This work was conducted to study the patterns of morphological differences in body shape in Squalius turcicus De Filippi, 1865 from the most east (Atrak River) to the most west (Aras River) populations of the southern Caspian Sea basin using landmark-based geometric morphometric method to understand how the body shape alters in relation to geographical alternations or environmental characters of their habitats. A total of 102 specimens were collected from the Aras, Tajan, Atrak, Ghareh-Su, Khyer and Sefid rivers and after anesthesia, their left faces were photographed. To extract shape data, 14 homologous landmark-points were digitized and data after generalized procrustes analysis, analysed using principal component analysis, canonical variate analysis, cluster analysis, and Mantel test. The results showed significant differences between the body shape of six studied populations, mostly related to snout, base of the dorsal and anal-fins, body depth and pectoral fin position as result of phenotypic plasticity to the environmental features of their habitats. The Tajan and Atrak populations have a higher and lower body depth, and the Kheyr population a longer snout.
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Cadrin SX (2000) Advances in morphometric identification of fishery stocks. Rev Methods Technol Fish Biol Fish 10:91–112. https://doi.org/10.1023/A:1008939104413
Cadrin SX, Silva VM (2005) Morphometric variation of yellowtail flounder. ICES J Mar Sci 62:683–694. https://doi.org/10.1016/j.icesjms.2005.02.006
Carlton JT (ed) (2007) The light and Smith manual: intertidal invertebrates from Central California to Oregon, 4th edn. University of California Press, Berkeley
Coad BW (2018) Fresh water fishes of Iran. Available at www.briancoad.com. Accessed 2 Nov 2018
Eagderi S, Esmaeilzadegan E, Madah A (2013) Body shape variation in riffle minnows (Alburnoides eichwaldii De Filippii, 1863) populations of Caspian Sea basin. Taxonomy and Biosystematics 5(1):1–8
Esmaeili HR, Sayyadzadeh G, Eagderi S, Abbasi K (2018) Checklist of freshwater fishes of Iran. FishTaxa 3:1–95
Gelsvartas J (2005) Geometric morphometrics. [pdf] Availble at http://homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES.AV0910/gelsvartas.pdf. Accessed 20 Oct 2013
Jalili P, Eagderi S, Keivany Y (2015) Body shape comparison of Kura bleak (Alburnus filippii) in Aras and Ahar-Chai rivers using geometric morphometric approach. Res Zool 5:20–24. https://doi.org/10.5923/j.zoology.20150501.03
Jolliffe IT (2002) Principal component analysis. Springer, USA, New York, pp 150–166
Keast A, Webb D (1966) Mouth and body form relative to feeding ecology in the fish fauna of a small Lake, lake Opinicon, Ontario. J Fish Board Can 23:1845–1874. https://doi.org/10.1139/f66-175
Langerhans RB, Layman CA, Langerhans AK, Dewitt TJ (2003) Habitat-associated morphological divergence in two Neotropical fish species. Biol J Linn Soc 80:689–698. https://doi.org/10.1111/j.1095-8312.2003.00266.x
Mohadasi M, Eagderi S, Shabanipour N, Hosseinzadeh MS, AnvariFar H, Khaefi R (2014) Allometric body shape changes and morphological differentiation of Shemaya, Alburnus chalcoides (Guldenstadf, 1772), populations in the southern part of Caspian Sea using elliptic Fourier analysis. Int J Aquat Biol 2:164–171. https://doi.org/10.22034/ijab.v2i3.80
Mouludi-Saleh A, Keivany Y (2018a) Morphological diversity in three species of Chubs (Squalius spp.) populations in Iranian basins. Nova Biol Repr 5:192–204
Mouludi-Saleh A, Keivany Y (2018b) Morphometric analysis of Squalius namak Khaefi et al. 2016 in Khaznagh and Ghare-Chai rivers. Sri Lanka J Aquat Sci 23:173–178. https://doi.org/10.4038/sljas.v23i2.7558
Mouludi-Saleh A, Keivany Y, Jalali SAH (2018a) Biometry of Chub (Squalius namak Khaefi et al. 2016) in rivers of Namak Basin. Exp Anim Biol 7:107–118
Mouludi-Saleh A, Keivany Y, Jalali SAH (2018b) Comparison of meristic traits in Transcaucasian chub (Squalius turcicus De Filippi, 1865) from Caspian Sea basin. Int J Aquat Biol 6:8–14. https://doi.org/10.22034/ijab.v6i1.317
Moyle PB, Cech JJ Jr (1982) Fishes: an introduction to ichthyology. Prentice Hall, Inc., Englewood Cliffs
Scheiner SM (1993) Genetics and evolution of phenotypic plasticity. Annu Rev Ecol Syst 24:35–68. https://doi.org/10.1146/annurev.es.24.110193.000343
Smith TB, Skúlason S (1996) Evolutionary significance of resource polymorphisms in fishes, amphibians, and birds. Annu Rev Ecol Syst 27:111–133. https://doi.org/10.1146/annurev.ecolsys.27.1.111
Stearns SC (1983) A natural experiment in life-history evolution: field data on the introduction of mosquito fish (Gambusia affinis) to Hawaii. Evolution 37:601–617. https://doi.org/10.2307/2408273
Turan D, Kottelat M, Doğan ESRA (2013) Two new species of Squalius, S. adanaensis and S. seyhanensis (Teleostei: Cyprinidae), from the Seyhan River in Turkey. Zootaxa 3637:308–324. https://doi.org/10.11646/zootaxa.3637.3.4
Vatandoust S, Yerli SV, Jalili P (2016) Descriptive osteology of Squalius orientalis from Urmia Lake basin of Iran. Int J Aquat Biol 4:215–223. https://doi.org/10.22034/ijab.v4i3.221
Webb P (1984) Body form, locomotion and foraging in aquatic vertebrates. Am Zool 24:107–120. https://doi.org/10.1093/icb/24.1.107
Conflict of interest
The authors declare that they have no conflict of interest.
In this manuscript, we studied the patterns of morphological variations in Squalius turcicus form the most east (Atrak River) to the most west (Aras River) populations of the southern Caspian Sea basin using landmark-based geometric morphometric method. We confirm that all procedures performed in this study involving animals were in accordance with the ethical standards of the Nevsehir Hacı Bektas Veli University, Republic of Turkey (animal welfare committee, permission number: KSÜZİRHADYEK-2009/1).
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Mouludi-Saleh, A., Eagderi, S., Cicek, E. et al. Morphological variation of Transcaucasian chub, Squalius turcicus in southern Caspian Sea basin using geometric morphometric technique. Biologia (2020). https://doi.org/10.2478/s11756-019-00409-6
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