Ocean & Coastal Management最新文献

{"title":"Exploratory analysis of marine reserve site selection by Monte Carlo mixed integer programming","authors":"Donna Ross Saycon ,&nbsp;Shui-Kai Chang ,&nbsp;Tung-Yung Fan ,&nbsp;Chen-Lu Lee ,&nbsp;Yang-Chi Chang ,&nbsp;Pierre-Alexandre Château","doi":"10.1016/j.ocecoaman.2025.107712","DOIUrl":"10.1016/j.ocecoaman.2025.107712","url":null,"abstract":"<div><div>Marine reserve site selection is a complex process that requires balancing ecological conservation, socio-economic considerations, and management feasibility. Traditional multi-objective optimization methods often rely on the weighted sum approach, which introduces subjectivity and uncertainty in weight estimation. To enhance transparency and robustness, this study introduces an exploratory framework that integrates Mixed Integer Programming (MIP), Monte Carlo (MC) experiments, and Decision Tree (DT) analysis. Using Xiao Liuqiu Island in Taiwan as a case study, we ran an MIP site selection model 10,000 times to systematically explore different weighting scenarios for 21 ecological, socio-economic, and management features. The MC results revealed that 90 % of simulations consistently identified a single high-priority conservation zone, which exhibits high ecological, low socio-economic, and high management values. Two alternative zones emerged under specific weight conditions. The DT analysis pinpointed the threshold conditions that drive site selection shifts towards these zones, highlighting the most influential features shaping the decision-making process. By reducing reliance on predefined weights, this approach ensures globally optimal marine reserve configurations while providing decision-makers with clearer insights. The findings contribute to marine spatial planning, adaptive conservation strategies, and stakeholder-driven decision-making, fostering more effective and informed marine protection efforts.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107712"},"PeriodicalIF":4.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898672","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":"Actors, themes, approaches, and imbalances in Blue Economy cooperation: A systematic review and future prospects","authors":"Shuqin Li ,&nbsp;Lin Chen ,&nbsp;Yungang Liu","doi":"10.1016/j.ocecoaman.2025.107698","DOIUrl":"10.1016/j.ocecoaman.2025.107698","url":null,"abstract":"<div><div>This study employs a systematic review approach to examine the actors, themes, approaches, and imbalances in Blue Economy cooperation. By systematically tracing the evolution of the Blue Economy concept, this study identifies key actors involved in Blue Economy cooperation, including national government departments, regional economic organizations, industry institutions, research institutions, and local communities. It categorizes major cooperation themes, such as marine ecological protection, fisheries and aquaculture, offshore renewable energy, marine spatial planning, data sharing, and maritime security governance. Additionally, it summarizes cooperation approaches, including policy coordination, market mechanisms, technology sharing, and multi-level dialogue. The study further highlights three critical imbalances in Blue Economy cooperation: uneven distribution of power and resources, conflicts between short-term economic objectives and environmental protection, and the fragmentation of multilateral cooperation alongside weak local implementation capacity. Based on these findings, five policy recommendations are proposed: strengthening legal frameworks and accountability mechanisms, optimizing economic incentives, integrating multi-level governance systems, promoting technological cooperation and business innovation, and enhancing multi-stakeholder dialogue to achieve an equitable and sustainable Blue Economy. This study provides a systematic reference for advancing both theoretical exploration and practical implementation of Blue Economy cooperation.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107698"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883226","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":"DragLess - a holistic approach to gear development: reducing roundfish bycatch and drag in the trawl fishery of Norway lobster (Nephrops norvegicus) off Denmark","authors":"Ludvig A. Krag ,&nbsp;Valentina Melli ,&nbsp;Finbarr G. O'Neill ,&nbsp;Kurt Hansen ,&nbsp;Junita D. Karlsen","doi":"10.1016/j.ocecoaman.2025.107722","DOIUrl":"10.1016/j.ocecoaman.2025.107722","url":null,"abstract":"<div><div>In demersal trawl fisheries, advancements in gear technology in the posterior part of the trawl have enhanced size and species selectivity. The integration of these developments into the technical legislation remains, however, limited, with minimal uptake within the industry. This is despite that demersal fisheries are challenged by simultaneously evolving sustainability issues and need not only to reduce unintended bycatch but also preserve habitat and improve fuel efficiency. Consequently, there is a pressing need for fishing gear innovations that offer more holistic solutions. This study, conducted off the coast of Denmark addresses a suite of these challenges in the demersal Norway lobster (<em>Nephrops norvegicus</em>)-directed trawl fishery by simultaneously aiming to minimize catches of unwanted bycatch, reduce drag during gear towing without requiring changes to the existing technical regulations. Moreover, the study endeavors to devise an easily reversible design alteration that allows fishers to retain fish bycatch of commercial sizes when quota is available. In a catch comparison set-up, we found that the bycatch of roundfish was significantly reduced without compromising the yield of <em>Norway lobster</em> when the top panel was constructed of very large meshes through most of the body of a <em>Norway lobster</em>-trawl. Concurrently, the drag diminished by 10 % during gear towing. This research underscores the potential for simple, yet effective, gear modifications to mitigate environmental impacts and enhance sustainability in fisheries operations using trawl.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107722"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887485","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":"Priority protected areas for mangrove conservation in coastal Guangdong, China: Addressing climate and land cover changes","authors":"Ruixue Liu ,&nbsp;Qixuan Wang ,&nbsp;Huilin Kong ,&nbsp;Yun Li","doi":"10.1016/j.ocecoaman.2025.107707","DOIUrl":"10.1016/j.ocecoaman.2025.107707","url":null,"abstract":"<div><div>Mangroves are critical for mitigating climate change, yet face challenges from climate change and land cover alterations. Identifying priority protected areas (PPAs) for mangroves and predicting their responses to climate and land cover changes is critical for mangroves to cope with future challenges. Recent studies have attempted to identify PPAs for mangroves, but most rely on current and/or historical data, and focus on examining individual drivers (climate or land cover change), overlooking a forward-looking assessment of their combined effects. Building on a novel framework integrating MaxEnt and InVEST, this study identifies mangrove PPAs influenced by climate and land cover changes and explores their spatial-temporal variations from 2020 to 2050 through land cover dynamic prediction under three shared socioeconomic pathway (SSP) scenarios (SSP126: low-emission scenario; SSP245: mid-emission scenario; SSP585: high-emission scenario). An empirical analysis is conducted in Guangdong, China. From 2020 to 2050, mangrove PPAs exhibit distinct trends under diverse scenarios, influenced by climate and land cover changes. Under the SSP126 scenario, PPAs are expected to expand and become less fragmented; while they will contract and become more fragmented under the SSP245 scenario and especially the SSP585 scenarios. Moreover, the consistency between existing marine protected areas (MPAs) and mangrove PPAs is rather low. The effectiveness of existing MPAs demonstrates a slight improvement under the SSP126 scenario, but weaken their effectiveness under the SSP245 and SSP585 scenarios. Proposals to conserve mangroves by enhancing the existing MPA system are presented to address challenges brought by climate and land cover changes.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107707"},"PeriodicalIF":4.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878860","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":"Rental pricing and empty container repositioning strategy for a one-way container rental service","authors":"Junseok Park ,&nbsp;Ilkyeong Moon","doi":"10.1016/j.ocecoaman.2025.107684","DOIUrl":"10.1016/j.ocecoaman.2025.107684","url":null,"abstract":"<div><div>This paper investigates rental pricing and empty container repositioning (ECR) strategies for a one-way container rental service (OCRS). The proposed OCRS aims to address intercontinental container imbalances and alleviate financial burdens on shipping companies by optimizing rental pricing and ECR operations. Mathematical optimization models are developed to determine optimal prices and container utilization, complemented by two practical inventory management policies, namely periodic review and continuous review policies, to enhance real-world applicability. To further validate the robustness of the proposed service in stochastic environments, two highly practical rule-based heuristics are additionally proposed. Computational experiments evaluate the service’s profitability under various scenarios, revealing that the heuristic based on the continuous review policy demonstrates robust performance. The results underscore the potential of the OCRS to promote resource efficiency and to reduce logistical waste, paving the way for resilient and eco-friendly maritime logistics networks.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107684"},"PeriodicalIF":4.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883225","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":"Blue carbon ecosystems in Vietnam: a review","authors":"Bijeesh Kozhikkodan Veettil ,&nbsp;Vikram Puri","doi":"10.1016/j.ocecoaman.2025.107711","DOIUrl":"10.1016/j.ocecoaman.2025.107711","url":null,"abstract":"<div><div>Coastal and marine vegetation, known as blue carbon ecosystems, plays a vital role in the lives of coastal communities throughout Southeast Asia, particularly in Vietnam. Mangrove forests, seagrass meadows, and salt marshes are distributed throughout the coastline of Vietnam with varying species diversity and spatial distribution patterns. This study performed a scientometrics analysis of blue carbon ecosystems in Vietnam, while also examining restoration initiatives and prospects for the country's blue carbon economy. Moreover, we also investigated the trends in blue carbon research in Vietnam, the challenges and issues related to blue carbon, and possible solutions to overcome these challenges. This study also considered the applications of remote sensing in blue carbon research in Vietnam.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107711"},"PeriodicalIF":4.8,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877470","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":"Understanding the socio-economic and environmental effects of Port Development on urban and marine environments: A case of Mombasa Port expansion (2006–2021) on urban and marine environments in Kenya","authors":"Dinah A.E. Ogara ,&nbsp;Mark M. Akrofi ,&nbsp;Viveanne Muthoni","doi":"10.1016/j.ocecoaman.2025.107581","DOIUrl":"10.1016/j.ocecoaman.2025.107581","url":null,"abstract":"<div><div>As Africa experiences unprecedented growth rates in seaborne trade, the pressure on existing port infrastructure intensifies, necessitating the expansion and development of key maritime facilities. The Mombasa Port in Kenya, a critical hub for maritime trade on the continent, exemplifies this phenomenon through its ongoing expansion activities. This study examines the port expansion's social, economic, and environmental effects on the city of Mombasa, its residents, and their marine environments, offering a comprehensive analysis of the port-city-sea nexus within the African context. Employing a mixed-method research design, this study integrates qualitative and quantitative data collection techniques by combining 520 household surveys, Focus Group Discussions (FGDs) with residents and local organizations, and Key Informant Interviews (KII). Quantitative analysis utilized descriptive statistics-frequency distributions, cross-tabulations, ANOVA, Pearson's chi-squared tests and regression analysis. Concurrently, qualitative data were thematically coded ensuring a robust triangulation of findings. The analysis focused on the perceived and observable changes attributed to the port expansion, residents' satisfaction with their Quality of Life (QoL), and environmental conditions, as well as examining economic and livelihood status. Findings indicated that 93% of the respondents acknowledged that they observed substantial changes in their vicinity due to port development, with quality-of-life satisfaction levels varying according to their proximity to recent expansion activities. Notably, those residing closest to the port expansion sites reported higher levels of dissatisfaction due to livelihood disruption, displacement, and environmental destruction. This research fills the existing literary gap around the intricate relationship between port development and urban, terrestrial, and marine environments in Africa. Moreover, it lays a foundation for further studies and provides baseline data that may inform sustainable urban, land, and sea planning in African port cities.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107581"},"PeriodicalIF":4.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864722","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":"Towards green marine propulsion: comparative lifecycle evaluation of LPG and battery-electric systems for small vessels","authors":"Jeong Kuk Kim ,&nbsp;Jae-Hyuk Choi ,&nbsp;Won-Ju Lee ,&nbsp;Siljung Yeo","doi":"10.1016/j.ocecoaman.2025.107702","DOIUrl":"10.1016/j.ocecoaman.2025.107702","url":null,"abstract":"<div><div>This study assesses three eco-friendly propulsion systems for small-to-medium fishing vessels: liquefied petroleum gas (LPG) generator engine motor propulsion system (LPG G/E MPS), LPG main engine direct propulsion system (LPG M/E DPS), and battery electric motor propulsion system (battery electric MPS). Using life cycle assessment (LCA), life cycle cost assessment (LCCA), and a fuzzy technique, the environmental, economic, and technical impacts of each system are evaluated within the context of the power production structure of South Korea. The results show that LPG M/E DPS are a viable alternative to traditional fuels, with lower greenhouse gas (GHG) emissions than battery systems due to the fossil fuel-heavy electricity grid in South Korea. Additionally, transitioning the hull material from glass fiber-reinforced plastic (GFRP) to aluminum reduces both emissions and costs over the long term. This study not only highlights the necessity for regional considerations in adopting green maritime technologies but also demonstrates the potential for significant environmental and economic benefits through informed propulsion system selection.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107702"},"PeriodicalIF":4.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869082","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":"Tourism and recreation in blue carbon ecosystems: Exploring synergies, trade-offs and pathways to sustainability","authors":"Ahalya Suresh ,&nbsp;Melissa Wartman ,&nbsp;A. Rifaee Rasheed ,&nbsp;Peter I. Macreadie","doi":"10.1016/j.ocecoaman.2025.107697","DOIUrl":"10.1016/j.ocecoaman.2025.107697","url":null,"abstract":"<div><div>Blue carbon ecosystems (BCEs) represent a significant natural solution for climate change mitigation through their capacity to sequester large amounts of organic carbon. These coastal habitats also provide an array of co-benefits, such as biodiversity enrichment, livelihood support, and opportunities for tourism and recreational activities. However, these ecosystems are increasingly threatened by human activities, including unsustainable tourism practices. To get a deeper understanding into the current trends and uncover key research gaps related to tourism synergies and trade-offs with BCEs, we conducted a global systematic literature review of published research The review highlights the evolution of tourism impacts on BCEs. Our findings reveal a significant increase in publications related to tourism impacts and BCEs from 2016, peaking in 2021. Ecology-based studies dominate the research space, with nearly half of the studies concentrating solely on ecotourism, underscoring its prominence within tourism research. Mangroves emerge as the most frequently reported ecosystem type, with most studies conducted in Indonesia and China. When tourism synergies and trade-offs were mapped, it showed that ecotourism is strongly associated with synergies including raising conservation awareness and promoting pro-environmental behaviours. Economically, ecotourism contributes to income generation and livelihood development. However, ecotourism activities have also reported trade-offs linked to ecosystem damage, loss, and environmental pollution. These findings emphasize the dual role of tourism as both a potential driver of ecosystem conservation and a contributor to environmental degradation. Our findings emphasize the need for sustainable tourism initiatives that align with conservation goals and socioeconomic and cultural interests. Holistic and integrated approaches to ecosystem and tourism management are also needed to achieve more sustainable outcomes.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"266 ","pages":"Article 107697"},"PeriodicalIF":4.8,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863409","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":"The politics of an Alien Monster: Retrospective analysis of the use of evidence at the science-policy interface","authors":"John Humphreys","doi":"10.1016/j.ocecoaman.2025.107693","DOIUrl":"10.1016/j.ocecoaman.2025.107693","url":null,"abstract":"<div><div>Indigenous to east Asian coasts the Manila clam <em>Ruditapes philippinarum</em> arrived in UK estuaries in the 1980s during a key period in the emergence of conservation policy and invasion science. In contrast to many non-native arrivals the introductions were intentional, and government sponsored. The British government was determined to introduce the species for aquaculture and the economic benefits that would result. To this end it circumvented its own recently introduced legislation prohibiting the “release or escape to the wild” of non-native species. This was achieved by re-interpreting the prohibition to apply only in circumstances where a species, once escaped, could successfully naturalise. The government thereby shifted attention from the unequivocal legal question of “release or escape” to scientific predictions on the species’ reproductive capability in British conditions. This sparked contention and polarisation between two groups of scientists from distinct sub-disciplines (fisheries and conservation). In the national press the species was described as an “alien monster”. Today, 40+ years after its introduction, we can reflect on the selection, interpretation and use of the evidence available at the time, and the relationship between what contrasting scientific opinions predicted, and what subsequently happened. Paradoxically, the species is now both an ecological and economic asset in southern England.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"266 ","pages":"Article 107693"},"PeriodicalIF":4.8,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860305","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}