The study emerged from the REGINA-MSP project, funded by the European Maritime, Fisheries and Aquaculture Fund between 2022 and 2024. Researchers from universities, research institutes and national ministries compared eight case study regions at the EU NUTS 2 administrative level: Murcia and Galicia in Spain, Northern Sardinia in Italy, Provence-Alpes-Côte d’Azur and Pays de la Loire in France, Crete and Central Macedonia in Greece, and County Mayo in Ireland. The regions span two sea basins, the Atlantic and the Mediterranean, and were deliberately chosen to capture the full spectrum of maritime spatial planning maturity. Some operate under long-established plans, some under plans adopted only recently, and others under plans still pending formal adoption. The team wanted to know whether a single methodology could work across such institutional diversity, and the answer appears to be yes.

The problem the researchers set out to solve is structural. Maritime spatial planning, or MSP, is valued both as a strategic tool and as a participatory process for reconciling environmental protection, economic growth and social equity. But while some of the earliest planning initiatives emerged at regional and local scales, most famously the zoning system of Australia’s Great Barrier Reef Marine Park, MSP in Europe is now almost universally led by central government. National plans are designed to serve national priorities, which means they can lack the flexibility and detail to account for the ecological, socio-economic and cultural characteristics of individual coastal regions. The strategic nature of most plan provisions allows them to be applied across many decision-making processes, but it raises questions about how well they scale down to the places where planning actually gets implemented.

Responsibility distribution makes the challenge worse. In some countries, regional and local authorities hold formal legal competencies over specific maritime sectors; in others, responsibilities are shared between levels of government; and in some, such as Greece, power is fully centralized with national authorities. This variation produces very different levels of regional involvement in planning and very different degrees to which regional needs actually reach the final documents. The study also highlights persistent gaps in stakeholder participation, fragmented data systems and limited coherence between national strategies and regional or local priorities. The researchers invoke the principle of spatial subsidiarity, which holds that spatial challenges should be addressed at the lowest appropriate territorial level while remaining aligned with broader national and transnational objectives.

The methodological framework itself proceeds in three sequential phases. The first phase identifies regional priorities through a systematic review of spatial plans, policies and datasets, complemented by stakeholder input from regional authorities and sector-specific actors. The researchers developed a typology of regional needs grounded in conventional strategic planning theory, yielding four categories: strategic orientation, meaning the absence or inadequacy of clearly defined long-term visions; data information, covering gaps in both raw data availability and processed information such as cumulative impact analyses; sectoral spatial coexistence, referring to difficulties in managing conflicts and synergies among maritime sectors; and governance and institutional coherence, covering coordination failures across governance levels and limited stakeholder engagement.

The second phase translates the identified needs into concrete actions through a participatory process. Actions were grouped into four typologies reflecting the stages of plan development: strategic and specific objectives that align overarching MSP goals with regional specificities; knowledge base actions that improve the collection, management and use of data; zoning actions that allocate marine space efficiently and prevent sectoral conflicts; and management measures that regulate resource use and establish robust governance mechanisms. Each action co-proposed by case study leaders in collaboration with local actors was reviewed by experts from research institutes, universities and national ministries to confirm its coherence with the challenges identified in the first phase. The final phase prioritizes these actions through a three-stage process: a multi-need assessment gauging how many regional needs each action addresses simultaneously, expert and regional validation of practical feasibility, and an iterative final prioritization ensuring consistency with national and regional planning frameworks.

The comparative analysis yielded ninety-three actions across the eight regions, and the regional specificities are vivid. In Murcia, priorities center on managing unregulated anchoring that damages seagrass meadows and underwater cultural heritage, alongside carrying capacity studies for aquaculture impacts on sensitive maërl habitats. Galicia confronts the collision of traditional sectors like fisheries and shellfish farming with emerging offshore wind energy, and researchers there integrated automatic identification system data with hydrophone recordings to characterize underwater noise along the coast. Sardinia focuses on leisure boating pressures in the La Maddalena archipelago and proposes a Traffic Separation Scheme in the Gulf of Asinara, plus a UNESCO Biosphere Reserve in the Strait of Bonifacio with cross-border involvement. In Provence-Alpes-Côte d’Azur, the central task is operationalizing the national Façade Strategic Document into local plans, supported by the regional geoplatform Monlittoral for data sharing. Crete emphasizes a multi-use strategy balancing tourism with other blue economy sectors, while Central Macedonia needs a regional Marine Strategy and detailed plans for each of its four gulfs. County Mayo, meanwhile, examines how Ireland’s Designated Maritime Area Plan process could empower sub-national planning bodies.

The prioritization exercise revealed which actions deliver the most cross-cutting value. In Murcia, carrying capacity studies ranked highest because they simultaneously address data gaps, sectoral coexistence and governance coherence. In Galicia, displaying geographic information systems layers for offshore aquaculture siting met all four need categories at once. In Crete, the multi-use tourism strategy and the land-sea interaction capacity study were prioritized for their potential to address knowledge gaps while improving the overall planning system. In County Mayo, supporting national Designated Maritime Area Plan guidelines and ensuring coherence between marine and land-use planning emerged as top actions. The pattern suggests that interventions capable of meeting multiple needs simultaneously, validated by both experts and regional authorities, offer the greatest strategic relevance and implementability within ongoing planning processes.

Across the eight case studies, common threads emerged alongside regional differences. Data-driven, evidence-based approaches proved a universal feature, enabling regions to contribute more actively to planning within their territories. Governance represented another shared domain, with France’s Façade Strategic Documents demonstrating strong vertical alignment between national and local priorities, while Ireland, Crete and Central Macedonia illustrated the flexibility of bottom-up mechanisms that empower regional decision-making. Environmental sustainability remained a common priority, with multi-use strategies balancing economic growth and conservation in line with ecosystem-based approaches. The integration of digital tools and participatory mechanisms, including geoportals and spatial decision-support systems, proved decisive for effective implementation, enhancing data transparency and enabling real-time stakeholder feedback.

The study acknowledges real limitations. Integrating regional actions into existing institutional frameworks can be difficult in centralized settings with rigid administrative structures, and planning timelines that differ between regional initiatives and national processes can slow uptake. The lack of dedicated legal instruments for implementation, insufficient funding, limited human resources and uneven political commitment can undermine even well-prioritized actions. The methodology also assumes a level of institutional and stakeholder readiness that may not always exist, particularly in regions where MSP is still emerging. Still, the researchers argue that their framework offers a structured, participatory and transferable methodology for enhancing regional engagement, and that a stronger institutional mandate for regional authorities could enhance the legitimacy and efficiency of national planning processes. The core message is a governance model that recognizes local stakeholders as active contributors rather than passive implementers of maritime spatial planning.

Subject of Research: Maritime Spatial Planning, Marine Governance, Ocean Policy, Regional Framework, EU MSP Directive

Article Title: Toward downscaling maritime spatial planning: a regional framework for tailoring actions to local needs

Article References: Didonna, R., Carella, F., Bocci, M., Delaroche, E., Gómez Gesteira, J. L., Gutiérrez-Ruiz, E., Kyvelou, S. S., Châles, F., Musco, F., O'Hagan, A. M., Papageorgiou, M., Ramieri, E., Woolley, T., & Brigolin, D. (2026). Toward downscaling maritime spatial planning: a regional framework for tailoring actions to local needs. Frontiers in Ocean Sustainability, 4, Article 1802042. https://doi.org/10.3389/focsu.2026.1802042

Image Credits: AI Generated

DOI: 10.3389/focsu.2026.1802042

Keywords: maritime spatial planning, MSP, ocean governance, EU policy, regional planning, marine conservation, blue economy, spatial subsidiarity, coastal management, Frontiers in Ocean Sustainability, Toward, downscaling

The scale of the challenge is enormous. Marine and coastal systems are increasingly shaped by multiple, interacting pressures arising from human activities and climate change, and these pressures do not respect administrative boundaries or departmental portfolios. Policy initiatives such as the European Green Deal, the Marine Strategy Framework Directive, and the Maritime Spatial Planning Directive have established ambitious goals for ecosystem-based management. Yet, as the editorial notes, their implementation often reveals persistent fragmentation across sectors, scales, and institutions. The seven contributions to the Research Topic suggest that transformative ocean planning depends on interconnected changes in three areas: how knowledge is generated and integrated, how policies and institutions are coordinated, and how stakeholders and diverse knowledge systems are involved in planning and decision-making. Each of these pillars, the editors argue, is necessary but insufficient on its own.

The first pillar concerns the analytical machinery that underpins ecosystem-based maritime spatial planning, often abbreviated as MSP. One of the most technically significant advances comes from work on cumulative effects assessment, a method used to estimate the combined impact of multiple human pressures on marine ecosystems. These assessments have long suffered from methodological limitations that made their outputs difficult to use in real-world decisions. The new research refines the way pressures from maritime activities are quantified and interpreted by incorporating magnitude-weighted relationships between activities and the pressures they generate. It also introduces an unsuitability metric based on ecosystem sensitivities, which helps planners identify areas where particular activities are least compatible with the local environment. Interestingly, these refinements do not fundamentally alter the overall spatial patterns that the assessments reveal, but they significantly improve the interpretability and practical applicability of the results, particularly when applied at finer spatial resolutions.

That last point carries real weight for practitioners. In geographically constrained areas, such as crowded coastal seas where every square kilometer may host competing demands, management decisions demand higher levels of accuracy than broad-brush regional analyses can provide. Aligning analytical precision with the spatial scale of the planning challenge is therefore not a technical nicety but a practical necessity. The lesson emerging from this line of work is that cumulative effects assessment is evolving from a somewhat abstract mapping exercise into a decision-support tool that can genuinely inform where activities should and should not occur. For a field that has struggled to translate ecological science into actionable planning guidance, that shift in usability may prove as important as any conceptual breakthrough.

Yet the editorial is emphatic that technical improvements alone are insufficient without a deeper integration of social and ecological dimensions. A second study tackles this gap by operationalizing social-ecological indicators, embedding them within the DAPSI(W)R(M) framework, a structured approach that links human activities to pressures, state changes, impacts, and responses in marine systems. By explicitly connecting ecosystem changes to human wellbeing, the research exposes just how limited existing indicators are in capturing these interconnections. Most current metrics track environmental conditions or economic outputs in isolation, leaving the feedback loops between nature and society largely invisible to planners. The study identifies pathways for developing compound, digitally ready indicators that could bridge this divide, and this is where the work connects to one of the most exciting technological developments in ocean science: Digital Twin initiatives.

Digital Twin Ocean projects, such as SEADITO referenced in the editorial, aim to build dynamic virtual replicas of marine systems fed by integrated data infrastructures. The promise is transformative: planners could simulate the consequences of different management choices before committing to them, testing scenarios for offshore energy development, fishing pressure, or conservation measures in silico rather than through costly trial and error in the real ocean. But a digital twin is only as good as the indicators and data that populate it. The push toward compound indicators that simultaneously reflect environmental conditions and societal outcomes is therefore a prerequisite for making these tools meaningful for governance. If the digital revolution in ocean science proceeds without social-ecological integration, it risks producing dazzling visualizations of a partial reality, blind to the human dimensions that ultimately determine whether policies succeed or fail.

The second pillar of transformation involves the stubborn gap between policy ambition and on-the-ground implementation. Empirical analyses from the French Mediterranean and the wider Mediterranean basin demonstrate that while European policy frameworks are relatively coherent at higher levels in their environmental objectives, this coherence often dissolves during implementation. Administrative complexity, fragmented governance structures, and limited institutional capacity erode well-intentioned directives as they cascade downward. Local authorities in both studies face overlapping mandates, resource constraints, and insufficient mechanisms for stakeholder engagement, all of which hinder effective policy delivery. Anyone who has followed the implementation history of European environmental legislation will recognize this pattern, but the Mediterranean cases also offer grounds for optimism. They document examples of innovation, including multi-actor governance platforms, specialized institutional arrangements, and territorially grounded restoration strategies that enhance coordination and collaboration among actors who previously operated in isolation.

Complementing these case studies, another contribution identifies archetypal patterns of barriers and enablers that recur across governance contexts, providing a broader structural diagnosis of policy incoherence. Fragmented governance roles, weak coordination across the land-sea interface, and insufficient integration across policy domains emerge as recurrent obstacles. On the enabling side, harmonized data systems, knowledge-sharing platforms, and inclusive stakeholder engagement are highlighted as key factors that allow governance systems to function. These findings reinforce the need for governance that is not only better aligned in design but also more adaptive and interconnected in practice, capable of responding to the complexity and dynamic nature of marine socio-ecological systems. The land-sea interface deserves particular attention, since many of the most damaging pressures on coastal waters originate in terrestrial activities, from agricultural runoff to coastal development, yet land-use planning and marine planning typically proceed through entirely separate institutional channels.

The alignment of maritime spatial planning with overarching sustainability agendas forms a third strand of the collection. Researchers developed an operational framework to assess the extent to which existing Maritime Spatial Plans contribute to the European Green Deal, and applied it across several EU countries. The results reveal both progress and remaining gaps. Climate change mitigation is widely reflected in current plans, largely through the expansion of offshore renewable energy, which has become the dominant driver of marine spatial reorganization in European waters. However, other Green Deal priorities, such as ecosystem restoration, the circular economy, and zero pollution, remain less consistently operationalized. This uneven integration highlights the need to move beyond declarative commitments toward concrete, measurable actions, supported by frameworks that enable systematic assessment, comparison, and iterative improvement of planning outcomes over time. Without such feedback mechanisms, plans risk becoming aspirational documents rather than instruments of change.

The third and perhaps most socially resonant pillar concerns who gets a say in ocean governance. A case study from the United States Virgin Islands demonstrates how community-based coral and mangrove restoration workshops can function as powerful sites for co-producing knowledge, integrating local ecological understanding, and fostering culturally responsive restoration strategies. Participants prioritized ecological function, local livelihoods, and intergenerational engagement, a value set that challenges conventional top-down models of decision-making and points toward more relational and community-driven forms of governance. The editorial draws a pointed conclusion from this work: participation is not merely a procedural requirement to be checked off, but a transformative component of effective and legitimate marine management. Taken together, the seven studies identify key enabling conditions and practical pathways for change, including stronger social-ecological knowledge integration, more coherent and implementable policies, greater coordination across sectors and scales, strengthened local capacity, and more inclusive and adaptive planning processes. For a planet whose blue half is changing faster than the institutions meant to steward it, these insights remain pivotal to the continued evolution of ecosystem-based and transformative ocean planning in Europe and beyond.

Subject of Research: Transformative approaches in marine governance and maritime spatial planning

Article Title: Editorial: Navigating change: Transformative approaches in ocean planning

Article References: Depellegrin, D., Li, S., & Kyriazi, Z. (2026). Editorial: Navigating change: Transformative approaches in ocean planning. Frontiers in Ocean Sustainability, 4, Article 1988794. https://doi.org/10.3389/focsu.2026.1988794

Image Credits: AI Generated

DOI: 10.3389/focsu.2026.1988794

Keywords: ocean governance, maritime spatial planning, cumulative effects assessment, Digital Twin Ocean, European Green Deal, policy coherence, social-ecological indicators, participatory approaches, Mediterranean Sea, ecosystem-based management, marine restoration, coastal management

Maritime spatial planning, or MSP, is a public process for analysing and allocating the spatial and temporal distribution of human activities in marine areas to achieve ecological, economic and social objectives. Within the European Union, Directive 2014/89/EU formally recognises cultural heritage as a relevant planning consideration, but its operationalisation across member states has been uneven and conceptually underdeveloped. As offshore wind farms, port expansions, submarine cables, aquaculture and seabed extraction intensify competition for marine space under the European Green Deal, the question of whether shipwrecks and cultural seascapes can claim a seat at the planning table has become urgent. Canoura’s analysis arrives at a decisive moment, because Spain’s next planning cycle is due in 2027.

The research uses a qualitative policy-analysis approach, systematically reviewing Real Decreto 150/2023 and the Diagnostic Reports, Block III, accompanying the five POEMs, which cover the North Atlantic, South Atlantic, the Strait of Gibraltar and Alboran Sea, the Levantine-Balearic area and the Canary Islands. The analysis is framed by the UNESCO 2001 Convention on the Protection of the Underwater Cultural Heritage, to which Spain has been a State Party since 2005, and by critical heritage scholarship and the concept of maritime cultural landscapes. Rather than assessing whether heritage inventories are complete, the study asks how heritage knowledge is translated into spatial planning instruments and how the plans reshape the conditions under which heritage is governed.

The most significant technical innovation of the Spanish framework is the creation of zones of priority use for the protection of cultural heritage, a spatial category that formally acknowledges underwater archaeological remains and culturally significant coastal-marine interfaces as planning concerns. The decree attaches a suite of protective measures to these zones: restrictions on seabed-disturbing activities such as dredging, drilling and anchoring, limitations on bottom-contact fishing gears, mandatory consultation with heritage authorities, and the integration of archaeological assessment into environmental impact assessments. These provisions operationalise existing heritage law within MSP, but the study finds they remain reactive and compliance-oriented, prioritising avoidance of physical damage rather than proactive research, strategic mapping or the integration of heritage values into broader spatial narratives.

The comparative analysis of the five demarcations exposes a striking asymmetry between analytical recognition and operational spatialisation. The Levantine-Balearic demarcation, which contains some of the richest underwater archaeological resources in Spanish waters, including Phoenician, Roman and medieval shipwrecks and submerged harbour structures, offers detailed diagnostic discussion of heritage and its conflicts with tourism, offshore energy and submarine infrastructure, yet designates no heritage priority zones at all. Conversely, the North Atlantic and South Atlantic demarcations, whose diagnostic sections are less detailed, contain the most explicit heritage-related spatial designations. In the North Atlantic, priority zones are linked to emblematic sites such as the Tower of Hercules and to culturally significant coastal-marine interfaces in Galicia and the Basque Country, making it the only demarcation to spatialise landscape concerns meaningfully.

Behind this unevenness lies a governance story. Maritime planning in Spain is coordinated nationally by the Ministry for the Ecological Transition and the Demographic Challenge through the Directorate-General for the Coast and the Sea, but cultural heritage management is highly decentralised, with most responsibilities held by the Autonomous Communities, which maintain distinct archaeological inventories, permit systems and research capacities. Andalusia, through its Centro de Arqueología Subacuática and decades of investment, holds one of the most comprehensive underwater heritage datasets in Spain, and this singular institutional capacity largely drives the extensive heritage zoning in both the South Atlantic and Strait of Gibraltar demarcations. Other regions, such as Cantabria and Asturias, have yet to finalise their inventories. The study concludes that heritage integration depends more on regional institutional capacity than on a coherent national strategy.

Heritage authorities, moreover, typically participate as consultees rather than core planning actors, entering processes at late stages through consultation and environmental assessment rather than shaping spatial priorities from the start. This creates a structural imbalance in which maritime and energy sectors possess consolidated planning mandates, extensive datasets and strong institutional representation, while heritage operates through fragmented regional systems with heterogeneous resources. Data-sharing restrictions designed to protect sensitive archaeological information further limit the incorporation of heritage datasets into publicly accessible planning platforms. The result is a reactive governance model in which heritage authorities respond to proposed developments instead of influencing where development should occur.

The study also identifies a persistent conceptual narrowness. Across all five demarcations, heritage is overwhelmingly represented through tangible, mappable assets: shipwrecks, submerged structures and protected coastal monuments. Intangible maritime heritage, traditional ecological knowledge, navigation routes, fishing grounds and broader cultural-seascape perspectives remain largely absent, a bias the analysis attributes to planning systems privileging knowledge that is spatially fixed, quantifiable and administratively manageable. This contrasts with more advanced European practice: the BalticRIM project framed maritime cultural heritage as a contributor to blue growth and regional identity, Estonia combines archaeological inventories with participatory mapping and cultural-seascape methodologies, Belgium embeds seabed archaeology into offshore licensing, and Scotland’s Historic Marine Protected Areas safeguard everything from vessels to submerged prehistoric landscapes.

Why should anyone beyond planners care? Because heritage, the study argues, is not merely an obstacle to development but a strategic spatial resource. Underwater archaeological sites, historic ports and cultural seascapes drive tourism, regional branding and local economic diversification. Shipwrecks often function as artificial reefs that support marine biodiversity, and many underwater sites overlap with marine protected areas and Natura 2000 networks, offering opportunities for joint cultural-natural management. Heritage also carries strong symbolic and identity-based significance for coastal communities, making it a powerful lever for stakeholder engagement and social acceptance of marine policies, including the contentious energy transition now reshaping European seas.

The conclusions point toward concrete reforms for the 2027 planning cycle: shared geospatial infrastructures, early-stage heritage participation in plan design, cross-sectoral working groups, adaptive instruments such as areas of archaeological potential and layered heritage sensitivity mapping that can operate under data uncertainty, and conceptual tools like maritime cultural landscape corridors and cumulative impact overlays reflecting both ecological and cultural dimensions. The deeper message is that integrating heritage into MSP is not solely a technical or cartographic challenge but a governance issue shaped by institutional structures, epistemic hierarchies and competing policy agendas. Spain’s first-generation POEMs have achieved formal recognition, the study finds, but practical operationalisation remains limited. Whether underwater cultural heritage becomes a constitutive element of marine governance or remains a constraint tacked onto environmental assessments will depend on whether planners learn to see the sea not just as an economic frontier, but as a layered cultural landscape.

Subject of Research: Integration of maritime cultural heritage within Spain's maritime spatial planning framework

Article Title: The role and gaps of cultural heritage within Spain’s maritime spatial planning

Article References: Canoura, L. G. (2026). The role and gaps of cultural heritage within Spain’s maritime spatial planning. Discover Oceans, 3(1), Article 41. https://doi.org/10.1007/s44289-026-00156-y

Image Credits: AI Generated

DOI: 10.1007/s44289-026-00156-y

Keywords: maritime spatial planning, underwater cultural heritage, Spain, POEMs, marine governance, maritime archaeology, cultural seascapes, UNESCO 2001 Convention, blue economy, offshore renewable energy, heritage zoning, EU MSP Directive

The research arrives at a moment when maritime spatial planning, or MSP, has moved from an abstract academic concept to a binding legal obligation in many coastal states. The European Union’s MSP Directive, the marine spatial plans emerging across Asia, Africa and Latin America, and the target under the United Nations Convention on Biological Diversity to protect thirty percent of the ocean by 2030 all demand planning processes that can weigh industrial development against ecological integrity. Yet in practice, planners frequently lack a structured way to answer a deceptively simple question: which sectors depend on which ecosystem services, and what happens to human well-being when those services are degraded or displaced?

The framework addresses this gap by treating blue economy sectors not as isolated actors but as components of a coupled social-ecological system. Each sector, whether it is offshore renewable energy, commercial fishing, maritime transport, aquaculture, tourism or emerging industries such as floating infrastructure and deep-sea resource extraction, is mapped against a portfolio of ecosystem services drawn from established classification systems. These include provisioning services such as food and raw materials, regulating services such as climate regulation and coastal protection, and cultural services such as recreation, heritage and identity. By making these dependencies and impacts explicit, the framework turns what has often been an implicit, intuition-driven judgment into a transparent and auditable analytical structure.

What distinguishes the approach from earlier attempts at integration is its insistence on the socio-economic dimension. Maritime spatial planning has historically been dominated by ecological and engineering considerations, with human dimensions added late in the process or treated as constraints on otherwise technical decisions. The new framework elevates socio-economic priorities to a co-equal pillar of the analysis. Employment, food security, income distribution, cultural values, gender equity and regional development objectives are positioned as the evaluative criteria against which the consequences of sector-service interactions are judged. This means that a planning decision is no longer assessed only by its effect on a habitat or a species population, but by its cascading consequences for the livelihoods and priorities that those ecological functions underpin.

Technically, the framework operates as a structured chain of linkage analysis. In the first stage, sectors are characterized by their spatial footprint, resource demands and pressures on the marine environment, including physical disturbance, pollution, noise, greenhouse gas emissions and biological impacts. In the second stage, ecosystem services are identified and located, often using spatially explicit data layers that show where services are generated and who benefits from them. The third stage constructs the dependency and impact matrices, recording for each sector-service pair whether the sector relies on the service, degrades it, enhances it or competes with other sectors for it. The fourth stage connects these interactions to socio-economic priorities through indicators that can be monitored over time, allowing planners to track whether a given allocation of ocean space is delivering on declared policy goals.

This chain-of-linkages logic has significant practical advantages for planning authorities. It enables cumulative impact assessment to move beyond simply summing pressures and instead to trace how combined pressures alter service flows and, ultimately, human welfare. It supports scenario analysis, so that planners can compare, for example, an aggressive offshore wind build-out against a more diversified allocation that reserves space for small-scale fisheries and coastal protection habitats. It also creates a common language for stakeholders who often talk past one another. A fishing cooperative, an energy developer and a conservation agency can each locate their concerns within the same framework, which reduces the translation problems that have historically made marine planning negotiations slow and adversarial.

The framework is also designed with trade-off analysis at its core. The ocean cannot simultaneously maximize every use in every location, and the concept of the blue economy has been criticized, in some quarters, for promising growth without acknowledging the hard choices that growth implies. By forcing explicit recognition of which services are lost, degraded or gained under alternative planning scenarios, and by tying those changes to named socio-economic priorities, the framework makes trade-offs visible rather than hiding them in aggregated cost-benefit figures. This transparency matters for legitimacy. Coastal communities that see how their priorities were weighed, and where their interests were traded against others, are more likely to accept planning outcomes than communities confronted with decisions that appear to have emerged from a black box.

The study speaks directly to several urgent global policy conversations. The sustainable blue economy agenda promoted by international organizations envisions ocean industries as engines of development, but that vision is credible only if the ecological base of the economy is maintained. The framework provides a mechanism for operationalizing this conditionality: sectors can grow, but the analysis shows where growth erodes the service foundation on which other sectors and communities depend. Similarly, ecosystem-based management, long a guiding principle in marine policy, gains a concrete implementation pathway. Rather than remaining an aspiration, ecosystem-based management becomes a set of defined linkages, indicators and decision points that can be embedded in statutory planning processes.

The timing of the publication is notable. Global commitments to offshore renewable energy are accelerating, aquaculture is the fastest-growing food production sector in the world, and shipping volumes continue to rise even as nations pledge to decarbonize maritime transport. Meanwhile, the recently agreed international agreement on biodiversity beyond national jurisdiction, together with expanding networks of marine protected areas, is adding new layers of regulation to ocean space. Planning systems that were built for a quieter ocean now face simultaneous demands for industrial expansion, biodiversity protection and climate adaptation. The framework offers planners a way to integrate these demands systematically, rather than resolving conflicts case by case after they erupt.

For researchers, the framework opens a research agenda as much as it closes one. The authors’ structure invites empirical application in specific seascapes, where data on service distribution, sector pressures and socio-economic indicators can populate the linkage matrices and reveal whether the framework performs as intended under real institutional conditions. It also invites methodological development: the integration of ecosystem service models with ocean observation systems, the use of participatory mapping to capture local and Indigenous knowledge of service flows, and the coupling of the framework with optimization and simulation tools that can search for planning allocations satisfying multiple priorities at once. As more jurisdictions adopt legally binding marine plans, the demand for methods that can demonstrate the consequences of those plans for both ecosystems and people will only grow. This study provides a credible, general-purpose scaffold for meeting that demand, and its true test will be how quickly it moves from the journal page into the planning rooms where the ocean’s future is actually decided.

Subject of Research: A framework linking blue economy sectors to ecosystem services and socio-economic priorities for integrated maritime spatial planning

Article Title: Linking blue economy sectors to ecosystem services and socio-economic priorities: a framework for integrated maritime spatial planning

Article References: Pegorelli, C., Rayo-Luengo, S., Garcia-Onetti, J., de Andrés, M., Stojanovic, I., & Sanabria, J. G. (2026). Linking blue economy sectors to ecosystem services and socio-economic priorities: a framework for integrated maritime spatial planning. npj Ocean Sustainability. https://doi.org/10.1038/s44183-026-00238-6

Image Credits: AI Generated

DOI: 10.1038/s44183-026-00238-6

Keywords: blue economy, maritime spatial planning, ecosystem services, ocean governance, socio-economic priorities, marine policy, offshore renewable energy, aquaculture, ecosystem-based management, npj Ocean Sustainability, Linking, blue