Distribution characteristics of heavy metals in the organs and tissues of striped dolphin, Stenella coeruleoalba.

• HONDA Katsuhisa

  Department of Environment Conservation, Ehime University

• TATSUKAWA Ryo

  Department of Environment Conservation, Ehime University

• FUJIYAMA Toraya

  Department of Marine Science, University of the Ryukyus

Abstract

The distribution of heavy metals (Fe, Mn, Zn, Cu, Pb, Ni and Cd) were investigated in various organs and tissues of striped dolphin, Stenella coeruleoalba. The animals were caught alive at Taiji, on the coast of Kii Peninsula, during the open season in December 1978. Determination of the metals was made by atomic absorption spectrophotometry and significant differences of metal concentration in the positions of the muscle, blubber and skin, respectively, were observed. The front ventral muscle of matured dolphins showed the highest concentrations of Zn and Cd and lowest Fe when compared to other parts of the muscle. Most of the metals recorded relatively low concentrations in melon rather than in the other lipid layers of blubber. In skin tissue, the concentrations of Fe, Mn and Zn were significantly higher in black-colored skin than in white skin. Moreover, a difference in the concentrations of metals according to bone position was observed. In general, high concentrations of most of the metals were found in liver, kidney and bone, with low concentrations in brain and the lipid layer of blubber. Furthermore, relatively high concentrations of Cu, Mn and Zn were found in skin, and for Mn, Zn, Ni and Cd it was likewise in pancreas and the reproductive organs. Based upon these results, the nature of the organ(s) of a dolphin that has to be selected for ecological and hygienic comparison was discussed.

Journal

• Agricultural and Biological Chemistry

  Agricultural and Biological Chemistry 46 (12), 3011-3021, 1982

  Japan Society for Bioscience, Biotechnology, and Agrochemistry

Keywords

• General Agricultural and Biological Sciences
• General Biochemistry, Genetics and Molecular Biology

Details

• CRID: 1390001206463302528
• NII Article ID: 130000028190
• DOI: 10.1271/bbb1961.46.3011
• COI: 1:CAS:528:DyaL3sXms1Ojug%3D%3D
• ISSN: 18811280
• ISSN: 00021369
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed