General support is provided by guidance or pilot plans. At the sea-basin level, the HELCOM Guidelines for the implementation of the EBA in MSP refer to the Baltic Sea context and elaborate on the key elements to consider when applying the approach, such as deploying best available knowledge and practice, following the precautionary principle and identifying ecosystem services. The practice includes also the analysis of the relevant legal and policy context for the ecosystem-based approach, such as the Helsinki Convention, HELCOM Baltic Sea Action Plan and the Joint HELCOM-VASAB MSP Principles. Additionally, in the Mediterranean Sea, a Roadmap for implementing the EBA as a guiding principle for the Mediterannean Action Plan Programme of Work was developed, under the auspices of UNEP/MAP Barcelona Convention.

Individual countries have also developed guidance or frameworks for EBA in the context of their national MSP processes. In a practical guidance of the Marine Management Organisation, the CBD Principles for EBA have been modified for application in marine planning in England. Implementation of EBA in MSP in Latvia follows a three step approach: a) analysing best knowledge and practice and identification of ecosystem services, b) finding alternative developments to assess impacts on marine ecosystems and c) applying precaution and mitigation when using an impact matrix. 

The Guidelines developed for the project ECODUMP  are explicitly dealing with the influence of MSP and ecosystem based principles on the search and assessment of new disposal sites at the near-shore of Lithuania. The pilot plan for the Western Gulf of Gdansk developed in the project BaltSeaPlan outlines the preparation of an SEA report for maritime spatial plans in line with the EBA and with the special issue that the planned area contains Natura 2000 sites. The ADRIPLAN methodology provides techniques and methods based on the EBA for practically implementing MSP in the Adriatic-Ionian macro-region. The project BALANCE outlines the concept of blue corridors and how to work with it during practical marine spatial planning processes.

Different studies and tools are providing support when implementing ecosystem-based management. ECOMAGIS developed a complex GIS for an ecosystem-based management through integrated monitoring and assessment of the status of flora and fauna in the Romanian part of the Black Sea. Two practices have developed tools for all sea basins like the MareFrame Decision Support Framework and the ODEMM approach for EBA.

In all MSP contexts, one of the main challenges related to EBA is the evaluation of cumulative effects that may result from the combination of different activities, and the potential lack of a continuous series of data and related assessment tool. Several initiatives are ongoing to investigate how cumulative impact (or effect) assessments can be carried out to support analytical steps in an MSP process, including Strategic Environmental Assessments of plan alternatives. These include:

• The ADRIPLAN Cumulative Impact Tool was developed to evaluate the potential cumulative impacts of various maritime activities on the marine environment in the Adriatic-Ionian macro-region. It was initially developed in the ADRIPLAN project, and then further advanced in the Ritmare project to incorporate methodological advancements related to human and environmental components, and quantification of pressures and sensitivities. The tool is integrated into the Tools4MSP Geoplatform (formerly ADRIPLAN Data Portal) and is used to support MSP exercises within other projects (e.g. SUPREME). 

• The ESaTDOR and Med-IAMER projects investigated typologies of land-sea interactions and developed associated spatial indicators, which were then used in a cumulative impact assessment of environmental pressures. 

• In national MSP processes, Sweden uses the Symphony method to compare the environmental impact of different plan alternatives and assess cumulative impacts. The tool is used in the Strategic Environmental Assessment of the Swedish MSP (under development) to assess ecological risks. Symphony is being further enhanced as part of the Pan Baltic Scope project.

• The SIMCelt project applied two cumulative effects assessment tools - ODEMM to offshore Brittany and Marlin to the Irish Sea – to investigate how to make cumulative effect assessments function for marine planning. Lessons learned include the importance of interpreting maps resulting from an assessment, the need to consider future developments, end user needs, and data availability. SIMCelt also studied at what points in the MSP process is cumulative effects assessment most useful, shown below.

These efforts and several others were presented at an expert roundtable organised by the EU MSP Platform in January 2018. A summary report and presentations are available here. Participants discussed limitations and opportunities for applying cumulative impact tools in MSP and associated Strategic Environmental Assessments, shown in the following table:

Further work is planned on cumulative effects assessment in several projects, such as the SIMNORAT / SIMWESTMED joint working group on a common methodology for cumulative impact assessment. The Pan Baltic Scope project will also work with HELCOM's Baltic Sea Impact Index to further integrate cumulative effects assessments and MSP. 

There is one tool available for the specific region of the North-East Atlantic: from the MESHAtlantic project. It compiles the knowledge of our seas, particularly the seabed habitats, and produces harmonised habitat maps for the Atlantic Area. This includes conversion of existing paper-based maps to digital formats. Examples of mapping Natura 2000 sites are used to test mapping methods.

EU Member States (MS) must ensure that no significant risks or impacts on marine biodiversity, marine ecosystems or human health are posed by legitimate uses of the sea. This is enshrined in the Marine Strategy Framework Directive (MSFD; 2008/56/EC), a piece of EU law, which extends monitoring and assessment of EU seas out to 200 nm.

As such, the main aim of the MSFD is ‘to promote sustainable use of the seas and conserve marine ecosystems through the aim of achieving a Good Environmental Status[1](GES), based upon 11 Qualitative Descriptors[2] by 2020’.

In the MSFD cycle (Figure 1) to achieve GES by 2020, a first step is that MS produce initial assessments of the environmental status for their national parts of the seas. Next, monitoring programmes and programmes of measures (PoMs) are developed, including spatial protection measures.

Image source: Borja, A., Elliott, M., Andersen, J. H., Berg, T., Carstensen, J., Halpern, B.S., Heiskanen, A-S., Korpinen, S., Stewart Lowndes, J.S., Martin, G., Rodriguez-Ezpeleta, N. (2016). Overview of Integrative Assessment of Marine Systems: The Ecosystem Approach in Practice. Frontiers in Marine Science, 3:20. https://www.frontiersin.org/article/10.3389/fmars.2016.00020. Doi. 10.3389/fmars.2016.00020.

On the other hand, the Maritime Spatial Planning Directive (MSP Directive, 2014/89/EU) aims for ‘the sustainable growth of maritime and coastal economies and the sustainable use of marine and coastal resources’.

Despite the fact that each of the Directives have their specific objectives, many authors[3]-[4] have shown the importance of linking these Directive´s efforts (along with others such as the Water Framework Directive (WFD, 2000/60/EC) or Habitats Directive (HD, 92/43/EEC)) in order to attain their objectives in a more coherent way (Figure 2).

Image source: Boon, A., Uyarra, M.C., Heiskanen, A-S., van der Meulen, M.D., Galparsoro, I., Viitasalo, M., Stolte, W., Garmendia, J.M., Murillas, A., Borja, A. (2015). Mapping and assessment of marine ecosystem services and link to Good Environmental Status (phase 1) - Background document to the Roadmap for an integrated approach to a marine MAES. doi. 10.13140/RG.2.2.28660.35204

One possible way of linking both objectives of the MSFD and MSPD could be through the ecosystem-based approach, defined under Main Issues above and discussed in several sources[5].

The MSP Directive sets out 10 key principles which are closely linked to the principles of the ecosystem-based-approach as defined under the Conference of Biological Diversity[6]. These two groups of principles can be related as described in Figure 3[7].

Practical ways on how to integrate ecosystem-based approach principles in the MSP process have been proposed, for example, by the experience in the Baltic Sea[8].

As contemplated in the MSP Directive, this legislative instrument should apply the ecosystem-based approach, as referred to in Article 1(3) of the MSFD, with the aim to ensure that the collective pressure of all activities is kept within levels that are compatible with the achievement of GES[9]. The preamble clearly emphasizes the fact that the monitoring of indicators of GES in the MSFD is a key factor when it comes to assessing the effectiveness of the programs and achieving the anticipated objectives on a regional and local scale[10].

However, the application of the ecosystem-based approach still entails some difficulties as to merge environmental quality management (e.g. MSFD) with MSP and Blue Growth initiatives. The main challenge remains on how to maintain and protect ecological structure and functioning (MSFD) while at the same time allowing the system to produce sustainable ecosystem services from which we derive societal benefits (MSP Directive). Furthermore, uncertainty still exists on cumulative and in-combination effects, footprints of activities and footprints of both Directives (spatial and temporal).

The following table from Gilbert et al, 2015, provides an overview of the main drivers of change coming from maritime activities expected to affect MSFD descriptors: The table distinguishes between: 

1. Drivers potentially subject to spatial planning and the descriptors they are likely to influence (in bold) and
2. Drivers beyond the remit of MSP but with pressures that might need explicit consideration when developing plans.

Possibilities for linking MSFD and MSP Directive's aims exist through:

• making available data collected under MSP as information basis for pressure indicators under MSFD;
• making available data collected under MFSD as information basis for maritime spatial plan assessment (i.e. how well they are performing, if measures to reduce pressures should be put in place, etc.);
• taking into account land-sea interactions;
• an adequate design of monitoring programs for measuring MSFD indicators, assessing predominant pressures and impacts and environmental status of marine waters[11];
• an adequate evaluation of pressures and impacts produced by activities, including cumulative impact assessments;
• setting adequate targets for indicators;
• considering ecosystem boundaries  instead of administrative ones;
• taking into account the assimilative capacity (carrying capacity of the system before breaching GES); and
• regularly undertaking assessments and considering marine ecosystems in a holistic way (including humans as part of the system)[12],[13],[14].

References and further reading:

[1] Concept of GES accommodates the structure, function and processes of the marine ecosystems together with natural physiographic, geographic and climatic factors, as well as physical and chemical conditions including those resulting from human activities in the area concerned.

[2] Qualitative Descriptors (QD) are: Biodiversity; Alien species; Fishing; Food-webs; Eutrophication; Sea-floor integrity; Hydrography; Pollution in the environment; Pollution in seafood; Litter; and Noise/energy.

[3] Boyes, S. J., and Elliott, M. (2014). Marine legislation – The ultimate ‘horrendogram’: International law, European directives & national implementation. Mar. Pollut. Bull. 86, 39–47. doi: 10.1016/j.marpolbul.2014.06.055.

[4] Maccarrone, V. Filiciotto, F., de Vincenzi, G., Mazzola, S., Buscaino, G. (2015). An Italian proposal on the monitoring of underwater noise: Relationship between the EU Marine Strategy Framework Directive (MSFD) and marine spatial planning directive (MSP). Ocean & Coastal Management 118, 215-224. doi: 10.1016/j.ocecoaman.2015.07.006.

[5] Borja, Á., M. Elliott, J. Carstensen, A.-S. Heiskanen, W. van de Bund, 2010. Marine management - Towards an integrated implementation of the European Marine Strategy Framework and the Water Framework Directives. Marine Pollution Bulletin, 60: 2175-2186.

[6] CBD COP 5 Decision V/6 2003. Ecosystem approach.

[7] Ramieri E., E. Andreoli, A. fanelli, G. Artico, R. Bertaggia 2014. Methodological handbook on Maritime Spatial Planning in the Adriatic Sea. Final report of SHAPE project WP4 “Shipping towards maritime spatial planning”.

[8] HELCOM-VASAB 2016. Guideline for the implementation of ecosystem-based approach in Maritime Spatial Planning (MSP) in the Baltic Sea area.

[9] Borja, A., M. Elliott, J. H. Andersen, A. C. Cardoso, J. Carstensen, J. G. Ferreira, A.-S. Heiskanen, J. C. Marqués, J. M. Neto, H. Teixeira, L. Uusitalo, M. C. Uyarra, N. Zampoukas, 2013. Good Environmental Status of marine ecosystems: What is it and how do we know when we have attained it? Marine Pollution Bulletin, 76: 16-27.

[10] Cinnirella, S., Sardá, R., de Vivero, J.L.S., Brennan, R., Barausse, A., Icely, J., Luisetti, T., March, D., Murciano, C., Newton, A., et al., 2014. Steps toward a shared governance response for achieving Good Environmental Status in the Mediterranean Sea. Ecol. Soc. 19, 47.

[11] According to the indications provided in the Commission Decision 2017/848/EU of 17 May 2017 laying down criteria and methodological standards on good environmental status of marine waters and specifications and standardised methods for monitoring and assessment, and repealing Decision 2010/477/EU.

[12] Borja, A., M. Elliott, J. H. Andersen, A. C. Cardoso, J. Carstensen, J. G. Ferreira, A.-S. Heiskanen, J. C. Marqués, J. M. Neto, H. Teixeira, L. Uusitalo, M. C. Uyarra, N. Zampoukas, 2013. Good Environmental Status of marine ecosystems: What is it and how do we know when we have attained it? Marine Pollution Bulletin, 76: 16-27.

[13] Brennan, J., C. Fitzsimmons, T. Gray, L. Raggatt, 2014. EU marine strategy framework directive (MSFD) and marine spatial planning (MSP): Which is the more dominant and practicable contributor to maritime policy in the UK? Marine Policy, 43: 359-366.

[14] Gilbert, A. J., K. Alexander, R. Sardá, R. Brazinskaite, C. Fischer, K. Gee, M. Jessopp, P. Kershaw, H. J. Los, D. March Morla, C. O'Mahony, M. Pihlajamäki, S. Rees, R. Varjopuro, 2015. Marine spatial planning and Good Environmental Status: a perspective on spatial and temporal dimensions. Ecology and Society, 20.