Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-31DOI: 10.1016/j.marpol.2026.107064
Richmond Santani Basant , Dayne Buddo , Azad Mohammed , Hamish Asmath , Judith Gobin , La Daana K. Kanhai
{"title":"Ballast water management in Small Island Developing States (SIDS) of the Caribbean","authors":"Richmond Santani Basant , Dayne Buddo , Azad Mohammed , Hamish Asmath , Judith Gobin , La Daana K. Kanhai","doi":"10.1016/j.marpol.2026.107064","DOIUrl":"10.1016/j.marpol.2026.107064","url":null,"abstract":"<div><div>The Caribbean Large Marine Ecosystem is a highly biodiverse region in the Western Tropical Atlantic Ocean and provides important habitats for resident and migratory organisms. Caribbean Small Island Developing States (SIDS) are heavily dependent on shipping. Ballast water operations increase the risk of biological invasions and establishment of marine invasive alien species. This study assessed the status of Ballast Water Management in Caribbean SIDS. The specific objectives were to assess (i) the policy, legal and institutional governance framework for Ballast Water Management in Caribbean SIDS, and (ii) the status of ballast water research in the Caribbean. Many Caribbean SIDS have acceded to the International Ballast Water Management Convention, but the minority have enabled domestic legislation to implement Convention provisions. Caribbean SIDS have not enabled a robust policy and institutional framework but have adopted a piecemeal approach such as publishing technical notices for instructing local vessels. Challenges include lack of legislation, enforcement difficulties, shortage of legal drafters, political expediency, insufficient staffing/budgetary allocations and lack of technical capacity. Ballast water and marine invasive research in the Caribbean remains sparse and regionally fragmented, with gaps in sampling and analysis, port biological baselines, risk assessments and species potentially transported by ballast water. Caribbean SIDS must improve policy and governance frameworks to address marine bioinvasions and protect marine ecosystems. This must be complemented by scientific research, baseline monitoring and risk assessments to support evidence-based decision making to promote marine surveillance and early detection. These findings can inform national, regional and international policy discussions to strengthen implementation.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107064"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-29DOI: 10.1016/j.marpol.2026.107055
Bruno Andrade Teixeira , Iara Leite , Marcos André Braz Vaz
{"title":"The non-evolution of cooperation: The influence of economic interests in the exclusion of the bioprospecting agenda from the International Antarctic Regime","authors":"Bruno Andrade Teixeira , Iara Leite , Marcos André Braz Vaz","doi":"10.1016/j.marpol.2026.107055","DOIUrl":"10.1016/j.marpol.2026.107055","url":null,"abstract":"<div><div>This paper’s title paraphrases Robert Axelrod’s best seller “The Evolution of Cooperation”. Instead of concentrating on the development of international cooperation, we aim at understanding why cooperation does not evolve. We focus on the case of bioprospecting in Antarctica. We believe governmental decisions to keep that topic out of the Antarctic regulatory regime are influenced by firms that are well positioned as global players. We also believe that cooperation can be promoted by players that aim at improving their global relative economic position. We adopt the number of Antarctic patents as a proxy for global competitiveness, and the number of bioprospecting-related working, information, and background papers submitted by governments to consultative meetings (which we call 'position papers') as a proxy for cooperativeness. Though we found a correlation between both variables, it is not statistically significant if the US is excluded from the dataset. Still, our hypothesis on the relationship between economic competitiveness and non cooperation seems to hold in the case of Antarctic patent leaders that did not submit any position papers. Also, we found that other Antarctic patent leaders, mainly claiming countries, have adopted a low cooperative position. Higher cooperative positions were found among lower Antarctic innovators. We conclude by stressing that both cooperation and non cooperation, as political economy phenomena, have distributional consequences. Therefore, we ask whether laggard Antarctic innovators with low absorptive capacities will be able to improve their global relative economic position in case bioprospecting is finally included in the Antarctic regime.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107055"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-23DOI: 10.1016/j.marpol.2026.107059
T.R. McClanahan
{"title":"From expansion to overshoot: Policy risks in managing offshore fisheries expansion","authors":"T.R. McClanahan","doi":"10.1016/j.marpol.2026.107059","DOIUrl":"10.1016/j.marpol.2026.107059","url":null,"abstract":"<div><div>Fishing grounds frequently expand as overfishing of the nearshore promotes policies to increase access and economic incentives to target offshore resources. Subsidies for boats, gear, and fuel have been introduced to shift effort offshore and compensate for declining catches. Therefore, I tested the hypothesis that fishing area expansion would increase the use of offshore-oriented gears and benthic catch losses would be compensated by increased pelagics. To evaluate these increased access strategies, I analyzed 23 years of effort, gear use, and catch data from 13 nearshore fisheries in Kenya, nine of which expanded spatially while four remained stable. Initially, expansion correlated with higher fishing effort and increased use of beach seines and ring nets. Beach seine use declined in the non-expanding and rose in the expanding fisheries, despite being made illegal 6 years after catch measurements began. Thereafter, effort and catch rates declined rapidly below the initial and non-expanding fisheries values. Pelagic catches rose cyclically after the decline but for 15 years failed to fully offset benthic losses. Although nearshore fishable biomass and production recovered modestly as fisher numbers fell, capture consistently exceeded local ecological production. Policies promoting offshore fishing access should consider that pelagic yields are potentially low and episodic and may not reliably replace the higher and more stable benthic production. To achieve nearshore fish recovery, enhanced resource protection coincident with offshore access will be required.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107059"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Visitors’ perception, coastal scenery quality and tourism profitability on sandy beaches - Southeastern Brazil","authors":"Lorrana Lopes Diniz , Phillipe Mota Machado , Leonardo Lopes Costa , Nayra Bento Côgo , Julyana Figueiredo Madureira , Ilana Rosental Zalmon","doi":"10.1016/j.marpol.2026.107065","DOIUrl":"10.1016/j.marpol.2026.107065","url":null,"abstract":"<div><div>Unmanaged coastal tourism threatens beach ecosystems across many tropical coastlines. Using 540 questionnaires from beaches in southeastern Brazilian beaches, we evaluated the relationships among visitors’ perceptions, coastal scenery quality, and tourism profitability under scenarios of overcrowding and solid-waste pollution. The study covered nine beaches in the states of Rio de Janeiro (RJ) and Espírito Santo (ES), across three mesoregions with varying tourism potential (local, regional, and national/international). Visitors overestimated coastal scenery quality by 30 % compared to expert evaluations, especially on nationally famous beaches in Rio de Janeiro such as Praia Grande and João Fernandes. Overall, beachgoers showed more tolerance for overcrowding (51 % would still visit under the worst overcrowding scenario – 5 m² per person) than for pollution (70 % would avoid the beach with the worst solid waste scenario – 15 items per m²). Most were willing to change plans when faced with degraded settings. On locally attractive beaches, 74 % would consider changing to another regional destination, whereas on nationally attractive ones, 55 % would opt for a nearby site within the same municipality. Estimated municipal revenue losses from tourist displacement could reach US$ 52 million per summer season in Praia Grande-RJ, located in the Região dos Lagos mesoregion. These findings underscore the socio-ecological value of beaches and the need for integrated management. Although recreational preferences may conflict with conservation goals, tourism influenced by social media presents an opportunity to support coastal management and foster environmental awareness among visitors.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107065"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-23DOI: 10.1016/j.marpol.2026.107058
Keyuan Zou, Ying Tan
{"title":"Enhancing the effectiveness of digitalised maritime law enforcement","authors":"Keyuan Zou, Ying Tan","doi":"10.1016/j.marpol.2026.107058","DOIUrl":"10.1016/j.marpol.2026.107058","url":null,"abstract":"<div><div>In the digital age, the widespread use of digital technologies is reshaping all maritime fields, particularly maritime law enforcement, and while the impact is far-reaching, the overall effect has yet to be fully analysed and evaluated. Digital transformation is crucial in maritime law enforcement, not only significantly improving the efficiency and effectiveness of such enforcement but also providing strong support to address multiple challenges in complex maritime environments. This paper discusses the central role of digital technology and its application in maritime law enforcement and analyses the challenges and responses to digitalised law enforcement. It concludes that the future digitisation of maritime law enforcement must not only focus on improving technical performance and efficiency, but must also ensure fairness, transparency, security, and sustainability.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107058"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-30DOI: 10.1016/j.marpol.2026.107061
Uxio Labarta , Diana Zúñiga
{"title":"Mussel culture carrying capacity: Learning from the past to face the future","authors":"Uxio Labarta , Diana Zúñiga","doi":"10.1016/j.marpol.2026.107061","DOIUrl":"10.1016/j.marpol.2026.107061","url":null,"abstract":"<div><div>At the northern boundary of the NE Atlantic upwelling system, seasonal wind patterns that facilitate the influx of nutrient-rich waters, combined with the presence of protected embayments known as the Galician Rías, have established this region as the third largest producer of mussels in the planet. Since the early 1970s, the need to ensure sustainable exploitation of this natural resource has prompted scientific and administrative efforts to identify environmental conditions that optimize mussel farming and to clarify the impacts of mussel cultivation on marine food web dynamics. This article synthesizes scientific advances from recent decades, including research on turnover times in the Galician Rías and diverse methodologies for defining ecosystem carrying capacity. Recent in situ analyses have revealed intense turbulent flows in and around mussel cultivation units, thereby challenging earlier carrying capacity models that assumed linear water flow through rafts and cultivation polygons. This finding highlights the importance of incorporating seasonal fluctuations in food availability, both within and beyond the turbulent zone, when evaluating the future sustainability of mussel aquaculture. Additionally, the strong dependence of regional productivity on wind regime seasonality requires that any modeling of mussel farming in the Galician Rías should consider potential hydrographic and hydrodynamic changes within the embayments, whether due to interannual ocean-atmosphere variability or global climate change. Such an integrated approach is essential for developing an action plan that ensures the long-term sustainability of mussel farming in the Galician Rías.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107061"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-31DOI: 10.1016/j.marpol.2026.107066
Eleanor Dayan, Aviad Rubin
{"title":"Complexities of governance and sovereignty in maritime security","authors":"Eleanor Dayan, Aviad Rubin","doi":"10.1016/j.marpol.2026.107066","DOIUrl":"10.1016/j.marpol.2026.107066","url":null,"abstract":"<div><div>Maritime governance should be tailored to effectively confront the complexity of maritime security challenges, namely their cross-boundary nature, the interlink of maritime threats to one another, as well as their inter-weaving with terrestrial challenges. The complexity of the issue often reveals an inherent tension between the trans-sovereign nature of effective governance at sea and the tendency of involved states to insist on their sovereignty and exclusive jurisprudence. In this article we inquire whether state sovereignty and the resulting power dynamics among states is at odds with the ability to achieve an effective security regime at sea. To tackle this question, which bears both theoretical and policy importance, this article investigates circumstances in which dynamics of governance and sovereignty create by themselves a challenge to effective security at sea. The article ventures into in-depth analysis of two maritime security case studies, Singapore in the Malacca Straits and Frontex in the Mediterranean. The analyses reveal the tensions and contradictions that exist between single states’ sovereignty and jurisprudence, and the goal of supra-state maritime security, and identify ways to overcome them. Conclusively, maritime security requires cross-sovereign thinking and regional approach to governance that includes investments in the development of good governance along the coasts, shared jurisdiction at sea, and a unitary command structure and authority over areas of operations.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107066"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146174409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-22DOI: 10.1016/j.marpol.2026.107050
Michael Weir , Callan Yanoff , Di Jin , Tracey Dalton
{"title":"Understanding public perceptions associated with aquaculture development and farm design in Southern New England","authors":"Michael Weir , Callan Yanoff , Di Jin , Tracey Dalton","doi":"10.1016/j.marpol.2026.107050","DOIUrl":"10.1016/j.marpol.2026.107050","url":null,"abstract":"<div><div>We examine public support for shellfish aquaculture development and preferences for aquaculture farm design and operation in Southern New England, using statistical modeling and quantitative and qualitative data collected through stakeholder focus groups and questionnaire surveys of coastal residents. Results of the study indicate that a majority of respondents support shellfish aquaculture farms in all coastal waters and even in waterss they use the most. On farm design and operation, floating gear is less preferred than bottom culture, and aquaculture sites in undeveloped areas are preferred to areas with homes in proximity. We also find that farms allowing human powered vessel activity are preferred to those that do not allow boating in and around aquaculture farms, as well as a broad support of aquaculture by respondents who use the coast for recreation, which suggests that multiuse of the coastal waters is gaining public acceptance. Both growers and coastal managers can use these findings to streamline the permit application and review process which will facilitate the sustainable growth of shellfish aquaculture.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107050"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-24DOI: 10.1016/j.marpol.2026.107060
Rocío López de la Lama , Nathan J. Bennett , Philippe Le Billon
{"title":"The critical role of allied organizations in supporting ocean defenders","authors":"Rocío López de la Lama , Nathan J. Bennett , Philippe Le Billon","doi":"10.1016/j.marpol.2026.107060","DOIUrl":"10.1016/j.marpol.2026.107060","url":null,"abstract":"<div><div>The rapidly expanding ocean economy is a significant driver of global growth but often produces substantial negative impacts on coastal communities, including environmental degradation, displacement, and human rights violations. These harms are exacerbated by the longstanding marginalization and exclusion of these communities from marine and coastal governance. In response, ocean defenders are organizing to resist these injustices, but can experience both non-lethal and lethal attacks for doing so. This study examines the role of allied organizations – including grassroots networks, funders, legal non-profits, NGOs and INGOs, researchers, and journalists – in supporting and safeguarding defenders. Drawing on semi-structured interviews with both ocean defenders and representatives of allied organizations, our findings reveal that allies contribute by strengthening local capacities and skills, advocating and facilitating participation in decision-making, increasing visibility of defenders, conducting research and documentation, creating and supporting solidarity networks, providing financial support, enhancing security and safety protocols, and offering legal support. Yet current efforts remain largely short-term, isolated, and insufficient to meet defenders’ diverse and urgent needs. Allied organizations also face several challenges ranging from funding constraints to personal security risks. Addressing these challenges requires more flexibility in financing, stronger protection measures, and deeper collaboration between defenders and their allies. Above all, any strategy to support ocean defenders must center their voices and needs, ensuring they are at the forefront of current and future discussions and decisions related to the development of the ocean economy.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107060"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2026-05-01Epub Date: 2026-01-22DOI: 10.1016/j.marpol.2026.107056
Anh Vo
{"title":"The use of force during maritime law enforcement: A study of international legal standards and China’s recent practice in the Second Thomas Shoal","authors":"Anh Vo","doi":"10.1016/j.marpol.2026.107056","DOIUrl":"10.1016/j.marpol.2026.107056","url":null,"abstract":"<div><div>Maritime law enforcement refers to a range of constabulary measures to maintain legal order and protect littoral States’ interests in areas within their national jurisdiction, as well as in certain circumstances on the high seas. The use of force is one of the measures deployed by coastal States to exercise law enforcement powers, though it is subject to several constraints to safeguard its lawfulness. The coast guard agency is a common authority entrusted by States to carry out maritime law enforcement duty during times of peace. However, beyond their conventional functions, recent State practice shows that the coast guards have gradually become the primary instrument by which coastal States assert sovereignty and sovereign rights in relation to disputed maritime areas. Particularly, at the Second Thomas Shoal, the China Coast Guard frequently resorts to the use of force, such as ramming, shooting water cannons, or using lasers, as part of their law enforcement measures against the Philippines Coast Guard and resupply vessels, do not adhere to the legal standards set out in this paper. In light of the increasing frequency of forcible measures in this area, this paper emphasizes that the use of force as part of maritime law enforcement measures must conform to international legal standards, including due regard and due diligence obligations, considerations of humanity, and respect the sovereign immunity of warships, military aircraft, and government vessels on non-commercial services. Force must only be used as the last resort and must comply with principles of necessity, proportionality, and reasonableness.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"187 ","pages":"Article 107056"},"PeriodicalIF":3.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}