Research Article |
Corresponding author: Cüneyt Kaya ( cnytkaya@yahoo.com ) Academic editor: Nicolas Hubert
© 2020 Cüneyt Kaya, Esra Bayçelebi, Davut Turan.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Kaya C, Bayçelebi E, Turan D (2020) Taxonomic assessment and distribution of fishes in upper Kura and Aras river drainages. Zoosystematics and Evolution 96(2): 325-344. https://doi.org/10.3897/zse.96.52241
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In the present study, the actual fish fauna of the upper Kura and Aras river drainages in Turkey were re-examined. The distribution and latest taxonomic status of the species were assessed. The study area comprises the upper part of Kura and Aras river drainages, in Turkey. Overall, 32 sampling sites were prospected between 2004–2018 to inventory fish species in the area and a total of 33 species were recognized, five of which are recorded for the first time from the Turkish part of upper Aras river drainage, namely Alburnus hohenackeri, Blicca bjoerkna, Gobio artvinicus, Neogobius fluviatilis and Rhodeus amarus.
Anatolia, biodiversity, Caspian Sea basin, fish fauna
The Kura and Aras rivers and their tributaries are located in the south of the Caucasus Mountains. Both rivers originate in Anatolia and flow towards the east. Kura, after leaving the borders of Turkey, passes through Georgia, and then flows into Azerbaijan. Aras, before leaving Turkey, flows along the borders between Turkey and Armenia, between Turkey and Nakhchivan and then flows throughout the borders between Iran and three countries (Nakhchivan, Armenia and Azerbaijan, respectively). Both rivers further merge in Sabirabad (Azerbaijan) and flow into the Caspian Sea.
Çiçek and Sungur Birecikligil (2016) listed fish species of the upper Kura-Aras River drainages based on their own observations and earlier records in the literature. They observed 19 species but listed 32 species by including 13 species that were recorded in the previous studies.
Inconsistent and erroneous occurrence records of species given by previous studies from upper Kura and Aras drainages have resulted in contradictory taxonomic evaluations among researchers. Therefore, here we attempt to re-assess the fish fauna of the upper Kura and Aras river drainages based on materials from our field surveys and up-to-date taxonomic nomenclature.
The study area comprises the upper part of Kura and Aras river drainages, the Caspian Sea basin. Overall, 32 sampling sites, 9 from Kura and 23 from Aras drainages, were detected to reveal fishes in the area (Table
Fishes were caught between 2004–2018 by Samus 1000 pulsed DC electro-fishing equipment, cast and gill nets from 32 sampling sites (Fig.
No | Sampling Site | Coordinates | Observed Species | |
---|---|---|---|---|
Kura River | 1 | Stream Karaman at Aşıkzülal | 41.4371N, 42.6226E | Alburnoides eichwaldii, Barbus cyri, Ponticola cyrius |
2 | Stream Çöt Suyu | 41.2998N, 42.7087E | Alburnoides eichwaldii | |
3 | Stream Kınavur at Çataldere | 41.1976N, 42.6135E | Salmo caspius | |
4 | Stream Açıkyazı | 41.1443N, 42.5908E | Squalius agdamicus | |
5 | Stream Toros | 41.1115N, 42.4468E | Salmo caspius | |
6 | Kura River at Yalnızçam | 41.0709N, 42.4844E | Alburnoides eichwaldii, Alburnus filipii, Barbus cyri, Capoeta capoeta, Carassius gibelio, Leucalburnus satunini, Romanogobio macropterus, Squalius agdamicus | |
7 | Stream Çakır | 40.9669N, 42.5861E | Acanthobrama microlepis, Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta, Chondrostoma cyri, Leucalburnus satunini, Oxynoemacheilus cyri, Romanogobio macropterus, Sabanejewia aurata, Squalius agdamicus | |
8 | Stream Ölçek | 41.1340N, 42.8560E | Acanthobrama microlepis, Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta, Leucalburnus satunini, Oxynoemacheilus brandtii, O. cyri, Ponticola cyrius, Sabanejewia aurata, Squalius agdamicus | |
9 | Lake Aktaş | 41.1917N, 43.1737E | Pseudorasbora parva | |
Aras River | 10 | Stream Doğruyol | 41.0620N, 43.3450E | Acanthobrama microlepis, Alburnus filipii, Capoeta capoeta, Oxynoemacheilus veyselorum |
11 | Lake Çıldır | 41.0449N, 43.2804E | Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta, Carassius gibelio, Chondrostoma cyri, Cyprinus carpio, Leuciscus aspius, Oncorhynchus mykiss, Squalius turcicus | |
12 | Stream Büyük Çayır | 40.8431N, 43.3222E | Alburnus filippii, Oxynoemacheilus brandtii, O. veyselorum | |
13 | Stream Fehmiharabesi | 40.7723N, 43.2959E | Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta, Oxynoemacheilus brandtii, O. veyselorum, Sabanejewia aurata, Squalius turcicus | |
14 | Stream Tahtakaya | 40.8539N, 43.0188E | Salmo aff. caspius | |
15 | Stream Kayalık | 40.8201N, 43.1268E | Salmo aff. caspius | |
16 | Stream İncilipınar | 40.8211N, 43.0751E | Salmo aff. caspius | |
17 | Steam Susuz at Susuz | 40.7806N, 43.1411E | Alburnoides eichwaldii, Alburnus filippii, Capoeta capoeta | |
18 | Stream Kars | 40.5814N, 43.0591E | Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta, Chondrostoma cyri, Cobitis saniae, Squalius turcicus, Silurus glanis, Oxynoemacheilus veyselorum, Romanogobio macropterus | |
19 | Stream Maksutçuk | 40.5160N, 42.9510E | Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta | |
20 | Stream Kekeç at Selim | 40.4715N, 42.8005E | Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta, Cobitis saniae, Oxynoemacheilus brandtii, O. veyselorum, Squalius turcicus | |
21 | Stream Boyalı | 40.4478N, 42.5833E | Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta, Oxynoemacheilus veyselorum, Squalius turcicus | |
22 | Stream Kars at Çatak | 40.4016N, 42.6783E | Alburnoides eichwaldii, Squalius turcicus | |
23 | Stream Kızılçubuk | 40.3736N, 42.5366E | Alburnoides eichwaldii, Capoeta capoeta, Oxynoemacheilus veyselorum | |
24 | Stream Keklik | 40.2955N, 42.6565E | Barbus cyri, Salmo cf. ciscaucasicus | |
25 | Aras River at Köprüçay | 39.9699N, 41.8883E | Alburnoides eichwaldii, Acanthobrama microlepis, Alburnus filippii, Capoeta capoeta, Cobitis saniae, Romanogobio macropterus, Squalius turcicus | |
26 | Stream Digor | 40.3731N, 43.4271E | Alburnoides eichwaldii, Barbus cyri, Capoeta capoeta, Oxynoemacheilus brandtii, O. veyselorum, Squalius turcicus | |
27 | Aras River west of Donandı | 40.1097N, 43.4349E | Alburnoides eichwaldii, Acanthobrama microlepis, Capoeta capoeta | |
28 | Stream Gaziler | 40.1072N, 43.4513E | Acanthobrama microlepis, Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Carassius gibelio, Cyprinus carpio, Luciobarbus capito, Luciobarbus mursa, Oxynoemacheilus brandtii | |
29 | Lake Balık | 39.7451N, 43.5385E | Barbus cyri, Cyprinus carpio, Squalius turcicus, Capoeta capoeta, Salmo cf. ciscaucasicus | |
30 | Stream Aktarla | 39.7373N, 43.5815E | Alburnoides eichwaldii, Barbus cyri | |
31 | Stream Sarısu | 39.5409N, 44.0044E | Barbus cyri, Capoeta capoeta | |
32 | B-20 canal at Aralık | 39.8936N, 44.5256E | Alburnoides eichwaldii, Alburnus filippii, A. hohenackeri Barbus cyri, Blicca bjoerkna, Capoeta kaput, Chondrostoma cyri, Cyprinus carpio, Gobio artvinicus, Neogobius fluviatilis, Rhodeus amarus, Silurus glanis, Squalius turcicus |
Overall, 33 fish species (Table
Twenty species, which were reported in earlier studies, were excluded from the fish fauna of the upper Kura-Aras drainages. Some of these species were already highlighted as declining by some authors or accepted as extinct (See Table
List of the species to be excluded from the checklist of Kura-Aras drainages in Turkey.
Species | Explanation | |
---|---|---|
1 | Abramis brama (Linnaeus, 1758) | The species reported in the Turkish Kura and Aras drainages by |
2 | Acipenser persicus Borodin, 1897 | The species was erroneously reported in the upper Aras drainages by |
3 | Alburnus chalcoides (Güldenstädt, 1772) | Because of the problematic taxonomy of the genus ( |
4 | Alosa caspia (Eichwald, 1838) | This predominantly marine and estuarine species has never been observed in any parts of the Turkish Kura and Aras drainages, except erroneously in a report by |
5 | Alosa braschnikowi (Borodin, 1904) | The species was recorded in Turkish Aras drainages as Rutilus sojuchbulagi ( |
6 | Caspiomyzon wagneri (Kessler, 1870) | It is an endemic lamprey to the Caspian Sea basin and may be extinct from Kura ( |
7 | Chelon saliens (Risso, 1810) | The species has never been reported in the upper Kura and Aras drainages until an erroneous record by |
8 | Gambusia holbrooki Girard, 1859 | Erroneously reported to be in the upper Aras drainages based on the following literature “ |
9 | Luciobarbus caspius Berg, 1914 | The species erroneously reported in the upper Aras drainage by |
10 | Luciobarbus brachycephalus (Kessler, 1872) |
|
11 | Neogobius melanostomus (Pallas, 1814) | These three gobiid species had never been reported in the upper Kura and Aras drainages until they were erroneously recorded by |
12 | Neogobius syrman (Pallas, 1814) | |
13 | Ponticola ratan (Pallas, 1814) | |
14 | Proterorhinus marmoratus (Pallas, 1814) | The species reported from lower reaches of Aras, near Baku ( |
15 | Romanogobio persus (Günther, 1899) | The type locality of this species from Gader Chai, Lake Urmia basin. The specimens collected from Horasan (Erzurum) were identified as R. persus (Kuru, 1975). This record was followed by |
16 | Rutilus kutum (Kamensky, 1901) | The species recorded from Turkey as Rutilus frisii caspius |
17 | Sabanejewia caspia (Eichwald, 1838) | The species reported in the upper Kura and Aras drainages by |
18 | Sander lucioperca (Linnaeus, 1758) | It was reported that the species spawned in the lower and middle Kura River ( |
19 | Squalius orientalis Heckel, 1847 | The species was erroneously reported in the upper Aras drainages by The type locality of the species is Abkhazia, Black Sea basin. S. turcicus and S. agdamicus are inhabiting Kura and Aras drainages ( |
20 | Stenodus leucichthys Abdurakhmanov, 1950 | The species was erroneously reported to be in the upper Aras drainage by |
Kura barbel / Kura bıyıklı balığı.
Not evaluated (NE).
FFR 194, Stream Karaman at Aşıkzülal, Kura drainage, 41.4413N, 42.6591E. –FFR 219, Kura River at Yalnızçam, 41.0709N, 42.4844E. –FFR 234, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 166, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E. –FFR 217, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E. –FFR 8817, Stream Fehmiharabesi at Akçalar, Aras drainage, 40.7723N, 43.2959E. Not preserved, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 188, Stream Maksutçuk west of Dikme, Aras drainage, 40.5160N, 42.9510E. –FFR 195, Stream Kekeç at Selim, Aras drainage, 40.4715N, 42.8005E. –FFR 216, Stream Boyalı at Boyalı, Aras drainage, 40.4478N, 42.5833E. –FFR 165, Stream Keklik 6 km southeast of Sarıkamış, Aras drainage, 40.2955N, 42.6565E. –FFR 220, Stream Digor at Digor, Aras drainage, 40.3731N, 43.4271E. –FFR 215, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E. Not preserved, Lake Balık at Tanyolu, Aras drainage, 39.7451N, 43.5385E. –FFR 8804, Stream Aktarla at Aktarla, a southern drainage of Lake Balık, 39.7373N, 43.5815E. –FFR 221, Stream Sarısu West of Doğubeyazit, Aras drainage, 39.5409N, 44.0044E. –FFR 233, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
Widespread in tributaries of Kura and Aras rivers.
Seven khramulya; Caucasian scraper* / Kafkasya sirazı*.
Least concern (LC).
FFR 1812, Kura River at Yalnızçam, 41.0709N, 42.4844E. –FFR 1815, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 1606, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E. –FFR 1608, Stream Doğruyol at Doğruyol, Aras drainage, 41.0620N, 43.3450E. –FFR 1819, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E. Not preserved, Stream Fehmiharabesi at Akçalar, Aras drainage, 40.7723N, 43.2959E. –FFR 1603, Steam Susuz at Susuz, Aras drainage, 40.7806N, 43.1411E. Not preserved, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 1607, Stream Maksutçuk west of Dikme, Aras drainage, 40.5160N, 42.9510E. –FFR 1604, Stream Kekeç at Selim, Aras drainage, 40.4715N, 42.8005E. –FFR 1814, Stream Boyalı at Boyalı, Aras drainage, 40.4478N, 42.5833E. –FFR 1800, Stream Kızılçubuk at Kızılçubuk, Aras drainage, 40.3736N, 42.5366E. –FFR 1945, Aras River at Köprüçay, 39.9699N, 41.8883E. –FFR 1821, Stream Digor at Digor, Aras drainage, 40.3731N, 43.4271E. Not preserved, Aras River 4 km west of Donandı, 40.1097N, 43.4349E. Not preserved, Lake Balık at Tanyolu, Aras drainage, 39.7451N, 43.5385E. –FFR 1816, Stream Sarısu West of Doğubeyazıt, Aras drainage, 39.5409N, 44.0044E.
Widespread in tributaries of Kura and Aras rivers.
Blue Aras scraper* / Mavi Aras sirazı*.
Not evaluated (NE).
FFR 1835, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
Capoeta kaput was found only in B-20 canal. The species was described from Aras River in Armenia (
Prussian carp / Havuz balığı.
Not evaluated (NE).
Not preserved, Kura River at Yalnızçam, 41.0709N, 42.4844E. –FFR 2217, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E. –FFR 2216, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E.
The species was found in Lake Çıldır and streams Gaziler and Yalnızçam. It was also reported from Lake Aktaş and Stream Sarısu (Çiçek and Sungur Birecikligil 2016).
Common carp / Sazan.
Vulnerable (VU).
FFR 2749, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E. –FFR 2751, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E. Not preserved, Lake Balık at Tanyolu, Aras drainage, 39.7451N, 43.5385E. –FFR 2744, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
The species was found in stream Gaziler, B-20 canal and Lake Çıldır.
Both native and introduced Cyprinus carpio inhabit Lake Çıldır. The native common carp is very distinct due to its slenderer body and yellow general body color (Fig.
Bulatmai barbel / Hazar tilkiburunu*.
Vulnerable (VU).
FFR 355, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E.
The species was found only in stream Gaziler.
Mursa / Murzu.
Least concern (LC).
FFR 334, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E.
The species was found only in stream Gaziler.
European bitterling / Acıbalık.
Least concern (LC).
FFR 3524, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
The species is recorded in B-20 canal located very close to the border with Armenia. Rhodeus amarus was recorded from Lake Urmia and Caspian Sea basins in Iran (
Artvin gudgeon* / Artvin Derekayası*.
Not evaluated (NE).
FFR 5923, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
The species has been known to occur in Çoruh River and has not been recorded in any another place, including Kura and Aras river drainages, despite intensive field work. However, it has recently been declared that G. artvinicus translocated to the Caspian Sea basin and occurs in Armenia, Azerbaijan and Georgia (
Gobiidae and Gobionidae species collected in the area, a, Neogobius fluviatilis from B-20 canal, Aras; b, Ponticola cyrius from Kura River at Yalnızçam; c, Pseudorasbora parva from Lake Aktaş, Kura; d, Romanogobio macropterus from Kura River at Yalnızçam; e, Romanogobio macropterus from Kura River at Yalnızçam.
Stone moroko / Çakıl balığı.
Least concern (LC).
Not preserved, Lake Aktaş at Kenarbel, Kura drainage, 41.1917N, 43.1737E.
The species was recorded only from Lake Aktaş. It was also recorded in Lake Çıldır (Çiçek and Sungur Birecikligil 2016).
Kura gudgeon / Kura Derekayası*.
Least concern (LC).
FFR 5977, Kura River at Yalnızçam, 41.0709N, 42.4844E. –FFR 5922, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. Not preserved, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 5969, Aras River at Köprüçay, 39.9699N, 41.8883E.
Kura and Aras River drainages in northeastern Turkey.
The type locality of the species is the Caucasus. The Kura population was identified as R. macropterus. However, we observed some morphological differences between Kura and Aras populations obtained in this study. The Aras population has a slenderer body and caudal peduncle than R. macropterus from Kura (Fig.
Blackbrow bream / Kura akçapağı*.
Least concern (LC).
FFR 1172, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 1167, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E. –FFR 1170, Stream Doğruyol at Doğruyol, Aras drainage, 41.0620N, 43.3450E. –FFR 1196, Aras River at Köprüçay, 39.9699N, 41.8883E. Not preserved, Aras River 4 km west of Donandı, 40.1097N, 43.4349E. –FFR 1165, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E.
Kura and Aras River drainages in northeastern Turkey.
Both molecular (
Some Leuciscidae species collected in the area, a, Acanthobrama microlepis from Kura River at Yalnızçam; b, Blicca bjoerkna from B-20 canal, Aras; c, Leuciscus aspius from Lake Çıldır, Aras; d, Squalius agdamicus from Kura River at Yalnızçam; e, Squalius turcicus, from stream Fehmiharabesi, Aras.
Kura spirlin* / Kura noktalı incisi*.
Least concern (LC).
FFR 1013, Stream Karaman at Aşıkzülal, Kura drainage, 41.4413N, 42.6591E. Not preserved, Stream Çöt Suyu South of Çatköy, Kura drainage, 41.2998N, 42.7087E. –FFR 1089, Kura River at Yalnızçam, 41.0709N, 42.4844E. –FFR 1091, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 1047, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E. –FFR 1085, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E. Not preserved, Stream Fehmiharabesi at Akçalar, Aras drainage, 40.7723N, 43.2959E. –FFR 1015, Stream Maksutçuk west of Dikme, Aras drainage, 40.5160N, 42.9510E. –FFR 1019, Steam Susuz at Susuz, Aras drainage, 40.7806N, 43.1411E. Not preserved, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 1088, Stream Kekeç at Selim, Aras drainage, 40.4715N, 42.8005E. –FFR 1086, Stream Boyalı at Boyalı, Aras drainage, 40.4478N, 42.5833E. –FFR 1082, Stream Kızılçubuk at Kızılçubuk, Aras drainage, 40.3736N, 42.5366E. –FFR 7012, Aras River at Köprüçay, 39.9699N, 41.8883E. –FFR 1093, Stream Digor at Digor, Aras drainage, 40.3731N, 43.4271E. –FFR 7020, Aras River 4 km west of Donandı, 40.1097N, 43.4349E. –FFR 1087, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E. –FFR 7011, Stream Aktarla at Aktarla, a southern drainage of Lake Balık, 39.7373N, 43.5815E. –FFR 1090, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
Widespread in tributaries of Kura-Aras rivers.
Some Leuciscidae species collected in the area, a, Alburnoides eichwaldii from Kura River at Yalnızçam; b, Alburnus filippi from Kura River at Yalnızçam; c, Alburnus hohenackeri from B-20 canal, Aras; d, Chondrostoma cyri from stream Kars, Aras; e, Leucalburnus satunini from Kura River at Yalnızçam.
Kura bleak / Kura incisi*.
Least concern (LC).
FFR 4687, Kura River at Yalnızçam, 41.0709N, 42.4844E. –FFR 942, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 943, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E. –FFR 936, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E. –FFR 4688, Stream Büyük Çayır at Arpaçay, Aras drainage, 40.8431N, 43.3222E. –FFR 4685, Stream Fehmiharabesi at Akçalar, Aras drainage, 40.7723N, 43.2959E. –FFR 872, Steam Susuz at Susuz, Aras drainage, 40.7806N, 43.1411E. –FFR 4686, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR, 899, Stream Maksutçuk west of Dikme, Aras drainage, 40.5160N, 42.9510E. –FFR 940, Stream Kekeç at Selim, Aras drainage, 40.4715N, 42.8005E. –FFR 939, Stream Boyalı at Boyalı, Aras drainage, 40.4478N, 42.5833E. –FFR 4654, Aras River at Köprüçay, 39.9699N, 41.8883E. –FFR 948, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E. –FFR 947, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E. –FFR 820, Stream Doğruyol at Doğruyol, Aras drainage, 41.0620N, 43.3450E.
Widespread in tributaries of Kura-Aras rivers.
Caspian bleak / Hazar Denizi incisi*.
Least concern (LC).
FFR 4699, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
It was recorded from B-20 canal, Aras River.
The occurrence of the species in the region has been reported by earlier studies based on estimates (
White bream / Tahta balığı.
Least concern (LC).
FFR 2425, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
It was first recorded from B-20 canal, Aras River.
Colchic nase / Kura kababurunu*.
Least concern (LC).
FFR 2040, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 2041, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E. –FFR 2030, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 2042, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
Widespread in tributaries of Kura-Aras rivers.
White Kura bleak / Satunin incisi.
Least concern (LC).
FFR 2467, Kura River at Yalnızçam, 41.0709N, 42.4844E. –FFR 2464, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 2465, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E.
Known from upper Kura River drainage. Endemic to the area.
Asp / Kocaağız balığı.
Least concern (LC).
FFR 2441, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E.
Aras River drainage. Recorded from in Lake Çıldır.
Agdam dace / Agdam tatlısu kefali*.
Not evaluated (NE).
FFR 638, Stream Açıkyazı at Kazlıköy, Kura drainage, 41.1443N, 42.5908E. –FFR 687, Kura River at Yalnızçam, 41.0709N, 42.4844E. –FFR 684, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 684, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E.
Kura River drainage in northeast Anatolia. The species has been known from lower Kura. Recently, it was recorded from Kura River in Turkey (
Kura chub* / Kura tatlı su kefali*.
Least concern (LC).
FFR 692, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E. Not preserved, Stream Fehmiharabesi at Akçalar, Aras drainage, 40.7723N, 43.2959E. Not preserved, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 681, Stream Kekeç at Selim, Aras drainage, 40.4715N, 42.8005E. –FFR 689, Stream Boyalı at Boyalı, Aras drainage, 40.4478N, 42.5833E. –FFR 634, Stream Kars at Çatak, Aras drainage, 40.4016N, 42.6783E. –FFR 6273, Aras River at Köprüçay, 39.9699N, 41.8883E. –FFR 690, Stream Digor at Digor, Aras drainage, 40.3731N, 43.4271E. not preserved, Lake Balık at Tanyolu, Aras drainage, 39.7451N, 43.5385E. –FFR 683, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
Widespread in Aras River drainage.
Caspian spined loach* / Hazar taşemeni*.
Not evaluated (NE).
Not preserved, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 5500, Stream Kekeç at Selim, Aras drainage, 40.4715N, 42.8005E. –FFR 5549, Aras River at Köprüçay, 39.9699N, 41.8883E.
Recently recorded from streams Selim and Kars, Aras River drainage (
Golden Spined Loach / Altın dikenli çöpçü balığı*.
Least concern (LC).
FFR 5514, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E. –FFR 5513, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E. –FFR 5559, Stream Fehmiharabesi at Akçalar, Aras drainage, 40.7723N, 43.2959E.
The species is known from Aras River drainage.
Kura loach* / Aras çöpçü balığı*.
Least concern (LC).
FFR 1460, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E. –FFR 15551, Stream Büyük Çayır at Arpaçay, Aras drainage, 40.8431N, 43.3222E. –FFR 15549, Stream Fehmiharabesi at Akçalar, Aras drainage, 40.7723N, 43.2959E. –FFR 1350, Stream Kekeç at Selim, Aras drainage, 40.4715N, 42.8005E. –FFR 1382, Stream Maksutçuk west of Dikme, Aras drainage, 40.5160N, 42.9510E. –FFR 1427, Stream Digor at Digor, Aras drainage, 40.3731N, 43.4271E. –FFR 1422, Stream Gaziler, 2 km west of Donandı, Aras drainage, 40.1097N, 43.4349E.
The species is widespread in Kura and Aras river drainages.
Göle loach / Göle çöpçü balığı*.
Least concern (LC).
FFR 1426, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E.
The species is endemic to the upper reaches of the Kura River drainage.
Aras loach* / Aras çöpçü balığı*.
Not evaluated (NE).
FFR 3621, Stream Doğruyol at Doğruyol, Aras drainage, 41.0620N, 43.3450E. –FFR 15550, Stream Büyük Çayır at Arpaçay, Aras drainage, 40.8431N, 43.3222E. –FFR 15548, Stream Fehmiharabesi at Akçalar, Aras drainage, 40.7723N, 43.2959E. Not preserved, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 1352, Stream Kekeç at Selim, Aras drainage, 40.4715N, 42.8005E. –FFR 3622, Stream Boyalı at Boyalı, Aras drainage, 40.4478N, 42.5833E. –FFR 3623, Stream Kızılçubuk at Kızılçubuk, Aras drainage, 40.3736N, 42.5366E. –FFR 1597, Stream Digor at Digor, Aras drainage, 40.3731N, 43.4271E.
Aras River drainages in northeastern Anatolia. The species recently described from stream Bozkuş (40°37'03.7"N, 42°47'04.9"E), a drainage of Aras River (Çiçek et al. 2018). Here it was recorded from eight additional localities (streams Doğruyol, Kekeç, Kars, Fehmiharabesi, Boyalı, Digor, Kızılçubuk and Büyük Çayır) in tributaries of Aras River (Table
Çiçek et al. (2018) described Oxynoemacheilus veyseli in honor of Veysel Çiçek. The epithet stands for two persons as father and son of the first author. In Article 31.1.2. of the International Code for Zoological Nomenclature (
Wels catfish / Yayın.
Least concern (LC).
Not preserved, Stream Kars at campus of Kafkas University, Aras drainage, 40.5814N, 43.0591E. –FFR 2704, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
The species is found from the stream Kars in this study.
Rainbow trout / Gökkuşağı alabalığı.
Not evaluated (NE).
Not preserved, Lake Çıldır, Aras drainage, 41.0449N, 43.2804E.
Caspian trout / Hazar alası*.
Not evaluated (NE).
Not preserved, Stream Çöt Suyu South of Çatköy, Kura drainage, 41.2998N, 42.7087E. –FFR 1129, Stream Kınavur at Çataldere, Kura drainage, 41.1976N, 42.6135E. –FFR 3164, Stream Toros, 4 km south of Çimenkaya, Kura drainage, 41.1115N, 42.4468E. –FFR 3135, Stream Çakır, 3 km south of Çakıldere, Kura drainage, 40.9669N, 42.5861E.
Kura River drainage.
Aras trout / Aras alası*.
FFR 3122, Stream Tahtakaya at Kırkpınar, Aras drainage, 40.8539N, 43.0188E. –FFR 3114, Stream Kayalık at Kayalık, Aras drainage, 40.8201N, 43.1268E. –FFR 3144, Stream İncilipınar at İncilipınar, Aras drainage, 40.8211N, 43.0751E.
Aras River drainage.
The species is morphologically most similar to S. caspius. However, it seems that there are some significant differences between Kura and Aras populations. A detailed morphological examination is needed to clear the taxonomic position of salmonids in Aras drainage.
Caucasian trout* / Kafkas alası*.
FFR 3229, Stream Keklik 6 km southeast of Sarıkamış, Aras drainage, 40.2955N, 42.6565E.
Aras River drainage.
The species is morphologically similar to S. ciscaucasicus, however, more comparison materials from upper Aras and Keyranchay River (its type locality) are needed to clear the taxonomic position of Aras populations. For the first observation by limited samples identified here as Salmo cf. ciscaucasicus differ from S. caspius from Kura drainages by having a brownish general body color (vs. grayish), irregular black and red spots (vs. circular). On the other hand, the samples we obtained have grayish general body color, numerous black spots on the body, irregularly shaped, small to medium, maxilla reaching slightly beyond the eye, adipose-fin of moderate size, not reaching caudal-fin base. These features overlap with the original description of
Monkey goby / Tatlısu kayası.
Least concern (LC).
FFR 2636, B-20 canal at Aralık, Aras drainage, 39.8936N, 44.5256E.
The species native for the Caspian Sea basin (
Kura goby / Kura kayası*.
Least concern (LC).
FFR 2620, Stream Karaman at Aşıkzülal, Kura drainage, 41.4413N, 42.6591E. –FFR 2635, Stream Ölçek at Ölçek, Kura drainage, 41.1340N, 42.8560E.
Kura River drainage.
Among the species listed above, 26 are native and two of them (Oxynoemacheilus cyri and Leucalburnus satunini) are also endemic to the upper Kura River. L. satunini was not included endemic fish species of Turkey by Çiçek et al. (2018). However, the species has never been reported from Armenia or adjacent countries. Even though these species are restricted to the Turkish part of Kura River, the population density detected was high. Probably, this was due to the limited human population in nearby rural areas, hence the negative effect of anthropogenic pollutants. In addition, hydro power plants could not be installed in the area since the geographical structure of the region is a flat plateau. Both species are already assessed as “Least concern” by IUCN.
Carassius gibelio, Cyprinus carpio, Pseudorasbora parva, Gobio artvinicus and Oncorhynchus mykiss are exotic species of upper Kura and Aras drainages. Even though P. parva and C. gibelio are not very widespread throughout the area, they have high invasiveness potential. Therefore, caution is necessary to prevent the spread of these species.
Alburnus hohenackeri, Blicca bjoerkna, Gobio artvinicus, Neogobius fluviatilis and Rhodeus amarus were recorded for the first time in the upper reaches of Aras River in Turkey by the observed samples.
Introduced salmonid, Coregenus albula, was recorded in Lake Aktaş, which is a transboundary lake shared between Turkey and Georgia (
There are two species categorized under the red list of IUCN; both were assessed as Vulnerable. The first is native populations of Cyprinus carpio, which were observed only in Lake Çıldır in the area. The population density of the species is declining due to overfishing and destruction of breeding and feeding areas (
There are nine species not evaluated against IUCN criteria. Among these: Capoeta kaput, C. saniae and Oxynoemacheilus veyselorum, were described after 2017; therefore they have not yet been assessed by IUCN. C. kaput was found only from B-20 canal in this study, and from two localities by (
We would like to thank Mehmet Kuyumcu (Rize) and Şeyda Alınca (Iğdır) for their help during the fieldwork. Many thanks to Jörg Freyhof (Berlin) and Baran Yoğurtçuoğlu (Ankara) for their remarkable comments on the earlier version of this manuscript, and Lucas Nolan (Dublin) for improving its language.
Fish collections were approved and granted by the Ministry of Food, Agriculture and Livestock, General Directorate of Fisheries and Aquaculture (codes for the protocols: 67852565-140.03.03-E.4052273 and 76000869-804.01-00000919222). All applicable international, national or institutional guidelines for the care and use of animals were followed.