94 results on '"Davut Turan"'
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2. A new species of trout from the Köprüçay River, a drainage of Mediterranean Sea, Türkiye (Salmoniformes, Salmonidae)
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Fahrettin Küçük, Gökhan Kalaycı, Salim Serkan Güçlü, Münevver Oral, and Davut Turan
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Biology (General) ,QH301-705.5 - Abstract
Salmo ekmekciae, new species, is described from the Köprüçay River, a drainage of Mediterranean Sea. It is distinguished from Salmo species in adjacent water by having 9–10 parr marks on flank; 11–13 scale rows between end of base of adipose-fin and lateral line; 22–24 gill rakers on first gill arch; a shorter distance between adipose-fin and caudal-fin base; a slenderer caudal peduncle; and a slenderer body at adipose-fin origin. According to the Bayesian, and maximum likelihood analyses, Salmo ekmekciae cyt b gene resulted in coherent trees supported by high bootstrap values.
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- 2024
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3. Description of a new species of Phoxinus from the Ergene River (Aegean Sea Basin) in Türkiye (Actinopterygii, Leuciscidae)
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Esra Bayçelebi, İsmail Aksu, and Davut Turan
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Biology (General) ,QH301-705.5 - Abstract
Phoxinus radeki, a new species, is described from the Ergene River (Aegean Sea Basin). It is distinguished from Phoxinus species in Türkiye and the adjacent area by having the scales of the breast, scaled but separated unscaled area anteriorly, short dark rectangular blotches along the lateral line between the lateral line and belly yellowish in both males and females, body depth dorsal fin origin 16–21% SL, caudal peduncle depth 8–10% SL. Additionally, molecular results demonstrated that the new species differed from its closest congeners with a mean genetic distance value of 3.08% (min. 2.82–max. 3.29) and moderately support values in cytochrome b (Cyt b) gene partial sequences (1064 bp.). Further, the species delimitation analysis identified the new species as a single MOTU independent of other Phoxinus species.
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- 2024
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4. The trouts of the Marmara and Aegean Sea drainages in Türkiye, with the description of a new species (Teleostei, Salmonidae)
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Davut Turan, Esra Bayçelebi, Sadi Aksu, and Münevver Oral
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Biology (General) ,QH301-705.5 - Abstract
The taxonomic status of native trout species of the Marmara and Aegean Sea drainages is evaluated and three species, Salmo duhani, S. coruhensis and S. brunoi sp. nov., are recognized. Salmo brunoi, a new species, is described from the Nilüfer River, a tributary of the Susurluk River. It is distinguished by a general brownish body color in life; few black spots (fewer than 60) on the body, generally scattered on the back and the upper part of the flank, rarely in the median part; few (fewer than 40) and small (smaller than pupil) red spots on the body, scattered on the median part and lower half of the flank; a number of black and red spots not increasing with size in both sexes; a long adipose fin (adipose-fin height 8–9% SL); a short distance between adipose-fin and caudal-fin (12–14% SL); and a short anal fin (anal-fin height 12–15% SL). Salmo brunoi sp. nov. is separated from the rest of the Marmara and Aegean trouts of Anatolia based on genome-wide distributed 187.385 unlinked SNP markers. According to the best of the authors’ knowledge, whole genome data is used for the first time here to characterize a new species of trout.
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- 2024
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5. Two new Oxynoemacheilus species in western Anatolia (Teleostei, Nemacheilidae)
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Davut Turan, Sadi Aksu, and Gökhan Kalayci
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Biology (General) ,QH301-705.5 - Abstract
Oxynoemacheilus sakaryaensis sp. nov., is restricted to the Sakarya River basin, and O. melenicus sp. nov., is distributed in both the Sakarya River and Büyükmelen Stream. Oxynoemacheilus sakaryaensis is distinguished by having a flank plain or with numerous irregularly shaped pale brownish bars and a caudal-peduncle depth 2.8–3.2 times in its length. Oxynoemacheilus melenicus is distinguished by having a flank with 10–13 irregular shaped brownish bars or blotches and the caudal peduncle depth 1.9–2.8 times in its length. Oxynoemacheilus banarescui, O. samanticus, O. simavicus, O. fatsaensis, O. sakaryaensis, and O. melenicus are valid, which belong to the O. bergianus species group. O. melenicus and O. sakaryaensis were differentiated from all other Oxynoemacheilus species in western Anatolia by two diagnostic and unique nucleotide substitution sites in the COI barcoding region. Also, species delineation tests (ABGD, GMYC, ASAP) and phylogenetic analyses support the validity of O. melenicus and O. sakaryaensis as distinct species.
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- 2023
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6. DNA barcoding of the genus Alburnoides Jeitteles, 1861 (Actinopterygii, Cyprinidae) from Anatolia, Turkey
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Halim Canoglu, Ismail Aksu, Davut Turan, and Yusuf Bektas
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Biology (General) ,QH301-705.5 - Abstract
The present study investigated the ability of DNA barcoding to reliably identify the endemic freshwater species in Turkey, known as biodiversity hotspots. The barcode region (652 bp) of the mitochondrial cytochrome c oxidase subunit I (COI) was used to barcode 153 individuals from 13 morphologically identified species of the genus Alburnoides. Based on the Kimura two-parameter (K2P) evolution model, the average interspecific distance (0.0595) was 31-fold higher than the average intraspecific distance (0.0019). There was a clear-cut barcode gap (0.0158–0.0187) between maximum intraspecific distance (A. tzanevi and A. velioglui) and minimum nearest-neighbour distance (A. freyhofi and A. kurui) for Anatolian Alburnoides species and a common genetic threshold of 0.0158 sequence divergence was defined for species delimitation. The multiple species delimitation methods (ABGD, ASAP, GMYC and bPTP) revealed a total of 11 molecular operational taxonomic units (MOTUs) for 13 morphospecies. Neighbour-joining (NJ), Maximum Likelihood (ML) and Bayesian Inference (BI) tree analysis indicated that all haplotypes were clustered into two major clades, which corresponded to eleven Alburnoides species clusters, with strong bootstrap support. Furthermore, all the specimens clustered in concurrence with the morpho-taxonomic status of the species, except for two species (A. coskuncelebii and A. emineae) that were morphologically differentiated, but showed overlap in variation for COI-based DNA barcode data with other species. Overall, present results identified that COI-based DNA barcoding is effective for species identification and cataloguing of genus Alburnoides in Turkey.
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- 2023
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7. Taxonomic review of the Chondrostoma (Teleostei, Leuciscidae) species from inland waters of Turkey: an integrative approach
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Fahretti̇n Küçük, Yılmaz Çi̇ftçi, Sali̇m Serkan Güçlü, Ayşe Gül Mutlu, and Davut Turan
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Biology (General) ,QH301-705.5 - Abstract
The genus Chondrostoma (Leuciscidae: Leuciscinae), composed of small to medium-sized fish with a scraper feeding characteristic, is distributed in the West and Middle East, Caucasus, Europe and Northern Mediterranean drainages. This genus spreads across Anatolia and Thrace, with the exception of Göksu and Eşen rivers in Turkey’s Mediterranean basin. It is also difficult to understand the systematics of Chondrostoma, which is complicated morphologically. Therefore, in this study, an identification key was made by evaluating external morphology, osteology (some jaw bones and 5th ceratobrachial) and molecular features together. A total of 13 valid species have been so far recorded from Turkish inland waters, among which are C. beysehirense, C. ceyhanensis, C. colchicum, C. cyri, C. holmwoodii, C. kinzelbachi, C. meandrense, C. nasus, C. regium, C. smyrnae, C. toros, C. turnai and C. vardarense. Our molecular data showed that C. angorense (Kızılırmak and Sakarya rivers) is a synonym of C. colchicum (Çoruh and Yeşilırmak rivers). In addition, C. angorense was morphologically similar to C. colchicum. Therefore, we explored the systematic position of C. vardarense (from Meriç River) and C. nasus (from Simav River) in this study.
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- 2023
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8. Paracapoeta, a new genus of the Cyprinidae from Mesopotamia, Cilicia and Levant (Teleostei, Cypriniformes)
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Davut Turan, Cüneyt Kaya, İsmail Aksu, and Yusuf Bektaş
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Biology (General) ,QH301-705.5 - Abstract
The molecular and morphological studies carried out within the scope of this study revealed that the scrapers, known as the Mesopotamian group, belong to a different genus. The Paracapoeta gen. nov., from the Mesopotomia and Levant, is distinguished from Capoeta and Luciobarbus species by the presence of a strong ligament between the base of the last simple and the first branched rays of the dorsal-fin (vs. no or a very weak ligament). The Paracapoeta further differs from Capoeta by the last simple dorsal-fin ray strongly ossified in adult specimens (more than 75%, vs. less than 75%). The Paracapoeta further differs from Luciobarbus by the lower lip with horny layer (vs. fleshy lips). The molecular phylogeny based on the combined dataset (COI + Cytb, 1312 bp.) showed that the genus Paracapoeta was recovered from the other groups in the subfamily Barbinae with high bootstrap and posterior probability values (BP: 94%, PP: 0.96). Also, Paracapoeta and Capoeta are well differentiated by an average genetic distance of 8.02±0.78%. The morphological and molecular findings have largely overlapped each other. Besides, Capoeta turani is treated as a synonym of Capoeta erhani.
- Published
- 2022
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9. Contribution to the trout of Euphrates River, with description of a new species, and range extension of Salmo munzuricus (Salmoniformes, Salmonidae)
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Davut Turan, İsmail Aksu, Münevver Oral, Cüneyt Kaya, and Esra Bayçelebi
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Biology (General) ,QH301-705.5 - Abstract
In an effort to reveal the Euphrates trout taxonomy, the Karasu River, which is one of the eastern drainages of the river, was investigated and three independent populations were identified. Result revealed that two populations belonged to Salmo munzuricus, which was known only in Munzur River, while the other population belonged to an unnamed species. Salmo baliki, a new species, is described from the Murat River, a drainage of Euphrates River. It differs from Salmo species in adjacent water by the combination of the following characters: a grayish body; commonly one, rarely two pale black spots behind eye and on cheek; two to seven black spots on opercle; a few black spots on back and upper part of flank, missing on predorsal area; few to numerous large irregular-shaped red spots in median, upper and lower part of flank, surrounded by a large irregular-shaped white ring; the number of black and red spots not increasing in parallel with size; maxilla short and narrow; adipose-fin medium size, no or rarely one or two red spot its posterior edge; 107–118 lateral line scales; 24–28 scales rows between dorsal-in origin and lateral line; 18–22 scale rows between lateral line and anal–fin origin; maxilla length 7.7–9.1% SL in males, 8.2–9.6 in females. Finally, the genetic study of the Cyt b mitochondrial gene confirmed the morphological data, suggesting the separation of S. baliki from other Salmo species.
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- 2021
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10. Chondrostoma smyrnae, a new nase from the Tahtalı reservoir drainage in the Aegean Sea basin (Teleostei, Leuciscidae)
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Fahrettin Küçük, Yılmaz Çiftçi, Salim Serkan Güçlü, and Davut Turan
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Biology (General) ,QH301-705.5 - Abstract
Chondrostoma smyrnae, a new species, from the Tahtalı reservoir drainage is distinguished by having a slightly arched lower jaw with a well-developed keratinised edge, a deep and cylindric body, a complete lateral line with 47–52+1 total scales, 8–9 scale rows between the lateral line and the dorsal-fin origin, 4 scale rows between the lateral line and the pelvic fin-origin, and 19–23 gill rakers on the first gill arch. Moreover, molecular analyses using full cyt b (1141 bp) and partial coI (652 bp) sequences of the mitochondrial genome from specimens of the new species, C. smyrnae and specimens belonging to other Chondrostoma species from central and western Anatolia demonstrated that the C. smyrnae is easily differentiated by their high pairwise genetic distances of cyt b and coI data set (>2.20 and 1.03%, respectively) and by their position in the phylogenetic trees obtained through Maximum Likelihood (ML) methodology.
- Published
- 2021
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11. Taxonomic assessment and distribution of fishes in upper Kura and Aras river drainages
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Cüneyt Kaya, Esra Bayçelebi, and Davut Turan
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Biology (General) ,QH301-705.5 - Abstract
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.
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- 2020
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12. Salmo kottelati, a new species of trout from Alakır Stream, draining to the Mediterranean in southern Anatolia, Turkey (Teleostei, Salmonidae)
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Davut Turan, Esra Doğan, Cüneyt Kaya, and Mahir Kanyılmaz
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Zoology ,QL1-991 - Abstract
Salmo kottelati sp. n., is described from Alakır Stream (Mediterranean basin) in Turkey. It is distinguished from other Anatolian Salmo species by a combination of the following characters (none unique to the species): general body colour greenish to silvery in life; 7–9 parr marks along lateral line; four dark bands on flank absent in both sexes; black ocellated spots few, present only on upper part of flank in individuals smaller than 160 mm SL but in larger both males and females black spots numerous and located on back and middle and upper part of flank; red spots few to numerous, scattered on median, and half of lower and upper part of flank; head long (length 29–33% SL in males, 26–32 in females); mouth large (length of mouth gape 13–19% SL in males, 12–15 in females); maxilla long (length 10–13% SL in males, 8–12 in females); 105–113 lateral line scales; 24–29 scale rows between lateral line and dorsal-fin origin, 17–19 scale rows between lateral line and anal-fin origin; 13–15 scales between lateral line and adipose-fin insertion.
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- 2014
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13. Alburnoides manyasensis (Actinopterygii, Cyprinidae), a new species of cyprinid fish from Manyas Lake basin, Turkey
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Davut Turan, Cüneyt Kaya, F. Güler Ekmekçi, and S. Serkan Güçlü
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Zoology ,QL1-991 - Abstract
Alburnoides manyasensis, sp. n., is described from the Koca Stream (Lake Manyas drainage, Marmara Sea basin) in Anatolia. It is distinguished from all species of Alburnoides in Turkey and adjacent regions, Alburnoides tzanevi (Rezovska [Rezve], Istranca and Terkos streams in the western Black Sea drainage), Alburnoides cf. smyrnae (Banaz Stream, a drainage of Büyük Menderes River, Aegean Sea basin), Alburnoides fasciatus (streams and rivers in the eastern Black Sea drainage) and Alburnoides eichwaldii (Kura and Aras rivers [a drainage of Kura River], Caspian Sea basin) by a combination of the following characters (none unique to the species): marked hump at nape, especially in specimens larger than 60 mm SL; partly developed ventral keel between pelvic fin and anal fin, scaleless 1/2 to 2/3 its length; body depth at dorsal-fin origin 29−32% SL; caudal peduncle depth 11−12% SL; 45–52+ 2–3 lateral-line scales; 9–12 scale rows between lateral line and dorsal-fin origin; 4–5 scale rows between lateral line and anal-fin origin, 10½–12½ branched anal-fin rays; 40–42 total vertebrae.
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- 2013
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14. Image Analysis Based Fish Tail Beat Frequency Estimation for Fishway Efficiency.
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Yasin Yildirym, B. Ugur Töreyin, Serhat Küçükali, Bulent Verep, Davut Turan, and Ahmet Alp
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- 2018
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15. Phoxinus abanticus , a new species from the Lake Abant drainage in Türkiye (Teleostei: Leuciscidae)
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Davut Turan, Esra Bayçelebi, Müfit Özuluğ, Özcan Gaygusuz, and İsmail Aksu
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Aquatic Science ,Ecology, Evolution, Behavior and Systematics - Published
- 2023
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16. <scp>DNA</scp> barcoding and species delimitation of the genus Oxynoemacheilus (Teleostei: Nemacheilidae) in Anatolia
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Yusuf Bektas, İsmail Aksu, Cüneyt Kaya, Esra Bayçelebi, and Davut Turan
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Cypriniformes ,Turkey ,Animals ,DNA Barcoding, Taxonomic ,Bayes Theorem ,DNA ,Aquatic Science ,Phylogeny ,Ecology, Evolution, Behavior and Systematics - Abstract
The DNA barcoding approach was used for the determination of evolutionary relationships and species delimitation of the genus Oxynoemacheilus (Teleostei: Nemacheilidae). The COI barcode region (615 bp amplicon) was used to barcode 444 individuals from 64 morphologically identified species in the genus Oxynoemacheilus and 189 haplotypes were identified. The average of the interspecific p distance (9.59%) was about 21-fold higher than the average intraspecific distance (0.44%). A general genetic threshold of 1.46% sequence divergence was defined for species delimitation. The multiple species delimitation methods (BCM, GMYC, bPTP and TCS) revealed a total of 62 molecular operational taxonomic units for 64 morphospecies with a new loach species from the BuyukMelen River. Neighbour-joining, maximum likelihood and Bayesian inference analyses indicated that all haplotypes were clustered into 62 clades, which corresponded to Oxynoemacheilus species, with strong bootstrap support (≥95%). Furthermore, all samples grouped in concurrence with the taxonomic status of the species except for species groups (O. germencicus-O. cinicus-O. mesudae and O. leontinae-O. namiri) that were showed intraspecific overlap in genetic diversity for COI-based barcodes. In conclusion, our analyses indicate that COI-based barcodes provide reliable species discrimination. Therefore, we currently recommend COI barcodes as the suitable barcode for genus Oxynoemacheilus.
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- 2022
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17. Göksu Irmağı (Türkiye) Güncel Balık Faunası ve Ekolojik Durumunun Değerlendirilmesi
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İskender Gülle, Salim Serkan Güçlü, Fahrettin Küçük, and Davut Turan
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General Medicine - Abstract
Orta Toroslar karst alanlardan beslenen Göksu Irmağı, Doğu Akdeniz Havzası’nın Akdeniz’e dökülen en büyük akarsuyudur. Bu çalışmada, 2004-2017 yılları arasında farklı tarihlerde yapılan örneklem, gözlem ve literatür ışığında; Göksu Irmağı balık faunasının güncel taksonomik durumu, dağılım alanları, IUCN koruma ölçütleri ve akarsu bölgelerinin ekolojik yapısı değerlendirilmiştir. Çalışmamızda akarsuyun acısu bölgesi hariç 8 familyadan; 6’sı endemik olmak üzere 7’si yerli, 3’ü egzotik ve 1’i göçücü (diadrom) toplam 11 takson belirlenmiştir. Akarsuyun yukarı havzalarındaki bu yüksek endemizm oranı oldukça dikkat çekicidir. Irmağın ana kollarını oluşturan, yukarı-orta havza drenaj alanı içerisindeki, Göksu Çayı ve Ermenek Çayı (Gevne Çayı)’nın üzerinde gerçekleşen karayolu, köprü, baraj ve HES yapımı gibi fiziki tahribatların akarsu ekosisteminin doğal yapısını bozduğu, akarsu yatağında kısmi kurumalar ve habitat parçalanmasına neden olduğu gözlemlenmiştir. Bu baskılar sonucunda, Göksu Çayı ve Gevne Çayı’nın baskın balık türü olan endemik Toros sirazı (Capoeta caelestes) popülasyon yoğunluğunun önemli ölçüde azaldığı tespit edilmiştir. Aynı olumsuz etkenler nedeniyle Gevne Çayı’nın Beyreli Köyü (Hadim-Konya) ile Dumlugöze (Sarıveliler-Karaman) arasında kalan yaklaşık 45 km’lik üst kesiminde 2004-2009 yılları arsında nadiren örneklenen Kırmızıbenekli Alabalık (Salmo opimus) popülasyonunun yok olduğu belirlenmiştir.
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- 2021
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18. Chondrostoma smyrnae, a new nase from the Tahtalı reservoir drainage in the Aegean Sea basin (Teleostei, Leuciscidae)
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Yılmaz Çiftci, Fahrettin Küçük, Davut Turan, Salim Serkan Güçlü, RTEÜ, Su Ürünleri Fakültesi, Su Ürünleri Temel Bilimler Bölümü, and Turan, Davut
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0106 biological sciences ,0301 basic medicine ,QH301-705.5 ,Cytochrome b ,Cyprinidae ,Chondrostoma ,Cytochrome oxidase I ,Structural basin ,010603 evolutionary biology ,01 natural sciences ,03 medical and health sciences ,taxonomy ,Western Anatolia ,Animalia ,Drainage ,Biology (General) ,Chordata ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Hydrology ,Teleostei ,biology ,Actinopterygii ,Freshwater fish ,biology.organism_classification ,Cypriniformes ,030104 developmental biology ,freshwater fish - Abstract
Chondrostoma smyrnae, a new species, from the Tahtalı reservoir drainage is distinguished by having a slightly arched lower jaw with a well-developed keratinised edge, a deep and cylindric body, a complete lateral line with 47–52+1 total scales, 8–9 scale rows between the lateral line and the dorsal-fin origin, 4 scale rows between the lateral line and the pelvic fin-origin, and 19–23 gill rakers on the first gill arch. Moreover, molecular analyses using full cyt b (1141 bp) and partial coI (652 bp) sequences of the mitochondrial genome from specimens of the new species, C. smyrnae and specimens belonging to other Chondrostoma species from central and western Anatolia demonstrated that the C. smyrnae is easily differentiated by their high pairwise genetic distances of cyt b and coI data set (>2.20 and 1.03%, respectively) and by their position in the phylogenetic trees obtained through Maximum Likelihood (ML) methodology.
- Published
- 2021
19. Description of a new species Squalius from Lake Hazar and Upper Tigris River drainages in Anatolia (Teleostei: Leuciscidae)
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Davut TURAN
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Fen ,chub ,freshwater fish ,morphology ,taxonomy ,Turkey ,Science ,General Medicine ,morfoloji ,taksonomi ,tatlısu balıkları ,tatlısu kefali ,Türkiye - Abstract
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., 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.
- Published
- 2022
20. Current Status Freshwater Fishes of Nilüfer Stream (North-western Turkey)
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Sadi Aksu, Özgür Emiroğlu, and Doç.dr. Davut Turan
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Fishery ,Current (stream) ,Geography - Published
- 2020
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21. The Current Fish Fauna of the Hopa Stream
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Davut Turan and Bülent Verep
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Current (stream) ,Fishery ,Geography ,Fauna ,%22">Fish ,General Medicine - Abstract
In the present study, the actual fish fauna of Hopa Stream was re-examined. The distribution and latest taxonomic status of the species were assessed. Overall, 3 sampling sites were investigated between 2005–2019 to reveal the inventory of fish species in the area. In total, 11 species were recognized. As a result of this study, one species of Gasterosteus aculeatus, which could not be detected in previous studies, were recorded for the first time. As a result, no significant differences were detected in the ecological balance of Hopa stream in terms of fish fauna, since there is no loss of biodiversity from the previously reported species.
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- 2020
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22. Low Genetic Diversity in Turkish Populations of Wels Catfish Silurus glanis L., 1758 (Siluridae, Pisces) Revealed by Mitochondrial Control Region Sequences
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Gokhan Kalayci, Ismail Aksu, Davut Turan, and Yusuf Bektaş
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mtDNA control region ,Genetic diversity ,biology ,Turkish ,Population genetics ,Zoology ,Aquatic Science ,biology.organism_classification ,language.human_language ,Wels catfish ,Siluridae ,language ,Animal Science and Zoology ,Silurus - Abstract
This study aimed to investigate the genetic diversity and population structure of Wels catfish Silurus glanis L. 1758 in Turkey using squences of the mitochondrial DNA control region The 887-bp fragment of D-loop was aligned for 112 S. glanis individuals from ten wild populations in Turkey, defined by 29 polymorphic sites comprising 16 haplotypes. The low haplotype diversity and nucleotide diversity within each population ranged from 0.000 to 0.378 and from 0.0000 to 0.0045, respectively. Analysis of molecular variance showed significant genetic differentiation among ten populations (FST =0.940; P0.05), Harpending’s raggedness index (Hri; 0,300, P>0.05) and Ramos-Onsins & Rozas (R2; 0,0771, P>0.05), supporting population neutrality.
- Published
- 2020
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23. Molecular systematics and phylogeography of the genus Alburnus Rafinesque, 1820 (Teleostei, Leuciscidae) in Turkey
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Cüneyt Kaya, Yusuf Bektaş, Ismail Aksu, Davut Turan, Fahrettin Küçük, and Esra Bayçelebi
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0106 biological sciences ,Mitochondrial DNA ,biology ,Cytochrome b ,010607 zoology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Phylogeography ,Alburnus ,Genus ,Phylogenetics ,Evolutionary biology ,Molecular phylogenetics ,Genetics ,Molecular Biology ,Gene - Abstract
In this study, the phylogeny of Alburnus genus distributed in Turkish freshwaters was performed by analyzing mitochondrial cyt b gene (1141 bp) and COI gene (1551 bp) sequences from 1172 samples representing 112 populations of 24 species through their geographical distribution. According to our findings, 20 valid species are distributed in Turkey of which 18 have already been known. While six Alburnus species (A. battalgilae, A. istanbulensis, A. carinatus, A. schischkovi, A. nasreddini ve A. adanensis) have been synonomized, two new species (Alburnus sp.1 and Alburnus sp.2) from Dicle River and Çapraz Stream/Susurluk River have been identified. Extinct species such as A. akili and A. nicaeensis have not been observed in situ. Phylogenetic tree topologies and haplotype network of the 119 cyt b and 80 COI haplotypes detected in Alburnus species have indicated a consensus tree topology containing twenty lineages, each of corresponding to one species, and three Alburnus haplogroups corresponding to the geographical origins: Eastern Anatolia (I), Mediterranean (2) and Western & Northern Anatolia (3). The results indicate that the divergence between those haplogroups may have occurred during the Middle Miocene-Middle Pleistocene periods (from 14.9 to 5.29 million years).
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- 2020
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24. A new species of trout from the northern drainages of Euphrates River, Turkey (Salmoniformes: Salmonidae)
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Cüneyt Kaya, Gökhan Kalaycι, Davut Turan, Esra Bayçelebi, and Yusuf Bektaş
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Male ,0106 biological sciences ,Turkey ,Trout ,Zoology ,Aquatic Science ,010603 evolutionary biology ,01 natural sciences ,Rivers ,Species Specificity ,Tributary ,Animals ,Salmo ,Ecology, Evolution, Behavior and Systematics ,Salmonidae ,geography ,geography.geographical_feature_category ,biology ,Spots ,Pigmentation ,010604 marine biology & hydrobiology ,Salmoniformes ,biology.organism_classification ,Fish anatomy ,Female ,Black spot - Abstract
Salmo fahrettini, a new species, is distributed in the northern tributaries of the Euphrates River. It differs from other Salmo species in adjacent waters by a combination of the following characters: a greyish body; one black spot behind the eye and on the cheek; three to six black spots on the opercle; numerous black spots on the back (missing on the predorsal area), flank and middle part of body, surrounded by a roundish white ring; red spots in the median part of the body, surrounded by a roundish white ring; short and narrow maxilla; increase in the number of black and red spots with an increase in size; adipose fin medium size, no or rarely one red spot at its posterior edge; 109-116 lateral line scales; 27-30 scale rows between dorsal-fin origin and lateral line; 20-23 scale rows between the lateral line and anal-fin origin; maxilla length 8.8-10.0% standard length in males, 8.8-9.6 in females.
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- 2020
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25. Evaluation of Karataş stream (Pazaryolu-Erzurum) in terms of some hydrobiological, hydrological and physicochemical water quality characteristics, fish fauna and hydro-electric power plant project
- Author
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Bülent VEREP, Davut TURAN, Cengiz MUTLU, RTEÜ, Su Ürünleri Fakültesi, Su Ürünleri Temel Bilimler Bölümü, Verep, Bülent, and Turan, Davur
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Karataş deresi ,Su kalitesi ,Fen ,Colloid and Surface Chemistry ,Water quality ,Karataş stream ,Fish fauna ,Science ,Physical and Theoretical Chemistry ,Balık faunası - Abstract
Bu çalışmada Erzurum iline bağlı Pazaryolu ilçesinin Karataş köyünden geçen Karataş deresinin bazı hidrobiyolojik, hidrolojik ve fizikokimyasal su kalitesi özelliklerinin belirlenmesiyle akarsu üzerinde planlanmış bir HES projesinin kurulacağı dere yatağı alanının incelenmesi ve balık popülasyonu, fizikokimyasal su kalitesi ve hidrolojik parametreler açısından değerlendirmesi amaçlanmıştır. Bu amaçla Karataş köyü girişinde bulunan mansaptan akarsuyun membasına kadar su ve balık örneklemeleri yapılmış, akarsu yatağı boyunca tarım arazilerine bağlanan su kanallarında akış hızı ölçülerek her arkın debisi belirlenmeye çalışılmıştır. Çalışma süresince akarsu yatağında yapılan ölçüm ve gözlemler neticesinde Karataş deresinde Salmonidae, Leuciscidae ve Cyprinidae familyalarına ait 5 farklı balık türünün yaşadığı, fizikokimyasal su kalitesinin kıta içi su kalite standartlarına göre 1. sınıf veya çok temiz statüsünde olduğu ve akarsu havzasının etrafında dere suyu kullanılarak tarımsal ürünler üretilmesi sebebiyle habitatın çok iyi korunduğu, gerek su kalitesi ve gerekse akarsu yatağının bitki örtüsü sayesinde dere yatağı üzerindeki sulama kanalları ağızlarında önemli bir doğal balık üretim ve besleme bölgesinin oluştuğu gözlemlenmiştir. Dolayısıyla bu sucul yaşam alanının korunması gerektiği ve Karataş deresi akarsu yatağı üzerinde kurulması planlanan HES projesinin gerek akarsu sucul yaşamına ve gerekse akarsu havzası karasal alanlarındaki tarımsal üretimine geri dönüşümsüz etkiler oluşturabileceği kanısına ulaşılmıştır., In this study, it was aimed to determine some hydrobiological, hydrological and physicochemical water quality characteristics of Karataş stream passing through Karataş village of Pazaryolu district of Erzurum province, to examine the creek bed area where a HEPP project planned on the river will be established and to evaluate it in terms of fish population, physicochemical water quality and hydrological parameters. For this purpose, water and fish samples were taken from the downstream at the entrance of Karataş village to the upstream of the stream, and the flow rate of each channel to agricultural garden was tried to be determined by measuring the flow rate in the water channels connected to the agricultural lands along the stream bed. As a result of the measurements and observations made in the riverbed during the study, it was found that five different fish species belonging to the families Salmonidae, Leuciscidae, and Cyprinidae live in the Karataş stream, that the physico-chemical water quality is first class or very clean according to the standards for water quality of inland waters, and that agricultural products are produced by using the stream water around the river basin. It has been observed that an important natural fish production and feeding area has been formed at the mouths of the irrigation channels on the stream bed, thanks to both the water quality and the vegetation of the stream bed. Therefore, it has been concluded that this aquatic habitat should be protected and that the HEPP project planned to be built on the riverbed of Karataş creek may cause irreversible effects both on the aquatic life of the river and on the agricultural production in the terrestrial areas of the river basin.
- Published
- 2022
26. Kuzgun Baraj Gölü ve Drenajlarının Balık Faunası (Erzurum, Türkiye)
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Esra Bayçelebi, Davut Turan, RTEÜ, Su Ürünleri Fakültesi, Su Ürünleri Temel Bilimler Bölümü, Bayçelebi, Esra, and Turan, Davut
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Anatolia,ichthyology,taxonomy ,Fen ,İhtiyofauna ,Fauna ,Science ,General Medicine ,Fırat Nehri ,Taksonomi ,Fishery ,Geography ,%22">Fish ,Anatolia ,Ichthyofauna ,Euphrates river ,Anadolu ,Taxonomy ,Anadolu,ihtiyoloji,taksonomi - Abstract
This study was carried out to determine the fish fauna of Kuzgun Dam Lake dranaige. Eight (Barbus lacerta, Capoeta damascina, Alburnus sellal, Alburnoides velioglui, Squalius semae, Oxynoemacheilus araxensis, O. bergianus and Salmo euphrataeus) fish species belonging to 4 families (Cyprinidae, Leuciscidae, Nemachelidae and Salmonidae) were determined., Bu çalışma Kuzgun Baraj Gölü ve drenajının balık faunasını belirlemek amacıyla yapılmıştır. 4 familyaya (Cyprinidae, Leuciscidae, Nemachelidae ve Salmonidae) ait 8 (Barbus lacerta, Capoeta damascina, Alburnus sellal, Alburnoides velioglui, Squalius semae, Oxynoemacheilus araxensis, O. bergianus and Salmo euphrataeus) tür tespit edilmiştir.
- Published
- 2021
27. Turcichondrostoma, a new genus for the Leuciscidae (Teleostei: Cypriniformes) from Southwestern Anatolia
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Salim Serkan Güçlü, Ismail Aksu, Davut Turan, and Fahrettin Küçük
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Gills ,Teleostei ,biology ,Osteology ,Turkey ,Chondrostoma ,Zoology ,Aquatic Science ,biology.organism_classification ,DNA, Mitochondrial ,Cypriniformes ,Genetic distance ,Genus ,Molecular phylogenetics ,Animals ,Taxonomy (biology) ,Ecology, Evolution, Behavior and Systematics ,Phylogeny - Abstract
Turcichondrostoma, a new genus, from the Southwestern Anatolia is distinguished by having fewer gill rakers on first gill arch and morphologies of premaxilla and dentary bones. In addition, as a result of the phylogenetic analyses based on combine data set (mtDNA COI + Cytb) sequences (1706 bp.), Turcichondrostoma genus was recovered with high posterior probability value (BI PP:1.0) and strong-supported bootstrap value (ML BP: 100%) among the former Chondrostoma groups. Also, high K2P mean genetic distance values (more than 7.84%) differentiated genus Turcichondrostoma from the other genera of former Chondrostoma group. The results of both morphological-osteological and molecular analyses are congruent with each other. The results of this study revealed that the genus Turcichondrostoma is easily distinguished from the genera in Chondrostoma group.
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- 2021
28. Alburnus battalgilae, a synonym of A. attalus (Teleostei: Leuciscidae)
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Cüneyt Kaya, Jörg Freyhof, Esra Bayçelebi, and Davut Turan
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0106 biological sciences ,0301 basic medicine ,Teleostei ,biology ,Cyprinidae ,Zoology ,Biodiversity ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,03 medical and health sciences ,River drainage ,030104 developmental biology ,Synonym (taxonomy) ,Rivers ,Alburnus battalgilae ,Freshwater fish ,Animals ,Animal Science and Zoology ,Taxonomy (biology) ,Ecology, Evolution, Behavior and Systematics ,Taxonomy - Abstract
Alburnus battalgilae Özuluğ & Freyhof, 2007 from the Gediz River drainage in western Anatolia is a junior synonym of A. attalus Özuluğ & Freyhof, 2007, from the adjacent Bakır River drainage. We were unable to confirm the morphological differences originally proposed. As both species have been described in the same publication, as First Reviewers, we prioritise of A. attalus over A. battalgilae.
- Published
- 2021
29. Illustrated type specimens catalogue of Recep Tayyip Erdogan University Zoology Museum of the Faculty of Fisheries
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Davut Turan, Esra Bayçelebi, and Cüneyt Kaya
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Current distribution ,Universities ,Cyprinidae ,Fisheries ,Zoology ,Biology ,Type (biology) ,Animalia ,Animals ,Humans ,Chordata ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Actinopterygii ,Museums ,Biodiversity ,Faculty ,Perciformes ,Fishery ,Cypriniformes ,Paratype ,Animal Science and Zoology ,Sisoridae ,Gobiidae ,Siluriformes - Abstract
The first type specimens catalogue of Recep Tayyip Erdogan University Zoology Museum of the Faculty of Fisheries, Rize (FFR) is presented. The catalog includes 3030 specimens from 249 lots, representing 55 holotypes and 2974 paratypes of 62 nominal species. Corrections and comments on the original descriptions are included in the remarks for each species if necessary. The current distribution range of all species is given. Photos of all holotypes and one paratype of each nominal species are presented to show the current condition of the types.
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- 2021
30. Phylogeny and phylogeography of the genusAlburnoides(Teleostei, Cyprinidae) in Turkey based on mitochondrial DNA sequences
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Ismail Aksu, Fitnat Güler Ekmekçi, Sebnem Atasaral, Cüneyt Kaya, Davut Turan, Esra Bayçelebi, and Yusuf Bektaş
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0106 biological sciences ,0301 basic medicine ,Phylogenetic tree ,Cytochrome b ,Species distribution ,Biology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,03 medical and health sciences ,Phylogeography ,030104 developmental biology ,Genus ,Phylogenetics ,Evolutionary biology ,Genetics ,Alburnoides ,Molecular clock ,Molecular Biology - Abstract
Turkey has a rich freshwater biodiversity in terms of Cyprinid genus in respect to its geographical location. To elucidate the phylogeny of the Alburnoides genus, one of these genera, genetic data for the cytochrome b gene (1141 bp) was generated for 445 samples collected at 42 sampling sites across their geographical distribution. A total of 54 mitochondrial haplotypes identified were distrubuted among distinct twelve species that did not share haplotypes with each other. Pairwise sequence divergence among these species range from 1.37% (A. emineae and A. velioglui) and 10.99% (A. manyasensis and A. smyrnae). A new potential species in the River Dirgine that run into the Black Sea Basin was separated from the most closed known species with mean 6.3%. Network analysis and phylogenetic analysis indicated that all haplotypes were clustered into two major clades, which corresponded to twenty-three Alburnoides lineages, with moderate-high bootstrap supports and mutational steps, respectively. Application of a molecular clock to a Bayesian phylogeny indicates that Alburnoides diversified under the paleogeographic conditions such as tectonic uplift and faulting Miocene aged as well as climatic oscillation and sea-level fluctuations during late Miocene-middle Pleistocene. The genetic results of the present study indicated the inter-specific distance of cyt b gene sequences followed the ideal results for species identification and phylogeny of Turkish spirlins.
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- 2019
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31. New Record of Alburnoides kosswigi (Pisces: Leuciscidae) in the Ilgın Lake Basin
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Cüneyt Kaya and Davut Turan
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biology ,Lake basin ,Zoology ,General Medicine ,Alburnoides ,biology.organism_classification - Abstract
Alburnoides kosswigi Sakarya Nehri'nden tanimlanmistir. Morfolojik veriler, bu turun ayni zamanda Ic Anadolu'daki Ilgin Golu'nun bir kolu olan Beykonak Deresi'nde de yayilis gosterdigini ortaya koymaktadir. Alburnoides kosswigi turunun Ilgin populasyonlari, pelvik yuzgec kaidesinin arka kenari ile anus arasinda bulunan ventral karinanin pulsuz olmasi, goz capinin yaklasik olarak burun uzunlugu ve gozlerarasi mesafeyle esit olmasi, ligne lateralde 42-47 pul bulunmasi, anal yuzgecte 11½–13½ dallanmis isin bulunmasi, 38-39 toplam omurunun bulunmasi, 11-12 predorsal omurunun bulunmasi ve 7-8 solungac dikeninin bulunmasi gibi ayirt edici karakterlere sahiptir.
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- 2019
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32. Oxynoemacheilus cemali , a new species of stone loach (Teleostei: Nemacheilidae) from the Çoruh River drainage, Turkey
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Esra Bayçelebi, Davut Turan, Ismail Aksu, Gokhan Kalayci, and Cüneyt Kaya
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Male ,0106 biological sciences ,Nemacheilidae ,Turkey ,Stone loach ,Oxynoemacheilus ,Color ,Zoology ,Aquatic Science ,010603 evolutionary biology ,01 natural sciences ,Rivers ,Animals ,Phylogeny ,Ecology, Evolution, Behavior and Systematics ,Teleostei ,biology ,Pigmentation ,010604 marine biology & hydrobiology ,Fish fin ,biology.organism_classification ,Cypriniformes ,Female ,Taxonomy (biology) ,Crest ,Animal Distribution ,Meristics - Abstract
Oxynoemacheilus cemali sp. nov. is described from the Çoruh River drainage in the eastern Black Sea basin. One molecular marker (coI), 25 morphometric and four meristic characters were analysed. Oxynoemacheilus cemali is distinguished from O. kosswigi, O. banarescui, O. samanticus and O. angorae in the Black Sea basin by having a suborbital groove in males, an axillary lobe at the pelvic-fin base, no dorsal adipose crest on the caudal peduncle, a slightly-forked caudal fin and 7-15 dark grey dorsal saddles. Morever, Oxynoemacheilus cemali is distinguished by commonly having 9-15 irregularly-shaped dark-grey bars on the flank posterior to the dorsal-fin origin or, rarely having a mottled pattern or 4-6 irregularly shaped dark-grey bars on the flank posterior to the dorsal-fin origin. Oxynoemacheilus cemali is also distinguished from the closely related species O. araxensis and O. cyri, distributed outside the Black Sea basin, by having 15 and 31 diagnostic nucleotide substitutions in the coI barcode region, respectively.
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- 2019
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33. emGarra/em emorontesi/em, a new species from the Orontes River drainage (Teleostei: Cyprinidae)
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Esra, Bayçelebi, Cüneyt, Kaya, Davut, Turan, and Jörg, Freyhof
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Rivers ,Cyprinidae ,Animals ,Lebanon - Abstract
Garra orontesi, new species, is described from the Orontes River drainage in the eastern Mediterranean Sea basin in Turkey and Syria. It is distinguished from its congeners in the Mediterranean Sea basin and adjacent Mesopotamia by possessing 17-21 gill rakers on the lower part of the first gill arch, the pelvic-fin origin usually below the second branched dorsal-fin ray, 8½ branched dorsal-fin rays, usually 2-3 scales between the tip of the pectoral and pelvic-fin origins, and no tubercles behind the upper posterior eye margin. It is also distinguished by a minimum K2P distance of 2.7% in its COI barcode region against G. rufa, and 3.9% against the geographically adjacent G. turcica.
- Published
- 2021
34. Marmara Denizi'nin güney drenajından yeni bir alabalık türü (Teleostei: Salmonidae)
- Author
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Doç.dr. Davut Turan, Sadi Aksu, RTEÜ, Su Ürünleri Fakültesi, Su Ürünleri Temel Bilimler Bölümü, and Turan, Davut
- Subjects
Fen ,Freshwater fish ,Science ,General Medicine ,Biodiversity ,Biyolojik çeşitlilik ,Taksonomi ,Geography ,Anadolu,biyolojik çeşitlilik,iç su balığı,Salmo,taksonomi ,Anatolia,biodiversity,Salmo,taxonomy ,Anatolia ,Salmo ,İç su balığı ,Anadolu ,Taxonomy - Abstract
Salmo duhani, sp. n., a new species, is described from the southern Marmara Sea drainages, Turkey. It differs from the other Salmo species in the neighboring basins by having a shorter maxillary (8-10% SL); a shorter head (24-28% SL); 115-121 lateral line scales; 26-29 scale rows between lateral line and dorsal-fin origin; 20-23 scale rows between lateral line and anal-fin origin; 15-17 scales between lateral line and adipose-fin insertion; 17-19 gill rakers on the outer side of first gill arch; 10-13 large and oblong parr marks along the lateral line in all individuals., Yeni bir tür olan Salmo duhani Türkiye'nin güney Marmara Denizi drenajından tanımlanmaktadır. Türün yakın havzalarda dağılım gösteren diğer Salmo türlerinden farkı: maksiller kısadır (% 8-10 SB); baş boyu kısadır (% 24-28 SB); ligne lateral pul sayısı 115-121; ligne lateral ile dorsal yüzgecin başlangıcı arasındaki pul sıra sayısı 26-29; ligne lateral ile anal yüzgecin başlangıcı arasındaki pul sıra sayısı 20-23; ligne lateral ile adipoz yüzgecin başlangıcı arasındaki pul sıra sayısı 15-17; birinci solungaç yayının dış tarafında bulunan solungaç dikeni sayısı 17-19; bütün bireylerde yanal çizgi boyunca büyük ve dikdörtgen şeklinde 10-13 par bulunmasıdır.
- Published
- 2021
35. Alburnus nasreddini, a synonym of A. escherichii (Teleostei: Leuciscidae)
- Author
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Jörg Freyhof, Cüneyt Kaya, Esra Bayçelebi, and Davut Turan
- Subjects
Teleostei ,biology ,Cyprinidae ,Zoology ,Biodiversity ,Alburnus nasreddini ,biology.organism_classification ,Lakes ,River drainage ,Molecular level ,Rivers ,Synonym (taxonomy) ,Animals ,Animal Science and Zoology ,Taxonomy (biology) ,Ecology, Evolution, Behavior and Systematics ,Taxonomy - Abstract
Alburnus nasreddini described from Lake Eber in Central Anatolia is a junior synonym of A. escherichii, a widespread species in adjacent Sakarya River drainage. We found no morphological characters to distinguish Alburnus nasreddini from A. escherichii and both are poorly distinguished on a molecular level also.
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- 2020
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36. Molecular systematics and phylogeography of the genus
- Author
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Yusuf, Bektas, Ismail, Aksu, Cüneyt, Kaya, Esra, Bayçelebi, Fahrettin, Küçük, and Davut, Turan
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Electron Transport Complex IV ,Phylogeography ,Haplotypes ,Turkey ,Cyprinidae ,Mediterranean Sea ,Animals ,Sequence Analysis, DNA ,Cytochromes b ,Phylogeny - Abstract
In this study, the phylogeny of
- Published
- 2020
37. Oxynoemacheilus cilicicus, a new nemacheilid loach from the Göksu River in southern Anatolia (Teleostei: Nemacheilidae)
- Author
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Gokhan Kalayci, Cüneyt Kaya, Jörg Freyhof, Esra Bayçelebi, and Davut Turan
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0106 biological sciences ,Male ,Nemacheilidae ,Oxynoemacheilus ,010607 zoology ,Zoology ,010603 evolutionary biology ,01 natural sciences ,DNA, Mitochondrial ,Rivers ,biology.animal ,Animalia ,Animals ,Chordata ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Teleostei ,biology ,Actinopterygii ,Fish fin ,Biodiversity ,biology.organism_classification ,Eastern mediterranean ,Cypriniformes ,Freshwater fish ,Animal Science and Zoology ,Taxonomy (biology) ,Panthera - Abstract
Oxynoemacheilus cilicicus, new species, is described from the Göksu, Seyhan and Ceyhan rivers in southern Turkey. It is distinguished from other Oxynoemacheilus species in the Eastern Mediterranean Sea basin by possession of an incomplete lateral line, terminating before the vertical of the dorsal-fin origin or slightly behind the dorsal-fin base, a deeply emarginate caudal fin, no suborbital groove in male individuals, and a series of dark-brown bars on the flank not interrupted along the lateral line. Molecular data suggest that Oxynoemacheilus cilicicus is characterised by 22 variable nucleotide substitutions and a minimum K2P distance of 4.09% with O. panthera in the mtDNA COI barcode region.
- Published
- 2020
38. Phylogeography of the genus Chondrostoma Agassiz, 1835 (Teleostei: Leuciscidae) in Anatolia, as inferred from mitochondrial DNA analysis
- Author
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Salim Serkan Güçlü, Yılmaz Çiftci, Ayşe Gül Mutlu, Davut Turan, and Fahrettin Küçük
- Subjects
0106 biological sciences ,Mitochondrial DNA ,Teleostei ,biology ,Cytochrome b ,Chondrostoma ,010607 zoology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Phylogeography ,Evolutionary biology ,Cypriniformes ,Molecular phylogenetics ,Animal Science and Zoology ,Taxonomy (biology) - Abstract
The molecular phylogeny of the Anatolian species of the genus Chondrostoma (Cypriniformes: Leuciscidae) was studied by sequencing of the mitochondrial cyt b gene. A total of 144 tissue samples from 14 described species were collected from 35 different localities in Turkey. In total, 74 cyt b haplotypes were identified. Haplotype network construction and phylogenetic analysis allocated all 14 species to two main haplogroups that are congruent with those currently accepted on the basis of morphological characteristics. The first haplogroup, the Nasus lineage, is distributed across Caucasia and the Black Sea and Marmara regions and is also represented in the Aegean basin. The second haplogroup, the Regium lineage, is distributed from eastern Anatolia to the Mediterranean Sea basin. Based on estimates generated in this study, the radical divergence between the main Chondrostoma haplogroups in Turkey occurred during the late Miocene (Tortonian stage) and late Pliocene Period, approximately 5.82 Mya (8.48–3.45 Mya). The splitting of the Nasus lineage occurred approximately 5.11 Mya, in the early Pliocene, and the Regium Lineage diverged from its sister group, the Nasus lineage approximately 4.77 Mya. The primary diversification events for the species belonging to these two haplogroups occurred in the Late Pliocene to Early Pleistocene which coincides with the uplifting of the Anatolian plateau about 2.5–3.0 Mya.
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- 2020
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39. A new Chondrostoma species from the Büyük Menderes River Basin, Turkey (Teleostei: Cyprinidae)
- Author
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Salim Serkan Güçlü, Ayşe Gül Mutlu, Davut Turan, Yılmaz Çiftci, and Fahrettin Küçük
- Subjects
0106 biological sciences ,geography ,education.field_of_study ,Teleostei ,geography.geographical_feature_category ,biology ,Chondrostoma ,Population ,010607 zoology ,Drainage basin ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Fishery ,Freshwater fish ,Cyprinidae ,Animal Science and Zoology ,Taxonomy (biology) ,education - Abstract
In a study of the fishes of the Buyuk Menderes River Basin, Aegean region of Turkey, two populations of Chondrostoma were found which showed clearly distinctive characters: the population from the ...
- Published
- 2018
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40. Characteristics of Capoeta oguzelii, a new species of cyprinid fish from the Ezine Stream, Black Sea basin, Turkey (Teleostei: Cyprinidae)
- Author
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Mustafa İbrahim Osmanoğlu, Ali Eslem Kadak, Davut Turan, and Mahmut Elp
- Subjects
0106 biological sciences ,Teleostei ,Barbel ,education.field_of_study ,biology ,Population ,010607 zoology ,Zoology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Dorsal fin ,Capoeta ,Cyprinidae ,Animal Science and Zoology ,Taxonomy (biology) ,education ,Meristics - Abstract
Four species of Capoeta (C. baliki, C. banarescui, C. sieboldii and C. ekmekciae) have been reported from Black Sea drainages, to date. We recognised an additional species in the Ezine Stream in the Southern Black Sea basin. Based on the analysis of 21 metric and 8 meristic data, we concluded that the Ezine Stream population forms a distinct, unnamed species, which we have described as Capoeta oguzelii sp. n. This species can be distinguished from all other Capoeta species by the following combination of characteristics: small size, presence of only one pair of barbels, absence of a keratinised edge of the lower jaw, a weakly ossified last simple dorsal fin ray, 7–10 gill rakers on the first gill arch and 7½ branched dorsal fin rays.http://www.zoobank.org/urn:lsid:zoobank.org:pub:066CC44A-3806-4DB7-8E88-AD971200E1EE
- Published
- 2018
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41. A new species ofPetroleuciscus(Teleostei: Cyprinidae) from the Büyük Menderes River, southwestern Anatolia, Turkey
- Author
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Gokhan Kalayci, Cüneyt Kaya, Fahrettin Küçük, Yusuf Bektaş, and Davut Turan
- Subjects
0106 biological sciences ,0301 basic medicine ,Petroleuciscus ,Teleostei ,biology ,Fish fin ,Anatomy ,Aquatic Science ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Posterior margin ,03 medical and health sciences ,River drainage ,030104 developmental biology ,Cyprinidae ,Taxonomy (biology) ,Snout ,Ecology, Evolution, Behavior and Systematics - Abstract
Petroleuciscus ninae sp. nov. is described from the Buyuk Menderes River drainage. The new species is distinguished by having a black lateral stripe from head to base of caudal fin, stripe distinct anteriorly and posteriorly, wider than eye diameter; numerous black pigments on anal-fin rays; body depth at dorsal-fin origin 27-30% standard length (LS ); head width at posterior margin of eye 16-19% LS ; and eye diameter smaller than snout length. Petroleuciscus ninae is also distinguished from other species in adjacent waters by having six fixed diagnostic nucleotide substitutions in the mitochondrial DNA coI barcode region.
- Published
- 2018
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42. Rize İlinin Güncel Balık Faunası
- Author
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Cüneyt Kaya, Esra Bayçelebi, and Davut Turan
- Subjects
Fen ,Science ,Fauna ,freshwater,taxonomy,ichthyofauna ,tatlısu,taksonomi,ihtiyofauna ,Zoology ,Taxonomy (biology) ,General Medicine ,Biology - Abstract
In this study, fish samples were collected from 7 large river systems (Iyidere, Güneysu, Büyükdere, Melyat, Fırtına, Yeşil and Çağlayan)between April 2004 and April 2014 in order to reveal the fish fauna of the Rize Province. As a result of this study 14 species (Lampetra lanceolata, Salmocoruhensis, Salmo rizeensis, Alburnoides fasciatus, Alburnus derjugini, Barbus escherichii, Capoeta banarescui, Chondrostoma colchicum, Rutilus frisii, Squaliussp., Cobitis splendens, Mugil cephalus, Liza aurata, Ponticola rizensis) belonging to 5 ordo (Petromyzoniformes, Salmoniformes, Cypriniformes, Mugiliformes,Perciformes) and 6 families (Petromyzonidae, Salmonidae, Cyprinidae, Cobitidae, Mugilidae, Gobiidae) were determined., Bu çalışma Rize İlinin balık faunasını ortaya koymak amacıyla, Nisan 2004 - Nisan 2014 tarihleri arasında 7 büyük akarsu sistemi (İyidere,Güneysu, Büyükdere, Melyat, Fırtına, Yeşil ve Çağlayan) üzerinde gerçekleştirilmiştir. Bu çalışma sonucunda 5 ordo (Petromyzoniformes, Salmoniformes,Cypriniformes, Mugiliformes ve Perciformes) ve 6 familyaya (Petromyzonidae, Salmonidae, Cyprinidae, Cobitidae, Mugilidae, Gobiidae) ait 14 tür (Lampetralanceolata, Salmo coruhensis, Salmo rizeensis, Alburnoides fasciatus, Alburnus derjugini, Barbus escherichii, Capoeta banarescui, Chondrostoma colchicum,Rutilus frisii, Squalius sp., Cobitis splendens, Mugil cephalus, Liza aurata, Ponticola rizensis) tespit edilmiştir.
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- 2017
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43. Molecular phylogeny of the genus Capoeta (Teleostei: Cyprinidae) in Anatolia, Turkey
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Ali Osman Belduz, Davut Turan, Oğuzhan Eroğlu, Yılmaz Çiftci, Gokhan Kalayci, Yusuf Bektaş, and Ismail Aksu
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0106 biological sciences ,0301 basic medicine ,biology ,Phylogenetic tree ,Cytochrome b ,Ecology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Biochemistry ,Maximum parsimony ,03 medical and health sciences ,030104 developmental biology ,Capoeta ,Genus ,Phylogenetics ,Molecular phylogenetics ,Cyprinidae ,Ecology, Evolution, Behavior and Systematics - Abstract
Phylogeny of Capoeta genus distributed in Anatolia were carried out by analysing mitochondrial cytochrome b gene (1140 bp) sequences from 332 samples representing 59 populations of 15 species across their geographical distribution. Haplotype network and phylogenetic analysis (neighbor-joining, maximum-likelihood, maximum parsimony, and bayesian inference) of the 103 cytochrome b haplotypes detected in Capoeta species resulted in similar tree topologies including four distinct clades, in congruent with taxonomic classification of Capoeta based on morphological characteristics such as scale size, mouth shape, and body spotting. Based on cyt b nucleotide sequences, the present study suggests that four undescribed Capoeta species may exist in Anatolia freshwater; one species in the Kizilirmak River, the second species in the Dirgine River, the third species B. Menderes River, and the fourth species in the some Yesilirmak tributaries that run into the Black Sea Basin. Capoeta taxa distributed in the rivers of Anatolian freshwater basins are isolated from each other during middle Miocene (Serravallian)-late Pleistocene (Ionian) (about 13.75–0.41 million years). This suggests that distribution and presence of Capoeta species were shaped under paleogeographic conditions such as Pleistocene climate changes in Quarternary period as well as tectonic uplift and faulting, which probably has not changed up to now.
- Published
- 2017
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44. Phylogeny and phylogeography of the genus
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Yusuf, Bektas, Ismail, Aksu, Cuneyt, Kaya, Esra, Baycelebi, Sebnem, Atasaral, Fitnat Guler, Ekmekci, and Davut, Turan
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Phylogeography ,Species Specificity ,Turkey ,Genome, Mitochondrial ,Cyprinidae ,Animals ,Sequence Analysis, DNA ,DNA, Mitochondrial ,Phylogeny - Abstract
Turkey has a rich freshwater biodiversity in terms of Cyprinid genus in respect to its geographical location. To elucidate the phylogeny of the
- Published
- 2019
45. Beyşehir Gölü Havzası'ndaki (Türkiye) Endemik Balık Türlerinin Taksonomik Durumu
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Cüneyt Kaya, Fahrettin Küçük, Esra Bayçelebi, Davut Turan, and Salim Serkan Güçlü
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Konya Endorheic Basin,endemic fish,exotic fish,ichthyofauna ,Konya Kapalı Havzası,endemik balık,egzotik balık,ihtiyofauna ,Geography, Planning and Development ,Fish species ,Zoology ,Management, Monitoring, Policy and Law ,Biology ,Structural basin ,Biyoloji - Abstract
The surveys were conducted between 2005-2019 to assess endemic fish species in the Lake Beyşehir that have special importance in terms of endemism. A total of 12 endemic freshwater fish species (Aphanius cf. iconii, Capoeta mauricii, Chondrostoma beysehirense, Garra kemali, Gobio microlepidotus, Pseudophoxinus anatolicus, Pseudophoxinus battalgilae, Pseudophoxinus hittitorum, Squalius anatolicus, Cobitis battalgilae, C. bilseli and Oxynoemacheilus atili) belonging to 6 families (Aphaniidae, Cyprinidae, Gobionidae, Leuciscidae, Cobitidae and Nemachelidae) were observed., Bu çalışmada endemizim açısından büyük öneme sahip olan Beyşehir Gölü Havzasında 2005-2019 tarihleri arasında yapılmış olan çalışmaların sonuçlarına yer verilmiştir. Çalışma sonucunda 6 familyaya mensup ( Aphaniidae, Cyprinidae, Gobionidae, Leuciscidae, Cobitidae ve Nemachelidae) 12 endemik tatlı su balığı türüne (Aphanius cf. iconii, Capoeta mauricii, Chondrostoma beysehirense, Garra kemali, Gobio microlepidotus, Pseudophoxinus anatolicus, Pseudophoxinus battalgilae, Pseudophoxinus hittitorum, Squalius anatolicus, Cobitis battalgilae, C. bilseli ve Oxynoemacheilus atili) rastlanmıştır.
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- 2019
46. Barbus xanthos, a new barbel from the Southern Aegean basin (Teleostei: Cyprinidae)
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Davut Turan, Salim Serkan Güçlü, Gokhan Kalayci, and Fahrettin Küçük
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0106 biological sciences ,Teleostei ,Barbel ,biology ,Pigmentation ,010604 marine biology & hydrobiology ,Cyprinidae ,Zoology ,Barbus ,Aquatic Science ,Structural basin ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,DNA, Mitochondrial ,Electron Transport Complex IV ,Congener ,Rivers ,Species Specificity ,Freshwater fish ,Animals ,Taxonomy (biology) ,Ecology, Evolution, Behavior and Systematics - Abstract
Barbus xanthos, a new species, is described from the Esen, Dalaman, Tersakan and Buyuk Menderes rivers in south-western Anatolia. It differs from other Barbus species in the adjacent basins by having 53-60 lateral line scales, a weakly ossified last unbranched dorsal-fin ray (about 33-50%), numerous small irregular-shaped black or dark-brown spots smaller than scales, often forming large, black or dark-brown blotches on back and flank in juveniles and adults, and a straight or slightly convex posterior dorsal-fin margin. B. xanthos differs from its most closely related congener, B. pergamonensis, by nine nucleotide substitution sites in the mitochondrial DNA cytochrome oxidase I barcode region.
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- 2019
47. Review of the Oxynoemacheilus tigris group with the description of two new species from the Euphrates drainage (Teleostei: Nemacheilidae)
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Cüneyt Kaya, Matthias F. Geiger, Davut Turan, and Joerg Freyhof
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Nemacheilidae ,Population ,Oxynoemacheilus ,Zoology ,Color ,Mice ,Rivers ,Oxynoemacheilus ercisianus ,Cypriniformes ,Tributary ,Animalia ,Animals ,Drainage ,Chordata ,education ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,education.field_of_study ,geography ,geography.geographical_feature_category ,Actinopterygii ,biology ,Biodiversity ,biology.organism_classification ,Lakes ,Animal Science and Zoology - Abstract
The Oxynoemacheilus tigris species group is reviewed, resulting in the recognition of six species, of which two are described herein as new. Oxynoemacheilus tigris is known from the endorheic Qweik River and the Merziman River, which is a tributary of the western Euphrates. Oxynoemacheilus ercisianus is endemic to the endorheic Lake Van basin and O. hazarensis is endemic to Lake Hazar basin in the upper Tigris drainage. Oxynoemacheilus kaynaki is widespread in the Euphrates drainage. The two undescribed species occur in the Euphrates drainage. Oxynoemacheilus arsaniasus, new species, from the Murat River and the upper Karasu (Muş) River drainage, is distinguished from other species of the O. tigris group by having a bold, black, irregularly-shaped bar at the caudal-fin base, an incomplete lateral line and a scaleless body. Oxynoemacheilus muefiti, new species, from the upper Murat River drainage and a tributary to the Atatürk reservoir, is most similar to O. ercisianus, from which it is distinguished by a more slender body and a shallower dorsal adipose crest. According to our molecular data, the Qweik population of O. tigris is suspected to be introgressed by O. namiri from the Orontes drainage. Oxynoemacheilus erdali is identified as a synonym of O. bergianus as we were unable to find differences between the two species.
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- 2019
48. Alburnus magnificus, a new species of bleak from the Orontes River drainage (Teleostei: Leuciscidae)
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Jörg Freyhof and Davut Turan
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0106 biological sciences ,010607 zoology ,Cyprinidae ,Structural basin ,010603 evolutionary biology ,01 natural sciences ,Data sequences ,Rivers ,Mediterranean Sea ,Animalia ,Animals ,Chordata ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Teleostei ,biology ,Actinopterygii ,Syria ,Biodiversity ,biology.organism_classification ,River drainage ,Eastern mediterranean ,Cypriniformes ,Oceanography ,Alburnus ,Freshwater fish ,Animal Science and Zoology ,Taxonomy (biology) - Abstract
Alburnus magnificus, new species, is described from the northern Orontes River drainage in the eastern Mediterranean Sea basin. It is most similar and closely-related to A. qalilus from coastal rivers in Syria south of the Orontes. Alburnus magnificus is distinguished from A. qalilus by having the anal-fin origin below or behind the vertical through the last dorsal-fin ray, 4–5 scale rows between the lateral line and the anal-fin origin, and a flank pattern of bold black, grey or brown scales on a silvery or brown background. The two species are also distinguished by a minimum K2P distance of 1.8% in their COI sequence data.
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- 2019
49. Comments on the holotype of Alburnus kurui Mangit Yerli 2018 and re-description of A. carianorum Freyhof, Kaya, Bayçelebi, Geiger Turan, 2019 (Teleostei: Leuciscidae)
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Davut Turan, Jörg Freyhof, Cüneyt Kaya, Matthias F. Geiger, and Esra Bayçelebi
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biology ,Statement (logic) ,Publications ,Holotype ,Cyprinidae ,biology.organism_classification ,Genealogy ,International code ,Alburnus ,Extant taxon ,Animals ,Animal Science and Zoology ,Nomenclature ,Ecology, Evolution, Behavior and Systematics ,Subspecific name - Abstract
Article 16.4. of the International Code for Zoological Nomenclature (ICZN, 1999) requires that the fixation of name-bearing types for a new species to be explicit: “Every new specific and subspecific name published after 1999, except a new replacement name…, must be accompanied in the original publication 16.4.1. by the explicit fixation of a holotype,…..and 16.4.2. where the holotype or syntypes are extant specimens, by a statement of intent that they will be (or are) deposited in a collection and a statement indicating the name and location of that collection.” That means that for species described after 1999, the holotype must be finally deposited in a collection and it is obligatory to indicate the name of the collection and where it is located.
- Published
- 2019
50. Description of two new species of the genusGobio(Teleostei: Cyprinidae) from the Black Sea coast of Turkey
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Davut Turan, Yusuf Bektaş, Ismail Aksu, and Bella Japoshvili
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0106 biological sciences ,Teleostei ,biology ,Ecology ,010607 zoology ,Structural basin ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Fishery ,Geography ,Cyprinidae ,Animal Science and Zoology ,Black sea ,Taxonomy (biology) ,Gobio ,Meristics - Abstract
Thesystematics of the genus Gobio, especially of the populations on the southern Black Sea coast, seems to be still far from being resolved. Seven species were rec-orded from the northern Black Sea coast while three species were recognized from the southern Black Sea coast. We examined in total 43 specimens from Kizilirmak River (southern Black Sea basin), 80 specimens from Coruh River (the Western Cau-casus of the Black Sea basin), 14 specimens from Rioni River (the Western Caucasus of the Black Sea basin), and 6 specimens from Kherota and Shakhe Rivers (the Western Caucasus of the Black Sea basin). Based on an analysis of 32 metric and 5 meristic data as well as the number of vertebrae, we concluded that the Kizilirmak and Coruh populations are two distinct, unnamed species, and we describe them here as Gobio kizilirmakensis from the Kizilirmak River and G. artvinicus from the Coruh River.http://www.zoobank.org/urn:urn:lsid:zoobank.org:pub:1ED54FB1-588F-4412-B376-4BE4E4516EB1
- Published
- 2016
- Full Text
- View/download PDF
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