Biochemical normalization of trace metals in Arctocephalus australis

  • Besnik Baraj Fundação Universidade Federal do Rio Grande
  • Luis Felipe Niencheski Fundação Universidade Federal do Rio Grande
  • Gilberto Fillmann Fundação Universidade Federal do Rio Grande
  • Luciano Hermanns Fundação Universidade Federal do Rio Grande
Keywords: Heavy Metals, Arctocephalus australis, Normalization, Brazil

Abstract

Initially, the heart concentration data does not seem relevant for use as a bioindicator, mainly due to its low concentration level. After applying a normalizing procedure, the heart results were a better Hg bioindicator (preconcentration coefficient 43.1) than those of the kidney (preconcentration coefficient 8.6). Cadmium preconcentration coefficients were 128.1, 195.3 and 5.2 for liver, kidney and heart, respectively, demonstrating the high accumulative capacity especially for the liver and kidneys. Iron is proposed as a normalizing element for the definiton of the regional natural biochemical population of the metals. In general, positive correlation coefficients were found between Fe and other metals.

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Published
2009-03-01
How to Cite
Baraj, B., Niencheski, L., Fillmann, G., & Hermanns, L. (2009). Biochemical normalization of trace metals in Arctocephalus australis. Brazilian Journal of Oceanography, 57(1), 1-6. https://doi.org/10.1590/S1679-87592009000100001
Section
naodefinida