Chondrostoma meandrense, Elvira, 1987

Freyhof, Jörg, Yoğurtçuoğlu, Baran, Jouladeh-Roudbar, Arash & Kaya, Cüneyt, 2025, Handbook of Freshwater Fishes of West Asia, De Gruyter : 338

Chondrostoma meandrense

Common name. Işıklı nase.

Diagnosis. Distinguished from other species of Chondrostoma in Aegean, Marmara, and Black Sea basins by: ○ 52−60 total lateral-line scales / ○ 6−6, rarely 6–5, pharyngeal teeth / ○ 8½−9½, branched dorsal rays / ○ 9−10½ branched anal rays / ○ 23−30 gill rakers / ○ thick sheath covering lower lip / ○ usually 8 branched pelvic rays. Size up to 209 mm SL.

Distribution . Türkiye: Lake Işıklı basin in upper Büyük Menderes drainage.

Habitat. Lakes, reservoirs, medium-sized streams, and large rivers have rocky or gravelly bottoms and moderate to slow currents.

Biology. Lives up to 5 years. Matures at 1–2 years. Spawns March–May.

Conservation status. EN; appears to be declining within its very small range.

Further reading. Elvira 1987 (description); Özcan & Balık 2011 (age and growth); İlhan et al. 2011 (growth, reproductive biology; as C. nasus ); Güçlü et al. 2013 (distribution); Güçlü et al. 2018 (morphology); Çiftçi et al. 2020 (phylogeny).

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Chondrostoma meandrense

Distribution