Accumulation of Metals in Juvenile Carp (Cyprinus carpio) Exposed to Sublethal Levels of Iron and Manganese: Survival, Body Weight and Tissue

Sándor Harangi, Edina Baranyai, Milán Fehér, Csilla Noémi Tóth, Petra Herman, László Stündl, I. Fábián, B. Tóthmérész, Edina Simon

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Abstract

Many oxbows are contaminated by Fe and Mn as a consequence of the elemental concentration of sediment and water originating from the Upper Tisza Region of Hungary. The phenomenon is partly caused by anthropogenic activities and mainly due to the geochemical characteristics of the region. The effects of Fe and Mn on the aquatic ecosystem of these wetlands were investigated in a model experiments in this study. Survival, individual body weight and the elemental concentrations of organs were determined in common carp (Cyprinus carpio) juveniles reared in Fe and Mn contaminated media (treatment 1: Fe 0.57 mg L−1, Mn 0.29 mg L−1, treatment 2: Fe 0.57 mg L−1, Mn 0.625 mg L−1, treatment 3: Fe 1.50 mg L−1, Mn 0.29 mg L−1, treatment 4: Fe 1.50 mg L−1, Mn 0.625 mg L−1 and control: Fe 0.005 mg L−1, Mn 0.003 mg L−1), for rearing time of 49 days. The treatment with Fe and Mn did not have any effect on the survival data and individual body weight in the levels tested. The highest concentration of Fe and Mn was found in the liver and brain of carp juveniles, while the lowest concentration of these elements occurred in the muscular tissue and gills. The treatment where Fe and Mn were applied in the highest concentrations resulted in a statistically higher level of these elements in the brain, grills and muscle tissues. The treatment where only Mn was present in the highest concentration caused increased level of Mn only in the liver. We found metal accumulation in almost every organ; however, the applied concentrations and exposure time did not affect the survival and average body weight of carp juveniles.

Original languageEnglish
Pages (from-to)187-195
Number of pages9
JournalBiological Trace Element Research
Volume177
Issue number1
DOIs
Publication statusPublished - May 1 2017

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Keywords

  • Accumulation
  • Cyprinus carpio
  • Iron
  • Manganese
  • MP-AES
  • Organs

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Biochemistry
  • Clinical Biochemistry
  • Biochemistry, medical
  • Inorganic Chemistry

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