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- Title
Impact of petroleum pollution on aquatic coastal ecosystems in Brazil
- Authors
Campos Peso-Aguiar, M.; Teixeira Navarro, M. de F.; da Silva, E. M.; Chastinet, C. de B. e Azevedo
- Abstract
Although oil activities generate numerous forms of environmental impact on biological communities, studies of these impacts on Brazilian coastal ecosystems are rare. Results of tests for the content of oil in sediments and organisms indicate a substantially high rate of degradation. Results for uptake of polycyclic aromatic hydrocarbons in bivalves suggested the recent occurrence of oil spills and that these organisms differed in their capabilities to bioconcentrate oil. The mangrove community has suffered constant inputs of oil and has responded with increased numbers of aerial roots, generation of malformed leaves and fruits by plants, and a decrease in litter production. Studies of the impact of oil on rocky shore communities and the toxicity ofoil and its by-products to marine organisms have confirmed the results reported in the literature. Presently most of the available studies deal with the macroscopic effects of oil on organisms and have indicated that the nature of oil, climate characteristics, the physical environment, and the structure of the community influence the symptomsof oil contamination in organisms of coastal waters. Long-term studies should be carried out to assess changes in community structure, sublethal effects in populations, and the resilience of contaminated ecosystems.
- Subjects
BIOMARKERS; BIOLOGICAL monitoring; COASTAL zone management; MARINE pollution; OIL pollution of water
- Publication
Environmental Toxicology & Chemistry, 1997, Vol 16, Issue 1, p112
- ISSN
0730-7268
- Publication type
Article