Acute and chronic toxicity of sediment samples from Guanabara Bay (RJ) during the rainy period

Authors

  • Luciane Alves Maranho Universidade Estadual Paulista Júlio de Mesquita Filho; Campus do Litoral Paulista -São Vicente
  • Ilene Matanó Abreu Universidade Federal Fluminense
  • Ricardo Erthal Santelli Universidade Federal Fluminense
  • Renato Campelo Cordeiro Universidade Federal Fluminense
  • Abílio Soares-Gomes Universidade Federal Fluminense; Instituto de Biologia; Depto. de Biologia Marinha
  • Lucas Buruaem Moreira Universidade Federal do Ceará; Instituto de Ciências do Mar. Labomar
  • Rodofley Davino Morais Universidade Federal do Paraná; Laboratório de Biogeoquímica Marinha; Centro De Estudos Do Mar
  • Denis Moledo de Sousa Abessa Universidade Federal do Ceará; Instituto de Ciências do Mar. Labomar

DOI:

https://doi.org/10.1590/S1679-87592010000700010

Keywords:

bioassays, Tiburonella viscana, Lytechinus variegatus, sediment, Toxicity, Guanabara Bay

Abstract

Guanabara Bay is a marine-estuarine environment of high ecological and socio-economic importance, subject to a variety of environmental impacts. Sediment is the eventual repository for most substances introduced into water bodies and may, therefore, provide an integrated measure of the environmental quality, which can be assessed by many different approaches. In this project, the quality of sediments from Guanabara Bay was evaluated by the ecotoxicological approach: whole-sediment toxicity tests, using Tiburonella viscana, and porewater, elutriate and sediment-water interface chronic toxicity tests, using embryos of Lytechinus variegatus, were applied. Sediments were collected at 14 sampling stations, distributed across the bay. Chronic tests showed significant toxicity in most of the sediment samples. Sediments from stations 1, 2, 3, 6, 8, 10, 11, 12 and 15 showed acute toxicity as well. The results of the different tests were well correlated, and their integration showed that the sediments analyzed were considered unsuitable for aquatic life, resulting in the environmental degradation of Guanabara Bay. In this context, the control of pollution sources and multi-purpose management are required to improve the environmental quality.

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Published

2010-06-01

How to Cite

Maranho, L. A., Abreu, I. M., Santelli, R. E., Cordeiro, R. C., Soares-Gomes, A., Moreira, L. B., Morais, R. D., & Abessa, D. M. de S. (2010). Acute and chronic toxicity of sediment samples from Guanabara Bay (RJ) during the rainy period . Brazilian Journal of Oceanography, 58(spe3), 77-85. https://doi.org/10.1590/S1679-87592010000700010

Issue

Section

naodefinida