As sea-bed mining looms, researchers say better records of seafloor biodiversity are needed to assess its environmental impact
Contractors would like to mine the sea bed for metal-rich clumps of sediment called polymetallic nodules.
The ISA protests some of the findings, however, saying that the report is out of date. The researchers downloaded data collected in the CCZ on 12 July 2021 to run their analysis. Since then, the ISA has made “significant improvements” to address quality assurance and control issues with DeepData, it says.
Looking at the database today, however, Rabone says that some duplicate data still exist, and that many records still do not have a unique identifier.
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