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Scales for Assessment and Aggregation Methods in Marine Environment: European Commission Workshop

This workshop by the European Commission explores varied approaches used by Member States in reporting marine environment status. It aims to review and develop guidance for assessing and aggregating data, focusing on determining Good Environmental Status (GES) and integrating indicators/criteria for ecosystem-based assessments. The workshop will address nested scales, balancing area divisions, aggregating data without masking problems, and integrating pressure and impact assessments. Preliminary conclusions suggest a need for a comprehensive approach to harmonize regional and EU-level assessments.

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Scales for Assessment and Aggregation Methods in Marine Environment: European Commission Workshop

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  1. GES : scales for assessment and aggregation methods MSCG 12-13 November 2013, Brussels European Commission DG Environment Unit C.2 Marine Environment and Water Industry

  2. Status • Limited guidance in Common Understanding document • Highly varied approaches by MS in 2012 reporting • Project to review approaches and develop guidance (spring 2013-spring 2014) • Draft report on analysis • Workshop with MS 23 October • Work guided by GES Drafting Group • Next steps: • Finalise analytical report • Develop guidance with MS • Need for further work after project?

  3. Preliminary conclusions/principles (1) • Determination of GES: some aspects at EU level (e.g. hazardous substances), some at regional level (ecosystem-specific) • Ecosystem-based subdivision of regions/sub-regions – supplemented with WFD and national boundaries for some descriptors (e.g. HELCOM approach) • Nested scales – allow aggregation from smaller to larger areas) • Link state and pressure scales (but pressure scales typically can be smaller)

  4. Preliminary conclusions/principles (2) • Balance between too many and too few areas – can a nested system fit most/all purposes? • Accommodate administrative and management needed as well as ecosystem-based assessments • Aggregation – important not to mask problem areas (e.g. use proportion of area at GES) • Integration of indicators/criteria – need both pressure and impact assessment

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