USING BENTHOS TO EVALUATE THE QUALITY OF MARINE ENVIRONMENT: CASE STUDY FROM CENTRAL VIETNAM AFTER THE INCIDENT CAUSED BY FORMOSA

Nguyen Thi Minh Phuong

Abstract


In this study, we evaluated the quality of marine environment in central Vietnam after the disaster caused by Formosa Ha Tinh Steel Corporation (Formosa), using both bio-indicators (benthos) and chemical indicators. Results show that using benthic fauna, especially meio-benthos can obtain data on the quality of marine environment faster and more accurate than using chemical indicators. In marine environment, monitoring contaminated areas and contamination sources is difficult since currents are normally strong, contaminants often move fast and far away from the sources. For the reasons, using benthos as indicator to localize the contaminated areas as well as assess the quality of marine environment can be an effective method. However, this indicator cannot help to identify the exact contaminants and using this requires a comprehensive knowledge on sea bottom topography, sedimentary characteristics, sea currents, biological competition, etc.


Keywords


marine environment, bio-indicators, chemical indicators, benthos.

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DOI: https://doi.org/10.15625/2525-2518/55/4C/12145 Display counter: Abstract : 234 views. PDF : 157 views.

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Published by Vietnam Academy of Science and Technology