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Age and growth of the nakedband gaper, Champsodon nudivittis (Ogilby, 1895), from the Iskenderun Bay, Northeastern Mediterranean
(Cahiers De Biologie Marine, 2014) Yaglioglu, Deniz; Deniz, Tomris; Erguden, Deniz; Gurlek, Mevlut; Turan, Cemal
The nakedband gaper Champsodon nudivittis (Ogilby, 1895) was first recorded in 2009 on Turkish coastal waters, and has rapidly increased around this region. C. nudivittis is the first lessepsian immigrant of Champsodontid species in the Turkish coastal waters. The present study aims to determine the age and growth parameters of C. nudivittis colonized in the Iskenderun Bay, North-eastern Mediterranean Sea. A total of 296 collected individuals (seasonally average 74 specimens) were studied from November 2011 to October 2012. Total specimen lengths and weights ranged from 6.00 to 14.40 cm and from 1.4 to 29.3 g respectively. Maximum age was 2 years for both sexes. The length-weight relationship was described as W= 0.0040 x L-3.207 (R-2 = 0.957)5 W= 0.0005 x L-3.158 (R-2 = 0.959) and W= 0.0040 x L-3.196 (R-2 = 0.955). The parameters of von Bertalanffy growth fitted to mean observed total lengths-at-age for each sex separately and estimated as L-infinity= 20.41 cm, K= 0.224 year(-1), t(0)= -2.491 year for females,L-infinity= 21.53 cm, K= 0.199 year(-1), t(0)= -2.154 year for males, and as L-infinity= 21.10 cm, K= 0.210 year(-1), t(0)= -2.639 year for combined sexes.
Antimicrobial properties of bioactive compounds isolated from epidermal mucus in two Ray species (Dasyatis marmorata and Gymnura altavela)
(Pharmacotherapy Group, 2020) Uyan, Ali; Turan, Cemal; Erdogan-Eliuz, Elif Ayse; Sangun, Mustafa Kemal
Purpose: To investigate the occurrence and antimicrobial effects of certain biochemical compounds in the epidermal mucus secretions of fish and to demonstrate their potential for biomedical applications. Methods: Crude, aqueous, and acidic epidermal mucus samples were collected from live ray specimens. Gas chromatography and gas chromatography-mass spectrometry (GC/MS) analyses were performed to identify the biochemical compounds present in the mucus. The spectrophotometric broth microdllution method was used to determine the antibacterial and antifungal properties of the mucus extracts. The bacterial strains, Bacillus subtilis, Escherichia coli, Enterococcus faecalis, and Klebsiella pneumonia, were used for the tests, as well as the fungal strains, Candida parapsilosis and Candida albicans. Results: GC/MS analysis revealed the presence of several hydrocarbon-derived compounds in the epidermal mucus of the two ray species. The acidic extract of G. altavela epidermal mucus produced a high MIC value, indicating the highest inhibitory effect of 8.64 mu L against E. coli, while the crude extract of G. altavela epidermal mucus (41.13 mu L against B. subtilis) was the least effective. Conclusion: Epidermal mucus extracts, especially when acid-based, displays strong antimicrobial properties against all the tested pathogens. These findings suggest the plants possess some potential for the development of novel antimicrobial components for applications in medicine.
Biochemical compounds and their antimicrobial activities in epidermal mucus obtained from two ray species Dasyatis pastinaca and Raja miraletus
(Cahiers De Biologie Marine, 2021) Uyan, Ali; Turan, Cemal; Erdogan, Elif Ayse; Sangun, Mustafa Kemal
The epidermal mucus of two ray species Dasyatis pastinaca and Raja miraletus was analyzed to identify biochemical compounds and explore their antimicrobial activities in order to point out their potential for human health-related applications. Epidermal mucus samples were extracted as acidic, crude and aqueous. Gas chromatography and gas chromatography-mass spectrometry (GC/MS) analyses were performed to determine the biochemical compounds of the mucus. The antibacterial and antifungal activities of the extracts obtained from mucus were analysed using the spectrophotometric broth microdilution method against bacterial (Escherichia coli, Klebsiella pneumoniae, Bacillus subtilis and Enterococcus faecalis) and fungal (Candida albicans and Candida parapsilosis) strains. Gas chromatography and gas chromatography-mass spectrometry (GC/MS) analyses revealed the existence of several hydrocarbon-derived compounds and polycyclic aromatic hydrocarbons. In terms of antimicrobial activity, the highest detected MIC (minimum inhibitory concentration) value was 9.78 mu L for the acidic extract of R. miraletus epidermal mucus (RmAC) against E. faecalis, while the lowest MIC value was 80.88 mu L for the acidic extract of R. miraletus epidermal mucus (RmAC) against E. coli. The extracts of epidermal mucus from D. pastinaca and R. miraletus showed antimicrobial activities against all the used pathogens with varying degrees of efficiency and thus may be evaluated as a potential source of marine-derived antimicrobial components for biomedical purposes. gazeuse et chromatographie en phase gazeuse-spectrometrie de masse (GC/MS) ont revele l'existence de plusieurs composes derives d'hydrocarbures et d'hydrocarbures aromatiques polycycliques. Pour l'analyse antimicrobienne, la valeur MIC (minimum inhibitory concentration) la plus elevee detectee etait de 9,78 mu L pour l'extrait acide de mucus epidermique de R. miraletus (RmAC) contre E. faecalis, tandis que la valeur MIC la plus basse etait de 80,88 mu L pour l'extrait acide de mucus epidermique de R. miraletus (RmAC) contre E. coli. Les extraits de mucus epidermique de D. pastinaca et R. miraletus ont neanmoins montre des activites antimicrobiennes contre tous les agents pathogenes utilises avec divers degres d'efficacite et peuvent donc etre consideres comme une source potentielle de composants antimicrobiens d'origine marine a des fins biomedicales.
Classification of Fish Species With Two Dorsal Fins Using Centroid-Contour Distance
(Ieee, 2015) Iscimen, Bilal; Kutlu, Yakup; Uyan, Ali; Turan, Cemal
Color, texture and shape are generally used features in order to recognise an object from an image. In this study centroid-contour distance method is used in order to classify fish species with two dorsal fins. Therefore, fish images with two dorsal fins were used from fish images database taken under specific conditions. Various image processing methods were applied on images in order to extract centroid-contour distances. These distances were used as features and Nearest Neighbour algorithm was used for classification. 15 species from 427 fish images were classified with 95% general accuracy achievement.
Comparative study on fatty acid profiles of anchovy from Black Sea and Mediterranean Sea (Engraulis encrasichoius L., 1758)
(Chemical Publishing Co., 2009) Öksuz, Abdullah; Özyilmaz, Ayse; Turan, Cemal
Fatty acid profile of anchovies (Engraulis encrasichoius) from Black Sea and Mediterranean Sea were determined by using GC-MS. A total of 25 fatty acids were identified. The level of saturated fatty acids (SFA), monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) were found as almost 38, 14.3 and 47.7 % in Mediterranean anchovy (MA), respectively. These levels were followed by 35.40 % (SFA), 29.5 % (MUFA) and 31.27 % (PUFA) in Black Sea anchovy (BSA). Geographical location has no effect on total saturated fatty acids of anchovy, whereas MUFA and PUFA changed significantly. BSA contained greater amount of MUFA and low level of PUFA. Conversely, MA had high level of PUFA and low level of MUFA compare to BSA. The ratio of DHA to EPA was calculated as 5.91 in MA and 1.64 in BSA. Palmitic acid, oleic acid and DHA (22:6 n3) were themost prominent fatty acid in both MA and BSA. DHA level may be considered as a key fatty acid to differentiate MA from the BSA.
Comparative Study on Fatty Acid Profiles of Anchovy from Black Sea and Mediterranean Sea (Engraulis encrasicholus L., 1758)
(Asian Journal Of Chemistry, 2009) Oeksuez, Abdullah; Oezyilmaz, Ayse; Turan, Cemal
Fatty acid profile of anchovies (Engraulis encrasicholus) from Black Sea and Mediterranean Sea were determined by using GC-MS.. A total of 25 fatty acids were identified. The level of saturated fatty acids (SFA), monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) were found as almost 38, 14.3 and 47.7 % in Mediterranean anchovy (MA). respectively. These levels were followed by 35.40 % (SFA), 29.5 % (MUFA) and 31.27 % (PUFA) in Black Sea anchovy (BSA). Geographical location has no effect on total saturated fatty acids of anchovy, whereas MUFA and PUFA changed significantly. BSA contained greater amount of MUFA and low level of PUFA. Conversely, MA had high level of PUFA and low level of MUFA compare to BSA. The ratio of DHA to EPA was calculated as 5.91 in MA and 1.64 in BSA. Palmitic acid, oleic acid and DHA (22:6 n3) were the most prominent fatty acid in both MA and BSA, DHA level may be considered as a key fatty acid to differentiate MA from the BSA.
Comparison of the physical properties of two Green Turtle (Chelonia mydas) nesting beaches (Akyatan and Samandag) in the eastern Mediterranean (Reptilia: Cheloniidae)
(Taylor & Francis Ltd, 2013) Sonmez, Bektas; Turan, Cemal; Ozdilek, Sukran Yalcin
The physical properities of sea turtle nesting beaches may strongly influence embryo development and hence conservation planning. In this study, we compared the characteristics of two nesting beaches of Green Turtles, Chelonia mydas, at Akyatan and Samandag in southern Turkey. A total of 48 sand samples from 48 nests was examined and compared in respect to moisture content (M), temperature (TT), electrical conductivity (EC), salinity (S), total dissolved solution (TDS), pH, air ratio (AR), sand grain size together with distance from sea (DFS), depth (ND), incubation period (ID) and hatching success. Significant differences between the two areas were found in nest chamber moisture, conductivity, salinity, total dissolved solution and sand grain size. In a principal component analysis (PCA), the first component explained 45.1% of the variability and was dominated by the effects of the TDS, EC, S, pH and M. The second component explained 24.2 % of the variation and was dominated by the contributions of the TT, ID and ND. This is evidence that moisture plays a more important role than thermal properties in differentiating between the two beaches.
Çukurova ve Hatay Bölgelerinde bulunan Tilapia (Chiclidae) türlerinin morfolojik farklılıkları
(2006) Gürlek, Mevlüt; Turan, Cemal
Çalışmada Tilapia türlerinin yayılım alanlarını içeren Çukurova ve Hatay Bölgeleri'ndeki nehir, göl ve su ürünleri yetiştiricilik istasyonlarından dört tilapia türü Oreochromis aureus, Oreochromis niloticus, Tilapia zillii ve Tilapia rendalli örnekleri toplanmıştır. Tilapiaların morfolojik ayrımında morfometrik ve meristik karakterler kullanılmıştır. Morfometrik karakterlerin kümelerarası korelyon analizinde sadece Çukurova Üniversitesi (ÇÜ) O. aureus örneği belirgin bir şekilde ayrılık göstermiş diğer türler ise birbiri üzerine kümelenmiştir. Meristik karekterier bakımından ise genel olarak türler ve türlere ait populasyonlar belirgin bir ayrılık göstermiştir. Fakat T. rendalli, O. niloticus ye O. auratus ÇÜ örnekleri birbiri üzerine kümeleşerek bir farklılık göstermemiştir.
Distribution of the demersal fishes on the continental shelves of the Levantine and North Aegean Seas (Eastern Mediterranean)
(2011) Keskin, Çetin; Turan, Cemal; Ergüden, Deniz
The aim of this study was to investigate the distribution patterns of demersal fishes on the continental shelves of the north-eastern Levantine and north-eastern Aegean seas. Fish samples were collected by bottom trawl. A total of 29 hauls were carried out, 15 hauls between 43 to 121 m depth in the north-eastern Levantine Sea and 14 hauls between 65 to 100 m depth in the north-eastern Aegean Sea. The total trawled area for both region was 1.87 km2. Cluster analysis and non-metric multidimensional scaling were applied to identify hauls grouping. Among 114 fish species found, 84 were recorded in the north-eastern Levantine Sea and 64 in the north-eastern Aegean Sea. Fifty species were found exclusively from the northeastern Levantine Sea, 30 species exclusively from the north-eastern Aegean Sea and 34 species were shared by the two areas. The Lessepsian migrants, Upeneus moluccensis, Equulites klunzingeri, Saurida undosquamis, and the indigenous species Pagellus erythrinus were the most common species of fish assemblage in the north-eastern Levantine Sea. The most common species in the north-eastern Aegean Sea were Serranus hepatus, Mullus barbatus, Citharus linguatula, Merluccius merluccius and Lepidotrigla cavillone. Faunal composition in the north-eastern Levantine Sea was influenced by the oligotrophic, temperate and high saline water, while in the north-eastern Aegean Sea it was mainly affected by the outflow of cold, less saline and highly productive waters from the Black Sea.
The effect of relocation on the morphology of Green Turtle, Chelonia mydas (Linnaeus, 1758), hatchlings on Samandag beach, Turkey (Reptilia: Cheloniidae)
(Taylor & Francis Ltd, 2011) Sonmez, Bektas; Turan, Cemal; Ozdilek, Sukran Yalcin
We studied the impact of nest relocation in Green Turtles, Chelonia mydas (Linnaeus, 1758), on hatchling morphology at Samandag, Turkey, and examined 350 hatchlings taken equally from both natural nests and relocated nests. The nuchal, vertebral and costal series were the most variable and the supracaudal scutes were almost stable for the hatchlings in both groups. There were significant differences in all sets of nuchal, costal and marginal except vertebral seines between hatchlings from natural and relocated nests. Hatchlings from relocated nests also had a smaller straight carapace width and lower weight than hatchlings from natural nests. Furthermore, hatchlings from relocated nests had smaller left and right fore limb lengths than hatchlings from natural nests. There were significant differences between both nests in incubation duration and moisture content. Relocation thus has a negative effect on hatchling morphology and consequently on the fitness of hatchlings. The smaller size of hatchlings (with scute variations) results in reduced fitness. In spite of the relocation of nests being an important protection technique, it has a negative effect on the morphology and probably on the viability of hatchlings.
The effect of relocation on the morphology of green turtle, chelonia mydas (linnaeus, 1758), hatchlings on samandağ beach, turkey: (Reptilia: Cheloniidae)
(2011) Sönmez, Bektaç; Turan, Cemal; Özdilek, Şükran Yalçın
We studied the impact of nest relocation in Green Turtles, Chelonia mydas (Linnaeus, 1758), on hatchling morphology at Samandağ, Turkey, and examined 350 hatchlings taken equally from both natural nests and relocated nests. The nuchal, vertebral and costal series were the most variable and the supracaudal scutes were almost stable for the hatchlings in both groups. There were significant differences in all sets of nuchal, costal and marginal except vertebral scutes between hatchlings from natural and relocated nests. Hatchlings from relocated nests also had a smaller straight carapace width and lower weight than hatchlings from natural nests. Furthermore, hatchlings from relocated nests had smaller left and right fore limb lengths than hatchlings from natural nests. There were significant differences between both nests in incubation duration and moisture content. Relocation thus has a negative effect on hatchling morphology and consequently on the fitness of hatchlings. The smaller size of hatchlings (with scute variations) results in reduced fitness. In spite of the relocation of nests being an important protection technique, it has a negative effect on the morphology and probably on the viability of hatchlings. © Kasparek Verlag, Heidelberg.
Effects of dietary androstenedione concentration on growth of Tilapia fry (Oreochromis aureus linnaeus)
(Soc Israeli Aquaculture & Marine Biotechnology, 2007) Turan, Funda; Gurlek, Mevlut; Turan, Cemal
The effects of androstenedione on the growth, body composition, and survival of tilapia (Oreochromis aureus) fry were examined. Diets were supplemented by one of three androstenedione concentrations (50, 100, or 200 mg/kg) for twelve weeks. The growth rate significantly increased in fish fed 50 mg androstenedione per kg compared to the control (p<0.01) but decreased dramatically at concentrations beyond 50 mg/kg. The specific growth rate, protein efficiency ratio, and food conversion ratio were significantly better in the 50 mg/kg group than in the other groups. Crude protein and survival at all androstenedione levels did not significantly differ from those of the control but lipid content dropped with 100 mg/kg supplementation.
Elasmobranch bycatch in a bottom trawl fishery in the Iskenderun Bay, northeastern Mediterranean
(Cahiers De Biologie Marine, 2015) Yaglioglu, Deniz; Deniz, Tomris; Gurlek, Mevlut; Erguden, Deniz; Turan, Cemal
Total biomass, species composition, depth distribution, seasonal distribution and abundance of elasmobranchs were examined by commercial bottom trawls between 2009 and 2010 from Iskenderun Bay, Turkish coast of the northeastern Mediterranean. From 52 bottom trawl surveys, it was estimated that elasmobranchs represented 23% (190.1 kg.km(-2)) of total fish biomass (840.8 kg.km(-2)) in Iskenderun Bay. Dasyatis pastinaca, Gymnura altavela, Raja clavata and Rhinobatos spp. (Rhinobatos rhinobatos and Glaucostegus cemiculus) showed high occurrence and represented each between 11.10 and 38.46% of the whole elasmobranch biomass. The other species, Dipturus oxyrinchus, Raja miraletus, Torpedo marmorata and Torpedo torpedo, represented each between 0.12 and 2.82% of the total elasmobranchs biomass. Shark species, Mustelus mustelus, Scyliorhinus stellaris, Scyliorhinus canicula, Galeus melastomus and Squatina squatina, represented each between 0.45 and 1.7% of the whole elasmobranchs biomass. When seasonal distribution was examined, total catch of fish were 32.38, 23.24, 10.71 and 33.65%, of which elasmobranchs species constitute 24.11, 34.12, 20.42 and 21.34% in autumn, winter, spring and summer respectively. Single or sporadic captures were also recorded for Isurus oxyrinchus, Carcharhinus plumbeus, Carcharhinus altimus, Oxynotus centrina, Raja radula, Rhinoptera marginata and Pteromylaeus bovinus.
Examination of genetic and morphologic structure of sea-bass (Dicentrarchus labrax L., 1758) populations in Turkish coastal waters
(2005) Ergüden, Deniz; Turan, Cemal
Bu çalışmada, Türkiye denizlerinde bulunan deniz levreği (Dicentrarchus labrax) populasyonlarının genetik ve morfolojik yapısının incelenmesi amaçlanmıştır. Karadeniz, Marmara, Ege ve Kuzeydoğu Akdeniz'den eşit sayıda olmak üzere 120 birey toplanmıştır. Genetik analizde dört enzim sisteminde (G3PDH*. MDH*, ME*, PGl*) toplam dokuz losi (GSPDH-1 *, G3PDH-2*. MDH-1*. MDH-2*, MDH-3*, ME*, PGI-1*, PG1-2*, PGl-3*) incelenmiş ve bunlardan sadece 2 iosi (G3PDH-2*, PGl-3*) polimorfik olarak bulunmuştur. Dokuz losi kullanarak gerçekleştirilen Fisher'in testi sonucunda populasyonlar arasında genetik bir farklılaşma gözlenmemişti. Karadeniz ve Akdeniz örnekleri arasında Nei'nin genetik mesafe katsayısı 0.0001 olarak bulunmuştur. Genetik benzerlik katsayısı ise yine Karadeniz ve Akdeniz örnekleri arasında 0.9999 olarak bulunmuştur. Kümelerarası korelasyon analizinde populasyonlar arasında yüksek derecede morfolojik farklılıklar tespit edilmiştir. Kümelerarası korelasyon analizi sonucunda, kendi grubuna doğru olarak sınıflandırmada en yüksek, Ege Denizi (% 100) ve Karadeniz (% 97) populasyonları bulunmuştur. Birinci ve ikinci varyasyon değişkenleri grafiklendirildiğinde populasyonlar arasındaki varyasyonun % 99'u ifade edilmiş ve populasyonlar arasındaki farklılığın yüksek derecede olduğu gözlenmiştir.
EXAMINATION OF MACRO AND MICRO ELEMENTS IN PSETTA MAKSIMA AND SOLEA VULGARIS FROM THE BLACK AND NORTH EASTERN MEDITERRANEAN SEAS
(Univ Babes-Bolyai, 2019) Sangun, Mustafa Kemal; Turan, Cemal; Altun, Beyza Ersoy
The objective of this study was to determine the levels of essential (Ca, K, Na, Mg, Co, Cu, Cr, Fe, Mn) and non-essential (Al, As, Ba, Cd, Ni, Pb, Sr, Li, B) elements in the muscle, liver and skin of P. maxima and S. vulgaris. Analysis of variance was performed to determine significant differences among tissues. There were no significant differences in the metal concentrations among the tissues of both species with the exception of Fe and Li. The levels of essential metals such as Na, K, Ca and Mg were higher than 10 mg/kg; Fe and Cu were lower than 10 mg/kg. The results showed that the P. maksima and S. vulgaris are a good dietary source of essential nutrients. However, the concentrations of some nonessential metals in tissues of P. maksima and S. vulgaris exceeded the acceptable values for human consumption.
FIRST RECORD OF MARBLED STINGRAY, DASYATIS MARMORATA (ELASMOBRANCHII: MYLIOBATIFORMES: DASYATIDAE), ON THE COAST OF TURKEY, NORTH-EASTERN MEDITERRANEAN
(Wydawnictwo Akad Rolniczej W Szczecinie, 2014) Erguden, Deniz; Turan, Cemal; Gurlek, Mevlut; Uyan, Ali; Reyhaniye, Asil Nadir
Two specimens of marbled stingray, Dasyatis marmorata (Steindachner, 1892), were captured for the first time on 24-25 October 2013 in the Iskenderun Bay, located in the north-eastern Mediterranean coast of Turkey. This is the first record of D. marmorata in Turkish coastal waters and the seventh dasyatid species reported to date from the area.
FIRST RECORD OF SPOTBASE BURRFISH, CYCLICHTHYS SPILOSTYLUS (ACTINOPTERYGII: TETRAODONTIFORMES: DIODONTIDAE), FROM THE MARINE WATERS OF TURKEY
(Wydawnictwo Akad Rolniczej W Szczecinie, 2012) Erguden, Deniz; Bayhan, Yusuf Kenan; Turan, Cemal
A single adult specimen of spotbase burrfish, Cyclichthys spilostylus (Leis et Randall, 1982), was recorded for the first time on 26 December 2011 from the Mersin Bay, north-eastern Mediterranean, Turkey. This is the first record of the spotbase burrfish C. spilostylus from the marine waters of Turkey and third record on the continental shelf in the Mediterranean basin. This is the 61th record of an Indo-Pacific alien fish species present along the marine waters of Turkey.
First record of the hydrozoan Oceania armata Kolliker, 1853 from Turkey
(Taylor & Francis Ltd, 2016) Gulsahin, Nurcin; Celik, Murat; Turan, Cemal; Ates, Celal
[Abstract Not Available]
FIRST RECORD OF THE INDIAN OCEAN TWOSPOT CARDINALFISH, CHEILODIPTERUS NOVEMSTRIATUS (ACTINOPTERYGII: PERCIFORMES: APOGONIDAE), FROM TURKISH MARINE WATERS
(Pensoft Publishers, 2015) Turan, Cemal; Erguden, Deniz; Uygur, Necdet; Gurlek, Mevlut; Erdogan, Zeliha A.; Sonmez, Bektas; Uyan, Ali
Indian Ocean twospot cardinalfish, Cheilodipterus novemstriatus (Ruppell, 1838), is recorded for the first time from the Turkish marine waters. Two specimens of C. novemstriatus were sampled with a purse seiner on 1 December 2014, and also a school of C. novemstriatus was photographed during scuba diving at a depth of 13 m on a rocky surface on 8 December 2014 in the Cevlik coast, Iskenderun Bay, north-eastern Mediterranean of Turkey. With the present report, the number of alien cardinal fish species reported in the Turkish coasts has reached five.
Genetic and morphologic structure of Liza abu (Heckel, 1843) populations from the ricers orontes, Euphrates and Tigris
(2004) Turan, Cemal; Ergüden, Deniz; Turan, Funda; Gürlek, Mevlüt
Asi, Fırat ve Dicle nehirleri Liza abu populasyonları toplanan örneklerle morfolojik ve genetik olarak incelendi. Genetik karşılaştırma yapmak üzere kullanılan allo-enzim elektroforezi ve morfolojik karşılaştırma yapmak için kullanılan Truss ağı sistemi aynı örnekler üzerinde eşzamanlı olarak kullanıldı. L. abu populasyonları arasında çok önemli derecede morfolojik farklılıklar gözlendi. Morfolojik karakterler bakımından balıkların kendi orijinal grubuna doğru olarak sınıflandırılması % 100 olarak yüksek bulundu. Kümelerarası korelasyon analizinde, varyasyonların kümeleştirilmesi sonucu; Dicle stoğunün Asi ve Fırat stoklarından çok farklı olduğu gözlenmiş, Fırat stoğunün Asi ve Dicle stokları arasında bir yer aldığı, fakat Asi stoğuna daha yakın olduğu gözlenmiştir. Gözlenen fenotipik yapı, stokların coğrafik uzaklıkları ile morfolojik farklılığı arasında yakın bir ilişki olduğunu işaret etmektedir. Fakat elde edilen genetik veriler gözlenen morfolojik farklılığı desteklememektedir. Genetik analiz için 5 enzim (ICD, PGM, ME, MDH, G3PDH) sistemi (6 losi) kullanılmıştır. Kullanılan bütün losiler mbnomorfik çıktığı için populasyonlar arasında herhangi bir genetik farklılık gözlenememiştir.

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