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ISO 23734:2021

Current Revision

Marine technology - Marine environment impact assessment (MEIA) - On-board bioassay to monitor seawater quality using delayed fluorescence of microalga

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This document specifies a bioassay for the determination of the presence of unknown toxic contaminants in test seawater (see Figure A.1). 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 can be used on-board to generate basic data for seawater quality management at deep-sea mining sites where time and space are extremely limited.


SDO ISO: International Organization for Standardization
Document Number ISO 23734
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 8/SC 13
Publish Date Document Id Type View
Not Available ISO 23734:2021 Revision