Age, growth and reproduction of Paracobitis malapterura (Teleostei: Nemacheilidae) from Qom River, Iran



We examined 271 specimens of Paracobitis malapterura throughout the spawning season (February to July, 2014) from Qom River (Central Iran) to describe their age, growth, and reproduction. Sex ratio was 1:6.1 in favor of females. Among the examined specimens, the maximum age was 3+ years. The specimens ranged 35-120mm in total length and 0.38-9.58g in total weight. Length-weight relationship was estimated as W=1E-05TL2.94, W=2E-05TL2.73, and W=1E-05TL2.92 for females, males and combined sexes, respectively. The growth type was isometric for females and sexes combined and negative allometric for males. Based on the gonado-somatic index values, spawning occurs between late February and late April. The highest mean GSI was 1.9, and 13.85 for males and females, respectively in April. The absolute fecundity ranged from 164 to 793 with a mean of 353.3 eggs. Fecundity was positively correlated with fish size (length and weight).


Loaches, Growth, Reproduction, Qom River, Iran.

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Alavi Yeganeh, M.S.; Seifabadi, S.J.; Keivany, Y.; Kazemi, B. & Wallis, G.P. 2011. Comparison of length-weight relationships in different populations and sexes of Iranian thoothcarps. Journal of Applied Ichthyology 27: 1401-1403.

Angelescu, V.; Gneri, F.S. & Nani, A. 1958 La merluza del mar argentino (biologia e taxonomia). Secr. Mar. Serv. Hidrog. Nav. Publico. H1004: 1-224.

Bagenal, T. & Tesch, F. 1978. Methods for Assessment of Fish Production in FreshWaters. IBP Handbook 3, Blackwell, Oxford, 365 pp.

Bănărescu, P. & Nalbant, T. 1964. Süßwasserfische der Türkei. 2. Teil Cobitidae. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 61: 159-201.

Bănărescu, P. & Nalbant, T. 1995. A generical classification of Nemacheilinae with description of two new genera (Teleostei: Cypriniformes: Cobitidae). Travaux du Muséum d'Histoire Naturelle Grigore Antipa, Bucurešti 35: 429-496.

Bleeker, P. 1863. Sur les genres de la famille des Cobitioïdes. Nederlands Tijdschrift van Dierkunde 1: 361-368.

Bohlen, J. 1999. Reproduction of spined loach, Cobitis taenia, (Cypriniformes; Cobitidae) under laboratory conditions. Journal of Applied Ichthyology 15: 49-53.

Daneshvar, E.; Keivany, Y. & Paknehad, E. 2013. Comparative Biometry of the Iranian Cichlid, Iranocichla hormuzensis, in Different Seasons and Sexes. Research in Zoology 3(2): 56-61.

Esmaeili, H. R.; Mousavi-Sabet, H.; Sayyadzadeh, G.; Vatandoust, S. & Freyhof, J. 2014. Paracobitis atrakensis, a new species of crested loach from northeastern Iran (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters 25: 237-242.

Fernandez-Delgado, C. & Rossomanno, S. 1997. Reproductive biology of the mosquitofish in a permanent natural lagoon in south-west Spain: two tactics for one species. Journal of Fish Biology 51: 80-92.

Freyhof, J.; Esmaeili, H.R.; Sayyadzadeh, G. & Geiger M. 2014. Review of the crested loaches of the genus Paracobitis from Iran and Iraq with the description of four new species (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters 25: 11-38.

Fulton, T.W. 1904. The Rate of Growth of Fishes. Twenty-second Annual Report, Part III. Edinburgh: Fisheries Board of Scotland.

Jamali, H.; Hasanpour-Fattahi, A.; Abdollahi, D.; Patimar, R. & Keivany, Y. 2015. Some biological characteristics of Sefidrud loach, Oxynoemacheilus bergianus (Teleostei: Nemacheilidae), in Aras River, northwestern Caspian Sea basin. Iranian Journal of Ichthyology 2(1): 13-19.

Jamali, H.; Patimar, R.; Farhadi, M.; Golzarianpour, K. & Daraei, V. 2014. Some aspects of the life history of Turcinoemacheilus hafezi (Teleostei: Nemacheilidae) from Beshar River, southwestern Iran. Iranian Journal of Ichthyology 1(1): 32-38.

Jouladeh-Roudbar, A.; Vatandoust, S.; Eagderi, S.; Jafari-Kenari, S. & Mousavi-Sabet, H. 2015. Freshwater fishes of Iran; an updated checklist. AACL Bioflux 8(6): 855-909.

Jouladeh Roudbar, A.; Eagderi, S. & Esmaeil, H.R. 2015. Fishes of the Dasht-e Kavir basin of Iran: an updated checklist. International Journal of Aquatic Biology 3(4): 263-273.

Kottelat, M. 2012. Conspectus cobitidum: an inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei). The Raffles Bulletin of Zoology 26: 1-199.

LeCren, E.D. 1951. The length-weight relationship and seasonal cycle in gonad weight and condition in the perch Perca fluviatilis. Journal of Animal Ecology 20: 201-219.

Lobon-Cervia, J. & Zabala. A. 1984. Observation on the reproduction of Cobitis paludicola De Buen, 1930 in the Jarma River. Cybium 8: 63-68.

Min, R.; Chen, X. Y. & Yang J. X. 2010. Paracobitis nanpanjiangensis, a new loach (Balitoridae: Nemacheilinae) from Yunnan, China. Environmental Biology of Fishes 87: 199-204.

Mousavi-Sabet, H.; Gharaei, A.; Nasrollahzade, A.; Habibi A. & Eagderi, S. 2014. Redescription of Paracobitis rhadinaea (Regan, 1906) from Sistan Basin, Iran (Teleostei: Nemacheiliidae). International Journal of Aquatic Biology 2(5): 286-291.

Mousavi-Sabet, H.; Sayyadzadeh, G.; Esmaeili, H.R.; Eagderi, S.; Patimar, R. & Freyhof, J. 2015. Paracobitis hircanica, a new crested loach from southern Caspian Sea basin (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters 25: 339-346.

Nalbant, T. & Bianco, P. 1998. The loaches of Iran and adjacent regions with description of six new species (Cobitoidea). Italian Journal of Zoology 65: 109-123.

Nguyen, V.H. 2005. Freshwater fishes of Vietnam. v. 2: 760 p.

Nikolsky, G.V. 1980. Theory of Fish Population Dynamics. Otto Koeltz Science Publishers, Koenigstein. 323 p.

Patimar, R.; Adineh, H. & Mahdavi. M.J. 2009. Life history of the Western Crested Loach Paracobitis malapterura in the Zarrin-Gol River, East of the Elburz Mountains (Northern Iran). Biologia 64: 350-355.

Patimar, R.; Mortazaei, K. & Mollamohammad, Z.S. 2010. On the biological characteristics of a Kessler's loach Schistura kessleri (Günther, 1889) in the northeastern Iran. International Loach Conference 2010, 31 August to 3 September 2010, Prague, Czech Republic.

Patimar, R.; Amouei, M. & Mir-Ashrafi, S.M. 2011a. New data on the biology of Cobitis cf. satunini from the southern Caspian basin (northern Iran). Folia Zoologica 60: 308-314.

Patimar, R.; Mortazaei, K. & Sabiani, A. 2011b. Age, growth and reproductive characteristics of the Turkmenian crested loach Metaschistura cristata (Nemacheilidae). Folia Zoologica 60(4): 302-307.

Pauly, D. 1984. Fish Population Dynamics in Tropical Waters: A Manual for Use for Programmable Calculators. ICLARM Studies and Reviews 8, 325 p.

Prokofiev, A.M. 2009. Problems of the classification and phylogeny of Nemacheiline loaches of the group lacking the preethmoid I (Cypriniformes: Balitoridae: Nemacheilinae). Journal of Ichthyology 49: 874-898.

Przybylski, M. & Valladolid, M. 2000. Age and growth of the Iberian loach, Cobitis paludica in the Lozoya River (Madrid, Central Spain), an intermittent stream. Folia Zoologica 49: 163-169.

Slavik, O. & Rab, P. 1996. Life history of spined loach, Cobitis taenia, in an isolated site (Psovka Creek, Bohemia). Folia Zoologica 45: 247-252.

Tabiee, O. & Abdoli, A. 2005. A study of biological aspects of Nemacheilus malapterurus, Zarringol River, Golestan Province (in Farsi). Iranian Journal of Natural Resources 57: 715-728.

Tesch, F.W. 1968. Age and growth. In Methods for Assessment of Fish Production in Fresh Waters, edited by Ricker, W.E. Oxford: Blackwell Scientific Publications.

The IUCN Red List of Threatened Species. Version 2015-4. . Downloaded on 11 March 2016.

Weatherley, A.H. 1972. Growth and Ecology of Fish Populations. Academic Press, London, 293 p.

Zar, J.H. 1984. Biostatistical Analysis. Englewoods Cliffs, N. J. Prentice Hall, 717 p.


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