{"title":"Moving towards sustainable whale shark-human interactions: A case study in Bahía de La Paz, Baja California Sur, Mexico","authors":"Alberto García-Baciero , Karen Mariana Acevedo-Escobedo , Maritza Cruz-Castillo , Dení Ramírez-Macías","doi":"10.1016/j.marpol.2025.106606","DOIUrl":"10.1016/j.marpol.2025.106606","url":null,"abstract":"<div><div>Whale shark tourism has experienced a significant increase in demand in recent decades, which may stress these animals or alter their behavior. Therefore, assessing the tourism carrying capacity (TCC) for whale-shark interactions is crucial for sustainable management. Despite Bahía de La Paz being established as a whale shark refuge in 2018 and improvements in management strategies for human-whale shark interactions due to increased oversight of tourism providers, 50–60 % of whale sharks are still injured yearly. This research assesses the TCC for swim-with-whale shark activities at the aggregation site in Bahía de La Paz to incorporate it into a decision-support system for tourism management. We developed the numerical formulation of the TCC following the precautionary principle based on the management factors necessary to estimate a carrying capacity that aligns with current whale shark regulations in Mexico, derived from monitoring data collected between 2005 and 2022. We compared the TCC assessments conducted for two scenarios: a low-regulated period (2015–2016 season) and a high-regulated period (2018–2022 season). The effective carrying capacity (ECC) post-regulation allows more tourism boats per turn compared to the pre-regulation period, primarily due to increased observed whale sharks. In addition, we present a dynamic TCC assessment that adjusts the number of tourist boats based on the observed whale shark population in the area. We hope the government implements this model into the management plan of the species to reduce pressure on whale sharks and lessen the impact on the species.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106606"},"PeriodicalIF":3.5,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154415","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 : 2025-02-03DOI: 10.1016/j.marpol.2025.106618
José Bakit , Enzo Bonilla , Sebastian Villasante , Niris Cortés , Begoña Peceño
{"title":"Prevent or treat occupational noise exposure in artisanal fishers? Decision-making based on public expenditure","authors":"José Bakit , Enzo Bonilla , Sebastian Villasante , Niris Cortés , Begoña Peceño","doi":"10.1016/j.marpol.2025.106618","DOIUrl":"10.1016/j.marpol.2025.106618","url":null,"abstract":"<div><div>Small-scale fisheries account for 40 % of the world's capture fisheries and employ approximately 90 % of the people in the fishing sector. The effects of noise exposure on occupational health have been studied extensively. Studies have been conducted in fisheries in various parts of the world showing hazardous noise levels in different fishing vessels; however, these studies were conducted in industrial fisheries, leaving artisanal fisheries with knowledge gaps. This work focused on artisanal fishers is the first to (a) determine their perception of noise exposure, (b) quantitatively assess their exposure to noise in small vessels, and (c) determine the economic benefits of implementing preventive measures versus the treatment scenario of noise-induced hearing loss in this target group. The results indicate that most of them work at risk of noise exposure and are unaware of it. All tasks and scenarios analysed exceed the maximum permissible noise exposure limits, mainly caused by boat engines. The economic analysis showed that the benefits (savings) of the preventive measures outweighed the expenses (costs) of medical treatment for potential artisanal fishers with hearing loss. The investment spent on preventive measures recovered after 8.65 years. Other benefits correspond to the decongestion of the public healthcare network and reduction in public expenditure. Finally, our study provides quantitative information that fills gaps in the information available to decision-makers when defining public policies.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106618"},"PeriodicalIF":3.5,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154416","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":"Secrets of the sea: Unraveling the interactions, between artisanal fishing and southern right whales, in Southern Brazil","authors":"Patrícia Falcão Bueno , Rodrigo Machado , Sarah Longhi Kunzler , Renato Azevedo Matias Silvano , Karina Rejane Groch , Alexandre Schiavetti","doi":"10.1016/j.marpol.2025.106603","DOIUrl":"10.1016/j.marpol.2025.106603","url":null,"abstract":"<div><div>For marine mammals, gillnets are primarily responsible for bycatches, this is a global problem that threats to the lives of cetaceans. The marine region of Southern Brazil is notable for the presence of the southern right whale, <em>Eubalaena australis</em>, which annually migrates from feeding areas to the waters of Southern Brazil to reproduce. Consequently, given the importance of this region for the species, the Right Whale Environmental Protection Area (RWEPA) was established. National studies on the interactions between fishers and southern right whale have revealed a gap in information. To gain a deeper understanding of these interactions, this study was conducted in five cities that have the highest concentration of whales, both inside and outside the RWEPA, and where fishing activities are prevalent. Them were divided into two groups based on their fishing areas, those who fish inside the RWEPA, were named “FI_inside_RWEPA”, the other group who fish outside the RWEPA, were named “FI_Outside_RWEPA”. Data were collected through individual interviews with 69 fishers. They report that the presence of whales leads to losses when they damage fishing nets, during collisions between whales and boats, when fisher cease fishing a shoal due to a whale's presence, or when they must cut the net to prevent whales getting trapped. To avoid accidents, some approach the whales so that the sound of the boat's engine may encourage them to move away. They also observe that whales often carry fragments of nets, primarily around their heads. To avoid bycatch, it is crucial to educate and collaboratively develop strategies to monitor when and where these incidents occur.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106603"},"PeriodicalIF":3.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154371","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 : 2025-01-30DOI: 10.1016/j.marpol.2025.106594
Ana Harumi Hayashida-Carrillo
{"title":"Do participatory governance models in fisheries lead to ecosystem-based fisheries management?","authors":"Ana Harumi Hayashida-Carrillo","doi":"10.1016/j.marpol.2025.106594","DOIUrl":"10.1016/j.marpol.2025.106594","url":null,"abstract":"<div><div>International fisheries agreements, including the Code of Conduct for Responsible Fisheries (1995), have prompted co-management and Ecosystem-Based Fisheries Management (EBFM) as pathways to achieving sustainable fishing practices. These agreements suggest that participatory governance models are more likely to implement comprehensive management strategies that address the multiple interactions occurring within a fishery's social-ecological system. In Mexico, fishing committees have been established to tackle the most pressing issues in fisheries through a participatory model. However, their effectiveness in adopting EBFM remains uncertain. This analysis assesses the implementation of an EBFM approach in two distinct regions with different fisheries but highly participatory fishing committees: the Yucatan Grouper Fishery Advisory Committee and the Technical Committee for the Study of Small Pelagic Fishery. The concepts of 'good governance' and the implementation of 'ecosystem-based fishery management' were examined through semi-structured interviews with committee members and a review of internal documents. While both committees received moderate to high ratings of good governance due to their strong inclusion and representativeness, their influence on fisheries management is limited, and the implementation of an EBFM approach is partial. This limitation is attributed to institutional design flaws, weak legal frameworks, a lack of administrative capabilities, and a lack of clearly defined EBFM-oriented objectives, indicators, and goals.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106594"},"PeriodicalIF":3.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154370","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 : 2025-01-30DOI: 10.1016/j.marpol.2025.106616
Hsiu-Fen Lin
{"title":"Examining the determinants of blockchain technology-enabled maritime supply chain system adoption intention: Does market turbulence play a moderating role?","authors":"Hsiu-Fen Lin","doi":"10.1016/j.marpol.2025.106616","DOIUrl":"10.1016/j.marpol.2025.106616","url":null,"abstract":"<div><div>Blockchain technology-enabled maritime supply chain system (BTMSCS) holds the potential to address pain points such as inefficiency, low transparency, and complex stakeholder networks in the maritime industry. Blockchain technology, including smart contract and consensus mechanism, could leverage its potential to provide virtualized services and influence existing interorganizational relationships. However, it remains unclear which factors affect BTMSCS adoption intention from the perspective of virtualization mechanism characteristics and interorganizational relationships. Drawing on theories of process virtualization, interorganizational trust, and institutional pressure, this study proposes a research model to investigate the determinants of BTMSCS adoption intention and tests it with 128 Taiwanese maritime-related firms. The results indicate that two virtualization mechanism characteristics (perceived representation and perceived monitoring capability), three interorganizational trust components (competence trust, goodwill trust, and contractual trust), and coercive institutional pressure have significant effects on BTMSCS adoption intention. In addition, market turbulence moderates the positive relationship between competence trust and BTMSCS adoption intention. Further, this study extends the research on BTMSCS and helps both researchers and practitioners better understand how to successfully adopt BTMSCS.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106616"},"PeriodicalIF":3.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154372","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 : 2025-01-30DOI: 10.1016/j.marpol.2025.106605
Maria João Correia , Paula Chainho , Thomas Goulding , Frederico Carvalho , Sara Cabral , Filipa Gomes Ferreira , Lia Vasconcelos
{"title":"Participatory action research supporting adaptive governance of Manila clam fisheries","authors":"Maria João Correia , Paula Chainho , Thomas Goulding , Frederico Carvalho , Sara Cabral , Filipa Gomes Ferreira , Lia Vasconcelos","doi":"10.1016/j.marpol.2025.106605","DOIUrl":"10.1016/j.marpol.2025.106605","url":null,"abstract":"<div><div>This paper reports the outcomes of the engagement between researchers, harvesters and other relevant stakeholders using participatory approaches for the purpose of the sustainable management of Manila clam fisheries in Portugal. Collaborative meetings were held between 2018 and 2023 in several coastal systems, framed by participatory action research principles. The goal was to identify problems, collect and analyse biologic and social information, and to discuss and co-construct potential solutions for the management of Manila clam fisheries, addressing the social, economic, biological and ecological dimensions. Throughout the process, a deeper understanding of the challenges facing Manila clam management was acquired, which demonstrated that success varies from system to system and “one size fits all” approach is not viable. Stakeholder meetings resulted in a functional network linking local and national actors. This collaboration influenced national and local regulatory measures, though formal mechanisms for sustaining the network were not achieved. The establishment of local organisations enabled consensus at the local level that shaped governance outcomes; regions with organized associations (Ria de Aveiro and Óbidos lagoon), achieved more effective management solutions compared to less cohesive communities (Tagus and Sado estuary). Participant perception assessments demonstrated that although they have an overall positive attitude towards the collaborative process, they are not certain about its potential to improve management. The Manila clam illegal fishing is perceived as a critical issue that undermines management solutions, that needs dedicated efforts and higher political support. This study highlights the importance of trust, social cohesion, and government support in building effective resource management systems.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106605"},"PeriodicalIF":3.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Weaving science and traditional knowledge: Toward sustainable solutions for ocean management","authors":"Mariana Caldeira , Alumita Talei Sekinairai , Marjo Vierros","doi":"10.1016/j.marpol.2025.106591","DOIUrl":"10.1016/j.marpol.2025.106591","url":null,"abstract":"<div><div>The UN Ocean Decade has demonstrated its potential as a transformative platform for integrating traditional knowledge into ocean science and management. This paper highlights practical examples of how the Ocean Decade's efforts could be enhanced from local to global levels. Although the recognition of traditional knowledge within the Decade marks a significant step forward, there are still ways to further improve their engagement and participation. Many actions endorsed by the Ocean Decade acknowledge the importance of including traditional knowledge holders, yet only a few incorporate essential elements for effective knowledge co-production, such as co-design and co-management. Emphasizing knowledge co-production is crucial for developing innovative solutions to complex ocean management challenges. The Ocean Decade offers a valuable opportunity to address these obstacles by fostering a more participatory framework that actively engages diverse knowledge systems and stakeholders, promoting a way for more effective and sustainable ocean management solutions both locally and globally, and providing lessons for the implementation of policies and treaties such as the BBNJ Agreement.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106591"},"PeriodicalIF":3.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143155014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2025-01-28DOI: 10.1016/j.marpol.2025.106590
Christy Juteau , Harley Chappell Xwopokton , Dr. Sarah Marie Wiebe , Robert Lapper
{"title":"The beauty underneath: A critical coastal governance approach to revitalize indigenous shellfish harvest","authors":"Christy Juteau , Harley Chappell Xwopokton , Dr. Sarah Marie Wiebe , Robert Lapper","doi":"10.1016/j.marpol.2025.106590","DOIUrl":"10.1016/j.marpol.2025.106590","url":null,"abstract":"<div><div>Indigenous communities have feasted from their tidelands since time immemorial. Yet today, many are disconnected due to land development, pollution, overharvest, and colonial law. Coastal First Nations live within the reality of their inherent laws and ways of being, held in tension with the restrictions and confusion of Canadian laws, funding models and bureaucracies. There is a need to bring enriched understanding and clarity to coastal ecosystems governance to address the overlapping crises of biodiversity loss, climate change, and food insecurity. Indigenous-led governance could provide a way forward. Featured through the example of shellfish management in Boundary Bay, Canada, this participatory action research study applies a critical coastal governance lens and systems thinking approach to evaluate existing colonial governance frameworks and complex interjurisdictional, intertidal relationships. By amplifying Indigenous voices and knowledge from a specific coastline through community filmmaking and story mapping, current gaps and dysfunction are addressed. Our analysis reveals that to operationalize this approach to coastal governance, Indigenous communities must be acknowledged and supported as leaders with the capacity and authority to carry out governance in their territory, influencing land and water management on a watershed scale. While legal resistance tools are effective in some cases to address issues of Aboriginal rights and title, collaborative approaches can be more effective. We elaborate short, medium and long-term recommendations to achieve a revitalized shellfish harvest and healthy bay ecosystem by centering Indigenous-led coastal governance.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106590"},"PeriodicalIF":3.5,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marine PolicyPub Date : 2025-01-28DOI: 10.1016/j.marpol.2025.106599
Jose Alberto de Santiago , Sebastián Villasante , Ana Tubío , Manel Antelo , Pablo Pita , Jose María Da Rocha
{"title":"Productivity changes and management systems in small-scale fisheries","authors":"Jose Alberto de Santiago , Sebastián Villasante , Ana Tubío , Manel Antelo , Pablo Pita , Jose María Da Rocha","doi":"10.1016/j.marpol.2025.106599","DOIUrl":"10.1016/j.marpol.2025.106599","url":null,"abstract":"<div><div>While productivity is an important measure of economic performance by commercial fisheries, the productivity of small-scale fisheries has largely been unexplored. To address this research gap, we quantify the productivity and performance of shellfish production for on-foot shellfishing and shellfish farms in Galicia (NW Spain) – as two similar economic activities subjected to different fishery management regimes. Thus, while shellfish farms are privately managed, on-foot shellfishing is managed on the basis of a common or shared resource. The paper analyses production, prices, and income for four shellfish species – common cockle (<em>Cerastoderma edule</em>), grooved carpet shell (<em>Ruditapes decussatus</em>), Japanese clam (<em>Ruditapes philippinarum</em>), and pullet carpet shell (<em>Venerupis corrugata</em>) – for 2011–2020 in an area where both forms of production co-exist. This research shows that, since mollusc species are homogeneous from the point of view of buyers, regardless of the production system, any possible differences in productivity between the two activities cannot be explained through prices. Rather, three-quarters of the productivity difference is due to the intensity of capital investment, proxied by the cultivated seed cost, which is different for on-foot shellfishing and shellfish farms. Endogenous dynamics in the behaviour of shellfish farms lead them to be more efficient than on-foot shellfishers in exploiting shellfish resources, due to incentives that do not exist for on-foot shellfishing.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106599"},"PeriodicalIF":3.5,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154375","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 : 2025-01-27DOI: 10.1016/j.marpol.2025.106604
Jinpeng Wang, Xiaohan Fan
{"title":"Traditional knowledge of Arctic Indigenous Peoples and the establishment of area-based management tools beyond national jurisdiction","authors":"Jinpeng Wang, Xiaohan Fan","doi":"10.1016/j.marpol.2025.106604","DOIUrl":"10.1016/j.marpol.2025.106604","url":null,"abstract":"<div><div>Traditional knowledge of Arctic Indigenous Peoples plays an important role in Arctic marine environment protection. The BBNJ Agreement presents a significant opportunity for international law to more fully acknowledge the role of traditional knowledge and its custodians in ocean governance and marine ecosystem management. It also provides legal framework for establishing area-based management tools (ABMTs) beyond national jurisdiction. This paper aims to explore the role and significance of traditional knowledge of Arctic Indigenous Peoples in the establishment of ABMTs beyond national jurisdiction. It is concluded that three distinct approaches can be adopted to facilitate the integration of traditional knowledge from Arctic Indigenous Peoples into ABMTs in the Arctic marine region. These include leveraging Indigenous Peoples’ traditional knowledge to aid States in identifying areas and crafting proposals, engaging through regional organizational mechanisms like the Arctic Council, and participating via the BBNJ Agreement’s mechanisms.</div></div>","PeriodicalId":48427,"journal":{"name":"Marine Policy","volume":"174 ","pages":"Article 106604"},"PeriodicalIF":3.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154373","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}