Coastal Communities Research Articles

Public preferences for coastal adaptation: Economic evidence from a discrete choice experiment for hard structures and nature-based solutions in Miami, Florida

Coastal communities are under pressure to adapt to the increasing impacts of climate change and environmental degradation. One strategy to achieve adaptation goals is to deploy hard structures and nature-based solutions that can help reduce damages from flooding, storm surge, and sea level rise in coastal areas. Understanding how local communities perceive and value these measures helps local authorities follow strategies that not only increase efficiency, but also garner public support. In this paper, we used Miami-Dade County as a case study to establish public preferences and trade-offs across hard structures and nature-based solutions and their physical characteristics to address coastal risk reduction: specifically, seawalls and mangroves. By applying a discrete choice experiment, we showed that respondents are generally in favor of deploying any coastal measures, with a higher willingness-to-pay for nature-based solutions over hard structures. We also found that the same respondents identify the length of protected coastline as a valuable feature of these coastal measures. Our findings inform ongoing plans and policies for coastal adaptation, particularly the deployment of nature-based solutions, and also illustrate the importance of including public input in the decision-making process of coastal management policy.

Embedded Complexity of Evolutionary Sequences

Multiple pathways and outcomes are common in evolutionary sequences for biological and other environmental systems due to nonlinear complexity, historical contingency, and disturbances. From any starting point, multiple evolutionary pathways are possible. From an endpoint or observed state, multiple possibilities exist for the sequence of events that created it. However, for any observed historical sequence—e.g., ecological or soil chronosequences, stratigraphic records, or lineages—only one historical sequence actually occurred. Here, a measure of the embedded complexity of historical sequences based on algebraic graph theory is introduced. Sequences are represented as system states S(t), such that S(t − 1) ≠ S(t) ≠ S(t + 1). Each sequence of N states contains nested subgraph sequences of length 2, 3, …, N − 1. The embedded complexity index (which can also be interpreted in terms of embedded information) compares the complexity (based on the spectral radius λ1) of the entire sequence to the cumulative complexity of the constituent subsequences. The spectral radius is closely linked to graph entropy, so the index also reflects information in the sequence. The analysis is also applied to ecological state-and-transition models (STM), which represent observed transitions, along with information on their causes or triggers. As historical sequences are lengthened (by the passage of time and additional transitions or by improved resolutions or new observations of historical changes), the overall complexity asymptotically approaches λ1 = 2, while the embedded complexity increases as N2.6. Four case studies are presented, representing coastal benthic community shifts determined from biostratigraphy, ecological succession on glacial forelands, vegetation community changes in longleaf pine woodlands, and habitat changes in a delta.

Comparison of the Coastal and Regional Ocean COmmunity model (CROCO) and NCAR-LES in non-hydrostatic simulations

Abstract. Advances in coastal modeling and computation provide the opportunity to examine non-hydrostatic and compressible fluid effects at very small scales, but the cost of these new capabilities and the accuracy of these models versus trusted non-hydrostatic codes has yet to be determined. Here the Coastal and Regional Ocean COmmunity model (CROCO, v1.2) and the National Center for Atmospheric Research large-eddy simulation (NCAR-LES) model are compared, with a focus on their simulation accuracy and computational efficiency. These models differ significantly in numerics and capabilities, so they are run on common classic problems of surface-forced, boundary-layer turbulence. In terms of accuracy, we compare turbulence statistics, including the effect of the explicit subgrid-scale (SGS) parameterization, the effect of the second (dilatational) viscosity, and the sensitivity to the speed of sound, which is used as part of the CROCO compressible turbulence formulation. To gauge how far CROCO is from the NCAR-LES, we first compare the NCAR-LES with two other non-hydrostatic Boussinesq approximation LES codes (PALM and Oceananigans), defining the notion and magnitude of accuracy for the LES and CROCO comparison. To judge efficiency of CROCO, strong and weak scaling simulation sets vary different problem sizes and workloads per processor, respectively. Additionally, the effects of 2D decomposition of CROCO and NCAR-LES and supercomputer settings are tested. In summary, the accuracy comparison between CROCO and the NCAR-LES is similar to the NCAR-LES compared to other LES codes. However, the additional capabilities of CROCO (e.g., nesting, non-uniform grid, and realism of ocean configuration in general) and its weakly compressible formulation come with roughly an order of magnitude of additional costs, despite efforts to reduce them by adjusting the second viscosity and speed of sound as far as accuracy allows. However, a new variant of the non-hydrostatic CROCO formulation is currently undergoing prototype testing and should enable faster simulations by releasing the stability constrain by the free surface. Overall, when the additional features of CROCO are needed (nesting, complex topography, etc.) additional costs are justified, while in idealized settings (a rectangular domain with periodic boundary conditions) the NCAR-LES is faster in arriving at nearly the same result.

Disproportionate mental health presentations to emergency departments in a coastal regional community in Australia of first nation people.

Emergency department (ED) presentations for mental health (MH) help-seeking have been rising rapidly in recent years. This research aims to identify the service usage demographic for people seeking MH care in the ED, specifically in this case, to understand the usage by First Nation people. This retrospective cohort study examined the sociodemographic and presentation characteristics of individuals seeking MH care in two EDs between 2016 and 2021. Data were collected using existing records and analysed using descriptive univariate analysis with statistical significance between the two sites determined using chi-squared test, p < 0.05. The overall data presented in this analysis show an overall ED mental health presentation rate of 12.02% for those who identified as 'Aboriginal but not Torres Strait Islander origin', 0.36% as 'Both Aboriginal and Torres Strait Islander' and 0.27% as 'Torres Strait Islander' totalling 12.63%. This is an overrepresentation compared to the regional population of 4.9%. One site recorded 14.1% of ED presentations that identified as Aboriginal and/or Torres Strait Islander, over double the site's demographic of 6.3%. Given the disproportionately high representation of First Nation people in MH-related ED presentations, further research is required to prioritise a First Nation research perspective that draws on First Nation research methods, such as yarning and storytelling to understand the unique cultural needs and challenges experienced by First Nation people accessing MH care via ED. Understanding the demographic is but one step in supporting the Cultural Safety needs of First Nation people. Additionally, research should be designed, governed and led by First Nation researchers.

We need collaboration and co-creation to address challenges facing coastal communities.

Coastal communities across the globe are faced with multifaceted, interconnected challenges with competing environmental, social and economic needs. In rural coastal communities of the Global South, the challenges presented by climate change are complicated by those related to development, resource management and sustainable livelihoods. The rapid growth of such coastal communities exacerbates these challenges and reinforces the need for effective and sustainable governance. Such governance requires a move from top-down approaches to human-centred approaches. Human-centred coastal governance engages multiple stakeholders and combines multidisciplinary knowledge, participatory approaches, co-creation of solutions and multi-institutional partnerships. Here we present case studies from coastal communities in Vanuatu, Ghana and Bangladesh. These illustrate several of the complex challenges facing such communities and the collaborative and empowering strategies that have been used to meet them. Based on these case studies, we present a transdisciplinary framework to inform the co-creation of coastal management strategies that meet interconnected human and environmental needs.

DNA Barcoding Revealed a High Percentage of Mislabeling in Commercial Fish Products: The First Empirical Survey in South Texas

Seafood mislabeling is a widespread problem that have produced a growing distrust of seafood industry. In this study, we examined the prevalence of mislabeling in fish samples from regional markets in the greater Houston area and close-by coastal communities. A total of 63 fish fillet samples were purchased, labeled, and stored at -20˚C in individual packages until DNA extraction. DNA fragments of roughly 700 base pairs encoding cytochrome oxidase I (COI) were PCR-amplified from each DNA sample. With 99.6–100% nucleotide identity in the GenBank and BOLD databases, all samples were correctly identified at the species level. The scientific names identified by DNA barcoding were matched with legally acceptable market names using the US Food and Drug Administration (FDA) Seafood List. Out of the 63 samples examined, 13 samples (20.6%) were mislabeled. Moreover, 24 samples (38.1%) did not use the acceptable market names, indicating that the FDA policy is poorly implemented in seafood industry. The first DNA barcoding survey this area warranted the need of continuous monitoring and the dissemination of the regulation combined with taxonomic knowledge.

Significant Local Sea Level Variations Caused by Continental Hydrology Signals

AbstractSpace gravity missions have enabled the quantification of the mass component of sea‐level rise over the past two decades. Barystatic sea‐level rise is predominantly driven by melting polar ice sheets and mountain glaciers. However, continental hydrological processes also contribute to global sea level change at significant magnitudes. We show that for most coastal areas in low‐to‐mid latitudes, up to half of manometric sea‐level rise is due to changes in water storage in ice‐free continental regions. At other locations the direct attraction effect of anthropogenic pumping of groundwater over the duration of the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow‐On (GRACE‐FO) mission offsets sea‐level rise from ice sheet and glacier melt. If these trends in continental hydrological storage were to slow or stop, these regions would experience greatly accelerated sea‐level rise, posing a risk to coastal settlements and infrastructure, however, for most coastal communities current rates of sea‐level rise would be significantly reduced.

Groundwater in the coastal areas of Ghana: Quality and associated health risks

Self-supply water sources, particularly groundwater sources, play key roles in the water supply ecosystem of developing countries. Recent studies indicate that groundwater sources in coastal communities in Ghana are under threat from improper waste management practices, seawater intrusion and atmospheric aerosol deposition. In this study, Water Quality Index (WQI) and Nemerow's Pollution Index (NPI) were employed to assess groundwater quality in four coastal communities of Ghana. The health risks associated with metal pollution of groundwater were investigated using incremental life cancer risk and hazard quotient. pH of groundwater in all the studied communities were acidic during the rainy season. Electrical conductivity ranged from 0.44 to 2.61 mS/cm in the rainy season and from 0.43 to 2.45 mS/cm in the dry season for the four studied locations. Results also showed brackish conditions and mineralization of groundwater in Winneba, Accra, and Keta. Mean nitrate concentrations in Winneba and Accra were higher than the WHO standards for both the rainy and the dry season. Arsenic was higher than the acceptable level in Accra and Keta during the dry season, while iron was higher than the acceptable levels in Accra in both the rainy and dry seasons. Principal Component Analyses showed that Pb, As, and Fe had the highest loading in the first component in Essiama, while PO43-and Pb had the highest loading in the second component in Accra. WQI showed that the quality of groundwater in all the studied communities ranged from marginal to poor indicating that groundwater in the coastal communities often or usually departs from desirable quality. NPI revealed that NO3- , As, and Fe contribute to groundwater deterioration. Health risk assessment showed that As posed a high cancer risk in Accra and potential cancer risk in Essiama, Winneba, and Keta during the dry season. As also posed potential cancer risk in Accra during the rainy season. Non-cancer health risk was observed for As in Accra and Keta. The findings of this study suggest urgent regulations and monitoring strategies to improve groundwater quality in the coastal communities of Ghana.

Shoreline retreat and beach nourishment are projected to increase in Southern California

Sandy beaches in Southern California are experiencing rising coastal erosion due to changes in precipitation patterns and urban growth. As a result, beach nourishment is necessary for mitigation. In our study, we forecast the rates of shoreline retreat and the required volumes of sand nourishment to mitigate it for the coming decades. We employ photogrammetric multi-decadal shoreline positioning and Digital Shoreline Analysis System methods to measure and predict the coastal evolution of the Gulf of Santa Catalina in Southern California. This region is hypothesized to be globally representative of other semi-arid sandy coasts facing similar hydroclimatic and anthropogenic challenges. Our findings indicate that Southern California’s shoreline retreat rates for sandy beaches will increase from the present average value of ~−1.45 to −2.12 meters per year in 2050 and to −3.18 meters per year in 2100. Consequently, the annual volume of sand required for beach nourishment could triple by 2050, increasing from the present-day amount of ~1223 to ~3669 cubic meters per year per kilometer. However, the associated cost for this nourishment will grow five times, exacerbating several coastal communities’ economic and logistical pressures. Similar trends are emerging globally, with semi-arid developing nations already grappling with coastal hazards and may struggle to manage the escalating costs of curbing beach nourishment.

A comprehensive study on changes in coastal hydrodynamics associated with cyclonic activity

A Mediterranean cyclone is a weather phenomenon capable of producing extremely severe conditions, including heavy rainfall and strong winds. Between March 24 and 26, 2023, a cyclone passed along the western Egyptian Mediterranean coast, spanning three days. This paper aims to investigate the cyclone's impact on wave characteristics, focusing particularly on simulating changes in the energy transported from wind to waves during its passage, which constitutes the core objective of this study. The research methodology involved collecting meteorological and hydrodynamic data over five days from March 23 to 27, 2023, utilizing databases of the Bologna Limited Area Model (BOLAM) and the General Bathymetric Chart of the Oceans (GEBCO). This data, combined with field data for model calibration and validation, was analyzed using the Simulating the WAves Nearshore (SWAN) model packaged within the Delft 3D hydrodynamical model, integrated with other data manipulation tools. (SWAN) demonstrated the ability to simulate energy transport during extreme weather events along the coastal area with high resolution, up to 500 m. The results indicate a significant increase in significant wave height, reaching up to 2.5 m, and disturbances in wind direction, with velocities exceeding 10 m per second. These conditions pose risks to the infrastructure in some cities along the study area and have severe impacts on coastal communities. A notable finding from the simulations is the excess energy transport, which reached up to 12,000 watts per meter over the sea surface during the cyclone. Furthermore, calibration and validation results affirm the (SWAN) model's capability to accurately study wave characteristics.

Developing an integrated framework for Marine Cultural Heritage (MCH) and Marine Protected Areas (MPA) across Africa and the Middle East

There is currently a significant imbalance in existing marine resource management frameworks. Across Africa and the Middle East there is a developing network of marine protected areas focused on natural heritage but with very limited engagement with area-based management for cultural heritage. Yet both natural and cultural heritage resources are subject to the same considerable threat levels from both natural and anthropogenic processes of change. The MarEA project is engaged in an extensive programme of mapping and documentation of endangered cultural heritage sites and landscapes across the MENA region. During the course of this and aligned work, its engagement with coastal communities and international practice has identified a clear need for more informed and holistic approaches to marine resource management. This study presents a model for the integrated management of natural and cultural heritage and proposes a framework for the future identification and designation of Marine Cultural Heritage in Protected Areas.

Understanding Tsunami Evacuation via a Social Force Model While Considering Stress Levels Using Agent-Based Modelling

Given massive events, such as demonstrations in coastal cities exposed to tsunamigenic earthquakes, it is essential to explore pedestrian motion methods to help at-risk coastal communities and stakeholders understand the current issues they face to enhance disaster preparedness. This research targets SDG 11 Sustainable Cities and Communities. It strengthens resilience in coastal areas by implementing a social force model using a microscopic agent-based model to assess the impact of human behaviour on evacuation performance by introducing evacuation stress levels due to a tsunami triggered in central Chile. Two scenarios with two environments and three crowd sizes are implemented in NetLogo. In Scenario 1, pedestrians walk at a relaxed velocity. In Scenario 2, tsunami evacuation stress is incorporated, resulting in pedestrians walking at a running velocity, taking, on average, four times less time to evacuate. We explored more realistic settings by considering the internal susceptibility of each agent to spread tsunami evacuation stress among other evacuees. Results from Scenario 2 show that internal susceptibility effects almost double the mean evacuation time for 200 agents. Findings suggest a trade-off between realism and the minimization of evacuation time. This research is considered a first step toward including stress in tsunami evacuations for sustainable evacuation planning.

Navigating the currents of coastal narratives in search of sustainable futures

In the face of rapid, consequential changes in coastal conditions, coastal communities and regions must make decisions to address these changes and negotiate pathways towards more sustainable futures. Making just and equitable decisions requires engaging the affected population and influential stakeholders in the process. These processes can be improved by considering and engaging with shared narratives present across both time and location. This paper reviews exemplary instances in which narratives have been employed in facilitating decisions in coastal regions, in particular, future-facing-narratives that reflect the social landscape and dynamics operating in parallel with environmental and geographical conditions. Recognizing and learning from these narratives deepens and facilitates making informed, meaningful decisions on complex, contested, value-laden issues facing coastal communities. This paper argues that decisions at scales from local-to-national can be improved by considering shared narratives of sustainability and social identity as central pillars of the negotiation around both governance processes and desirable outcomes.

Climate Resilience, Vulnerability, Differential Impacts and Adaptive Capacity in Nigeria

This research investigates and promotes climate resilience in Nigeria’s vulnerable communities, which are disproportionately affected by climate change. How climate change worsens existing problems such as food insecurity, poverty, and conflict in Nigeria serve as the rationale to this study. Hence, defining climate resilience, reviewing relevant literature, and conducting a case study to generate evidence-based recommendations give insight into the objectives of this study. Therefore, reviewed literature shows the diverse impacts of climate change on disadvantaged groups, such as small-scale farmers and urban coastal dwellers. Vulnerability assessments highlight the need for adaptive capacity, integrating local knowledge in solutions. Case studies illustrate vulnerabilities in poor urban coastal areas, rural regions, and the Niger Delta. Differential impacts are examined, such as the gendered effects of climate change on women and the challenges faced by indigenous communities and urban slums. Adaptive capacity is discussed, stressing social capital, collective action, and the interrelation of adaptation, adaptive capacity, and vulnerability. Adaptive capacity assessment in Nigeria indicates difficulties in rural farming households and urban coastal communities, requiring enhanced capacities. Indigenous knowledge plays a vital role in adaptive measures, fostering resilience. Resilience enhancement strategies emphasize social justice, inclusive governance, and community-based adaptation, acknowledging the significance of local empowerment and participation. Technology and innovation provide possibilities but need context-specific methods. These strategies can help build climate resilience in Nigeria’s vulnerable communities, offering a basis for policymakers, practitioners, and stakeholders to tackle the complex challenges of climate change.

Strategy of Empowering Maritime Defense Areas to Increase the Income of Fisherman Communities and Awareness of National Defense in Banyuasin Regency, South Sumatra (Study at Palembang Naval Base)

Republic of Indonesia Law No.34 of 2004 regulating the Indonesian National Armed Forces Navy Duties in Article 9 Paragraph (e); Implementing the Empowerment of the Maritime Defense Area. The implementation of maritime defense area empowerment is the empowerment of coastal communities through Maritime Potential Development, which is implemented by Main Naval Bases III/JKT, in this case, Palembang Naval Base in Banyuasin district, South Sumatra, which is represented by the coastal area of Sungsan I-IV village, Banyuasin II subdistrict. From the perspective of the Indonesian National Armed Forces, the goal is to carry out the primary mission of the Indonesian Navy, which is to raise awareness of national defense. The main objective of this research is to investigate the strategy for empowering maritime defense areas by Main Naval Base III/JKT, specifically Palembang Naval Base, in terms of increasing coastal communities' economic income and awareness of national defense in Banyuasin district, South Sumatra. The findings of this research reveal that there is no coastal community/fishermen empowerment program in Banyuasin district, South Sumatra that is planned, measurable, and sustainable. According to Chamber, community empowerment is an economic development concept that encompasses social values. This notion reflects a new "people-centered" development paradigm that is participatory and sustainable. The concept of empowerment encompasses more than merely meeting fundamental needs or providing a mechanism to prevent future impoverishment. Conclusion: Coastal community empowerment measures intended to increase fishing communities' earnings along with comprehension of National Defense in Banyuasin Regency, South Sumatra, have not been planned.

Climate Change-Induced Livelihood Vulnerabilities in South Western Coastal Region of Bangladesh

This study focused on the impact of climate change on the livelihood of coastal people. The study used primary and secondary data to complete the study. The climatic components are changing gradually, consequently, the impact of adversity on livelihood is severe in coastal areas. This research has found the perceptions of coastal people regarding climate change and it’s devastation. Coastal people faced change-induced disasters such as cyclones, floods, tidal surges, salinity intrusion, and erosion that affected the coastal communities and their livelihoods. The study found people lost their livelihood sectors, especially agricultural activities, fish farms, fishing culture, cattle farms, business, daily working opportunities, and daily labor. However, due to the challenges during and after the disasters, they cannot easily resume their regular occupations and jobs, including agricultural activities, fishing farms, fishing and cropping businesses, daily labor, seasonal labor, and workers for fishing farms. Furthermore, the coastal people lost their property and lives, particularly settlements, agricultural land, and crops, to climate change-induced adversity. The marginal farmers and laborers are the main losers during and after disasters because they have no backup money for survival. Many of them took loans from local financial institutions and money lenders. The research will provide guidelines for the coastal community and policymakers to mitigate the impact of adversity. Jagannath University Journal of Life and Earth Sciences, 9(2): 163–178, 2023 (December)

Tech-Business Analytics in Blue Economy

Purpose: Utilising cutting-edge technologies, data analytics, and entrepreneurial strategies to promote innovation, develop resilience, and drive sustainable growth are the main goals of Tech-Business projects in the Blue Economy for industries associated to the marine sector. Design/Methodology/Approach: A methodical approach that combines cutting-edge technologies, analytical techniques, and commercial strategies is used to implement Tech-commercial initiatives in the Blue Economy. Findings/Result: The results highlight the revolutionary effect of Tech-Business endeavours in propelling eco-friendly expansion, stimulating creativity, and fortifying the Blue Economy. Stakeholders can open up new possibilities and build a more affluent and sustainable future for coastal communities and marine ecosystems by embracing data-driven initiatives and utilising technology. Originality/Value: The uniqueness of Tech-Business endeavours in the Blue Economy is found in their creative methods of resolving persistent issues and opening up fresh doors in the maritime sector. Paper Type: Exploratory Research on Technology Management.

Influence of ocean alkalinity enhancement with olivine or steel slag on a coastal plankton community in Tasmania

Abstract. Ocean alkalinity enhancement (OAE) aims to increase atmospheric CO2 sequestration in the oceans through the acceleration of chemical rock weathering. This could be achieved by grinding rocks containing alkaline minerals and adding the rock powder to the surface ocean where it dissolves and chemically locks CO2 in seawater as bicarbonate. However, CO2 sequestration during dissolution coincides with the release of potentially bioactive chemicals and may induce side effects. Here, we used 53 L microcosms to test how coastal plankton communities from Tasmania respond to OAE with olivine (mainly Mg2SiO4) or steel slag (mainly CaO and Ca(OH)2) as alkalinity sources. Three microcosms were left unperturbed and served as a control, three were enriched with olivine powder (1.9 g L−1), and three were enriched with steel slag powder (0.038 g L−1). Olivine and steel slag powders were of similar grain size. Olivine was added in a higher amount than the steel slag with the aim of compensating for the lower efficiency of olivine to deliver alkalinity over the 3-week experiment. Phytoplankton and zooplankton community responses as well as some biogeochemical parameters were monitored. Olivine and steel slag additions increased total alkalinity by 29 and 361 µmol kg−1, respectively, corresponding to a respective theoretical increase of 0.9 % and 14.8 % of the seawater storage capacity for atmospheric CO2. Olivine and steel slag released silicate nutrients into the seawater, but steel slag released considerably more and also significant amounts of phosphate. After 21 d, no significant difference was found in dissolved iron concentrations (&gt;100 nmol L−1) in the treatments and the control. The slag addition increased dissolved manganese concentrations (771 nmol L−1), while olivine increased dissolved nickel concentrations (37 nmol L−1). There was no significant difference in total chlorophyll-a concentrations between the treatments and the control, likely due to nitrogen limitation of the phytoplankton community. However, flow cytometry results indicated an increase in the cellular abundance of several smaller (∼&lt;20 µm) phytoplankton groups in the olivine treatment. The abundance of larger phytoplankton (∼&gt;20 µm) decreased much more in the control than in the treatments after day 10. Furthermore, the maximum quantum yields of photosystem II (Fv/Fm) were higher in slag and olivine treatments, suggesting that mineral additions increased photosynthetic performance. The zooplankton community composition was also affected, with the most notable changes being observed in the dinoflagellate Noctiluca scintillans and the appendicularian Oikopleura sp. in the olivine treatment. Overall, the steel slag used here was more efficient for CO2 removal with OAE than the olivine over the 3-week timescale of the experiment. Furthermore, the steel slag appeared to induce less change in the plankton community than the olivine when comparing the CO2 removal potential of both minerals with the level of environmental impact that they caused.

Stakeholder perceptions in mangrove management in the Jaffna Peninsula, Sri Lanka

Mangroves are recognised as social-ecological systems where ecological dimensions constanty interact with human dimensions. In the Jaffna Peninsula of Sri Lanka, mangroves constitute the primary forest type. However, a destructive civil war spanning over 25 years, heavily affected the local vegetation and local inhabitants. Large patches of mangrove forests were damaged and remained inaccessible for a considerable time, compelling most of the population to temporarily abandon their land. This study aimed to investigate the main mangrove goods and services that the local population benefits from and gather opinions of mangrove management stakeholders regarding mangrove conservation in the Jaffna Peninsula through a mixed methods approach. Ethnobiological surveys were conducted with coastal communities, along with Q methodology, expert opinion surveys and additional semi-structured interviews with mangrove management stakeholders. Ethnobiological surveys revealed a significant distancing of local communities from mangrove goods and services. The Q methodology identified three discourses: community-oriented, government-oriented, and mangrove conservation oriented. Expert opinion surveys highlighted encroachment and pollution as major threats to mangroves. Issues raised in the semi structured interviews include challenges regarding land ownership permits during and after the war, weak interactions among different stakeholders with overlapping jurisdiction, failed replantation efforts and scarcity of scientific data for mangrove management. Addressing these issues is crucial not only for fostering effective mangrove management and conservation in the Jaffna Peninsula but also forpotentially benifittingother districts in Sri Lanka and beyond.

Social Entrepreneurship and Impact on Community Empowerment in Indonesia's Coastal Areas

This study uses quantitative analysis to look at how social entrepreneurship and social initiatives affect community empowerment in Indonesia's coastal regions. Key characteristics were measured using a Likert scale in response to a standardized questionnaire completed by 150 individuals who are involved in social entrepreneurship or initiatives. Data analysis was done using Structural Equation Modeling with Partial Least Squares (SEM-PLS). The results show a strong correlation in favor of social entrepreneurship, community empowerment, and social projects. Furthermore, the moderation analysis highlights the significance of stakeholder participation and organizational structure in enhancing the beneficial effects of social initiatives on community empowerment. These findings have implications for social development policy and practice as well as the transformative ability of social entrepreneurship and community-led projects in promoting empowerment within coastal communities.