Glossogobius giuris was originally described as Gobius giuris from the Ganges River, India. Howev... more Glossogobius giuris was originally described as Gobius giuris from the Ganges River, India. However, based on the uncertainty of its type locality and its apparent widespread distribution, a comprehensive study is being carried out to define the correct taxonomic status of this taxon. The South African population of the Glossogobius from St. Lucia Lake, KwaZulu-Natal was described as Glossogobius tenuiformis by Fowler in 1934. It has usually been considered as Glossogobius giuris but Hoese and Hammer indicated that it was a distinct species (2021: 83). Here, based on morphological characters and a molecular data set, we redescribe Glossogobius tenuiformis and assign the Oman populations of Glossogobius to this species. Glossogobius tenuiformis is distinguished from G. giuris by the absence or very short (and often only a few papillae long) sensory papilla line 6; presence of single rows of the sensory papillae in each cheek line, 12–16 pre-dorsal scale counts, and 1+1+9–11, usually ...
<i>Oxynoemacheilus frenatus</i> (Heckel, 1843) (Figs. 10–11, Table 6)<i>Cobitis... more <i>Oxynoemacheilus frenatus</i> (Heckel, 1843) (Figs. 10–11, Table 6)<i>Cobitis frenata</i> Heckel, 1843 ZM-CBSU H2316, 15, 48–66 mm SL.; Iran: West Azerbaijan Prov.: Little Zab River a place between Piranshahr and Sardasht, 31°11'12" N51°16'16" E.The type locality of <i>Cobitis frenata</i> is "Tigris", presumably at Mosul (Heckel 1843). Five syntypes are in the Naturhistorisches Museum Wien (NMW 48552) (Fig. 10). Freyhof <i>et al</i>. (2011) as well as Freyhof &amp; Özuluð (2017) treated <i>O</i>. <i>afrenatus</i> as a synonym of <i>O</i>. <i>frenatus</i>, and then identified fishes from the upper Tigris in Turkey as <i>O</i>. <i>frenatus</i>. <i>Oxynoemacheilus afrenatus</i> was described from small tributaries to the Tigris around the Turkish city of Diyarbakýr about 400 km upstream from Mosul. Here, we found an oxynoemacheilid population from the Lesser Zab River drainage in Iran with an incomplete lateral line, reaching to a vertical between the pectoral-fin tip and the anal-fin origin and a mottled flank pattern without bars or large, vertically elongated blotches on the caudal peduncle and the prominent dark-brown stripe between the snout and the eye. These characters are also common in the syntypes of <i>O</i>. <i>frenatus</i> (Fig. 10). Until 2014, oxynoemacheilid fishes from the Greater and Lesser Zab River drainages were identified as <i>O</i>. <i>argyrogramma</i> and <i>O</i>. <i>frenatus</i>. Kamangar <i>et al</i>. (2014) then described three species, <i>O</i>. <i>chomanicus</i>, <i>O</i>. <i>kurdistanicus</i><i>,</i> and <i>O</i>. <i>zagrosensis</i> from the Choman River, a headwater stream of the Lesser Zab in the Iranian part of Kurdistan. Freyhof &amp; Geiger (2017) following Kamangar <i>et al</i>. (2014), identified <i>O</i>. <i>argyrogramma</i> collected in the Iraqi part of the Lesser Zab as <i>O</i>. <i>kurdistanicus</i>. Freyhof &amp; Geiger (2017) also considered the identified <i>O</i>. <i>frenatus</i> as <i>O</i>. <i>chomanicus</i>. The newly discovered population of <i>O</i>. <i>frenatus [...]
This checklist aims to list all the reported Iranian inland fishes. It lists 297 species in 109 g... more This checklist aims to list all the reported Iranian inland fishes. It lists 297 species in 109 genera, 30 families, 24 orders and 3 classes reported from different Iranian basins. However, presence of 23 reported species in Iranian waters needs confirmation by specimens. The most diverse order is Cypriniformes (176 species, 59.3%), followed by Gobiiformes (42 species, 14.1%), Cyprinodontiformes (19 species, 6.4%), and Clupeiformes (11 species, 3.7%). Ninety-five endemic species (32%) in 7 families and 29 exotic species (9.76%) in 11 families are listed here.
Phylogeographic pattern, genetic diversity, and historical demography of the endemic loach, Oxyno... more Phylogeographic pattern, genetic diversity, and historical demography of the endemic loach, Oxynoemacheilus persa, sampled from the endorheic Kor River and exorheic Persis basins in southern Iran, were analyzed using D-loop sequences of mitochondrial DNA. The sequence analysis of 53 specimens detected six haplotypes; all were related closely, yet some were highly localized. Hap_2 with high frequency was restricted to the Persis basin. The ancestral haplotype, Hap_1, was broadly distributed geographically among the Kor River basin populations. The rest of the haplotypes were shared between two populations from the Kor River basin (Hap_4 and Hap_5) or restricted to one of its populations (Hap_3 and Hap_6). AMOVA showed that 42.28% of total variation was related to differences among the basins, while inter- and intra-population differences explained 16.8% and 40.91%, respectively. The Mantel test indicated that the levels of genetic resemblance between populations are moderately dependent on geographic distance (r = 0.669, p = 0.008). All these clues imply that the Kor River and Persis basin populations of O. persa may qualify as two distinct management units. The implication is that contemporary gene flow among these basins has been low enough to have permitted lineage sorting and random drift to promote genetic divergence among these basins that nonetheless were in historical contact recently. The close phylogenetic relationships among other fishes, their previously inferred recent ages of divergence, and the patterns of affinity among them in the Persis and Kor River basins all suggest that these now isolated river systems were interconnected during the Last Glacial Maximum by a Paleo-Kor River and remained so until the sea-level rise of the Early Holocene.
Summary Length–weight parameters were estimated for nine nemacheilid fish of the genus Paraschist... more Summary Length–weight parameters were estimated for nine nemacheilid fish of the genus Paraschistura from Iran. Significant length–weight relationships with high correlation coefficients were found for all studied species.
The Iranian species of Paraschistura are reviewed, and diagnoses are presented for all eleven rec... more The Iranian species of Paraschistura are reviewed, and diagnoses are presented for all eleven recognized species. Paraschistura bampurensis, P. cristata, P. kessleri, P. nielseni and P. turcmenica are considered valid; P. sargadensis is a synonym of P. kessleri and P. turcomanus is a synonym of P. turcmenica. Six new species are described. Para-schistura abdolii, new species, from the Sirjan basin and the western tributaries of the Hamun-e Jaz Murian basin is distinguished by having a very slender body and scales restricted to the caudal peduncle and to the back in front of the dorsal-fin origin in few individuals. Paraschistura aredvii, new species, from the Zohreh drainage, is distinguished by having scales on the back, no suborbital flap and the pelvic-fin origin posterior to the dorsal-fin origin. Paraschistura hormuzensis, new species, from the Minab drainage, is distinguished by having scales on the back, a pointed snout and a triangular suborbital flap in males. Paraschistura...
To evaluating population dynamics and stock assessment of Persian loach, Oxynoemacheilus persa, 1... more To evaluating population dynamics and stock assessment of Persian loach, Oxynoemacheilus persa, 196 specimens (with total length of 25.46mm to77.24mm) were captured from Kor river Basin, Fars province, Iran, during 2011-2012. The mean annual water temperature was 16.76C˚. Analyses showed a significant relationship between fork length and weight of Persian loach which can be shown as W=0.000006 FL3.231. The ultimate length (L∞) and the growth coefficient (K) were 80mm and 0.38 respectively. Total mortality (Z=1.34), natural mortality (M=0.47), fishing mortality (F=0.77), exploitation coefficient (E=0.57) and Phi-Prime (Φ’=7.79) were also estimated. The results are given for the first time for Persian loach and could be applied for conservation programs of this endemic species in Iran.
Paracobitis hircanica, new species, from the Gorgan River drainage in the southeastern Caspian Se... more Paracobitis hircanica, new species, from the Gorgan River drainage in the southeastern Caspian Sea basin, is distinguished from other species of the genus occurring in the Middle East by the combination of the absence of scales on the body, a moderate to deeply emarginate caudal fin, a fine marbled or vermiculate brown colour pattern on the flank, and dark-brown caudal-fin rays with a hyaline anterior and distal margin.
ABSTRACT Paracobitis atrakensis, new species, from the Atrak and Bidvaz River drainages in northe... more ABSTRACT Paracobitis atrakensis, new species, from the Atrak and Bidvaz River drainages in northeastern Iran, is distinguished from other species in the genus occurring in the Middle East by the combination of having a truncate or slightly emarginated caudal fin and no scales on the body, except for few scales on the dorsal adipose crest in some in-dividuals.
Three new species of Turcinoemacheilus are described from Iran and Turkey raising the number of s... more Three new species of Turcinoemacheilus are described from Iran and Turkey raising the number of species in this genus to six, five of them in the Middle East. Turcinoemacheilus bahaii, new species, from the Zayandeh River in Iran is distinguished by having the anus situated in a posterior position and a dark brown blotch on each side of the anal-fin base in both sexes. Turcinoemacheilus minimus, new species, from the upper Euphrates drainage in Turkey is distinguished by having the anus situated in an anterior position, a slender and long caudal peduncle and a very small maximum size (up to 38 mm SL). Turcinoemacheilus saadii, new species, from the Karoun drain-age in Iran is distinguished by having the anus situated in an anterior position and an unique colour pattern of large dark brown saddles. In the Middle East, all Turcinoemacheilus species are well distinguished by molecular characters and show between 5.3 and 8.5 % K2P sequence divergence in their COI barcode region.
Garra is the most species-rich genus of freshwater fishes in the Arabian Peninsula, including Oma... more Garra is the most species-rich genus of freshwater fishes in the Arabian Peninsula, including Oman, which has eight recognized, species restricted mainly to the Hajar and Dhofar mountains. Garra species from the Dhofar region in Oman are reviewed based on integrated morphological and molecular (COI) data of newly collected fishes from the type localities of G. sindhae and G. smartae, and a new population from Wadi Laggashalyon. No diagnostic character was found to distinguish the two species and the Laggashalyon population as distinct taxa. Garra dunsirei, another species endemic to a sinkhole at Tawi Attair, a very difficult area to access at a depth of about 211 m, was examined here based on the GenBank data and the diagnostic characters given in the original descriptions of the studied Garra species. In addition, the phylogenetic tree placed the sequenced Omani Garra fishes into nine groups with K2P sequence divergence of 0.8% (G. smartae and G. smartae_Laggasaylon); 1.2% (G. sma...
The Lernaea parasite was reported in Alburnus hohenackeri Kessler, 1870, collected from the Char-... more The Lernaea parasite was reported in Alburnus hohenackeri Kessler, 1870, collected from the Char-Nimeh (or Chahnimeh) lake, Eastern Iran. Three fishes were infected with L. intestinalis having 3 to 22 parasites increasing with fish size. The maximum and minimum of parasite lengths were 138.02 mm and 24.54 mm respectively. The prevalence, mean intensity and abundance of infection by plerocercoid of L. intestinalis were 33.33%, 13.33, and 4.44 respectively.
Occurrence of Lernaea parasite in a narrow distributed endemic fish, Chondrostoma orientale (Orie... more Occurrence of Lernaea parasite in a narrow distributed endemic fish, Chondrostoma orientale (Oriental nase) restricted to the Kor river basin, Southwestern Iran is reported. Based on the obtained results, all three collected specimens (TL= 174-192mm, SL= 148-169mm) were infested with Lernaea parasites which were attached to the base of dorsal, pectoral, caudal and pelvic fins and also body muscles. The prevalence and intensity of parasite was 100% and 10.3, respectively. Due to effects of Lernaea , a long term monitoring of the parasites and fishes in the Kor River basin is highly recommended.
Glossogobius giuris was originally described as Gobius giuris from the Ganges River, India. Howev... more Glossogobius giuris was originally described as Gobius giuris from the Ganges River, India. However, based on the uncertainty of its type locality and its apparent widespread distribution, a comprehensive study is being carried out to define the correct taxonomic status of this taxon. The South African population of the Glossogobius from St. Lucia Lake, KwaZulu-Natal was described as Glossogobius tenuiformis by Fowler in 1934. It has usually been considered as Glossogobius giuris but Hoese and Hammer indicated that it was a distinct species (2021: 83). Here, based on morphological characters and a molecular data set, we redescribe Glossogobius tenuiformis and assign the Oman populations of Glossogobius to this species. Glossogobius tenuiformis is distinguished from G. giuris by the absence or very short (and often only a few papillae long) sensory papilla line 6; presence of single rows of the sensory papillae in each cheek line, 12–16 pre-dorsal scale counts, and 1+1+9–11, usually ...
<i>Oxynoemacheilus frenatus</i> (Heckel, 1843) (Figs. 10–11, Table 6)<i>Cobitis... more <i>Oxynoemacheilus frenatus</i> (Heckel, 1843) (Figs. 10–11, Table 6)<i>Cobitis frenata</i> Heckel, 1843 ZM-CBSU H2316, 15, 48–66 mm SL.; Iran: West Azerbaijan Prov.: Little Zab River a place between Piranshahr and Sardasht, 31°11'12" N51°16'16" E.The type locality of <i>Cobitis frenata</i> is "Tigris", presumably at Mosul (Heckel 1843). Five syntypes are in the Naturhistorisches Museum Wien (NMW 48552) (Fig. 10). Freyhof <i>et al</i>. (2011) as well as Freyhof &amp; Özuluð (2017) treated <i>O</i>. <i>afrenatus</i> as a synonym of <i>O</i>. <i>frenatus</i>, and then identified fishes from the upper Tigris in Turkey as <i>O</i>. <i>frenatus</i>. <i>Oxynoemacheilus afrenatus</i> was described from small tributaries to the Tigris around the Turkish city of Diyarbakýr about 400 km upstream from Mosul. Here, we found an oxynoemacheilid population from the Lesser Zab River drainage in Iran with an incomplete lateral line, reaching to a vertical between the pectoral-fin tip and the anal-fin origin and a mottled flank pattern without bars or large, vertically elongated blotches on the caudal peduncle and the prominent dark-brown stripe between the snout and the eye. These characters are also common in the syntypes of <i>O</i>. <i>frenatus</i> (Fig. 10). Until 2014, oxynoemacheilid fishes from the Greater and Lesser Zab River drainages were identified as <i>O</i>. <i>argyrogramma</i> and <i>O</i>. <i>frenatus</i>. Kamangar <i>et al</i>. (2014) then described three species, <i>O</i>. <i>chomanicus</i>, <i>O</i>. <i>kurdistanicus</i><i>,</i> and <i>O</i>. <i>zagrosensis</i> from the Choman River, a headwater stream of the Lesser Zab in the Iranian part of Kurdistan. Freyhof &amp; Geiger (2017) following Kamangar <i>et al</i>. (2014), identified <i>O</i>. <i>argyrogramma</i> collected in the Iraqi part of the Lesser Zab as <i>O</i>. <i>kurdistanicus</i>. Freyhof &amp; Geiger (2017) also considered the identified <i>O</i>. <i>frenatus</i> as <i>O</i>. <i>chomanicus</i>. The newly discovered population of <i>O</i>. <i>frenatus [...]
This checklist aims to list all the reported Iranian inland fishes. It lists 297 species in 109 g... more This checklist aims to list all the reported Iranian inland fishes. It lists 297 species in 109 genera, 30 families, 24 orders and 3 classes reported from different Iranian basins. However, presence of 23 reported species in Iranian waters needs confirmation by specimens. The most diverse order is Cypriniformes (176 species, 59.3%), followed by Gobiiformes (42 species, 14.1%), Cyprinodontiformes (19 species, 6.4%), and Clupeiformes (11 species, 3.7%). Ninety-five endemic species (32%) in 7 families and 29 exotic species (9.76%) in 11 families are listed here.
Phylogeographic pattern, genetic diversity, and historical demography of the endemic loach, Oxyno... more Phylogeographic pattern, genetic diversity, and historical demography of the endemic loach, Oxynoemacheilus persa, sampled from the endorheic Kor River and exorheic Persis basins in southern Iran, were analyzed using D-loop sequences of mitochondrial DNA. The sequence analysis of 53 specimens detected six haplotypes; all were related closely, yet some were highly localized. Hap_2 with high frequency was restricted to the Persis basin. The ancestral haplotype, Hap_1, was broadly distributed geographically among the Kor River basin populations. The rest of the haplotypes were shared between two populations from the Kor River basin (Hap_4 and Hap_5) or restricted to one of its populations (Hap_3 and Hap_6). AMOVA showed that 42.28% of total variation was related to differences among the basins, while inter- and intra-population differences explained 16.8% and 40.91%, respectively. The Mantel test indicated that the levels of genetic resemblance between populations are moderately dependent on geographic distance (r = 0.669, p = 0.008). All these clues imply that the Kor River and Persis basin populations of O. persa may qualify as two distinct management units. The implication is that contemporary gene flow among these basins has been low enough to have permitted lineage sorting and random drift to promote genetic divergence among these basins that nonetheless were in historical contact recently. The close phylogenetic relationships among other fishes, their previously inferred recent ages of divergence, and the patterns of affinity among them in the Persis and Kor River basins all suggest that these now isolated river systems were interconnected during the Last Glacial Maximum by a Paleo-Kor River and remained so until the sea-level rise of the Early Holocene.
Summary Length–weight parameters were estimated for nine nemacheilid fish of the genus Paraschist... more Summary Length–weight parameters were estimated for nine nemacheilid fish of the genus Paraschistura from Iran. Significant length–weight relationships with high correlation coefficients were found for all studied species.
The Iranian species of Paraschistura are reviewed, and diagnoses are presented for all eleven rec... more The Iranian species of Paraschistura are reviewed, and diagnoses are presented for all eleven recognized species. Paraschistura bampurensis, P. cristata, P. kessleri, P. nielseni and P. turcmenica are considered valid; P. sargadensis is a synonym of P. kessleri and P. turcomanus is a synonym of P. turcmenica. Six new species are described. Para-schistura abdolii, new species, from the Sirjan basin and the western tributaries of the Hamun-e Jaz Murian basin is distinguished by having a very slender body and scales restricted to the caudal peduncle and to the back in front of the dorsal-fin origin in few individuals. Paraschistura aredvii, new species, from the Zohreh drainage, is distinguished by having scales on the back, no suborbital flap and the pelvic-fin origin posterior to the dorsal-fin origin. Paraschistura hormuzensis, new species, from the Minab drainage, is distinguished by having scales on the back, a pointed snout and a triangular suborbital flap in males. Paraschistura...
To evaluating population dynamics and stock assessment of Persian loach, Oxynoemacheilus persa, 1... more To evaluating population dynamics and stock assessment of Persian loach, Oxynoemacheilus persa, 196 specimens (with total length of 25.46mm to77.24mm) were captured from Kor river Basin, Fars province, Iran, during 2011-2012. The mean annual water temperature was 16.76C˚. Analyses showed a significant relationship between fork length and weight of Persian loach which can be shown as W=0.000006 FL3.231. The ultimate length (L∞) and the growth coefficient (K) were 80mm and 0.38 respectively. Total mortality (Z=1.34), natural mortality (M=0.47), fishing mortality (F=0.77), exploitation coefficient (E=0.57) and Phi-Prime (Φ’=7.79) were also estimated. The results are given for the first time for Persian loach and could be applied for conservation programs of this endemic species in Iran.
Paracobitis hircanica, new species, from the Gorgan River drainage in the southeastern Caspian Se... more Paracobitis hircanica, new species, from the Gorgan River drainage in the southeastern Caspian Sea basin, is distinguished from other species of the genus occurring in the Middle East by the combination of the absence of scales on the body, a moderate to deeply emarginate caudal fin, a fine marbled or vermiculate brown colour pattern on the flank, and dark-brown caudal-fin rays with a hyaline anterior and distal margin.
ABSTRACT Paracobitis atrakensis, new species, from the Atrak and Bidvaz River drainages in northe... more ABSTRACT Paracobitis atrakensis, new species, from the Atrak and Bidvaz River drainages in northeastern Iran, is distinguished from other species in the genus occurring in the Middle East by the combination of having a truncate or slightly emarginated caudal fin and no scales on the body, except for few scales on the dorsal adipose crest in some in-dividuals.
Three new species of Turcinoemacheilus are described from Iran and Turkey raising the number of s... more Three new species of Turcinoemacheilus are described from Iran and Turkey raising the number of species in this genus to six, five of them in the Middle East. Turcinoemacheilus bahaii, new species, from the Zayandeh River in Iran is distinguished by having the anus situated in a posterior position and a dark brown blotch on each side of the anal-fin base in both sexes. Turcinoemacheilus minimus, new species, from the upper Euphrates drainage in Turkey is distinguished by having the anus situated in an anterior position, a slender and long caudal peduncle and a very small maximum size (up to 38 mm SL). Turcinoemacheilus saadii, new species, from the Karoun drain-age in Iran is distinguished by having the anus situated in an anterior position and an unique colour pattern of large dark brown saddles. In the Middle East, all Turcinoemacheilus species are well distinguished by molecular characters and show between 5.3 and 8.5 % K2P sequence divergence in their COI barcode region.
Garra is the most species-rich genus of freshwater fishes in the Arabian Peninsula, including Oma... more Garra is the most species-rich genus of freshwater fishes in the Arabian Peninsula, including Oman, which has eight recognized, species restricted mainly to the Hajar and Dhofar mountains. Garra species from the Dhofar region in Oman are reviewed based on integrated morphological and molecular (COI) data of newly collected fishes from the type localities of G. sindhae and G. smartae, and a new population from Wadi Laggashalyon. No diagnostic character was found to distinguish the two species and the Laggashalyon population as distinct taxa. Garra dunsirei, another species endemic to a sinkhole at Tawi Attair, a very difficult area to access at a depth of about 211 m, was examined here based on the GenBank data and the diagnostic characters given in the original descriptions of the studied Garra species. In addition, the phylogenetic tree placed the sequenced Omani Garra fishes into nine groups with K2P sequence divergence of 0.8% (G. smartae and G. smartae_Laggasaylon); 1.2% (G. sma...
The Lernaea parasite was reported in Alburnus hohenackeri Kessler, 1870, collected from the Char-... more The Lernaea parasite was reported in Alburnus hohenackeri Kessler, 1870, collected from the Char-Nimeh (or Chahnimeh) lake, Eastern Iran. Three fishes were infected with L. intestinalis having 3 to 22 parasites increasing with fish size. The maximum and minimum of parasite lengths were 138.02 mm and 24.54 mm respectively. The prevalence, mean intensity and abundance of infection by plerocercoid of L. intestinalis were 33.33%, 13.33, and 4.44 respectively.
Occurrence of Lernaea parasite in a narrow distributed endemic fish, Chondrostoma orientale (Orie... more Occurrence of Lernaea parasite in a narrow distributed endemic fish, Chondrostoma orientale (Oriental nase) restricted to the Kor river basin, Southwestern Iran is reported. Based on the obtained results, all three collected specimens (TL= 174-192mm, SL= 148-169mm) were infested with Lernaea parasites which were attached to the base of dorsal, pectoral, caudal and pelvic fins and also body muscles. The prevalence and intensity of parasite was 100% and 10.3, respectively. Due to effects of Lernaea , a long term monitoring of the parasites and fishes in the Kor River basin is highly recommended.
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