Age and diet-specific trace element accumulation patterns in different tissues of chub (Squalius cephalus): Juveniles are useful bioindicators of recent pollution
作者： Krisztián Nyeste , Patrik Dobrocsi , István Czeglédi , Herta Czédli , Sándor Harangi
DOI: 10.1016/J.ECOLIND.2019.01.001
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摘要: Abstract Chub (Squalius cephalus L. 1758) specimens of three age groups with different types diet were collected in November 2013 the River Szamos/Somes, Hungary. The Ca, K, Mg, Na, Cd, Cr, Cu, Fe, Mn, Pb, Sr and Zn concentrations analyzed muscle, gills liver samples chub by microwave assisted plasma-atomic emission spectrometry (MP-AES). Kruskal–Wallis test revealed significant differences among based on trace element liver, muscle gills. concentration pattern differed, may be according to groups. Meanwhile no differentiation was observed, probably because elements is related habitat preference, which does not differ during life-span chub. In contrast expectations, juveniles highest most cases, certainly their specific diet, relatively fast metabolic rate inadequately developed detoxification system. Only copper increased fish age. Considerable tissues observed case whose Szamos higher than previous years. According this phenomenon, patterns good indicators recent pollution watercourses.
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