Lei Chen , Ye Lin , Minquan Guo , Wenfang Lu , Xueding Li , Zhenchang Zhang
{"title":"Dissolved oxygen prediction in the Taiwan Strait with the attention-based multi-teacher knowledge distillation model","authors":"Lei Chen , Ye Lin , Minquan Guo , Wenfang Lu , Xueding Li , Zhenchang Zhang","doi":"10.1016/j.ocecoaman.2025.107628","DOIUrl":"10.1016/j.ocecoaman.2025.107628","url":null,"abstract":"<div><div>This study investigates the prediction of dissolved oxygen (DO) in the Taiwan Strait, a crucial indicator for marine ecosystems. Accurate prediction of DO in coastal waters is critical for various coastal engineering activities. Despite the availability of numerous prediction methods, including numerical models, statistical models, and machine learning approaches, these often fall short when addressing complex dynamic marine areas like the Taiwan Strait. This challenge is partly due to the complexity of the environment and issues with data scarcity. The research focuses on seven buoy stations in the Taiwan Strait and proposes the Attention-based Multi-teacher Knowledge Distillation (AMKD) model, which integrates a multi-channel attention mechanism with a multi-teacher knowledge distillation algorithm, specifically enhancing the accuracy of DO prediction and adaptability to missing data. The model is capable of forecasting DO hourly for the next 24 h, effectively mitigating the randomness and instability associated with DO. Experimental comparisons with state-of-the-art prediction models demonstrate that our approach outperforms commonly used methods in terms of accuracy. Overall, the AMKD model presents a novel and effective solution for predicting DO in complex marine areas, with significant implications for future marine environmental monitoring and management.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107628"},"PeriodicalIF":4.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679275","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}
Kazi Khaled Mahmud , Wahidul Sheikh , Mohammed Mojahid Hossain Chowdhury
{"title":"Decision framework for sustainability assessment of alternative fuels to achieve shipping decarbonization","authors":"Kazi Khaled Mahmud , Wahidul Sheikh , Mohammed Mojahid Hossain Chowdhury","doi":"10.1016/j.ocecoaman.2025.107637","DOIUrl":"10.1016/j.ocecoaman.2025.107637","url":null,"abstract":"<div><div>The transition of shipping industry towards full decarbonization is under way, driven by regulations, the IMO's decarbonization targets, pressure from cargo owners, financial incentives, and evolving societal expectations. However, the need for a comprehensive framework to evaluate fuel options impedes the maritime industry's transition to alternative fuels. Stakeholders are still searching the most suitable alternative fuels which will ensure both the regulatory compliance and economic benefits. Hence, the study aimed to determine the most promising alternative fuel for the shipping industry based on a robust set of alternative fuel selection criteria and establish a comprehensive decision-making framework within a global context using a mixed-methods approach. The study identified an integrated set of sustainability criteria for alternative fuels utilizing systematic literature review framework and adopted the Best Worst Method (BWM) for determining the relative weight of criteria. Finally, the TOPSIS method has been used to outrank the alternative fuels-methanol, hydrogen, biofuel, ammonia, and LNG. The study concludes that methanol exhibits the highest potential as a sustainable future clean fuel, followed by hydrogen, biofuels, ammonia, and LNG respectively. The findings of the study are generalized as a decision support system to assist the stakeholder while making robust and comprehensive decisions about the choice of sustainable fuels through a balanced and all-encompassing view.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107637"},"PeriodicalIF":4.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679273","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":"How blue carbon financing can sustain blue carbon ecosystems protection and restoration: A proposed conceptual framework for the blue carbon financing mechanism","authors":"Ping Li , Dahai Liu","doi":"10.1016/j.ocecoaman.2025.107644","DOIUrl":"10.1016/j.ocecoaman.2025.107644","url":null,"abstract":"<div><div>Blue carbon ecosystems usually have high carbon capture and storage capacity and can play an important role in addressing global climate change. Accordingly, it has become a consensus of the international community to perform fundraising for blue carbon protection and restoration projects through blue carbon finance. However, there is limited knowledge about the mechanism, classification form and investment model of blue carbon finance, restricting the popularity of the corresponding emerging financing tool. In this article, we conducted a systematic literature review and i) systematically discussed the blue carbon international conventions and initiatives, ii) analyzed the current blue carbon trading mechanism and the status of blue carbon project development, and iii) developed a conceptual framework for the blue carbon financing mechanism. We found that the development of blue carbon projects is facing the problem of mismatch between supply and demand. Further. Although blue carbon finance has been practiced in many ways around the world, blue carbon financial innovation and practice are very limited. To address this gap, we developed a framework which builds on three components: blue carbon principles and guidance, blue carbon trading and financial market, and blue carbon projects. We argued that a wide range of blue carbon financial forms should be adopted to expand existing financing channels, propose to classify blue carbon financial products into blue carbon spot, blue carbon trading instruments, financing instruments, and supporting instruments, and provide a systematic overview and examples of the operation mechanisms and principles of different financial instruments. The conceptual framework proposed in this study provides a systematic and comprehensive financial solution for the development of blue carbon projects, offering both theoretical contributions and practical tools for the advancement of blue carbon finance. This research addresses critical gaps in the field and lays a solid foundation for future investment strategies and policy-making in blue carbon finance.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107644"},"PeriodicalIF":4.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679274","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}
Erich Wolff , Gabriel Tenaya Kaprielian , Perrine Hamel
{"title":"Speculative design for climate adaptation: Imagining coastal management strategies in Singapore's future waterfronts through postcards from the future","authors":"Erich Wolff , Gabriel Tenaya Kaprielian , Perrine Hamel","doi":"10.1016/j.ocecoaman.2025.107622","DOIUrl":"10.1016/j.ocecoaman.2025.107622","url":null,"abstract":"<div><div>With rising sea levels, coastal cities are expected to adapt to flooding and changing shorelines in the coming decades. With a growing interest in participatory planning and coastal management, it is key to develop new platforms to involve communities, decision makers and scientists alike in debates about climate adaptation. This article discusses the untapped power of speculative design in allowing society to envision future scenarios of climate adaptation and coastal protection. We draw on the experiences of the project “Adapting Waterfronts: Postcards from the Future, Singapore 2122” to interrogate how speculative visions about the future of waterfronts can support resilience building. The project consists of an exhibition, a virtual reality tour and a subsequent workshop, which provided opportunities for collective discussions on climate change adaptation. Exploring multiple types of knowledge, such as historic archives and scientific projections about sea-level rise, the project constructs new narratives about the political, social and biophysical aspects of coastal management. We discuss how the approach contributes to important debates in coastal management, including how it can (i) bridge historic barriers between different disciplines that are involved in urban planning and coastal management, (ii) foster speculative thinking through the use of augmented reality and (iii) reshape the relationship between researchers and society. This exploration of speculative futures – and the visualization of their implications in the city – has the potential to reshape how we conceptualize, analyse, and design coastal landscapes. Building on these experiences, we highlight gaps and important questions for similar projects aiming to promote scientific communication and education on coastal management strategies. We propose future lines of investigation on how speculative projects can offer opportunities for diverse audiences to connect with the science of climate change and, in doing so, promote collective debates on the topics of climate adaptation and coastal management.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107622"},"PeriodicalIF":4.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessment of heavy metals in surface seawater of Al Hoceima Bay, Northern Morocco","authors":"Zakaryae Koubaa , Bouchra Oujidi , Mounia Tahri , Mohammed Thaiki , Rachida Houssa , Houria Dakak , Hinde Cherkaoui Dekkaki","doi":"10.1016/j.ocecoaman.2025.107624","DOIUrl":"10.1016/j.ocecoaman.2025.107624","url":null,"abstract":"<div><div>The present study provides the first comprehensive assessment of the distribution of heavy metals (Al, Fe, Mn, Co, Ba, Zn, Cr, Ni, As, Pb, Cd) in surface seawater of Al Hoceima Bay, Mediterranean Sea, Morocco, over an annual cycle. Water samples were collected in autumn 2022, winter, spring, and summer 2023 from fifteen sectors covering the entire bay. The analysis involved descriptive analysis, correlation matrices, PCA, and Cluster analysis. Concentrations of Pb and Cd were below detection limits, while Cr and Zn concentrations were below saltwater aquatic life preservation standards. However, As and Ni concentrations reached 49.55 μg/L and 12.71 μg/L respectively during autumn 2022 and summer 2023, exceeding international standards. The HPI indices, calculated using As, Cr, Ni, and Zn concentrations, indicated poor seawater quality during winter (HPI = 69.52) and spring (HPI = 75.08), and totally inadequate quality with likely adverse health effects during autumn (HPI = 114.64) and summer (HPI = 116.79). The study recommends continuous monitoring and integrated management to preserve the bay's biodiversity and ensure future sustainability.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107624"},"PeriodicalIF":4.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654571","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}
Siqi Pan , Zheng Gong , Liang Geng , Guangxuan Han
{"title":"How erosion of salt marsh edges leads to the loss of organic carbon: Insights from Jiangsu coast, China","authors":"Siqi Pan , Zheng Gong , Liang Geng , Guangxuan Han","doi":"10.1016/j.ocecoaman.2025.107642","DOIUrl":"10.1016/j.ocecoaman.2025.107642","url":null,"abstract":"<div><div>Salt marshes are important blue carbon ecosystems, demonstrating significantly higher rates of organic carbon (OC) burial than terrestrial forests, thus playing a crucial role in mitigating global warming. However, these ecosystems are inherently fragile and vulnerable to degradation due to a variety of environmental stressors. An accurate assessment of the carbon sink capacity of salt marshes requires a comprehensive evaluation of OC burial and OC loss. Previous studies have often focused on quantifying OC loss roughly at large scale, while there has been less discussion about adequately addressing the geomorphological processes that drive such losses at finer regional scale. In this study, we investigate OC loss due to edge erosion in the salt marshes of Jiangsu, China, utilizing an integrated approach involving field surveys, remote sensing, and geochemical analyses. The results indicate that soil erosion is the predominant mechanism of OC loss. Furthermore, OC loss within sediments is principally determined by the erosion height and the OC content. The study also finds that autochthonous OC is more susceptible to decomposition and remineralization than allochthonous OC. From 2014 to 2021, the annual OC loss in Yancheng, Jiangsu Province, offset approximately 32 % of the OC sequestration. These findings aim to enhance understanding of OC dynamics in eroded salt marshes and emphasize the necessity for targeted management strategies to maintain the long-term carbon sequestration potential of these critical ecosystems.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"264 ","pages":"Article 107642"},"PeriodicalIF":4.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643467","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":"Relevance of community perceptions in mapping cultural ecosystem services: Lessons from bio-cultural landscape of Bhitarkanika Wildlife Sanctuary, Odisha","authors":"Rupali Nayal , Manu Thomas , Anuj Kumar Tripathi , Kusum Jaswal , Rajarshi Dasgupta , Shizuka Hashimoto , Shalini Dhyani","doi":"10.1016/j.ocecoaman.2025.107626","DOIUrl":"10.1016/j.ocecoaman.2025.107626","url":null,"abstract":"<div><div>The narrative surrounding coastal and marine conservation has largely focused on ecosystem services, viewing nature as a provider of benefits, to shape management practices worldwide. However, there has been a lack of emphasis on the bidirectional relationship between coastal communities and these ecosystems. This includes the Cultural Ecosystem Services (CES) or non-material values they encompass, namely how local populations interact with, perceive, and sustain these coastal seascapes. The present study aimed to explore and understand the relevance of community perceptions for CES within Bhitarkanika Wildlife Sanctuary (BKWS) in Odisha. Employing a Public-Participatory Geographical Information System (PPGIS) approach, we engaged 119 local stakeholders to identify and evaluate non-material values associated with the landscape. The survey encompassed socio-demographic information, ecosystem services derived from different production landscapes, awareness about the landscape changes, and valuation of CES, including cultural disservices. The residents identified 59 locations depicting 6 landscape values. Using interpolation techniques, six maps were computed to spatially characterize the diverse CES perceived by coastal communities. Results highlighted the importance of non-material benefits, with religious and aesthetic values being particularly significant. Regression analysis indicated that factors such as age, gender, etc. significantly influenced the appreciation of non-material values. Hotspot analysis (Getis-Ord Gi∗) identified areas of concentrated CES across varied production landscapes. By aligning community priorities with ecological objectives, the study provides a model with replication potential for sustainable mangrove management that can contribute to coastal conservation and mangrove restoration goals by promoting the synergy of ecological resilience and cultural preservation in coastal governance.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"264 ","pages":"Article 107626"},"PeriodicalIF":4.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642697","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}
Xinjian Wang , Wenjie Cao , Tianyi Li , Yinwei Feng , Özkan Uğurlu , Jin Wang
{"title":"An integrated multidimensional model for heterogeneity analysis of maritime accidents during different watchkeeping periods","authors":"Xinjian Wang , Wenjie Cao , Tianyi Li , Yinwei Feng , Özkan Uğurlu , Jin Wang","doi":"10.1016/j.ocecoaman.2025.107625","DOIUrl":"10.1016/j.ocecoaman.2025.107625","url":null,"abstract":"<div><div>The navigational safety of ships can be impacted by factors such as varying weather conditions, sea states, circadian rhythms and crew physical conditions at different times of the day. Despite numerous studies in the maritime accident field, systematic investigations on the heterogeneous characteristics of accident Risk Influential Factors (RIFs) across different watchkeeping periods remain limited. To address this gap, this study pioneers a multidimensional analysis framework which integrates an Enhanced Multilevel Association Rule Mining (EMARM) algorithm, the Weighted Influence Non-linear Gauge System (WINGS), the Total Adversarial Hasse Diagram Technology (TAHDT), and the Matrices Impacts Croises-Multiplication Appliance Classement (MICMAC). Firstly, the innovative EMARM algorithm is proposed to identify frequent itemsets and enhanced multilevel association rules between RIFs, i.e., at the state level and factor level. Secondly, the WINGS is established in a data-driven manner and employed to elucidate the causality among these RIFs, providing insight into their interactions. Thirdly, the improved TAHDT, a game theory-based method is utilized to establish hierarchical relationships between RIFs, revealing critical interdependencies and causal pathways. Finally, based on the driving forces and dependencies of RIFs, the MICMAC is applied to classify the RIFs and dig their roles within the system. The results indicate a significant heterogeneity in the critical RIFs across different watchkeeping periods, such differences highlight the unique needs of safety management strategies in each period. By clarifying the challenges, the proposed framework offers a new perspective for improving bridge resource management onboard and further contributing to reducing accident occurrences.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"264 ","pages":"Article 107625"},"PeriodicalIF":4.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zheng Wan , Anwei Nie , Jihong Chen , Chuan Pang , Yusheng Zhou
{"title":"Transforming ports for a low-carbon future: Innovations, challenges, and opportunities","authors":"Zheng Wan , Anwei Nie , Jihong Chen , Chuan Pang , Yusheng Zhou","doi":"10.1016/j.ocecoaman.2025.107636","DOIUrl":"10.1016/j.ocecoaman.2025.107636","url":null,"abstract":"<div><div>The need to cut carbon emissions has placed global ports in a strategic position regarding the fight against climate change. This paper reviews the challenges, technological innovations, and opportunities that face efforts to retool ports into low-carbon operation centers. Ports are significant contributors to greenhouse gas emissions through vessel-related activities and operational processes. Improved international legislation, including a plan of action put forward by the International Maritime Organization, shoreside power supply, alternative fuels, and other green technologies are major propellers to new port design changes. The paper calls for cooperation from all stakeholders, applies holistic methods of valuation through data envelopment analysis and life cycle assessment, and discusses integration with smart technologies. Case studies of leading global ports-including the European Union Green Ports Program and the Belt and Road Initiative-underline how the goal for a hub of innovation in sustainable maritime logistics can be attained. <span>Global</span> coordinated action, full policy support, and institutional collaboration at all levels can make this goal of carbon reduction targets achievable in a balance with economic growth and environmental responsibility.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"264 ","pages":"Article 107636"},"PeriodicalIF":4.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628635","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":"Industrial intelligence and marine pollution in coastal cities: A Chinese city-level study","authors":"Jiayu Tian, Jie Xie","doi":"10.1016/j.ocecoaman.2025.107621","DOIUrl":"10.1016/j.ocecoaman.2025.107621","url":null,"abstract":"<div><div>Industrial intelligence has greatly propelled industrial development, while having a profound impact on the environment. This study, using data from 48 coastal cities in China and their local enterprises, employs a two-way fixed effects model to examine the impact and mechanisms of industrial intelligence on marine pollution. By integrating macro-level city data and micro-level enterprise data, this study innovatively reveals an inverted U-shaped relationship between industrial intelligence levels in coastal cities and marine pollution, which is primarily mediated by industrial energy optimization and economic development. Initially, more industrial intelligence may increase pollution, but after a certain point, it can help reduce it. Additionally, urban innovation capacity and environmental regulatory intensity play crucial roles in modulating this relationship, particularly through the adoption of clean technologies and enhanced pollution standards. Compared to previous studies, this paper firstly unveils the nonlinear relationship between industrial intelligence levels and marine pollution, as well as the specific mechanisms behind it, filling a gap in the existing literature. These findings provide compelling empirical evidence and policy insights for sustainable coastal management in developing economies, emphasizing the synergistic relationship between industrial intelligence and environmental protection, which offers empirical or theoretical support for achieving green transformation.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"264 ","pages":"Article 107621"},"PeriodicalIF":4.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628636","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}