Ocean & Coastal Management最新文献

{"title":"Offshore wind farms threaten the endangered Brazilian kelp Laminaria abyssalis: a call for urgent nature-positive action","authors":"A.B. Anderson ,&nbsp;H.G. Opsahl-Sorteberg ,&nbsp;L.E.O. Gomes ,&nbsp;P. Horta ,&nbsp;E. Serrão ,&nbsp;A.S. Chapman ,&nbsp;J-C. Joyeux","doi":"10.1016/j.ocecoaman.2025.107737","DOIUrl":"10.1016/j.ocecoaman.2025.107737","url":null,"abstract":"<div><div>Constructions of offshore wind farms over 15,000 km² are planned on the continental shelf - home to the indigenous critically endangered kelp <em>Laminaria abyssalis</em> and are currently under technical evaluation by the Brazilian environmental authorities (the Brazilian Institute of Environment and Renewable Natural Resources, IBAMA). Construction, maintenance and routine activity near the facilities are expected to intensify the anthropogenic pressure on the kelp's restricted habitat (33,000 km²). Monitoring conducted since 2022 by the global RESTORESEAS project has highlighted the danger of a major reduction in the effective niche of <em>L. abyssalis</em>, raising concerns about its possible functional extinction. Immediate remapping of kelp beds combined with marine forest restoration strategies are essential to prevent irreversible loss and secure current biodiversity to face future climate changes.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107737"},"PeriodicalIF":4.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From compound climate risks to adaptive governance: Sectoral economic exposure to heat-drought compound events in coastal China","authors":"Jie Chen ,&nbsp;Aohua An ,&nbsp;Guoping Gao ,&nbsp;Fangyuan Liu","doi":"10.1016/j.ocecoaman.2025.107755","DOIUrl":"10.1016/j.ocecoaman.2025.107755","url":null,"abstract":"<div><div>Compound extremes, such as heat-drought compound extremes (HDCEs), are intensifying with climate change, posing escalating risks to coastal economies. In coastal China, where rapid socioeconomic development intersects with increasing climate hazards, coastal governance faces growing challenges in managing such compound risks. However, limited research has quantified the economic exposure to HDCEs under various warming scenarios, which is crucial for guiding adaptive governance and sustainable coastal development. This study quantifies sectoral economic exposure to HDCEs under 1.5 °C, 2.0 °C, and 3°0 C global warming scenarios, using multi-model climate ensemble and gross domestic product (GDP) projections from the SSP-RCP framework. Results show that total GDP exposure in coastal China in three warming scenarios will increase by 12.54 ± 0.63, 15.38 ± 1.83, and 61.64 ± 8.73 times, respectively, relative to the base period (1995–2014). Notably, northern coastal China exhibits much higher exposure than eastern and southern regions, and the tertiary sector is projected to face the largest increase, reaching up to 125.05 ± 17.70 times under the 3.0 °C scenario. The dominant contribution (48 %–71 %) to exposure increase stems from the interactive effect between climate and GDP change. By linking these findings to sustainable development goals (SDGs) like SDG8 (Decent work and economic growth) and SDG13 (Climate action), this study provides actionable insights for strengthening adaptive coastal governance. We underscore the urgency of prioritizing the tertiary sector and high-exposure regions in climate adaptation plans. These results contribute to the growing body of scholarship that supports climate-resilient, sector-specific, and globally relevant coastal governance strategies.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107755"},"PeriodicalIF":4.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrative capacity enabling integrated oceans management: Insights from Australia","authors":"Maree Fudge ,&nbsp;Liam Fullbrook ,&nbsp;Joanna Vince","doi":"10.1016/j.ocecoaman.2025.107730","DOIUrl":"10.1016/j.ocecoaman.2025.107730","url":null,"abstract":"","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107730"},"PeriodicalIF":4.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the future of work in fisheries: A multi-criteria participatory approach from Spain","authors":"Jesica Sarmiento-Carbajal ,&nbsp;Remedios Cabrera-Castro ,&nbsp;Ángel Rafael Domínguez-Bustos ,&nbsp;Simón H. Aguado","doi":"10.1016/j.ocecoaman.2025.107749","DOIUrl":"10.1016/j.ocecoaman.2025.107749","url":null,"abstract":"<div><div>The fishing industry is facing significant transformations due to technological advances, economic, historical and socio-political factors that impact productivity and labor demand. Despite the economic growth of the sector, fishermen have not always improved their welfare, facing challenges such as overfishing, inequality and globalization. This study assesses the future of work in fisheries through a multi-criteria participatory approach in Spain, using 27 indicators to analyze four key dimensions: social, technological, economic and political. The methodology of cognitive mapping reveals that the economic dimension is the most critical, followed by the social, political, and technological dimensions. The results highlight the need to improve incomes, reduce precariousness and attract talent to the sector. Technological advances can optimize fishery resources, but they can also generate unemployment and inequalities. This study provides a framework for improving the future of work in fisheries and developing governance policies adapted to national circumstances.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107749"},"PeriodicalIF":4.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vulnerability and risk assessment of coastal hazards in India: Insights from bibliometric analysis and systematic review","authors":"Anagha K.H.,&nbsp;Roopam Shukla","doi":"10.1016/j.ocecoaman.2025.107740","DOIUrl":"10.1016/j.ocecoaman.2025.107740","url":null,"abstract":"<div><div>Coastal systems, often exposed to multiple hazards like cyclones, tsunamis, floods, storm surges, sea level rise and erosion, have been identified to be at the forefront of climate-induced risks. Although assessment processes of comprehending the risk and vulnerability level have guided only limited action, these remain valuable tools for an <em>‘objective’</em> means to identify targeted areas focusing on <em>‘particularly’</em> vulnerable. A holistic understanding of how these assessments are conceptualised and operationalised is necessary to understand the challenges that hinder effective translation of the results into actionable decisions. The study combines two complementary methods—bibliometric analysis and systematic review—to synthesise the literature on risk and vulnerability assessment in coastal systems to natural hazard processes. Bibliometric analysis, an established research methodology, was used to analyse trends in publication, author and journal information, hotspot themes and their co-occurrence. A systematic literature review was done to gather specific insights on the regions of study, type of hazards studied, scale of reporting, methods and tools used, indicators used, gaps identified, policy analysis and the reported usability of the risk assessment outputs. We reviewed 178 studies published between 2000 and 2024. The results report (1) nearly twofold growth in studies in the domain of vulnerability and risk assessment in the last 5 years as compared to the previous decade; (2) majority of research focused on the eastern coastal states of West Bengal, Tamil Nadu, Odisha, and Andhra Pradesh; (3) half of the reviewed studies focused on risk or vulnerability arising due to multiple hazards, followed by cyclones (15.7 %); (4) indicator-based assessments were the most commonly used method (63 %); (5) biogeophysical indicators were more commonly investigated than socioeconomic and (6) the administrative level of reporting majorly focussed on villages (37.9 %). After quantitatively analysing previous research based on qualitative assessment, the study reports significant vagueness in definitions of risk (and vulnerability) and conceptual frameworks. Further, the majority of the studies implicitly emphasised assisting in policy formulation but often failed to explicitly address the specific type or stage of the policy process. In conclusion, this study provides a comprehensive overview of the current knowledge on risk and vulnerability assessment for natural hazards in the coastal regions of India.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107740"},"PeriodicalIF":4.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interactions between spatiotemporal dynamics of copepods and hydro-ecological change in marine ranching ecosystems","authors":"Shike Gao ,&nbsp;Zhihua Feng ,&nbsp;Shuo Zhang ,&nbsp;Jikun Lu ,&nbsp;Guanghui Fu ,&nbsp;Lu Lu","doi":"10.1016/j.ocecoaman.2025.107736","DOIUrl":"10.1016/j.ocecoaman.2025.107736","url":null,"abstract":"<div><div>Marine ecosystems are encountering a variety of environmental challenges as a result of global climate change. In response to these challenges, the development and expansion of marine ranching have emerged as a crucial solution. Notably, zooplankton is acknowledged as an essential indicator for evaluating the ecological health of marine ranching. This study examined the spatiotemporal distribution of copepod abundance and its reaction to environmental factors, utilizing data collected from the marine ranching area of Haizhou Bay (Lianyungang, Jiangsu, China) between 2003 and 2022. The results showed that copepod abundance exhibited a notable pattern, with higher levels in spring compared to summer and autumn, and was consistently distributed uniformly in the central region of the marine ranching area. During El Niño years, copepod abundance was more likely to be found outside the bay, unlike non-El Niño years, where the opposite distribution was noted. The generalized additive model (GAM) revealed that the primary environmental factors influencing copepod abundance across various seasons included temperature, SiO₃⁻–Si, NO₃⁻–N, and Chlorophyll <em>a</em>. However, during El Niño events, the key environmental factors shifted to temperature, NO₃⁻–N, and dissolved oxygen (DO). The study concluded that nutrients influence copepod abundance across different climate conditions. During intense El Niño events, temperature was also found to affect copepod abundance indirectly. It was also noted that diatoms are less likely to directly impact copepod abundance through direct predation–prey interactions. The findings of this study provide valuable insights that can enhance our ability to predict changes in zooplankton populations within marine ranching systems as they respond to global climate change. This knowledge is crucial for conducting thorough assessments of the ecological benefits associated with marine ranching and for guiding its sustainable development. Ultimately, this research's data and scientific references generated from this research will be instrumental in evaluating offshore ecological environments and facilitating practical ecosystem restoration efforts.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107736"},"PeriodicalIF":4.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial-temporal distribution of nitrogen and phosphorus nutrients and potential eutrophication assessment in Bohai Bay, China","authors":"Limei Qu ,&nbsp;Pengfei Feng ,&nbsp;Pifu Cong ,&nbsp;Guanfeng Tao ,&nbsp;Hongyang Liu ,&nbsp;Weiyan Duan","doi":"10.1016/j.ocecoaman.2025.107741","DOIUrl":"10.1016/j.ocecoaman.2025.107741","url":null,"abstract":"<div><div>This study analyzes the spatiotemporal distribution characteristics of dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), chemical oxygen demand (COD_Mn), and dissolved oxygen (DO) in Bohai Bay, based on long-term observational data collected from 16 stations between 2020 and 2024. The eutrophication status of the bay was assessed using the eutrophication index (EI), nitrogen-to-phosphorus ratio (N/P), and single-factor pollution index (SFPI). The results indicate a rising trend in DIN concentrations, while DIP levels are declining, leading to an N/P ratio far exceeding the Redfield ratio of 16:1, suggesting a persistent nitrogen surplus in Bohai Bay. Eutrophication levels were found to be higher in spring and summer, with EI values peaking at 3.593 in spring 2024 and 4.705 in summer 2021. Additionally, coastal regions exhibited significantly higher eutrophication levels than the central bay. A strong negative correlation between DO and DIN suggests that nitrogen-driven eutrophication has intensified hypoxia. These findings highlight the combined impacts of human activities and climate change on nutrient dynamics and underscore the need for a balanced approach to nitrogen pollution control and ecosystem response management in the future.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107741"},"PeriodicalIF":4.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lessons learned by addressing challenges to deep-sea conservation planning in the Southeastern Mediterranean Sea: linking science to practice","authors":"Ateret Shabtay ,&nbsp;Alon Rothschild ,&nbsp;Yizhaq Makovsky ,&nbsp;Adi Neuman ,&nbsp;Or Bialik ,&nbsp;Liron Goren ,&nbsp;Tal Idan ,&nbsp;Alex Slavenko ,&nbsp;Shira Salingré ,&nbsp;Yehezkel Buba ,&nbsp;Tamar Guy-Haim ,&nbsp;Barak Herut ,&nbsp;Nir Stern ,&nbsp;Isaac Gertman ,&nbsp;Merav Gilboa ,&nbsp;Gideon Gal ,&nbsp;Eyal Ofir ,&nbsp;Maxim Rubin Blum ,&nbsp;Igal Berenshtein ,&nbsp;Dani Amir ,&nbsp;Sylvaine Giakoumi","doi":"10.1016/j.ocecoaman.2025.107700","DOIUrl":"10.1016/j.ocecoaman.2025.107700","url":null,"abstract":"<div><div>Conservation of the offshore and deep sea is an opportunity that exists today but is rapidly being diminished due to offshore development. Establishing networks of marine protected areas is crucial for conserving biodiversity and enhancing ecosystem resilience to climate change. In response to these needs, we conducted a two-year conservation planning process within Israel's exclusive economic zone in the Southeastern Mediterranean Sea, addressing challenges such as significant data gaps, poor governance, and limited management capabilities. This initiative was led by a local nongovernmental organization (NGO) in collaboration with research institutes. We employed a multidisciplinary approach that integrated existing data through advanced statistical tools, spatial and food-web modeling, and spatial prioritization tools. The plan proposes the establishment of ten protected areas covering 30 % of the exclusive economic zone. The plan prioritizes protection of vulnerable benthic habitats, diverse pelagic regions, and potential climatic refugia while minimizing socioeconomic conflicts. Based on our experience, we provide recommendations on how to incorporate key factors for advancing marine conservation, particularly of ecosystems that are generally out of sight and out of mind of policy makers and the general public. These factors include collaboration across sectors (non-governmental organizations, academia, research institutes, international experts, and governmental ministries), reliance on the best available scientific data, extensive stakeholder engagement, and a planning approach that explicitly allows for adjustments and revisions based on new data and evolving conditions. Our results demonstrate an innovative NGO-driven approach to conservation planning that can guide the establishment of deep-sea protected areas in data-limited and governance-challenged marine regions.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107700"},"PeriodicalIF":4.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coastal vulnerability assessment of the western coastal zone of Bangladesh using a coupled surge-wave-hydrodynamic model","authors":"Maiesha Nujhat ,&nbsp;Md Khairul Amin ,&nbsp;G.M. Jahid Hasan","doi":"10.1016/j.ocecoaman.2025.107720","DOIUrl":"10.1016/j.ocecoaman.2025.107720","url":null,"abstract":"<div><div>Coastal regions of Bangladesh face increasingly complex environmental risks from tropical cyclones, yet comprehensive vulnerability assessments remain limited. This study introduces an innovative approach to coastal vulnerability assessment for the western coastal zone of Bangladesh by integrating advanced geospatial techniques with a surge-wave-hydrodynamic model using Delft3D. By analyzing multiple critical parameters including coastal slope, elevation, sea level rise, tide range, cyclone track proximity, coastline characteristics, and land use/land cover, the study develops a Coastal Vulnerability Index considering the impact of super cyclone Amphan. The methodology synthesizes physical indices through evaluation of spatially distributed vulnerability parameters, reveals that almost 5 % of the studied coastal area can be classified as very highly vulnerable and 85 % area as highly vulnerable. Specific findings highlight extreme risks in districts like Bhola, where around 95 % of the area demonstrates potential of high coastal hazard. This analysis exposes critical limitations of traditional coastal defense mechanisms, as evidenced by 93 complete embankment failures during cyclone Amphan and extensive flooding across multiple districts. By providing a comprehensive data-driven environmental risk assessment, the study offers crucial insights for policymakers, planners, and disaster management professionals, presenting a strategic framework for developing targeted adaptation and mitigation strategies in increasingly dynamic coastal environments.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107720"},"PeriodicalIF":4.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of mangrove age on water quality and deposit sediment layer in integrated mangrove-shrimp farming systems: a case study in Mekong Delta, Vietnam","authors":"Tran Sy Nam ,&nbsp;Pham Thi Ha Nhung ,&nbsp;Dinh Thai Danh ,&nbsp;Huynh Quoc Tinh ,&nbsp;Nguyen Phuong Duy ,&nbsp;Nguyen Nhat Truong ,&nbsp;Ho Vu Khanh","doi":"10.1016/j.ocecoaman.2025.107734","DOIUrl":"10.1016/j.ocecoaman.2025.107734","url":null,"abstract":"<div><div>Water quality plays a crucial role as a natural indicator in evaluating shrimp farming feasibility, closely linked to sediment characteristics. However, knowledge about how mangrove age affects water quality and sediment remains limited in mangrove-shrimp models. This study aimed to address this gap by collecting water and sediment samples from integrated mangrove-shrimp systems with three different mangrove ages in Ca Mau province, Vietnam, where <em>Rhizophora apiculata</em> is the dominant species in these systems. Water samples were collected twice per tide: (1) one day before water discharge for shrimp harvesting, and (2) one day after water intake into grow-out ponds. Sediment samples were taken to display sediment profiles and analyze organic matter. Linear mixed-effects models were employed to identify significant differences in water and sediment parameters among various mangrove age groups. Results indicated that mangrove age substantially affected pH, DO, N-NH₃, H₂S, and total organic carbon, but not N-NO₂, N-NO₃, N-NH₄, and TN. The first sediment layer was thickest in mangroves over 10 years old, followed by those aged 6–9 years, and thinnest in those under 5 years old. Litterfall accumulation in the bottom pond was greatest in older mangrove groups. Findings revealed significant relationships between the first sediment layer and various water parameters, emphasizing the importance of managing this layer for suitable water quality in shrimp farming. Based on linear regression, dredging is recommended if the top sediment layer is approximately 10-cm thick to maintain good water quality. Furthermore, results confirmed that water exchange enhances water quality, potentially promoting shrimp survival and productivity.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107734"},"PeriodicalIF":4.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}