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This is an annotated checklist of all recognized and named taxa of freshwater fishes of Iran, documenting recent changes and controversies in nomenclature, and including primary synonyms, updated from the Jouladeh-Roudbar et al. (2015b) checklist. We provide an updated comprehensive listing of taxonomy, diagnostic and meristic characters, names, an...
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A lack of an updated checklist of freshwater fish species from Lake Dongting is a big hindrance to further biodiversity analysis. A seasonal survey of fishes in the lake was conducted from October 2017 to January 2019. Based on the data obtained during the field survey and coupled with known literature and the latest taxonomic development of releva...
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... Fish sampling activities spanned across all Iranian basins from 2005 to 2022 (Jouladeh- Roudbar et al., 2015Roudbar et al., , 2017, employing a range of methods including the backpack electro-fisher (Samus 1000), hand nets, gill nets, and casting nets. Upon collection, fish specimens were meticulously identified at the collection sites, facilitated by a diagnostic key developed by Jouladeh-Roudbar et al. (2020). Following identification and thorough recording of data, the fish were thoughtfully released back into their natural habitats, ensuring minimal disruption to their ecosystems. ...
Freshwater ecosystems are experiencing accelerating global biodiversity loss. Thus, knowing where these unique ecosystems' species richness reaches a peak can facilitate their conservation planning. By hosting more than 290 freshwater fishes, Iran is a major freshwater fish hotspot in the Middle East. Considering the accelerating rate of biodiversity loss, there is an urgent need to identify species‐rich areas and understand the mechanisms driving biodiversity distribution. In this study, we gathered distribution records of all endemic freshwater fishes of Iran (85 species) to develop their richness map and determine the most critical drivers of their richness patterns from an ecoregion approach. We performed a generalized linear model (GLM) with quasi‐Poisson distribution to identify contemporary and historical determinants of endemic freshwater fish richness. We also quantified endemic fish similarity among the 15 freshwater ecoregions of Iran. Results showed that endemic freshwater fish richness is highest in the Zagros Mountains while a moderate level of richness was observed between Zagros and Alborz Mountains. High, moderate, and low richness of endemic freshwater fish match with Upper Tigris & Euphrates, Namak, and Kavir & Lut Deserts ecoregions respectively. Kura – South Caspian Drainages and Caspian Highlands were the most similar ecoregions and Orumiyeh was the most unique ecoregion according to endemic fish presence. Precipitation and precipitation change velocity since the Last Glacial Maximum were the most important predictors of endemic freshwater fish richness. Areas identified to have the highest species richness have high priority for the conservation of freshwater fish in Iran, therefore, should be considered in future protected areas development.
... However, the molecular and morphological data show that the species belongs to the genus Alburnus (Freyhof et al., 2018). The fourth one, Leuciscus ulanus Günther 1899, was described from Ula on the Zola Chai (Lake Urmia basin) (Jouladeh-Roudbar et al. 2020). The species was moved to the genus Squalius (Doadrio and Carmona, 2006) and then to the Petroleuciscus (Bogutskaya, 2002). ...
The genus Petroleuciscus was known from the Marmara, Aegean, and Black Sea drainages, as well as southeast Anatolia and Iran. However, studies conducted in recent years have suggested that the species described in southeast Anatolia and Iran belong to different genera. The results and recommendations of these studies were evaluated. On the other hand, in the scope of this study, the taxonomic status and length-weight relationship of several Petroleuciscus ninae populations in Western Anatolia were evaluated. The morphological comparisons revealed that Tahtalı Reservoir, Küçük Menderes and Sarıçay rivers, and Acıgöl Lake`s Petroleuciscus populations recorded as Petroleuciscus smyrnaeus in all previous studies belong to P. ninae which was known only from the type locality Akçay Stream. In addition, the length-weight relationship of P. ninae in the lakes Akgöl and Belevi, Lake Acıgöl, stream Akçay, Sarıçay River, an inflow of Yenişehir Reservoir and inflow of Tahtalı Reservoir were studied. The following research considers some first records and comprehensive information on the length-weight relationship of P. ninae in the Western Anatolia water resources. In study, the constant b changed from 3.101 to 3.389 (Akçay Stream) in all the sampling locations. It is expected that the results of this research might support the conservation of this species and contribute knowledge of its taxonomic status.
... The family Nemacheilidae is very diverse (Kottelat 2012;Çiçek et al. 2018, 2020Jouladeh-Roudbar et al. 2020). It is distributed in the freshwaters in Asia, Europe, and north-eastern Africa (Nelson et al. 2016). ...
In the scope of this study, fish fauna of Küçük Menderes River and its tributaries, updated with the comparison of the recent ichthyofaunal studies, as well as the length-weight relations (LWR) and condition factors (CF) were estimated for 7 freshwater fish species belonging to six families from the river basin: endemic Oxynoemacheilus eliasi, Cobitis fahireae; invasive, Carassius gibelio, Atherina boyeri, transloce Perca fluviatilis and the native Squalius fellowesii, Cyprinus carpio. The fish samples were collected with various fishnets and DC electro-fishing devices from six stations in 2018 and 2019. The LWR of the fishes was studied based on 379 specimens. The estimated values of parameter b ranged from 2.884 (A. boyeri) to 3.176 (C. fahireae). The coefficient of determination (R2) was changed between 0.792 to 0.980 for all sampling localities. In the study, Fulton’s condition factor ranged between 0.391 (S. fellowesii) to 3.080 (S. fellowesii); the relative condition factor ranged between 0.346 (O. eliasi) to 2.746 (S. fellowesii), respectively. This research is anticipated to contribute valuable insights for the conservation of the species, while also furnishing essential data to inform future fisheries management studies in the region.
... The first record of the genus in Iran identified the Sezar population as T. kosswigi [3]. Consequently, all Western Asia records were assigned to T. kosswigi [3][4][5][6]. Morphometric characteristics were examined through a Correspondence Analysis (CA) and compared using a Non-Parametric Multivariate Analysis of Variance (NPMANOVA). The analysis involved Bonferroni-corrected p-values, determined through a permutation test with 1000 replicates in PAST software (version 2.14). ...
... It is further distinguished from T. minimus by possessing a deeper caudal peduncle (6-7 vs. 9-10% SL), a deeper head (47-58 vs. 37-47% HL), and 5-6 mandibular pores in the mandibular canal (vs. [4][5]. This species can be distinguished from T. ekmekciae by often having 7½ branched rays (vs. ...
Nemacheilid fishes in the genus Turcinoemacheilus are physically small members of the ichthyofauna communities of high-altitude and mountainous freshwater ecosystems. They are all distributed in Western Asia apart from a single species, described in the Himalayas. They are usually very similar in appearance, which complicates their proper identification and/or description. This is why it is important to use multidisciplinary and integrative taxonomical approaches in order to study their true diversity. In this study, three new species of Turcinoemacheilus are described from Iran, raising the total number of valid species to nine. Turcinoemacheilus ansari new species, is distinguished by the anus being situated behind the midpoint of the pelvic-fin and anal-fin origins and the short anal-fin base length. Turcinoemacheilus christofferi new species, differs by the anus being situated behind the midpoint of the pelvic-fin and anal-fin origins, with a complete lateral line reaching to the anterior part of the caudal fin. Turcinoemacheilus moghbeli new species, is distinguished by the anus being situated at or in front of the midpoint of the pelvic-fin and anal-fin origins, with a great pre-pelvic distance and a caudal peduncle length 1.5-2.3 times its length. In Western Asia, all Turcinoemacheilus species are well separated by molecular characters, showing between 3.6 and 14.1% uncorrected p genetic distances in the COI barcode region. This work shows the importance of studying the hidden diversity of under-sampled and understudied groups of organisms to have a clear image of true biodiversity in order to effectively conserve and protect it.
... We used species detection curves to affirm the adequacy of sampling (Appendix A) [65]. The fish sampling effort at each site was approximately 90 ± 20 min [48,64]. Although this standardization does not prevent methodological differences in fishing efficiency at different sites with consequences on the dataset, we chose this procedure as the best compromise. ...
We assessed the distribution of alien fishes in the Karun River Basin, Iran. Fish were collected from 39 sites during the November–December 2018 low-flow period. In total, 39 fish species from nine orders and 14 families were documented. Among these, 10 species were alien to the basin (986 individuals; 15.7%). Four species were the most abundant alien species and primarily in impounded, downstream reaches. Redundancy analysis (RDA) was conducted to identify the extent of changes in alien fish assemblages with environmental parameters. RDA1 and RDA2 accounted for 36.24% and 25.33% of the variation of alien species, respectively. Altitude, depth, electrical conductivity, water temperature, turbidity, dissolved oxygen, and river width were the most significant parameters affecting alien species distributions. We present a dual-pathway cause-and-effect hypothesis proposing that alien fish species presence causes declines in the ecological status of native fish communities. We then explore how human-induced aquatic ecosystem degradation creates opportunities for alien species to invade new ecosystems, further impacting native fish communities. Our study contributes insight into the cause and effect of the presence of alien fish species in the Karun River Basin and emphasizes the urgency of conservation measures to protect this critically endangered watershed.
... The preservation of our fish populations is essential since many fishermen depend on them for their livelihood. However, there are real threats to the environment and biodiversity sustainability in freshwater situations across the planet [6]. ...
In the Sandha river of Bangladesh, we investigated the temporal and geographical fluctuation in species of fish composition and diversity. The extent of our understanding of the fish variety in this river varies greatly on both a temporal and a geographical scale. From July 2021 to June 2022, fish specimens were gathered from five stations using various conventional fishing methods. During the study period, 5118 individuals from 67 species were collected which include 8 orders, 24 families, and 54 genera. Cypriniformes made up the majority of the order (32.84%), whereas Beloniformes and Tetraodontiformes made up the least number of species (1.49% each). Six species were listed as endangered (8.96%), seven as vulnerable (10.45%), nine as near threatened (13.43%), forty-three as least concern (64.18%), one with data deficient (1.49%), and one as not evaluated (1.49%) in Bangladesh. In order to quantify the temporal and geographical changes in community composition, diversity indices were calculated and put to use. Three (temperature, humidity, and rainfall) out of the four environmental factors (temperature, humidity, rainfall, and photoperiod) had a big impact on how species were distributed. At a similarity level of 79% and 75.5% separation, 2 substantial clusters were seen in the case of stations and 2 large clusters were detected in the case of months, respectively. However, at a similarity threshold of 20% separation, three different groups of fish species were found. Our research offers the most recent status data on fish distribution in the Sandha river. The knowledge acquired from this research is crucial for creating protection and management plans that will promote the long-term viability of fishery resources in the Sandha river and its nearby coastal tributaries.
... Species of Garra are found in fast-flowing waters such as streams and rivers, but also in lakes, springs, and caves (Krupp and Schneider 1989;Zamani-Faradonbe and Keivany 2021). Cyprinidae with more than 63 confirmed species is the most diverse family in Iranian inland freshwater (Jouladeh-Roudbar et al. 2020). In Iran, 11 Garra species are known from freshwater basins (Esmaeili et al. 2016(Esmaeili et al. , 2017Zamani-Faradonbe and Keivany 2021). ...
We report the first finding of the stygobiotic form of the cyprinid fish Garra rufa (Heckel, 1843), discovered in a single locality in southwestern Iran, while the epigean form of the species is widely distributed in western Asia (Iran, Jordan, Lebanon, Turkey, and Syria). We also report a new locality for its hypogean
congener, Garra tashanensis, about 5 km east of its type locality. The two species occur in syntopy in outflows of the Tang-e-Ban, a seasonal karstic spring that only has flowing water during winter and spring, when fish individuals are washed from the cave to the surface. Identification of the investigated samples was confirmed by morphological analyses, COI distances, and a phylogenetic tree. These findings suggest the existence of a large karst aquifer in the Tashan area that harbours several cave species of fish, crustaceans, and gastropods and may have considerable conservation implications.
... FIGURE 1. Distribution of Glossogobius cf. giuris (red lines: Jagin and the Sarbaz-Kaju-Bahu Kalat river system) in the Makran River System (grey area), north-western Indian Ocean based on Jouladeh-Roudbar et al. (2020). Sampling sites along the Sarbaz River: 1, Pishin Dam; 2, Jakigur; 3, near Rask; 4, Sarbaz. ...
... Coad (2016) has stated that Glossogobius giuris is recorded from the Hormuz and Makran River systems of Iran, whereas he only presents material form the Sarbaz-Kaju-Bahu Kalat River system. More precisely, Jouladeh-Roudbar et al. (2020) has mapped its distribution in the Jagin and Sarbaz-Kaju-Bahu Kalat rivers of Makran and consider its distribution in the Hormuz basin as questionable. During ichthyological surveys in southern Iran, we were able to collect specimens of Glossogobius from the Sarbaz River, Makran River System. ...
The Indo-West Pacific Glossogobius giuris (Hamilton, 1822) species complex has four spatially circumscribed independent lineages, partially taxonomically resolved. A sample of gobies from the G. giuris species complex was recently collected from the Makran River System, south-eastern Iran, which drains into the northern Oman Sea. The taxonomic status of this population was clarified using a molecular and morphological framework. Molecular and morphological data both revealed that the examined sample from the Makran River System is conspecific with G. giuris B which is widely distributed in the coastal habitats and basins of the Indian Ocean. In addition, consensus from different molecular species delimitations, K2P genetic distance, and tree topologies confirmed the four lineages of the G. giuris species complex as distinct taxonomic entities, hereby highlighting the necessity of an integrative morphological and molecular approach to complete the clarification of taxonomic diversity within this group. Glossogobius giuris species complex taxonomy is discussed and solution recommended.
... In the Volga River, it spawns in very small numbers; here, its spawning migrations are limited by the delta (Berg, 1949). The Caspian vimba is characterized by the absence of resident forms in freshwater bodies (Demin, 1962;Kuliev, 1988;Jouladeh-Roudbar et al., 2020), plasticity in choosing spawning substrate (stony or vegetation one) (Berlyand, 1953;Abdurakhmanov, 1962;Barkhalov, 2014), and a small size. The growth rate of Caspian vimba is relatively low and the weight of the largest individuals is about 0.4 kg (Biologiya…, 1970;Gadzhiev et al., 2003;Chaichi et al., 2011;Rahmani et al., 2011). ...
This paper provides data on the occurrence of vimba bream (Vimba vimba) in the middle reaches
of the Ural River. One of the distinguishing features of this species from the native Caspian vimba (V. persa)
is a greater number of scales in the lateral line. In the late 1980s, vimba bream was introduced from the Don
River basin into the Volga River basin. Having successfully adapted in the Volgograd Reservoir, the species
subsequently colonized the unregulated area of the Lower Volga and the northern and, apparently, middle
parts of the Caspian Sea and formed a stable residential population in the Ural River basin.
... Due to wide geographical distribution and allopatric isolation of brown trout alongside with their morphologic and ecologic variations, natural and/or human-caused hybridization the taxonomy level of salmo trouts has been under challenge [2]. Based on the latest reported check list on Iranian fresh water fish species, there are two species of Salmonidae in the southern basin of the Caspian Sea, namely Salmo trutta Linnaeus, 1758 (river resident) and Salmo caspius Kessler, 1877 (searun) which was mostly supported through morphologic approaches [3,4]. Having said that, recently published papers using simultaneous genomics and mtDNA information suggested that all populations of brown trout in the south and south-west of the Caspian Sea should be identified as S. caspius [5][6][7]. ...
Salmo caspius Kessler, 1877 is one of the most commercially important species of Salmonidae in the southern basin of the Caspian Sea. The occurrence of its wild populations has undergone sever reduction during the last years. In spite of the yearly restocking activity, still no progress on the recovery of its wild population has been observed. Hence, the present study was done in order to assess the efficiency of the current restocking activity in the southern Caspian basin in term of genetic diversity. DNA extracts of 32 S. caspius from four different groups were screened using 62621 genome-wide single nucleotide polymorphisms (SNP). The overal genetic diversity and Fst values were 0.18 and 0.08, respectively. Considering the observed admixture pattern and the positive values for inbreeding coeficient it seems that S. caspius suffers from its small effective population size. In order to obtain the maximum performance, alonside with expanding the size of brood stocks, rehabilitation of the habitats and spawning rivers of this nationally endangered species is of great importance.
