Hazar Gölü ve Dicle Nehri Yukarı Havzasında Yeni Bir Squalius Türünün Tanımlanması (Teleostei: Leuciscidae)

Bu çalışmada, Hazar Gölü, Dicle, Fırat ve Kueik nehirlerinden Squalius cepphalus grubuna ait 4 tür tespit edilmiştir. Fırat Nehri’nin batı drenajlarında S. seyhanensis, Kuzey drenajlarında S. semae ve Kueik Nehri’nden S. berak dağılım gösterdiği saptanmıştır. Hazar ve Dicle popülasyonları 28 metrik ve 9 meristik karakter bakımından Fırat ve Kueik nehirlerinden rapor edilen türler ile karşılaştırılmış ve bu popülasyonların henüz tanımlanmamış olduğu saptanmıştır. Burada, bu popülasyonları S. verepi adında yeni tür olarak tanımlanmaktatır.

Anahtar Kelimeler:

morfoloji, taksonomi, tatlısu balıkları, tatlısu kefali, Türkiye.

Description of a new species Squalius from Lake Hazar and Upper Tigris River drainages in Anatolia (Teleostei: Leuciscidae)

In a study of the fishes of the Lake Hazar, and Tigris, Euphrates and Kueik rivers were recorded four species of Squalius belonging to the Squalis cephalus-group were found: The western drainage of Euphrates River (Tohma Stream) population was identified as S. seyhanensis, northern drainages of Euphrates as S. semae, and the Kueik populations as S. berak. The comparison of 28 metric, 9 meristic parameters and morphological characters showed that the populations of the Lake Hazar and the upper Tigris drainages are distinct and belong to a hitherto unnamed species. We describe it here as Squalius verepi sp. n.

Keywords:

chub, freshwater fish, morphology, taxonomy, Turkey.,

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