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Age structure and growth of the Gurra rufa (Cyprinidae), in southern Iran
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December 1, 2013
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Abdol-Rahim Pazira, Saeid Moghdani, Farshad Ghanbari
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Int. J. Biosci.3( 12), 115-119, December 2013
DOI: http://dx.doi.org/10.12692/ijb/3.12.115-119
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IJB 2013 [Generate Certificate]Abstract
The age structure and growth of Gurra rufa (Heckel, 1843), in the Dalaki river (Boushehr province in southern Iran) were studied in samples caught from May 2007 to September 2007. The maximum total lengths were 171 mm in females (168) and 188 mm in males (156). Age determination based on the scale and opercle readings shows that the population has 4 age classes. The growth of both sexes was isometric (b=2.89 males, b=2.93 females). The highest growth rate was observed between age 1 and 2 in both sexes. Growth parameters were computed by the von Bertalanffy equation for females and males as: L∞ = 164.14, W∞ =117.11¸ t0 = -1.16, K= 0.189 and L∞=168.16, W∞=116.28, t0=-1.14, K= 0.213 respectively.
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Abdol-Rahim Pazira, Saeid Moghdani, Farshad Ghanbari (2013), Age structure and growth of the Gurra rufa (Cyprinidae), in southern Iran; IJB, V3, N12, December, P115-119
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This article is published under the terms of the Creative
Commons Attribution Liscense 4.0
Age structure and growth of the Gurra rufa (Cyprinidae), in southern Iran
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