{"title":"Green shipping corridors: An overview of Pacific Northwest region and key ports","authors":"Saeid Hassankhani Dolatabadi , Peyman Ghaforian Masodzadeh , Haris Ishaq , Curran Crawford","doi":"10.1016/j.ocecoaman.2025.107745","DOIUrl":"10.1016/j.ocecoaman.2025.107745","url":null,"abstract":"<div><div>The Pacific Northwest to Alaska Green Shipping Corridor (GSC) represents a crucial step toward decarbonizing maritime transportation along one of the world's most active cruise routes. This study conducts a comprehensive assessment of sustainability efforts at four key ports - Vancouver, Seattle, Prince Rupert, and Juneau - analyzing their emission reduction strategies, shore power adoption, alternative fuel initiatives, and regional collaboration efforts. A mixed-methods approach is employed, integrating qualitative analysis of port sustainability reports, policies, and industry frameworks with quantitative data on Greenhouse Gas (GHG) emissions and shore power utilization. The findings indicate that Vancouver and Seattle ports lead in shore power deployment and policy alignment, whereas Prince Rupert and Juneau ports face infrastructural and regulatory challenges that hinder full decarbonization. While GSCs provide valuable case studies, the Pacific Northwest GSC requires enhanced cross-border coordination, financial incentives, and infrastructure expansion to accelerate the transition to low-carbon maritime operations. This research identifies key technological, economic, and policy barriers while providing strategic recommendations to stakeholders, including policymakers, port authorities, and industry leaders. The study highlights the potential for alternative fuels, the role of shore power, and the necessity for harmonized regulatory frameworks to achieve a viable green corridor. Ultimately, this paper contributes to the broader discourse on sustainable maritime transportation, emphasizing the need for a multi-stakeholder approach to achieve net-zero emissions goals in the shipping industry.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"269 ","pages":"Article 107745"},"PeriodicalIF":4.8,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144223367","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}
Shuo Ding , Dantong Liu , Yangzhou Wu , Shiwen Cao , Shitong Zhao , Bin Xu
{"title":"Quantifying the contribution of ship emissions to black carbon pollution along the coast of the East China sea using machine learning approach","authors":"Shuo Ding , Dantong Liu , Yangzhou Wu , Shiwen Cao , Shitong Zhao , Bin Xu","doi":"10.1016/j.ocecoaman.2025.107784","DOIUrl":"10.1016/j.ocecoaman.2025.107784","url":null,"abstract":"<div><div>Ship emissions are a significant source of atmospheric black carbon (BC) aerosols, impacting both human health and climate, particularly in nearshore marine environments. However, the influence of ship activity on BC pollution and its extent remains poorly constrained. In this study, we quantified the contribution of ship emissions to BC pollution along the East China Sea coast near the Ningbo-Zhoushan harbor during the fishing season. This was achieved using an Extreme Gradient Boosting (XGBoost) model combined with ship activity data obtained from Automatic Identification System (AIS) signals. Our findings reveal that ship speed and ship count are critical factors influencing BC mass variability, alongside seasonal changes in emission intensity (reflected by Unix time) and meteorological factors. Increased ship speeds, particularly for fishing vessels (over 6 knots), and higher ship counts were generally associated with elevated BC mass concentrations. By training the XGBoost model on data from non-ship periods, we effectively separated BC contributions from ship emissions during the entire observation period. Ship emissions were found to contribute 10 %–60 % of the total BC mass, exhibiting a characteristic diurnal pattern with higher contributions in the morning and evening rush hour, corresponding to ship departures and returns at the port. These results underline the potential of machine learning approaches for evaluating ship emissions and highlight the significant role of ship activity in BC pollution in the nearshore environments of the East China Sea.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"269 ","pages":"Article 107784"},"PeriodicalIF":4.8,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144223443","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":"Climate information to action: Challenges for Baltic beach management","authors":"David Cabana, Louis Celliers","doi":"10.1016/j.ocecoaman.2025.107777","DOIUrl":"10.1016/j.ocecoaman.2025.107777","url":null,"abstract":"<div><div>Climate change is altering coastal environments in the Baltic Sea region, affecting both terrestrial and marine ecosystems. These changes pose substantial challenges to coastal communities, particularly those reliant on tourism. While beach managers recognise threats such as infrastructure durability and non-indigenous species introduction, effectively integrating climate information into management decisions remains challenging. This study explores information sources, formats, and capacity gaps hindering climate change adaptation among Baltic Sea beach managers. Our findings reveal a critical knowledge-practice gap: only half of beach managers actively incorporate climate data into decision-making, despite recognising climate threats. To bridge this gap, we recommend developing user-friendly digital tools, implementing targeted training, and fostering cross-sector collaboration. Providing accessible, context-specific climate services would enhance managers' capacity to interpret and apply climate data effectively. A scientist-practitioner partnership approach could transform coastal management from reactive to proactive, safeguarding Baltic beaches and local economies against climate-related challenges.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"269 ","pages":"Article 107777"},"PeriodicalIF":4.8,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144223444","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":"Maritime image defogging algorithm for maritime management promotion in sea fog environment","authors":"Yubo Wang , Rong Zhen","doi":"10.1016/j.ocecoaman.2025.107783","DOIUrl":"10.1016/j.ocecoaman.2025.107783","url":null,"abstract":"<div><div>Maritime vision system is an important part of the shipping industry. In a sea fog environment, the images collected by the imaging equipment are blurred, seriously affecting the stability of the maritime vision system and reducing the efficiency of maritime management. Most of the existing image defogging algorithms are aimed at shore scenes, so it is of great significance to study maritime image defogging algorithms. This paper proposes a simple and effective defogging algorithm for maritime images to solve the shortcomings of existing algorithms in ocean scenes. We propose a transmission estimation method based on the variogram function, which can accurately obtain the transmission of different brightness parts of the image. To refine the transmission and atmospheric light, we employ the weighted guided filtering and quadtree search method to facilitate the defogging effect. Experimental results show that this algorithm can effectively improve the color distortion phenomenon in the sky area of the image and has a better image-defogging effect. It is also better than other comparison algorithms in subjective and objective evaluation.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"269 ","pages":"Article 107783"},"PeriodicalIF":4.8,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213277","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}
Quande Qin , Lan Luo , Fengjie Liao , Yongzhang Liu , Jihong Chen , Chuan Pang
{"title":"Tracking offshore wind technological evolution through patent text mining: A macro-micro analysis framework","authors":"Quande Qin , Lan Luo , Fengjie Liao , Yongzhang Liu , Jihong Chen , Chuan Pang","doi":"10.1016/j.ocecoaman.2025.107780","DOIUrl":"10.1016/j.ocecoaman.2025.107780","url":null,"abstract":"<div><div>Offshore wind generation is widely recognized globally as a key technological pathway for achieving energy transition under carbon neutrality goals. Tracking the development trajectory of offshore wind technology (OWT) becomes essential for maintaining competitiveness in the global market. While existing studies have explored OWT development through expert knowledge and qualitative methods, few have quantitatively examined its detailed evolution paths. This study proposes a novel macro-micro analysis framework leveraging patent text mining methods. The framework aims to uncover both the overall development patterns and detailed technical evolution paths of OWT, informing decisions across academia, policy, and industry. At the macro level, the analysis depicts global innovation trends, major patent applicants, and the distribution of technology categories. The tracking results reveal distinct regional innovation patterns and highlight the leading role of government in offshore wind development. At the micro level, the framework identifies the technical evolution paths across three major fields, revealing key R&D hotspots and lifecycle stages of sub-technical categories. Through systematic patent text mining and multi-level analysis, this study contributes to a comprehensive understanding of OWT development trajectory and provides evidence-based support for future technology planning and innovation strategies.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"269 ","pages":"Article 107780"},"PeriodicalIF":4.8,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205696","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}
Jinyu Xu , Jihong Chen , Jinyang Li , Jia Shi , Houqiang Jiang , Qiang Mei , Yinuo Liu , Jutong Liu
{"title":"Transitioning to clean energy in global shipping: Country-based differences and industrial chain collaboration","authors":"Jinyu Xu , Jihong Chen , Jinyang Li , Jia Shi , Houqiang Jiang , Qiang Mei , Yinuo Liu , Jutong Liu","doi":"10.1016/j.ocecoaman.2025.107752","DOIUrl":"10.1016/j.ocecoaman.2025.107752","url":null,"abstract":"<div><div>International shipping, responsible for over 90 % of global trade, also generates significant emission. To meet the emission reduction targets set by the International Maritime Organization (IMO), the development of a low-carbon shipping energy system has emerged as a global consensus. This study compares the technical characteristics and emission reduction effectiveness of various alternative fuels and analyzes the phased transition in different countries. Three major challenges are identified: uncertain alternative energy choices, insufficient industry incentives, and an underdeveloped industrial framework. Then the study proposes solutions from the perspectives of country-based differences and industrial chain collaboration, focusing on alternative energy selection, enhancing incentives, and innovations in cross-industry governance. It offers targeted recommendations to support the sustainable development of the global shipping industry.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"269 ","pages":"Article 107752"},"PeriodicalIF":4.8,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195492","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}
Qi Ding , Xiujuan Shan , Xianshi Jin , Harry Gorfine , Jiting Sun
{"title":"Measuring the performance of marine fisheries in China based on two representative case studies","authors":"Qi Ding , Xiujuan Shan , Xianshi Jin , Harry Gorfine , Jiting Sun","doi":"10.1016/j.ocecoaman.2025.107779","DOIUrl":"10.1016/j.ocecoaman.2025.107779","url":null,"abstract":"<div><div>Assessing fisheries performance along ecological, social, economic, and institutional dimensions is crucial to comprehensively understanding the impact of management reforms on the current state of fish stocks and fishery sustainability. Using official fishery statistics, scientific survey data, and expert assessments, this study evaluates the performance of two representative marine fisheries in China, including the anchovy (<em>Engraulis japonicus</em>) fishery in Shandong and the mantis shrimp (<em>Oratosquilla oratoria</em>) fishery managed under a catch quota system in Tianjin. Results showed that the SAT-fish tool offered more comprehensive results when compared with FPIs applied to fisheries in China. The mantis shrimp fishery had better ecological, economic, and governance outcomes but both fisheries had very high social performance. Comparing the performance of the studied fisheries with the global top 10 % performing fisheries revealed that the mantis shrimp fishery was doing relatively well in twelve out of the sixteen dimensions, with strong management measures have been put in place. In contrast, improvements are needed especially in the Governance pillar of the anchovy fishery. The results provide a comprehensive overview of the current status of these marine fisheries, useful in guiding and prioritizing the planning of policies by taking into consideration weaknesses identified in each of the dimensions that we evaluated.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"268 ","pages":"Article 107779"},"PeriodicalIF":4.8,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190487","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}
Gabriela de Abreu , Irene Olivé , Sebastian Villasante , Mónica Expósito-Granados , Pablo Pita , Jone Molina-Urruela , Emilio Fernández , Gonzalo Méndez-Martínez , Antonio J. Castro
{"title":"Participatory mapping of marine ecosystem services in the Cabo de Gata-Níjar Natural Park (Spain)","authors":"Gabriela de Abreu , Irene Olivé , Sebastian Villasante , Mónica Expósito-Granados , Pablo Pita , Jone Molina-Urruela , Emilio Fernández , Gonzalo Méndez-Martínez , Antonio J. Castro","doi":"10.1016/j.ocecoaman.2025.107763","DOIUrl":"10.1016/j.ocecoaman.2025.107763","url":null,"abstract":"<div><div>Marine ecosystems are a source of ecosystem services for people globally. Recent efforts for marine conservation and preservation of marine ecosystem services (MES) have increased worldwide through the creation of marine protected areas (MPAs). However, standardized methods for integrating MES in MPAs planning and management remain poorly assessed. Here, based on knowledge from expert and local stakeholders, we applied participatory mapping technique to assess the spatial distribution of MES in the MPA of Cabo de Gata-Níjar Natural Park (SE Spain) with the goal of informing its spatial planning. Firstly, we conducted in-depth semi-structured interviews with key local stakeholders and experts to elicit their knowledge regarding MES importance. Secondly, we evaluated the spatial distribution of MES delivery within the Cabo de Gata MPA boundaries. Finally, we characterized and mapped the hotspots of MES delivery within the MPA. Additionally, this methodological approach allowed to map cultural MES, traditionally overlooked since they are difficult to assess in marine systems. Overall, local stakeholders and experts perceived that the study area has a high capacity to provide MES to people, specifically habitat maintenance, scenic landscape values, environmental education, and local knowledge. A high spatial variability of MES delivery was observed within the MPA, with regulating MES concentrated in the integral reserve areas (i.e., core zone of maximum protection) and cultural MES along the coastline. Hotspots of regulating MES overlapped core zones, while hotspots of cultural MES pointed out new areas within the MPA that demand attention by managers. Finally, we reflect on the utility of including participatory mapping procedures in management and planning of this and other marine protected areas.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"268 ","pages":"Article 107763"},"PeriodicalIF":4.8,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178699","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}
Helio H. Checon , Beatriz P. Cunha , Yasmina Shah Esmaeili , A. Cecília Z. Amaral , Omar Defeo , Guilherme N. Corte
{"title":"Beyond “paper parks”: integrating marine fauna into Brazilian protected area management","authors":"Helio H. Checon , Beatriz P. Cunha , Yasmina Shah Esmaeili , A. Cecília Z. Amaral , Omar Defeo , Guilherme N. Corte","doi":"10.1016/j.ocecoaman.2025.107759","DOIUrl":"10.1016/j.ocecoaman.2025.107759","url":null,"abstract":"<div><div>Protected Areas (PAs) are crucial for preserving species, promoting sustainability, and meeting global agreement targets. However, their effectiveness may be compromised by insufficient inclusion of biodiversity in their management plans. This study assessed the extent to which marine fauna is incorporated into the management plans of Brazilian coastal and marine PAs. We reviewed 144 Brazilian PAs and found that only 82 (57 %) have management plans. Of these, the majority (61 %) are designated as sustainable use areas, where resource extraction and human occupation are permitted, rather than no-take zones offering stricter protection. Our analysis revealed a predominant focus on terrestrial vertebrates, while marine diversity is often limited to a few economically important species. Key ecological groups, such as marine invertebrates, are largely overlooked in all sections of management plans (i.e., assessment, zoning, and planning). These gaps may result in ineffective conservation outcomes due to ad hoc decision-making, conflicting land uses, and poor alignment with biodiversity objectives. To enhance the ecological effectiveness of Brazil's coastal and marine PAs, management plans must be developed for all existing PAs and revised to explicitly incorporate local marine biodiversity into the assessment and development of management strategies.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"268 ","pages":"Article 107759"},"PeriodicalIF":4.8,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170791","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":"Mitigation measures to reduce seabird's interactions with bottom-set nets in southern Iberia","authors":"Magda Frade , Flávia Carvalho , Vighnesh Samel , Nuno Oliveira , Ana Almeida , Joana Andrade , Jorge MS. Gonçalves , Ana Marçalo","doi":"10.1016/j.ocecoaman.2025.107767","DOIUrl":"10.1016/j.ocecoaman.2025.107767","url":null,"abstract":"<div><div>Bycatch poses a significant threat to seabird populations globally. On the southern coast of mainland Portugal, mitigation measures were tested to reduce seabird interactions with fishing vessels. Between 2021 and 2023, this study evaluated the effectiveness of a visual deterrent (a 'scarybird' device), an acoustic deterrent (megaphone broadcasts), alongside modification in fisher's behaviour discard management— avoiding discards during fishing operations to minimize seabird interactions. Observers monitored 166 fishing events, comparing control and experimental treatments. Discard management was the most effective deterrent, significantly reducing seabird abundance, particularly gulls (<em>Larus</em> spp.) and northern gannets (<em>Morus bassanus</em>). Model predictions indicated a 37 % and a 47 % reduction in the abundance of gulls and northern gannets, respectively, around commercial fishing vessels when discard management was used. This practice effectively kept a substantial proportion of birds away from the vessel during operations, thereby reducing their vulnerability to bycatch. The megaphone showed limited efficacy, with higher seabird abundance in treatment groups compared to controls. The scarybird device was largely ineffective in deterring gulls unless combined with discard management but showed potential in reducing interactions with northern gannets. Importantly, all mitigation measures did not negatively impact Landings Per Unit Effort (LPUE), which facilitated their acceptance among fishers. Our findings suggest that simple modifications in the fisher's behaviour, such as retaining fish discards and viscera onboard, could serve as a promising bycatch mitigation measure, potentially eliminating the need for additional less effective mitigation devices that fishers may be reluctant to adopt.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"268 ","pages":"Article 107767"},"PeriodicalIF":4.8,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170790","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}