well as Çarşamba channel connecting both lakes.

Habitat. Lacustrine known only from lakes and slow-flowing channels.

Biology. No data.

Conservation status. Extinct; last time recorded in 1985, when population was already small. Extinction followed introduction of non-native Sander lucioperca in 1978 and 1980.

Remarks. In the original description, 85–88 total scales were given for this species, while a later study gives only 72–75 total scales. The correct count remains unclear, but F. Küçük counted 78–80 total lateral line scales (pers. comm.). Since the early 2000s, the non-native A. escherichii has become common in the former range of A. akili .

Further reading. Battalgil 1942 (description); Erdemli 1982 (morphology); Freyhof & Özuluğ 2010a; Küçük 2012 (extinction).