Morphological asymmetry in two marine fish species Acanthopagrus arabicus (Family: Sparidae) and Planiliza klunzingeri (Family: Mugilidae), collected from brackish and freshwater environments in southern Iraq
L. Jawad, A. AL-SABOONCHI, Z. J. Musa, Azhar M. Nazal, Ahmed M. H. Al-Dirawi
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Abstract
Abstract Morphological asymmetry was analysed in two marine fish species Acanthopagrus arabicus and Planiliza klunzingeri, in brackish and freshwater habitats in southern Iraq. For both species, specimens from the Shatt al-Arab River and Shatt al-Basrah Canal exhibited greater asymmetry values for snout length. In both locations examined, the levels of asymmetry of the physical traits increased as the fish grew. The high levels of asymmetry in the two fish species may be linked to heavy metal pollutants in the two aquatic environments studied.
期刊介绍：
Oceanological and Hydrobiological Studies is an international journal published by the Institute of Oceanography, University of Gdańsk in Poland. The journal has 4 issues per year and contains papers on all aspects of the marine environment and hydrobiology. All manuscripts are reviewed by editors and independent experts. Based on the referees'' recommendations, the Editor will make a decision on whether to accept a contribution. All articles are published in English. The journal is open to all matters concerning the water environment, thus providing the readers with a wide spectrum of topics in every issue.
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