MIDAS 2016

Investigation of Field Protocols for Deep Sea Mining Monitoring and Environmental Impact Assessment

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MIDAS 2016

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Investigation of Field Protocols for Deep Sea Mining Monitoring and Environmental Impact Assessment

Location: Condor

Year: 2016

52 stations

43 dives

122 km transits

1 areas visited

AZORES DEEP-SEA RESEARCH

Summary

Investigation of Field Protocols for Deep Sea Mining Monitoring and Environmental Impact Assessment

The primary objective of the MIDAS 2016 cruise was to test and evaluate a suite of new technologies and methodologies developed under the EU's Managing Impacts of Deep-seA reSource exploitation (MIDAS) project, specifically for application in the Environmental Management Framework (EMF) for Deep Sea Mining. The cruise served as a field demonstration, bringing together academic researchers and offshore industry professionals to assess the practical application of protocols for Environmental Baseline Surveys (EBS) and Environmental Impact Assessment (EIA). Key focus areas included testing semi-automated optical imagery analysis for habitat mapping and change detection, conducting ecotoxicological experiments on deep-sea fauna, and trialing active restoration techniques for cold-water coral communities. The operations on Condor Seamount provided a realistic deep-sea environment to validate these tools and their integration with industry-standard operational practices, navigation, and data management systems.

The MIDAS 2016 cruise aboard the RV Pelagia was a multidisciplinary expedition to the Condor Seamount in the Azores, co-funded by the European Union's MIDAS project (FP7) and Fugro. The expedition aimed to test and demonstrate novel technologies and protocols for environmental monitoring and impact assessment in the context of future Deep Sea Mining (DSM) activities, using an industry-standard ROV and integrated survey systems.

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Statistics

Transits
122 km
Multibeam Bathymetry
km²
Filmed Seabed
63 km
Visited Areas
1
Stations
52
Dives
43
Video Footage Recorded
147 hours
Used Storage
Tb
Samples

Highlights

  1. Successful industry-academia collaboration: The cruise effectively integrated academic research objectives with offshore industry operational standards, demonstrating a model for practical technology transfer and the execution of complex, multidisciplinary deep-sea science.
  2. Demonstration of advanced optical monitoring technologies: Successfully tested and compared methods for habitat mapping and seafloor change detection, including semi-automated 2D/3D image analysis and 3D optical mapping techniques, which are critical for monitoring mining impacts.
  3. Implementation of a full monitoring protocol cycle: Executed a complete pre- and post-impact monitoring study by deploying experimental "lander" structures to simulate disturbance and using optical change detection to assess the resulting alteration to the seafloor.
  4. Pioneering deep-sea ecotoxicology and restoration experiments: Conducted in-situ ecotoxicological tests on the deep-water crab Cancer bellianus and performed field trials of coral transplantation techniques, generating direct data on biological responses to stressors and potential restoration methods.
  5. Completed an intensive 8-day programme with reduced weather or technical downtime, accomplishing over 178 hours of coordinated ROV and camera sled ("hopper") operations across depths from 200m to 1100m.
  6. Comprehensive technology and methodology comparison: Directly compared data quality and efficiency between a work-class ROV and a drop-down camera sled for habitat mapping, and evaluated different optical survey designs (e.g., nested grids vs. transects) for their utility in DSM monitoring.
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Location of operation

Condor

AZORES DEEP-SEA RESEARCH © CRUISES

Stations

MIDAS 2016

Activities

Video survey (NIOZ Hopper towed-camera) Video survey (ROV Cougar)

Scientific crew

Collaborators

Ian M Stewart
Gui Menezes
Andreia Carvalho
Maria Rakka
Timm Schoening
Tim Weiß
Klemen Istenic
Nélia Mestre
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Location

Institute of Marine Sciences — Okeanos, University of the Azores

Departamento de Oceanografia e Pescas — Universidade dos Açores

Rua Prof. Doutor Frederico Machado, No. 4
9901-862 Horta, Portugal

Contact

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