Ocean & Coastal Management最新文献

{"title":"Factors influencing ship detentions: Pre- and post-pandemic analysis","authors":"","doi":"10.1016/j.ocecoaman.2024.107344","DOIUrl":"10.1016/j.ocecoaman.2024.107344","url":null,"abstract":"<div><p>Extensive research has examined the determinants of ship detentions during port state control inspections. This study integrates market factors into the analysis of ship deficiencies and detention duration for the first time. To analyze the factors affecting the number of deficiencies and detention duration, a comprehensive system of indicators incorporating intrinsic attributes (e.g., ship age, flag state, gross tonnage, and ship type) and extrinsic factors (e.g., flag state and recognized organizations' performance level, historical inspections, and detentions of port states) was established. Employing statistical analysis, we formulated four generalized linear models to assess the temporal variations in these factors across the pre- and post-pandemic periods. Our results indicate that inspection authorities (port states) consistently influence detentions across various ship categories, and the extent of reported ship deficiencies and detention duration varies with the enforcement rigor of port states. Notably, the shipping market's impact is most evident in bulk carriers and oil tankers, with the pandemic markedly influencing port state inspections. In the post-pandemic era, the niche shipping market has seen a decline in the impact of detention duration on bulk carriers and tankers, and in the number of deficiencies on container ships. China and Russia have increased inspections of bulk carriers and oil tankers, while the impact of Australia and Japan on bulk carriers and container ships has weakened. This research not only explores the association between the shipping market and ship detentions for the first time but also contrasts the detention landscape pre- and post-pandemic, offering insights for shipping companies and port authorities to enhance ship operational safety.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142151181","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":"Investigating spatiotemporal coastline changes and impacts on coastal zone management: A case study in Pearl River Estuary and Hong Kong's coast","authors":"","doi":"10.1016/j.ocecoaman.2024.107354","DOIUrl":"10.1016/j.ocecoaman.2024.107354","url":null,"abstract":"<div><p>Changes in coastlines and coastal zones reflect human activities and global changes. Using Landsat imagery from 1998 to 2021, the temporal and spatial variation characteristics of coastlines and the coastal zone land-use/land-cover (LULC) in Pearl River Estuary and Hong Kong's coast were studied during this period, followed by an analysis of how human activity affects coastline changes, in an attempt to provide a basis for decision-making in coastal zone management. Our results show that the coastline expanded outward, demonstrating an obvious trend that featured increasing length. The coastal zone was observed to primarily comprise construction land and woodland, of which the construction land displayed significant growth in contrast to the woodland's decreasing trend, indicating that the coastline was changing from natural to artificial in character. Human activity in the coastal zone had a significantly positive impact on the coastline length. While the amount of coastline in all sub-regions of the study has increased overall, the coastline length in Guangzhou-Dongguan, in particular, exhibited the greatest growth. During analysis, a positive correlation emerged between coastline length and fractal dimension, in particular, the correlation between Shenzhen coastline length and fractal dimension demonstrated the highest level among the four sub-regions studied. With the exception of Hong Kong, construction land increased significantly in all coastal areas and encroached on other types of land, such as cultivated land and woodland. In addition, except for Hong Kong, human disturbance in the coastal zone increased. Among all study areas, Shenzhen revealed a significant increase in human disturbance over the period of interest, exhibiting the highest level of this factor among the sub-regions of the study. These findings could potentially facilitate effective coastal zone management to achieve sustainable development in coastal areas.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142136537","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":"Turning the ships around: The Russia-Ukraine conflict reshapes the US LNG maritime transportation network","authors":"","doi":"10.1016/j.ocecoaman.2024.107351","DOIUrl":"10.1016/j.ocecoaman.2024.107351","url":null,"abstract":"<div><p>Energy exports are considered a form of power. Following the Russia-Ukraine conflict, the US, as an emerging natural gas exporter, has strengthened energy transport with its allies. However, quantitative analysis of how geopolitical events influence the US's exercise of energy power remains an underexplored area. In this study, we used Automatic Identification System data and US ally relationship data to explore the spatial impacts of the Russia-Ukraine conflict on global liquefied natural gas (LNG) maritime transport and changes in US transport patterns before and after the conflict. The results show that the conflict has tightened US alliances. Transatlantic shipping activity increased the most during the time of soaring global LNG prices, with US treaty allies' coastal areas becoming the most active. Owing to the rerouting of transport ships, traffic through the Panama Canal decreased while Strait of Dover traffic increased, significantly enhancing the US’ transport route coverage to core treaty allies. Our results highlight the potential for future conflict events and emphasize the need to enhance global energy security resilience; prevent LNG from becoming a political tool; and design secure, efficient, and resilient national energy policies.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142136538","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":"Clean energy ship application to promote carbon neutrality in global maritime industry: State governance or international supervision？","authors":"","doi":"10.1016/j.ocecoaman.2024.107356","DOIUrl":"10.1016/j.ocecoaman.2024.107356","url":null,"abstract":"<div><p>The global maritime industry is facing the goal to achieve \"carbon neutrality\", and substituting traditional ship fuel with clean energy is the most important solution. Whether to promote clean-energy ships through state governance or unified international supervision to achieve carbon neutrality has been a long-standing debate. This study employs both a tripartite evolutionary game model and a quadrilateral evolutionary game model to compare the effectiveness of state governance and unified international supervision in promoting clean-energy ships. The tripartite model simulates interactions between local governments, shipping companies, and shippers, revealing that high subsidy costs reduce local governments' incentives to promote clean-energy ships. The quadrilateral model introduces international supervision, demonstrating that a unified international oversight mechanism can accelerate the global maritime industry's progress toward carbon neutrality. Numerical simulations indicate that lowering the purchase costs of clean-energy ships and introducing government subsidies significantly influence the adoption of clean-energy ships, while supervision costs impact the effectiveness of international regulations. These findings provide critical insights for policymakers aiming to balance financial incentives and global supervision strategies to foster low-carbon development in the maritime sector.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142129376","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":"Carbon stocks in mangrove ecosystems of Sri Lanka: Average contributions and determinants of sequestration potential","authors":"","doi":"10.1016/j.ocecoaman.2024.107357","DOIUrl":"10.1016/j.ocecoaman.2024.107357","url":null,"abstract":"<div><p>Mangroves are crucial in carbon sequestration despite covering only a small percentage of the Earth's surface. Latitudinal gradient primarily determines the distribution of climatic zones of distinct sunlight, temperature, and precipitation patterns, which influence the community structure of the mangrove ecosystem. The tropical climate of Sri Lanka contributes to the island's lush mangrove forests. The present study estimated that the average island's carbon sequestration capacity of Sri Lankan mangrove ecosystems is 524.25 t/ha representing a substantial volume of carbon storage that contributes to offset greenhouse effect due to increasing atmospheric CO₂. Our results substantiated that rainfall positively influences total carbon sequestration capacity of mangrove ecosystems.</p><p>It was also revealed that a positive relationship exists between vegetation structural complexity and sediment organic carbon, highlighting the influence of vegetation structure, that is primarily dependent on climatic conditions, on production of organic matter and sediment carbon sequestration. Globally, the carbon sink function of mangrove ecosystems is reported to be highest in the tropical areas and it declines towards sub-tropical higher latitudes while those in the southern hemisphere perform better carbon sinks than those in the northern hemisphere.</p><p>The vertical distribution of total organic matter content in mangrove sediments was revealed to be in a descending order, manifesting the weak tidal removal of surface organic matter under the microtidal conditions in Sri Lankan marine waters, thus qualifying mangrove ecosystems in microtidal coasts as effective carbon sinks.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142117603","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":"Exploring boaters’ intentions and awareness to explain why some anchor on coral reefs","authors":"","doi":"10.1016/j.ocecoaman.2024.107352","DOIUrl":"10.1016/j.ocecoaman.2024.107352","url":null,"abstract":"<div><p>Coral reefs provide a variety of ecosystem services to humans, but are also degrading due to human activities such as damage from boat anchoring. Anchoring on reef could occur intentionally, because boaters prioritize other considerations that outweigh any desire to not anchor on reef, or unintentionally, because they lack true awareness of the seabed habitat. We conducted structured interviews, informed by the Theory of Planned Behavior, with 130 boaters in the British Virgin Islands to uncover the motivations and awareness underlying their anchoring behavior. Perceived awareness is rarely ground-truthed, so we checked interview responses of anchored boats by snorkeling to observe the seabed underlying their anchor and anchor chain. All respondents stated a strong aversion to anchoring on coral reef. The few boats we observed anchored on reef did so unintentionally due to a mismatch between their perceived and actual awareness of the seabed habitat. Potential management actions to reduce anchoring on reef thus include measures that increase awareness of seabed habitats. Mooring buoys are an alternative to anchoring at some sites, so increased use of moorings is another option because it should decrease the proportion of boats that anchor, which, in turn, should reduce unintentional anchoring on coral. The decision to use a mooring rather than anchor is, however, multifaceted. Boaters are less likely to choose moorings if they perceive moorings as inconvenient to pre-book, do not trust the moorings are secure, or prefer more secluded areas. Boaters also noted that, during peak boating season, the option to moor is reduced because moorings are sometimes fully occupied. Despite this complexity, our findings suggest several local management options that could further reduce the minority of boats anchoring on coral.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095095","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":"On the centrality of tenure in spatial data systems for coastal/marine management: International exemplars versus emerging practice in Ireland","authors":"","doi":"10.1016/j.ocecoaman.2024.107309","DOIUrl":"10.1016/j.ocecoaman.2024.107309","url":null,"abstract":"<div><p>Although it is often overlooked, access to data regarding ‘tenure’ is of primary importance in underpinning coastal management and marine spatial planning (MSP). National, regional and international coastal/marine spatial data management exemplars demonstrate the need for clarity and certainty with respect to legal coastal/marine geographies (i.e. the basis for achieving security of tenure). Good practice in MSP is underpinned by four key pillars (use’, ‘value’, ‘development’ and ‘tenure’ (U,V,D,T)). The exemplars demonstrate the importance of currency in the statutory delineation of the coastline (HWM) and the spatial extent of the ‘coastal zone’ and tenure therein.</p><p>The National Marine Planning Framework (NMPF), established in Ireland in 2021, provides the foundations for three of the interrelated management (U,V,D) pillars but those relating to ‘tenure’ are largely absent. Coastal/marine management platforms and data gateways have yet to be fully developed to meet emerging marine/offshore obligations while national data portals remain primarily terrestrial in focus. Early steps to create a MSP ‘one stop’ web portal (<span><span>MarinePlan.ie</span><svg><path></path></svg></span>) are rather limited when benchmarked against international exemplars that do include information related to tenure. This is particularly important as legislation enacting the adoption of the NMPF extends planning control and the marine consent authorisations process of Irish Coastal Local Authorities (CLAs) to also include the nearshore (three nautical miles seaward from High Water Mark (HWM)). To achieve MSP targets, information on coastal/marine legal and regulatory interests across the land/sea interface needs to match that currently available in terrestrial settings.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0964569124002941/pdfft?md5=6298c0607dbfd3fe527b67b4c790362b&pid=1-s2.0-S0964569124002941-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142089007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of the coral reef system on the tsunami propagation of the 2004 Indian Ocean event in North Male Atoll","authors":"","doi":"10.1016/j.ocecoaman.2024.107348","DOIUrl":"10.1016/j.ocecoaman.2024.107348","url":null,"abstract":"<div><p>The relationship between the 2004 Indian Ocean Tsunami (IOT) with the Maldivian reef remains unclear. Following the tsunami event, some field-based studies suggest that specific reef areas offered protection against the tsunami waves. However, a quantitative study is lacking to assess the buffering role of this reef system. Considering its significance for fisheries and tourism, there is an urgent need to understand the reef dynamics during the IOT. Here, we aim to address the scientific gaps related to the reef impact on the tsunami waves in North Male Atoll. Our findings indicate that the coral cover contributed to a marginal reduction in energy flux along approximatively 90% of Eastern North Male shoreline. Over 80% of the area experienced a 60% decrease in tsunami energy flux due to the presence of the reef platform. The distance reef-island, the proportion of reef coverage relative to island and the tsunami wavelength also play a role in influencing tsunami energy flux. This research not only addresses a critical knowledge gap regarding the reef dynamic during a tsunami event, but also emphasizes the importance of considering coral reefs in the context of sustainable coastal management, disaster preparedness and anthropogenic climate change stressors.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0964569124003338/pdfft?md5=e7154fa5b718f91599871edb29c87f57&pid=1-s2.0-S0964569124003338-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142089008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the importance-performance analysis of adaptive capacity programs for sustainable mangrove conservation in the Taman Nasional Bali Barat conservation area","authors":"","doi":"10.1016/j.ocecoaman.2024.107345","DOIUrl":"10.1016/j.ocecoaman.2024.107345","url":null,"abstract":"<div><p>Mangroves, which are vital for maintaining the stability of coastal ecosystems, are facing increasing threats from global changes. This highlights the urgent need for effective adaptive capacity programs. This study focuses on the evaluation of such programs within Taman Nasional Bali Barat, Indonesia, specifically looking at their effectiveness in promoting sustainable mangrove conservation. To obtain a comprehensive understanding of the community's involvement and perspectives, a survey was conducted, including a wide range of local stakeholders, not just those already involved in conservation efforts. The findings revealed that programs that prioritize flexibility, learning, and agency are crucial, but are currently underperforming. Interestingly, there was a significant variation in the willingness to participate among different groups. Fishermen and students displayed negative tendencies, while limited interest communities (a population segment historically less engaged in conservation), those with previous experiences with conservation programs, those seeking advice on marine activities, and those influenced by policies showed positive and significant responses. For example, tourist operators also exhibited a significantly positive engagement. Based on the analysis, this study provides targeted policy recommendations to enhance stakeholder engagement, improve program flexibility, and emphasize educational efforts. These recommendations aim to strengthen the adaptive capacity for sustainable mangrove management in the face of ongoing global changes.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142076635","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":"Exploring the dynamic impact of the Northern Sea Route on China-Europe multimodal transportation competition in the context of the Belt and Road Initiative","authors":"","doi":"10.1016/j.ocecoaman.2024.107346","DOIUrl":"10.1016/j.ocecoaman.2024.107346","url":null,"abstract":"<div><p>As Arctic sea ice continues to melt, the Northern Sea Route (NSR) is anticipated to become the third major China-Europe transportation corridor, alongside the Suez Canal Route (SCR) and China Railway Express (CRE). This study investigates the integration of the NSR into the Belt and Road multimodal transportation network and analyzes its dynamic competition with traditional corridors across heterogeneous regions and markets in China. To achieve this, we developed a novel hybrid multi-criteria decision-making (MCDM) framework to evaluate the NSR's potential as an alternative China-Europe trade route. This framework introduces a new criteria utility function (CUF) and integrates the Bayesian best-worst method (BBWM) and measurement of alternatives and ranking according to compromise solution (MARCOS) method. This approach evaluates and prioritizes routes based on cost, time, reliability, safety, sustainability, and convenience, thereby detailing the NSR's market advantages and business prospects. The findings suggest that simply increasing the frequency of transportation services is insufficient to attract Chinese customers to the NSR. Instead, the route's competitiveness is primarily determined by transportation costs. In future scenarios, the NSR will offer additional route options for China-Europe containerized intermodal transport, potentially serving as a complementary corridor to the SCR and CRE under certain conditions. Coastal and sub-coastal regions north of Fujian Province are potential markets for the NSR, while inland regions far from seaports are better suited for connections via the CRE. Notably, time-insensitive containerized cargoes, such as industrial accessories, mechanical equipment, and metal crafts, exhibit higher potential demand for the NSR. In contrast, time-sensitive commodities like fashion apparel, electronics, and medical devices are more likely to be transported by cross-border railroads due to their urgency. Stakeholders, including government agencies, shipping companies, and exporters, can utilize these insights to optimize China-Europe transport organization and effectively commercialize the NSR.</p></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142084152","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}