Soheil Eagderi

University of Tehran | UT · Department of Fisheries and Environmental Sciences

The Mesopotamian spiny eel, Mastacembelus mastacembelus, an endemic freshwater fish restricted to the Euphrates and Tigris river drainages of Mesopotamian, and its related taxa in Afrotropica and South Asia present suitable elements for studies of the evolutionary history of mastacembelids across these heterogeneous areas. To understand and clarify...

The distribution of Caspian Kutum, Rutilus kutum, an economically important fish species with a limited understanding of its ecology, was investigated along the southern Caspian Sea coast to identify the environmental drivers of its occurrence. The environmental predictors including sea surface temperature, chlorophyll-a concentration, particulate...

Garra rezai, new species, is described from the Chooman, a tributary of the Lesser Zab in Iran, and from headwaters of the Yanarsu, a tributary of the upper Tigris in Turkey. It is distinguished from its congeners in the Garra variabilis species group by having two pairs of barbels, a well-developed mental disc, 35-40 total scales along the lateral...

In the present study, we studied the morphological variations in four populations of Oxynoemacheilus angorae distributed in three basins of Turkish inland waters using a geometric morphometric technique. For this purpose, a total of 55 specimens were collected from the Kızılırmak, Sakarya and Marmara basins. To extract body shape data, the left sid...

Some recent works have proposed that Capoeta ekmekciae from the Çoruh River and C. capoeta from the Kura‐Aras River system are synonyms based on molecular data, which prompted this study to compare their morphometric, meristic, and molecular data to investigate this hypothesis. Based on the results, C. ekmekciae form displays morphometric and meris...

This study provides a detailed description of osteological characters of Turcinoemacheilus saadii with an attempt to evaluate their significance for the grouping of different genera. In general, a comparative osteological analysis of T. saadii and other previously studied species of Turcinoemacheilus and the related genus Paraschistura, as well as...

The future changes in the spatial distribution and richness of 131 riverine fish species were investigated at 1481 sites in Iran under optimistic and pessimistic climate change scenarios of 2050 and 2080. The maximum entropy model was used to predict species’ potential distribution under current and future climate conditions. The hydrologic unit (H...

Cobitis indus, new species, from the Dalaman River drainage, is distinguished from other Cobitis species in the eastern Aegean Sea basin by having two laminae circularis, a bifurcate suborbital spine, a narrow caudal peduncle, pigmentation zone 4 with 17-24 small blotches often fused into a stripe, pigmentation below Z4 usually absent, and one blac...

Length-weight relationships (L-WRs) and condition factors were estimated for eight exotic fish species, including Oreochromis niloticus, Coptodon zillii, Carassius auratus, C. gibelio, Pseudorasbora parva, Gambusia holbrooki, Lepomis gibbosus, and Oncorhynchus mykiss from 10 basins of Turkish inland waters. A total of 1958 specimens were sampled in...

Oxynoemacheilus chomanicus is an endemic stone loach species in Choman River drainage distributing in its different tributies. To evaluated the morphological variation of body shape between diverse populations of this species using the geometrics morphometric technique, a total of 16 landmark points were digitized on 92 specimens collected from Ban...

This study aimed to compare the body shape of five populations of Salmo trutta collected from the Namak Lake, Urmia Lake, and the Caspian Sea basins, using the geometric morphometric technique. To this purpose, a total of 130 specimens were sampled from Liqvan-Chai, Mardoogh, Karaj, Jajrud and Haraz rivers using electrofishing. The left side of the...

Oxynoemacheilus zarzianus was described from the Lesser Zab River drainage in Iraqi Kurdistan. Here, we report this species for the first time from the Iranian part of the Sirvan River drainage based on morphological and mtDNA COI barcode sequence characters.

This study was conducted to investigate the effects of dietary BetaPlus® Ultra (BP Ultra) probiotic on fecundity, fertilization, hatching, larvae survival rates and interval times among continuous spawning in the Angel fish (Pterophyllum scalare). For this purpose, three experimental diet treatments were applied to Angel brood stocks as follow: an...

Sabanejewia is a member of the family Cobitidae found in Europe and Asia. In previous studies, S. balcanica, S. caucasica, S. aurata and S. caspia were reported from Turkey. Of these S. aurata and S. caspia were reported from the Kura-Aras Basin. We examined morphological characters and molecular data of the Sabanejewia specimens from Turkish parts...

This study aimed to provide the length–weight relations and condition factors of 34 Oxynoemacheilus species from the inland waters of Turkey: Oxynoemacheilus anatolicus Erk’akan, Özeren et Nalbant, 2008; Oxynoemacheilus angorae (Steindachner, 1897); Oxynoemacheilus argyrogramma (Heckel, 1847); Oxynoemacheilus arsaniasus Freyhof, Kaya, Turan et Gei...

Mystus cyrusi, new species, is described from the Kol River drainage which flows to the Straits of Hormuz in southern Iran. It is distinguished from its closest relative, Mystus pelusius from the Tigris-Euphrates River system by a combination of characters: The maxillary barbel short, not reaching to beyond pelvic fin (vs. extends as far as anal fi...

The present study was conducted to determine the body shape variation among the populations of Iranian goby (P. Iranicus) in the southern Caspian Sea basin using landmark-based geometric morphometrics. A total of 350 specimens of the species were sampled using electro-shocker, and in the laboratory, the left sides of the fish samples were photograp...

The present study was conducted to investigate the morphological patterns of Alburnus sellal in the sub-basins of little Zab and Sirvan rivers, Tigris river drainage using the geometric morphometric method. To this end, a total of 110 specimens (60 from the little Zab River, West Azerbaijan province, and 50 from the Sirvan River, Kurdistan province...

Functional morphological traits allow researchers to obtain fundamental information about biology, ecology and biogeography of fishes. Hence, this study was aimed to compare the morphological characteristics of different populations of Ponticola gorlap in 6 ecosystems in Iran [Tonekabon River (1), Siahrood (2), Khairud (3), Babolrood, (4), Gisum (5...

For osteological studying of Paraschistura delvarii, thirty-three specimens of this species were collected from Gharah-aghaj river in Gulf basin (Fars Provance) by electro shocker. Fish were preserve 10% formaldehyde. Osteological studies were performed on all specimens following transportation to the laboratory samples were cleared and stained. Th...

With the the support of the University of Guilan and the Iranian Society of Ichthyology, the "Ninth National and the First International Iranian Conference of Ichthyology" with the goal of exchanging ideas, synergy and updating knowledge in various areas of fish biodiversity, conservation of native fish species and protection of aquatic ecosystems...

The current status of the inland waters ichthyofauna of Iran is revised and updated. A total of 292 fish species belong to 3 classes, 24 orders, 36 families and 106 genera inhabit the inland waters of Iran. Among these, 29 species (9.9%) are exotic and 102 species (35%) are endemic. Orders with the largest numbers of species in the ichthyofauna of...

Capoeta raghazensis, new species, is described from the Raghaz Canyon, Hormuz basin, southern Iran. It is distinguished from its congeners in Iran by having one pair of barbels, a moderately ossified last unbranched dorsal-fin ray which smaller than head length; no black spots on head, body and dorsal fin; 69-77 lateral line scales; 11-13 scales be...

Schizothorax prophylax (Pietschmann, 1933) and Capoeta pestai (Pietschmann, 1933) were described from the Egirdir Lake, western Mediterranean basin and C. mauricii Küçük, Turan, Şahin & Gülle, 2009 from the Beysehir Lake, the Konya endorheic basin. This study aimed to test the synonymy hypothesis of C. mauricii and C. pestai as suggested based on p...

In this study, the length-weight relationships (LWRs) and condition factors were estimated for 445 specimens belonging to three gobiid species viz. Ponticola bathybius (Kessler, 1877), Neogobius caspius (Eichwald, 1831) and Neogobius pallasi (Berg, 1916) from the Southern Caspian Sea basin. Total length and total weight of the examined specimens ra...

In the present study, the length-weight relationships (LWRs) of 148 specimens representing four species, including 20 specimens of Pseudorhombus javanicus, 70 Plicofollis dussumieri, 28 Scarus persicus and 30 S. fuscopurpureus collected from the Persian Gulf were estimated. The LWRs equations were found as W= 0.67×L 2.23 for P. javanicus, W= 0.05×L...

Five new species of Glyptothorax are described from Iran. Glyptothorax alidaeii, new species, from the Seimare in the Karkheh drainage, G. galaxias, new species, from the upper Karun drainage, G. hosseinpanahii, new species, from the Zohreh drainage, G. pallens, new species, from the Sirvan drainage, and G. shapuri, new species, from Shapur in the...

In the present study, the development and evolution of Aphanius kavirensis ovaries during 7 months of sampling was investigated. After sampling by dip net, the samples were examined for gonad development based on morphological and histological characteristics. Tissue sections were prepared according to the usual paraffin method. The results show th...

This study was aimed to determine the length-weight relationships and Fulton’s condition factors of the genus Seminemacheilus that is endemic for Turkey. The specimens were collected from 2017 to 2019 using an electrofishing device (SAMUS 1000MP). The total length and the total weight of the examined specimens ranged from 3.5 to 9.1 cm and from 0.3...

The present study aimed to investigate the distribution status and ecological effects of the introduction of three major invasive fish species viz. Hemiculter leucisculus, Carassius auratus and Pseudorasbora parva in Iran. This review provides useful information about non-native species for readers. This research can play an important role to prote...

To investigate the role of maternal Activin-like factors in the preservation of stemness and mesendoderm induction, their effects were promoted and inhibited using synthetic human Activin A or SB-505124 treatments, respectively, before the maternal to zygotic transition (MZT). To study the role of zygotic Activin-like factors, SB-505124 treatment w...

Fish shape is influenced by variable environmental parameters and in morphological studies, the relationship between the morphological features and environmental parameters are barely investigated. Therefore, the present study aimed to investigate the body shape of Namak Whitefish (Squalius namak) being influenced from environmental factors of the...

Activin-like factors control many developmental processes, including pluripotency maintenance and differentiation. Although Activin-like factors' action in mesendoderm induction has been demonstrated in zebrafish, their involvement in preserving the stemness remains unknown. To investigate the role of maternal Activin-like factors, their effects we...

This study aimed to find morphological traits to discriminate four species of the genus Cobitis in Iran using geometric morphometric method. For this purpose, a total of 65 specimens were captured from Sefid (C. saniae), Siah (C. faridpaki), Maloosjan (C. linea) and Gamasiab (C. avicennae) rivers using electrofishing device. To extract the body sha...

Understanding the habitat preference of riverine species is important in their management to protect their habitat. This study aimed to investigate the habitat preference of the Sefid river loach, Oxynemacheilus bergianus in Jajroud River by comparing its preference in autumn and winter. For this purpose, elevation, depth, water current velocity, r...

This work was conducted to evaluate the morphological variations of eleven species of the genus Alburnoides in Iran using geometric morphometric method. For this purpose, all species were sampled from different stations of six inland water basins. After photographing from their left side, 16 landmark-points were digitized on their images using tpsD...

The study provides the first detailed evidence for the occurrence of Oxynoemacheilus cf. elsae Eagderi, Jalili & Cicek, 2018 and O. bergianus (Derjavin, 1934) in the Turkish parts of the Kura-Aras River system by reporting molecular (COI barcoding) and morphometric data. The taxonomic status of species of the genus Oxynoemacheilus Bănărescu & Nalba...

This study was conducted to provide length-weight (LWRs), length-length (LLRs) relationships and condition factor of Oxynoemacheilus seyhanensis from seven habitats belonging to three inland water basins of Turkey. A total of 166 specimens were collected from Yıldızeli, Taşköprü, Suşehri (Kizilirmak basin), Büyükpotuklu, Pınarbaşı and Örenşehir (Se...

Capoeta kosswigi was described from Lake Van basin, Turkey, being close to C. damascina and C. umbla. It is distinguished from them by a pointed snout and a small horseshoe-shaped mouth, and differing from C. damascina by having smaller scales, and from the C. umbla by processing larger scales. In this study, we tested the suggested synonymy hypoth...

In this study the morphometric and meristic characteristics of 98 specimens of Garra rufa collected from the Gamasiab, Aran, and Dinvar Rivers (Karkheh River drainage) and Bazoft and Armand rivers (Karun River drainage). The samples were transferred to the Lab after anesthesia and fixed into the buffered formalin 10%. Thirty-three morphometric and...

Iran, due to its climatic diversity, diverse freshwater ecosystems as well as long coastlines, is an important habitat for freshwater and marine fishes. So far, about three hundred species of freshwater fishes have been identified from the inland waters of Iran, about one third of which are unique to the country, that are known as endemic to Iran....

Morphological variations (morphometric and meristic traits), length-weight relationship parameters and condition factor were studied in autumn and spring populations of Alburnus chalcoides, collected from Sefid River (45 autumn and 113 spring) and Siahdarvishan (22 autumn and 28 spring) in the southern Caspian Sea basin. After anesthesia and fixati...

In this study, the length-weight relationships (LWRs) and condition factor (K) were estimated for 1334 specimens belonging to ten species including Acanthobrama marmid, A. microlepis, A. urmianus, Romanogobio persus, Leuciscus aspius, Luciobarbus capito, L. mursa, L. caspius, Alburnus atropatenae and Petroleuciscus ulanus from the Caspian Sea, Urmi...

To study the intraspecific diversity of the Caspian Asp, Leuciscus aspius in the South Caspian Sea region, Iran, we collected in 2016–2017 a total of 101 specimens from Aras River and Astara, Anzali, Kiashahr and Langeroud shores, and analysed 41 morphometric and nine meristic characteristics with multivariate statistical methods. Significant diffe...

لارو ماهیان در طی مراحل اولیه تکوین تغییرات پیچیدهاي را متحمل میشوند که در نتیجه آن تغییرات سازگاري آنها با محیط زیست بهبود مییابد. ماهی شیربت ) (Arabibarbus grypusیکی از ماهیان اقتصادي در جنوب غرب ایران به دلیل کیفیت بالاي گوشت و بازارپسندي بالا است. از این رو پژوهش حاضر به منظور بررسی روند تغییرات ریختی لارو این ماهی در مراحل اولیه تکوین تا روز 5...

The relationship between cortisol and glucose was studied in two-year old farmed Siberian sturgeon Acipenser baerii with a body weight of 340±30 g (mean ± SD) and total length of 45±1 cm from August to November 2017. Thirty-six individuals were randomly selected and stocked in some 3×300 L fiberglass tanks. Blood samples were collected monthly from...

Knowledge of environmental parameters affecting on distribution of aquatics and their realms can help maintain and correctly manage aquatic reserves. Lack of enough data on the presence of fishes in the Persian Gulf has turned into a problem. The prediction of species distribution in a large scale has become possible using the remote sensing tech...

Capoeta baliki was described from Sakarya basin, Turkey. It was distinguished from its nearest congener i.e. C. tinca based on a combination of characters, including fewer serrae along posterior margin of last simple dorsal-fin ray, modally fewer scale rows between lateral line and dorsal-fin origin, fewer vertebrae, deeper and shorter head and sle...

Geometric morphometric method was used to examine the body shape variations among the six populations of Garra rufa, in Iranian part of Tigris basin. A total of 15 landmark-points was used for 170 specimens to hypothesize population differentiation of G. rufa in the six rivers and reservoir. In discriminant function analysis, 85.9% of original grou...

In this study, for the first time, we provide morphometric and meristic data on Petroleuciscus ulanus from the Lake Urmia basin by comparing them in the populations of the Mahabad-Chai and Godar-Chai rivers. For this purpose, a total of 100 specimens were collected using electrofishing device and cast net during 2014 and 2015. 19 morphometric and 8...

Primary production is the most important functional feature of terrestrial and aquatic ecosystems affecting many processes. In this study, we integrated logistic regression and Markov chain to predict chlorophyll-a (chl-a) concentration as an index of primary production in the Caspian Sea. We categorized the continuous variable, chl-a, using quanti...

This study reports the presence of the genus Cobitis in the Zarrineh River, Urmia Lake basin, Iran. Its taxonomy is clarified and zoogeography of Urmia basin is discussed. This study provides morphological characteristics, mtDNA COI barcode sequences of the collected Cobitis specimens and analyses phylogenetic relation within the members of this ge...

The aim of this study was to investigate the global distribution of a non-indigenous and invasive fish species, the convict cichlid Amatitlania nigrofasciata, over time, with an emphasis on the inland waters of Iran. The results showed that the distribution range of the convict cichlid was initially based in Central America. Then, the distribution...

ماهیان در طی مراحل اولیه تکوین تغییرات ریختی پیچیدهای را سپری میکند که باعث بهبود شرایط فیزیولوژیکی و رفتاری آنها در جهت بقا میشود. ماهی بنی ) )Mesopotamichthys sharpeyiبهدلیل رشد مناسب، مقاومت به شرایط نامساعد محیطی و ارزش اقتصادی بالا، اهمیت بالایی برای پرورش در بین ماهیان بومی کشور دارد. بنابراین مطالعه حاضر با هدف بررسی تغییرات ریختی و الگوهای...

Habitat-associated morphological divergence of the three-spined stickleback, Gasterosteus aculeatus populations was investigated in the southern Caspian Sea basin using landmark-based geometric morphometric method to understand the population structure of this invasive species. A total of 127 specimens were collected from three stations, including...

The length-weight relationships, condition factor and morphometrics of 10 species of the genus Alburnoides are provided from Iranian inland water. The a values ranged from 0.0037 (Alburnoides damghani) to 0.0128 (Alburnoides namaki), the b values ranged from 2.87 (A. namaki) to 3.50 (A. damghani) and the coefficient of variation (r2) ranged from 0....

Among cyprinid family, little information is available about the phylogenetic relationships of the members of genus Garra in Iran. The structure of caudal skeleton as a valuable source in taxonomic studies of fishes can help to determine their systematic position. Hence, this study was conducted to compare the osteological features of caudal fin sk...

A new bitterling from the Rhodeus amarus group is described based on morphological and molecular data. Rhodeus caspius sp. nov. from the Caspian Sea, Urmia Lake and the upper Tigris River drainages in Iran, is distinguished from its closest congeners (R. amarus and R. colchicus) by having short post-dorsal distance and caudal peduncle length and lo...

This study was conducted to investigate the morphological variation between seven populations of Oxynoemacheilus seyhanensis inhabiting three basins of Turkish inland waters. For this purpose, a total of 71 specimens were collected from Yildizeli, Taşköprü, Suşehri rivers (Kizilirmak basin), Büyükpotuklu, Pinarbaşi and Örenşehir rivers (Seyhan basi...

The present study was conducted in Electric Blue Cichlid Sciaenochromis fryeri in early larval developmental stages from the fifth day post hatching (DPH) until 51 DPH to determine day of transforming from embryo to juvenile. Morphological characteristics were evaluated by using ImageJ software. Allometric growth patterns were calculated based on t...

To describe the osteological structure of the Garra rossica, ten specimens were collected from the Mashkid Basin, Iran. After fixation into 10% buffered formalin, they were cleared and stained for osteological examination. Then its detailed osteological description was provided and compared with the available congeners in the genus Garra and other...