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Abstract

Squalius kottelati, new species, is described from the Orontes, Ceyhan and Seyhan rivers in Turkey. It belongs to the S. lepidus group, characterized by a projecting lower jaw. It is distinguished from the other species of the genus Squalius in Turkey and adjacent basins by having a conspicuous broad, dark stripe on the upper part of the flank, from the head to the end of the caudal peduncle (vs. absent or very faintly marked, except S. lepidus). It differs from S. lepidus by having a longer head (28.3-30.9, vs. 25.3-27.3 % SL), fewer lateral-line scales (45-47, vs. 48-49) and fewer gill rakers on the first gill arch (9-10, vs. 11-13). It differs from S. anatolicus by having more scales in the lateral line (45-47,mode 46 vs. 43-45, mode 44); a longer caudal fin (length of upper lobe 20.3-22.5, vs. 15.8-19.0 % SL).
Accepted by R. Pethiyagoda: 29 Sept. 2009; published: 22 Oct. 2009 53
ZOOTAXA
ISSN 1175-5326 (print edition)
ISSN 1175-5334 (online edition)
Copyright © 2009 · Magnolia Press
Zootaxa 2270: 5362 (2009)
www.mapress.com/zootaxa/Article
Squalius kottelati, a new cyprinid species (Teleostei: Cyprinidae) from Orontes
River, Turkey
DAVUT TURAN1,2, B. TOGAY YILMAZ1 & CÜNEYT KAYA1
1 Rize University, Faculty of Fisheries and Aquatic Sciences, 53100 Rize, Turkey
2 Corresponding author. E-mail: dvtturan@yahoo.com
Abstract
Squalius kottelati, new species, is described from the Orontes, Ceyhan and Seyhan rivers in Turkey. It belongs to the S.
lepidus group, characterized by a projecting lower jaw. It is distinguished from the other species of the genus Squalius in
Turkey and adjacent basins by having a conspicuous broad, dark stripe on the upper part of the flank, from the head to the
end of the caudal peduncle (vs. absent or very faintly marked, except S. lepidus). It differs from S. lepidus by having a
longer head (28.3–30.9, vs. 25.3–27.3 % SL), fewer lateral-line scales (45–47, vs. 48–49) and fewer gill rakers on the
first gill arch (9–10, vs. 11–13). It differs from S. anatolicus by having more scales in the lateral line (45–47,mode 46 vs.
43–45, mode 44); a longer caudal fin (length of upper lobe 20.3–22.5, vs. 15.8–19.0 % SL).
Key words: Turkey, Cyprinidae, Squalius kottelati, taxonomy, Orontes, Ceyhan, Seyhan
Introduction
The genus Squalius comprises a number of medium-sized fishes widely distributed in Europe and West Asia.
The species of Squalius were for long placed in Leuciscus, until morphological and molecular data showed
that Leuciscus as earlier understood was paraphyletic (e.g., Zardoya & Doadrio, 1999; Bogutskaya, 1994).
Although species of Squalius are present in almost every stream in Anatolia, the species-level taxonomy of
the genus is still not fully settled (Stoumboudi, et al. 2006) . Only a few populations have been described in
sufficient detail in Anatolia and neighboring basins. A few species have been described from Anatolia but
most have later been relegated to the synonymy of S. cephalus, a ‘species’ at some time considered to be
distributed throughout Europe (see overview of the western Anatolian species in Stoumboudi et al., 2006). In
the past 40 years, authors who studied the aquatic fauna of southern Europe have shown that the Squalius of
the Mediterranean basin are much more diverse than reported in the classical (northern European) literature;
they clearly constitute a number of very distinctive lineages (see, e.g., Doadrio & Carmona, 2006, for the
Iberian Peninsula; Bianco & Recchia, 1983, for Italy; Bianco & Knezevic, 1987 and Bogutskaya & Zupancic,
1999, for Appennine and Balkan Peninsula; Kottelat & Economidis, 2006, for Greece; and in general by
Kottelat & Freyhof, 2007). Recent molecular data (Durand et al., 2000) support these morphological
observations and show a number of distinct lineages within the ‘S. cephalus’ of earlier authors. For the sake of
convenience, in the following discussion we will call these species the S. cephalus group.
Besides the S. cephalus group, there are a few species in Squalius that have always been considered as
distinct and whose distinctness has been accepted by all authors. One of these is S. lepidus. This species has
been reported from the Tigris, Euphrates, Kueik, Orontes and Beysehir drainages (Bogutskaya 1994, 1997). It
is distinguished from the species of the S. cephalus group by its elongated and pointed head and its projecting
lower jaw; greater number of cephalic pores (see below); and the posteriorly expanded lateral portions of its
parietals (Bogutskaya, 1994: 617). Bogutskaya (1997) described the populations from Lake Beysehir basin as
... In early studies, several species were described from Turkey: S. orientalis ( Nordmann, 1840) from the rivers and streams of Caucasus; S. berak Heckel, 1843 from Qweik River (Kilis Prov.); S. lepidus Heckel, 1843 from Tigris and Euphrates Rivers; S. turcicus De Filippi, 1865 from Kura River drainages; S. cii ( Richardson, 1857) from the southern Marmara Sea basin; S. fellowesii ( Günther, 1868) from Madra River south to Eşen River; S. pursakensis ( Hanko, 1924) from Sakarya River; S. cephaloides ( Battalgil, 1942) from northern Armutlu Peninsula; S. kosswigi ( Karaman, 1972) from Tahtalı River; and S. anatolicus ( Bogutskaya, 1997) from Lake Beyşehir basin. Later, all the mentioned species, except S. anatolicus and S. lepidus, have been treated as synonyms of S. cephalus ( Geldiay & Balık, 1999;Bogutskaya, 1997), but subsequently, these species have been again consideredas valid ( Stoumboudi, Kottelat & Barbieri, 2006;Turan, Yılmaz & Kaya, 2009;Özuluğ & Freyhof, 2011). In addition to these species, Turan et al. (2009) described S. kottelati, from Seyhan, Ceyhan and Orontes Rivers. ...
... Later, all the mentioned species, except S. anatolicus and S. lepidus, have been treated as synonyms of S. cephalus ( Geldiay & Balık, 1999;Bogutskaya, 1997), but subsequently, these species have been again consideredas valid ( Stoumboudi, Kottelat & Barbieri, 2006;Turan, Yılmaz & Kaya, 2009;Özuluğ & Freyhof, 2011). In addition to these species, Turan et al. (2009) described S. kottelati, from Seyhan, Ceyhan and Orontes Rivers. Özuluğ & Freyhof (2011) revised the species of central and western Anatolia and described four additional species: S. aristotelis from Tuzla drainage, S. carinus from Lake Işıklı basin, S. cappadocicus from Melendiz River in Lake Tuz basin, and S. recurvirostris from Lake Eber, Akşehir and Ilgın basins. ...
... A study of the fishes of the Euphrates River (Persian Gulf basin) yielded four species of Squalius. One is readily identifiable as S. lepidus, a species belonging to the lepidus-group and which also occurs in the Tigris drainages ( Turan et al., 2009). Two species belong to the cephalus-group: S. seyhanensis, whose type locality is the upper drainages of Seyhan River, and S. berak, whose type locality is Qweik River and which is also present in the Euphrates and Tigris Rivers ( Khaefi, Esmaeili, Sayyadzadeh, Geiger & Freyhof, 2016). ...
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In a study of the fishes of the Euphrates River (Persian Gulf basin) three species of Squalius belonging to the cephalus-group were found: The Tohma population was identified as S. seyhanensis and the Merzimen and Hilvan populations as S. berak. The comparison of 28 metric and 5 meristic parameters and morphological characters showed that the populations of the northern Euphrates River drainages are distinct and belong to a hitherto unnamed species. We describe it here as Squalius semae sp. n. http://www.zoobank.org/urn:lsid:zoobank.org:pub:D195B69C-C6CB-4DEB-B85D-5B695F917CE5
... The presence of 74 species of fish in Turkey and 53 species of fish in Iraq have been reported from the Euphrates and Tigris Rivers according to the available resources can be accessed. Several taxonomical studies have been used for the current situation of freshwater fish of these two rivers for Turkey (Kuru 1980;Ünlü 1991Ünlü et al. 1994, 1997, 2000Erk'akan et al. 1998Erk'akan et al. , 2007Erk'akan et al. , 2008Tsigenopoulos et al. 2003;Bogutskaya et al. 2006;Fricke et al. 2007;Turan et al. 2009Turan et al. , 2011Turan et al. , 2013Turan et al. , 2016Turan et al. , 2017Kara et al. 2011Kara et al. , 2016Liao et al. 2011;Çiçek et al. 2015;Freyhof and Özuluğ 2017;Küçük et al. 2017;Pers. commun with Prof. Ünlü) and for Iraq (Coad 2010;Jawad 2012) (Table 69.1). ...
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The preliminary study aims to present and compare the parasites of the freshwater fish from the Euphrates and Tigris Rivers of Iraq and Turkey. This study is also the first to provide a collective look at the parasites of freshwater fish from both these rivers. The comparison is mainly based on the checklists studied from the published papers on the fish parasites of these rivers. The parasite diversity is examined according to Phyla Platyhelminthes (Monogenea, Digenea, Cestoda), Acanthocephala, Nematoda, Annelida, Arthropoda, Cnidaria, and Ciliophora. The number of parasites reported in the freshwater fish from the Tigris River (241 species) is higher than the Euphrates River (170 species). In addition, the parasite diversity of the Euphrates River Part in Iraq (129 species) is higher than the Euphrates River Part in Turkey (62 species). The fish parasite diversity from the Tigris River of both countries was not compared due to insufficient information. It is recommended to do parasitological study as detailed in both rivers in future, especially the Tigris River.
... Until 2000's most of the short-snouted chubs, within the 'Euro-Asiatic' lineage, were identified as chub Squalius cephalus and known from almost all water bodies of Anatolia (Doadrio & Carmona, 2006;Özuluğ & Freyhof, 2011). Based on the molecular and morphological studies (Durand et al., 2000;Kottelat & Freyhof, 2007;Turan et al., 2009;Özuluğ & Freyhof, 2011;Turan et al., 2013;Turan et al., 2017a), numerous species of chubs existed in Anatolia as valid and most of these species were endemic to restricted water bodies. One of these endemic chubs, Akşehir chub Squalius recurvirostris Özuluğ & Freyhof, 2011 is known from Lake Eber, Ilgın and Akşehir basins in the Central Anatolia and was listed as Vulnerable (VU) in IUCN Red List (IUCN 2021). ...
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... In particular, the populations in barbel zone are affected by chemical input and loads in water beds (Luigi et al. 2015). The chub Squalius orientalis (Teleostei: Cyprinidae) is a benthopelagic fish species and distributes in Turkey (Turan et al. 2009). The natural populations of the species are abundant in the barbel zone. ...
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