Известия ТИНРО (Jan 2023)

A method for assessing chemical contamination of bottom sediments using bioassay approach

  • A. V. Moshchenko,
  • T. A. Belan,
  • B. M. Borisov

DOI
https://doi.org/10.26428/1606-9919-2022-202-861-879
Journal volume & issue
Vol. 202, no. 4
pp. 861 – 879

Abstract

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A method for assessing the degree of marine pollution (TPFchem) is developed using a bioassay approach. The index TPFbio is calculated as the average coordinate of the optima of response curves (along the TPFchem gradient) known for the taxa of macrozoobenthos found at each station. The scale for correspondence between TPFchem and TPFbio is determined, separately for the fine-grained bottom sediments (with more than 10–12 % of particles < 0.05 mm) and for the sediments with lower portion of fine particles. Any list of species can be processed. Besides the assessing the level of chemical pollution, the method allows to correct results of chemical assessments and to restore dynamics of anthropogenic impact or to trace accumulation of pollutants at the seashore. However, reliable results of this method can be guaranteed for the coastal waters of Vladivostok only.

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