1. Introduction
The competition for marine space and the pressures on our ecosystems at sea are increasing due to rapidly expanding ocean activities and climate change dynamics [
1]. Marine and coastal areas have become more industrialised and crowded with growing sectors such as renewable energy [
2]. Climate change impacts the intensities and locations of future human activities, causes increasing conflicts due to its effects on marine ecosystem services, but also increases the need for adaptive management and planning at sea for solving conflicts between human activities [
2], for ecological conservation, and for climate mitigation and adaptation [
1]. Around the globe, marine spatial planning (MSP) has evolved within the last two decades as a new framework to plan our seas in holistic, integrative ways [
3] whilst facing multiple challenges including not only climate change and ecological degradation but also transboundary, cross-country, stakeholder, and institutional integration challenges [
4,
5]. MSP is by definition an adaptive, cross-sectoral process which includes ecological, social, and economic objectives, stakeholder interests, and political and legal processes [
6]. In Europe, this framework was implemented into law in 2014 with the Maritime Spatial Planning Directive (MSPD) which requires all coastal member states to plan their marine waters. The deadline was in March 2021 to have one or more maritime spatial plans in place for all EU marine areas [
7]. Despite this deadline, MSP is an iterative and ongoing process, requiring maritime spatial plans to be updated regularly (at least every 10th year) and ensuring minimum requirements. Among other things, these minimum requirements include considering the environmental, economic, and social impacts of planning decisions, as well as considering risks and safety aspects, using the best available data in planning, including stakeholders in the process, cross-border cooperation, and applying an ecosystem-based approach [
7], as defined in the Marine Strategy Framework Directive (MSFD) from 2008 [
8]. The minimum requirements support each other in different ways. For example, the MSPD requirements for cross-border planning and best available data are highly relevant for understanding the dynamics of ecosystems in whole sea basins as part of an ecosystem-based approach [
9]. The ecosystem-based approach requires human activities at sea to be planned in a way that allows for the use of ecosystem goods and services without causing cumulative impacts on the environment from human activities that are so severe that they destroy the capacity of the ecosystems to sustain themselves [
10,
11].
To balance the many different interests at stake in MSP and to find shared goals for the spatial plan, successful stakeholder inclusion is essential [
12]. The MSPD does not setup any requirements regarding how to include stakeholders but highlights the need to select and include relevant stakeholders early in the MSP process [
7]. The questions of who, why, how, and when to include different people remain highly important for any MSP process [
13]. Benefits from including stakeholders in MSP consist, for example, of reaching support for MSP outcomes among sectors and locals, increasing stakeholder feelings of fairness and empowerment, finding shared goals and synergies in solutions, mobilising local, place-based, and qualitative knowledge, and facilitating transparency of MSP processes [
2,
13,
14]. Spatial decision support tools (DSTs) are useful to utilize existing knowledge by presenting it on maps and to facilitate discussions among stakeholders in online and/or physical workshop settings. Spatial DSTs can enable politicians, planners, and stakeholders to present and discuss different evidence and planning scenarios with different environmental, socioeconomic, and cultural synergy–conflict outcomes of relevance for MSP processes [
15]. Whether they are used in MSP depends on these tools being easily accessible, easily understandable, and not too resource demanding [
16]. A comprehensive survey in the Baltic Sea region highlights the need among MSP practitioners for improved user guidelines and online training on how to use spatial DSTs [
17]. With online tutorials and webinars, more users are likely to use the tools [
18].
One type of spatial DST is CIA tools that can be used to calculate and visualise cumulative impact assessments (CIA) on maps, showing a weighted distribution of where the cumulative pressures from human activities to a lesser or higher degree affect ecosystem components [
19]. CIA tools are very useful in assisting MSP at large planning scales with estimating pressures on ecosystem components based on best available knowledge and best available geographic data and have in Europe been included in Swedish MSP processes for which purpose the SYMPHONY CIA tool was developed [
20]. They enable planners to choose planning scenarios with fewer environmental conflicts, discuss trade-offs between human use and protection, and implement an ecosystem-based approach [
21]. Their planning scale depends on the quality and resolution of existing data, often resulting in larger case study areas with a rough spatial-temporal solution for such tools [
22].
Collaboration projects across the European Sea basins have enabled capacity building and tools development to support the maritime spatial planning processes [
23]. MYTILUS is an example of a newer CIA tool, the development of which was originally initiated by the needs in the Interreg NSR NorthSEE project (
www.northsee.eu, accessed on 23 August 2022), where the need for a freely available CIA tool became obvious. SYMPHONY, for instance, was quite costly [
20]. MYTILUS is also faster and more advanced than older CIA tools such as EcoImpactMapper [
18]. MYTILUS has been further extended during the BONUS BASMATI project to include various tools for scenario building in addition to CIA to support MSP processes.
Pınarbaşı et al. (2017) [
15] argued how “education and training should be a prerequisite to introducing a DST into the MSP process” and that the “importance of educating and training non-technical users, including marine planners and stakeholders may be underestimated by DST developers and advocates”, points supported by Schumacher et al. (2020) [
17] who recommended the development of “user-friendly guidelines” for end-users in public authorities regarding applying spatial DSTs. This research presents the systematic building stones of a new MYTILUS training set developed for a workshop in December 2021 in the Interreg BSR Capacity4MSP project and tested as part of an online PhD course in January 2022 in the ERASMUS+ project Knowledge Flows in MSP in active learning environments. In the following chapter, the theory and methods are presented, followed by the results, discussion, and conclusions.
4. Discussion of Strengths and Weaknesses
Despite the number of respondents being low, the written feedback from the PhD students provided valuable insights into the strengths and challenges regarding how to utilise the MYTILUS tool as an advanced decision support tool in the MSP processes for enabling capacity building and mutual learning within the cross-cultural and interdisciplinary MSP community, drawing on an active learning setting. PhD students are not representative of all end-users of CIA tools. In fact, in the surveys presented in Schumacher et al. (2020) [
17], only researchers and not end-users from public authorities expressed a demand for DSTs to increasingly cover ecosystem-based management. Schumacher et al. (2020) [
17] pointed out a potential reason for this, which was that the concept of ecosystem-based management has only recently been adopted in newer, holistic legislation and policy documents. The authors did, however, notice an increasing mentioning of this concept in recent policy documents and therefore, they soon expect to see an increasing awareness for the needs to include such complex analyses in scientific, systematic tool approaches among end-users in public authorities [
17]. Thus, the feedback from PhD researchers from multiple disciplines and cultures on the training set presented here could thereby be argued to provide useful insights on the further road to improve the integration of CIA into actual MSP through learning-based participatory processes, despite PhD researchers not being representative of all end-users in society.
4.1. Expressed Strengths of MYTILUS—Related to the Training Design
The feedback from the PhD students clearly demonstrated that the training set was useful in increasing knowledge on ecosystem dynamics. For example, one PhD student wrote “I better understand the cumulative impacts”, and another wrote “learning how to interpret and assess impacts […] has also been very insightful”, and a third wrote “This visualisation process has given me a deeper understanding of many abstract concepts” and “the courage to learn ecosystem modelling”. A fourth wrote that MYTILUS “can […] generate a better understanding of what is happening and why it is happening”. Overall, the MYTILUS training set thus seemed to successfully present the CIA approach and MYTILUS in a positive light, increasing the knowledge on ecosystem dynamics. The strong visual communication of MYTILUS through graphs and maps—reflected in the strong use of maps and visuals in the training set as well—was clearly viewed as an advantage.
The increased understanding might very well be linked to the positive feedback on high usability with sentences such as “
MYTILUS itself was a tool rather easy to learn”, “
impressed by the setup”, “
a well-developed tool”, “
user-friendly interfaces”, and “
most people can follow”. One PhD student even recommended MYTILUS for MSP-related participatory processes: “
could well also be applied into participatory processes to promote the engagement of the different MSP stakeholders/actors while favouring reaching consensus among them” and others claimed MYTILUS to be relevant for political decision-making: “
[MYTILUS] can be especially helpful for political decision makings” and “
can have positive impacts on the information out-flow for political decision-makers”. The fast calculations of MYTILUS might play an important role for this praise of the usability of MYTILUS. As Bagstad et al. (2013) [
34] stated, a tool should not take too long to run, since it would make it unsuitable for interactive stakeholder sessions. The training set was successful in communicating the user-friendly aspects of MYTILUS, since it utilised the iterative strengths of the fast MYTILUS calculations to explore systematic changes to overall patterns and sub-statistics.
Furthermore, users need to understand how to use a tool—as well as what it does—to avoid viewing it as a “black box” where its processing steps cannot be followed [
28]. It seemed to be easy to follow the steps of the MYTILUS training set: “
seeing how to use these assessment tools to both gain knowledge of certain areas, but also, interpret it for new areas, have been highly useful”, and another wrote how MYTILUS: “
helped me to imagine MSP scenarios that could guide planning responses beyond the symptoms and towards the root causes of the socioecological system’s issues”. Thus, the training set seemed to have succeeded in providing a learning flow that was easy to follow where inputs were explored before the spatial outputs, and spatial outputs were linked to more detailed sub-statistics. As one PhD participant wrote, “
the course delivery encouraged active participation” through which all participants were able to find the course relevant for their research, as they all evaluated the course to be relevant or very relevant for their own PhD project.
Another strength of MYTILUS that was highlighted in the feedback of the training set was the successful implementation of multiple tools: “
impressed by […] how you have implemented various tools to systematise such challenging layers as different pressure and ecosystems” and “
The integration of all […] tools (and each of them separately too) looks like a relatively easy way forward to translate complex and wicked issues into more affordable planning terms”. This fits well with the need stated in Pınarbaşı et al. (2017) [
15] for “
integrated and multi-functional tools” to support MSP processes. According to Pınarbaşı et al. (2017) [
15], limited functionality of spatial DSTs is one of the main reasons for the infrequent use of them in MSP processes. The training set in this way managed to successfully integrate various functionalities of MYTILUS—including cumulative impacts, spatial scenario adaptation, and multi-use potentials—into a systematic training flow, embracing the need for beginning the road towards more integrative tools, tool presentations, and training setups.
4.2. Expressed Challenges of MYTILUS—Related to the Training Design
A challenge from applying the active and student-oriented learning environment to the development of this training design was the required dedication needed to understand and apply the training material. Some PhD participants found the material to be a bit too resource-demanding but also rewarding regarding the results. For example, one wrote “I had to spend some time understanding the material, but once I had the key points, I found it interesting and not too difficult” and another wrote that the material was “easy to follow, but also challenging”. The PhD participants expressed a need for discussions among each other and with the teachers as well as options to ask questions and provide feedback to support the learning process, but they also evaluated the time dedicated to this to be sufficient. For example, one participant highlighted how there was “enough time for us to ask questions and give feedback” and another praised the “timely discussions on our tasks” and stated how it “really helped us a lot to follow the course”. Such discussions were enabled by the technical inclusion of the online Microsoft Teams forum to host oral discussions, indicating the relevance of such an online communication platform to enable timely/immediate academic exchanges across the world to reach active, collaborative learning as part of an online learning environment. Despite the successful perception of the amount of time distributed for collaborative support, the feedback indicated that active learning requires time for dedication which makes dedication time an important condition for allowing such learning material to foster knowledge.
Despite the apparent, overall success of the MYTILUS training set in providing an easy-to-follow flow and appreciated understanding of the complex topic of ecosystem dynamics, the topic complexity posed some difficulties. One PhD student pointed out how the CIA approach does not consider horizontal neighbour interactions across raster cells: “the effects concerning distance are not considered”. Another remark on the simplicity of the approach was how “it would be nice to include more [biological] levels and try to construct the ecosystem in a more complex and realistic way”. A PhD student pointed out how there was no proven cause–effect relationships between spatial patterns for which reason the MYTILUS setup requires difficult investigations of cause-effect relationships of the inputs and linkages: “one does not know why the ecosystems adjust unless one goes into the baseline and analyse the cause-effect relationships”. While these comments pose some requested improvements of MYTILUS, they also demonstrate how the training set managed to communicate important limitations of MYTILUS. Understanding not only the usefulness of a tool but also its limitations, demonstrates an important overview of the scope of the learning, here acquired through applying the training set to a research-inspired planning area and focus of own choice.
The different requests for more complexity in the methods were closely tied to requests for a better resolution of the spatial-temporal data: “
In terms of temporal measures and spatial variance, more complex baseline data is needed to achieve a real-life scenario of ecosystem responses”. Three of the PhD students directly requested seasonal data to be included to cover seasonal changes. A PhD student, for example, expected “
more severe changes” “
during the summer month” “
which affect the ecosystems and their service supplies”, all “
relevant for important tipping points”. However, as one PhD student pointed out, improvements in data details “
might not be easy because it also depends on the available data.” One PhD student suggested how “
having a direct connection with the ongoing projects would create a more efficient and detailed way of having a good baseline of data”. A challenge from using project-dependent data is the dependency on often time-consuming harmonisation processes to harmonise data for the whole study area—in this case: The Baltic Sea region—which is needed for the data to be comparable across the area in focus [
15].
The findings here indicate that for a training set to be fully successful in encouraging the use of a spatial decision support tool such as MYTILUS, the training setup needs to be more easily transferable to other spatial areas and spatial scales, when users—such as these PhD students—come from outside the tool case study area and/or need different spatial-temporal detail levels. The high requirements in for the CIA data quality from both the spatial-temporal data and the expert-derived sensitivity scores complicates the process of transferring MYTILUS to other geographic areas than the Baltic Sea [
27]. A solution to the challenge in finding data could be to iteratively include the best available data and allow for user inputs to the data through a mixed-method approach as suggested in Koski et al. (2021) [
16]. In this process, the uncertainty of data is a necessity to deal with and communicate to the users, due to the complexity of the CIA method that deals with socio-ecological interactions through an ecosystem-based approach to planning [
16]. As one PhD participant points out, it needs to be considered whether the varying uncertainty of the datasets and the uncertainty overall can be communicated better in the training set without complicating the MYTILUS setup too much: “
to improve the communication of uncertainty for the operationalisation of the ecosystem-based approach into MSP”.
5. Conclusions
The MYTILUS training set presented here was developed through capacity-building MSP projects and tested among PhD students with different backgrounds and expertise. Future research with testing of the training material among more respondents could advantageously provide further inputs to support these first impressions of applying MYTILUS in an online active learning environment. The findings demonstrate how an online training set applied as part of an active learning environment can bring together users from different parts of the world. None of the PhD students were CIA experts, but the training set provided them with knowledge to point out strengths of MYTILUS, of the CIA approach, and of the training set as well as some important challenges to MYTILUS and its data.
Important strengths of the training set design consist of its online format to bring discussions across disciplines and cultures and its abilities to utilise the strong visual communication of MYTILUS by including to a high degree its graphs and maps, the iterative setup from the fast tool calculations, potential options for adapting the material content to own area of research, and a systematic, easy-to-follow structure of the training set starting with exploring input data before outputs and providing a tight connection between spatial patterns and sub-statistics. Additionally, the training set feedback demonstrated the need to combine multiple functionalities in tools and training materials for more integrative planning. These characteristics could be relevant goals for spatial DST training materials to follow.
At the same time, a training set needs to target the important challenges that MYTILUS—similarly to other spatial DSTs, are facing. Challenges exist for spatial DSTs and their training materials to improve their inclusion into actual MSP and reaching end-users and practitioners. An active learning approach can increase the perception of relevancy of the methods among users including planners and stakeholders, but such an approach requires dedication time and thus resources to enable learning. The findings here point towards the need for spatial DSTs to increase the support of spatial-temporal data with seasonal changes, improve ecosystem complexity management, and improve the transferability to other spatial areas than what the example datasets cover by including functionality for users to add their own data to the calculations, amongst other things. Flexibility of tools and user choices followed by clear guiding material might enable MSP planners and stakeholders to see the necessity for spending their valuable time to apply scientific tools and approaches.
Based on the insights of this paper, some recommendations for developing spatial DSTs training material are the following:
Make strong use of visuals such as maps and statistics, make use of fast calculations, and amplify user-friendly aspects of the tool interface;
Consider the learning flow where inputs are explored before spatial outputs, and spatial outputs are linked to more detailed sub-statistics, and where the tasks build on top of each other in a systematic way;
Combine multiple tool approaches to support an integrative tool setup;
Enable time and technical setups for engaging with the material alone and as part of cross-student online discussions, especially for complicated tasks, to enable students to actively find strengths and limitations of the approaches and data;
Allow for user inputs to the data and for students to link the material to their own research.
The development of MYTILUS will continue to expand its tool portfolio to input better data over time and to expand the ecosystem methodology to account for its complexity. In close future, such improvements will include the addition of methods for ecosystem service assessments to better consider the full scale of ecosystem components as well as the values attached to these by humans. This is to strengthen the link within MYTILUS to human activities and human wellbeing. This is one of the key routes for further development of MYTILUS, as humans are causing the pressures but also benefitting from the ecosystems, and such links need more focus in scenario design and MSP. With improved scenarios, methods, capacity-building, and active learning material for cross-sectoral and ecosystem-based planning, we can move towards better futures for our ecosystems and seas in more inclusive ways that utilise participatory and active learning processes.