ISO DIS 23734
Marine technology — Marine environment impact assessment (MEIA) — On-board bioassay to monitor seawater quality using delayed fluorescence of microalga
|Publication Date:||25 August 2020|
|ICS Code (Environmental impact assessment):||13.020.30|
|ICS Code (General standards related to shipbuilding and marine structures):||47.020.01|
This International Standard specifies a bioassay for the determination of the presence of unknown toxic contaminants in test seawater. It is based on the inhibition of photosynthetic activity of the marine cyanobacterium Cyanobium sp. (NIES-981) by such toxic contaminants. The inhibition is determined based on delayed fluorescence (DF) intensity.
The method is rapid and requires less laboratory space than standard bioassays. Hence, it may be used on-board to generate basic data for seawater quality management at deep-sea mining sites where time and space are extremely limited.