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Participatory seascape mapping: A community-based approach to ocean governance and marine conservation
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2024.107531
Isabel James
Despite the global proliferation of ocean governance frameworks that feature socioeconomic variables, the inclusion of community needs and local ecological knowledge remains underrepresented. Participatory mapping or Participatory GIS (PGIS) has emerged as a vital method to address this gap by engaging communities that are conventionally excluded from ocean planning and marine conservation. Originally developed for forest management and Indigenous land reclamation, the scholarship on PGIS remains predominantly focused on terrestrial landscapes. This review explores recent research that employs the method in the marine realm, detailing common methodologies, data types and applications in governance and conservation. A typology of ocean-centered PGIS studies was identified, comprising three main categories: fisheries, habitat classification and blue economy activities. Marine Protected Area (MPA) design and conflict management are the most prevalent conservation applications of PGIS. Case studies also demonstrate the method's effectiveness in identifying critical marine habitats such as fish spawning grounds and monitoring endangered megafauna. Participatory mapping shows particular promise in resource and data limited contexts due to its ability to generate large quantities of relatively reliable, quick and low-cost data. Validation steps, including satellite imagery and ground-truthing, suggest encouraging accuracy of PGIS data, despite potential limitations related to human error and spatial resolution. This review concludes that participatory mapping not only enriches scientific research but also fosters trust and cooperation among stakeholders, ultimately contributing to more resilient and equitable ocean governance.
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引用次数: 0
Port congestion and resilience in Shanghai during the Citywide lockdown
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2024.107501
Liehui Wang , Chen Su
The outbreak of the COVID-19 pandemic in Shanghai during the first half of 2022 led to the implementation of strict lockdown measures by the municipal government, resulting in nearly complete disruption of water and land transportation and severely impacting the operations of various ports. Nonetheless, existing research has overlooked the micro-level examination of how individual ports, under regional lockdown conditions, collaboratively respond to external shocks and enhance their resilience through cooperation. This study analyzed the congestion, operational conditions, changes in external connectivity, and resilience characteristics of Shanghai’s ports between January and June 2022 using ship data from ports. We observed congestion occurring in both the Yangshan Port Area and the Waigaoqiao Port Area of Shanghai Port, demonstrating a notable level of resilience. Furthermore, we elucidated how, in the context of lockdown measures, a distinctive maritime transportation network pattern has been established through external support and collaborative division of labor among ports in the Yangtze River Delta region and along the Yangtze River coast. Additionally, we offered practical experience and referenced solutions for stakeholders within the port industry.
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引用次数: 0
Detection of wetland degradation and restoration in urbanizing Zhuhai City based on google earth engine
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2024.107518
Bin Ai , Zhenlin Lai , Jiali Zeng , Zhuokai Jian , Jun Zhao , Shaojie Sun
Wetlands play a crucial role in maintaining ecological balance and promoting sustainable social development. Accurately detecting the spatio-temporal changes of wetlands is essential for coastal ecological conservation and management. Taking Zhuhai City as a case study, we employed a methodology combining random forest classification and recursive feature elimination to classify long-term scale wetlands based on the Google Earth Engine cloud platform. Landscape pattern indices were introduced to detect the spatial and temporal evolution of wetlands over the past 35 years. The degradation and restoration of wetlands between 2013 and 2022 were evaluated by examining landscape changes. The results indicate that incorporating seasonal variation features can effectively distinguish between mangroves and paddy fields. Feature selection has significantly improved the classification accuracy. From 1988 to 2022, the area of wetlands in Zhuhai City decreased by 11.88%, with natural wetlands continuously declining. Human activities have escalated fragmentation, decreased homogeneity, and reduced interconnectivity of wetland landscapes. Between 2013 and 2022, the total area of degraded wetlands exceeded that of recovered wetlands. Although the extent of functional wetlands with high degradation rates has decreased since 2018, the area of recovered wetlands has also declined. Urbanization and variation of natural environmental factors are conducive to the wetland degradation. This study proposes a generic approach for monitoring wetland dynamics, providing data support and a scientific basis for wetland conservation and risk management in coastal regions. In the future, it is advisable to implement multi-departmental coordination mechanism in the management of wetland resource, strictly restrain the activities of reclamation and aquaculture, establish protection red lines, maintain existing protection areas, and enhance public awareness on wetland conservation. These measures aim to balance economic growth with wetland conservation, ensuring the long-term health of Zhuhai's vital wetland ecosystems.
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引用次数: 0
Reviving shellfish reef socio-ecological histories for modern management and restoration
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2025.107540
Brad Martin , Charlie Huveneers , Simon Reeves , Ryan Baring
Significant changes in the exploitation and management of coastal resources over the past three centuries have coincided with global declines in natural ecosystems and their socio-ecological services. Shellfish ecosystems have suffered enormous declines across temperate and tropical coastal ecosystems worldwide. Efforts to restore shellfish reefs have increased due to growing awareness of their loss and ecological importance. However, successful conservation requires robust knowledge of ecosystem characteristics, stressors, and socio-cultural support. In turn, this information can underpin coastal management, restoration targets, and help foster stakeholder support. Establishing evidence-bases can, however, be difficult due to ecological regime shifts and fragmented knowledge sources. Here, data from diverse literature records were integrated to synthesise South Australia's past shellfish ecosystem distribution, management, and socio-ecological services. Specifically, we contrasted available accounts of flat oyster (Ostrea angasi), razor clam (Pinna bicolor), and hammer oyster (Malleus meridianus) ecosystems, and their co-occurrence. Based on historical records, we documented 140 potential shellfish reef locations, with these ecosystems previously characterising >2630 square kilometres of South Australia's coastal waters. This review also collates literature concerning shellfish harvesting, both prior to, and following European colonial influence. We estimate that over 43 million flat oysters were commercially harvested statewide between 1849 and 1915, prior to their functional extinction by the 1940s. Flat oyster reef declines motivated South Australia's earliest fisheries legislation (est. 1853) and marine restoration efforts, including fishery closures (est. 1875), shellfish translocation (est. 1887), and marine reserves (est. 1912). Historical records indicate that shellfish reefs, of multiple ecosystem-forming bivalves, diminished over the past ≈200 years due to cumulative impacts of destructive benthic fishing practices, environmental stressors, and changes in marine resource management. By reconstructing past shellfish reef distributions and socio-cultural connections, this review identifies evidence-based opportunities and key knowledge gaps to guide future research and management efforts.
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引用次数: 0
The concept of 'nature-based solutions' applied to urban coastal risks: A bibliometric and content analysis review
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2024.107530
Aubrée Louarn , Catherine Meur-Ferec , Nathalie Hervé-Fournereau
Nature-based solutions (NBS) are increasingly proposed as a response to the growing vulnerability of coastal areas to the risks of coastal erosion and flooding. These solutions rely on the functioning of ecosystems to mitigate the effects of coastal hazards. However, the ability of ecosystems to act as buffer zones is being compromised due to increasing urbanization in coastal areas. The implementation of NBS in urbanized coastal areas is becoming a major challenge for our societies, as coastal cities densely concentrate populations and valuable assets. This study has two main objectives: (1) to provide a structured overview of current NBS research and (2) to explore whether and how NBS are utilized in urban coastal risk management. A critical review of the literature serves as a foundation for understanding how NBS is conceptualized, identifies the factors contributing to the ambiguity of the term, and proposes five key elements for defining NBS. A systematic review of 3384 publications from Scopus shows that coastal issues represent a secondary focus in NBS research (14%). Coastal NBS studies primarily address coastal erosion and flooding exacerbated by sea level rise through natural coastal ecosystems. While urban issues related to climate change are at the heart of NBS research, the urban dimension has very little connection with coastal NBS. This article highlights the need for a multifaceted response to manage coastal risks in coastal cities, combining hard and soft engineering (hybrid solutions), inshore and offshore NBS, coastal and stormwater NBS, and regulating urbanization in flood-prone areas. The application of NBS in coastal risk management calls for incorporating natural coastline dynamics into land-use planning and rethinking our fixed modes of coastal occupation. This article provides keys to understanding the concept of NBS to facilitate its integration into coastal risk management plans.
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引用次数: 0
Construction of a blue-green ecological network in the Luoyuan Bay Area in Southeast China via the identification of important habitats
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2025.107541
Feijian Yin , Huaxiang Chen , Faming Huang , Qiuming Chen
Identifying important habitats in the bay area is essential for constructing a land–sea blue-green ecological network. Here, we focused on Luoyuan Bay on the west coast of Taiwan Strait and the southeast coast of China and characterized the spatial distribution of production, living, and ecological space based on the ecological functions of each land use type in the bay area. We then identified ecological source areas and important habitats. Finally, we analyzed the ecological corridors and key nodes, constructed a “blue-green” ecological network that combines “point-line-plane” in the sea and land areas, and make strategies to optimize the network. The results of the study indicated that: (1) The production, living, and ecological spaces of Luoyuan Bay Area were significantly differentiated. Seven combinations of land use functions were examined, and single function-dominated space was predominant; the ecological function-dominated space accounted for 77.79% of the entire study area. (2) Most of the ecological source sites were distributed in the peripheral and central waters of the study area, and the first and second-level ecological source sites accounted for 75.72% and 8%, respectively. The spatial distribution of important habitats was generally homogeneous, but some parts in the land–sea interface area have more fragmented habitat patches and less connectivity. (3) There were 20 ecological corridors connecting land and sea and 27 key ecological nodes in Luoyuan Bay; most of the key ecological nodes are distributed in these corridors. (4) Important habitats in the Bay Area comprised key ecological nodes, such as ecological corridors connecting land and sea with ecological pinch points and ecological obstacle points. The “point-line-plane” optimization principle can facilitate the scientifically based construction of a blue-green ecological network pattern connecting the sea and land in the Bay Area. (5) Strategies such as project construction and policy development and implementation across regions will maximize the effectiveness of ecological network construction and optimization in the Bay Area. This can enhance the ecological security pattern and promote ecological circulation of the land–sea interface. Overall, our findings provide key information that will aid the construction of the ecological security pattern, as well as the planning of ecological protection and restoration measures that could be implemented in the land–sea interface of the Bay Area.
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引用次数: 0
Exploring the diverse values local people associate with marine protected areas and the implications for sustainable ocean management
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2024.107523
Shun Kageyama, Abigayil Blandon, Robert Blasiak
Marine protected area (MPA) management requires local people's participation in order to deliver lasting ecological and social benefits. This is crucial to avoid “paper parks” and to encourage self-regulation and enhance social well-being among stakeholders. However, promoting sustained participation by diverse stakeholders is a challenge due to the diversity of ways in which they perceive the benefits of MPAs, and some of these perceptions are associated with specific occupations and value preferences. A place-based case study was conducted on the Yonarasuido Strait in the Yaeyama region, Japan, which is covered by two MPAs: a government-led top-down national park and a fishermen-led bottom-up spawning ground reserve. This study investigated local people's value preferences from instrumental, intrinsic, and relational perspectives using the Q-methodology and semi-structured interviews. To understand broader interactions among different groups, the study focused on both marine tourism and fisheries. The Q-method analysis identified three groupings based on the values people emphasize for the MPAs. As a result of the analysis, these groups were defined as (1) “Original Goals First,” characterized by the emphasis on initial objectives and fisheries resource management; (2) “Disconnected Stewards,” who expect nature conservation while being emotionally detached from the MPAs; and (3) “Tourism vs. Fisheries,” reflecting polar divisions between fisheries and marine tourism. The results suggest that understanding the value preferences of a diverse range of stakeholders through a comprehensive lens can provide a more holistic picture of MPA management and the areas of consensus and disagreement in the governance system. Based on the findings, recommendations for future MPA management are proposed regarding adaptive management, information dissemination, and collaboration between different stakeholder groups.
{"title":"Exploring the diverse values local people associate with marine protected areas and the implications for sustainable ocean management","authors":"Shun Kageyama,&nbsp;Abigayil Blandon,&nbsp;Robert Blasiak","doi":"10.1016/j.ocecoaman.2024.107523","DOIUrl":"10.1016/j.ocecoaman.2024.107523","url":null,"abstract":"<div><div>Marine protected area (MPA) management requires local people's participation in order to deliver lasting ecological and social benefits. This is crucial to avoid “paper parks” and to encourage self-regulation and enhance social well-being among stakeholders. However, promoting sustained participation by diverse stakeholders is a challenge due to the diversity of ways in which they perceive the benefits of MPAs, and some of these perceptions are associated with specific occupations and value preferences. A place-based case study was conducted on the Yonarasuido Strait in the Yaeyama region, Japan, which is covered by two MPAs: a government-led top-down national park and a fishermen-led bottom-up spawning ground reserve. This study investigated local people's value preferences from instrumental, intrinsic, and relational perspectives using the Q-methodology and semi-structured interviews. To understand broader interactions among different groups, the study focused on both marine tourism and fisheries. The Q-method analysis identified three groupings based on the values people emphasize for the MPAs. As a result of the analysis, these groups were defined as (1) “Original Goals First,” characterized by the emphasis on initial objectives and fisheries resource management; (2) “Disconnected Stewards,” who expect nature conservation while being emotionally detached from the MPAs; and (3) “Tourism vs. Fisheries,” reflecting polar divisions between fisheries and marine tourism. The results suggest that understanding the value preferences of a diverse range of stakeholders through a comprehensive lens can provide a more holistic picture of MPA management and the areas of consensus and disagreement in the governance system. Based on the findings, recommendations for future MPA management are proposed regarding adaptive management, information dissemination, and collaboration between different stakeholder groups.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"261 ","pages":"Article 107523"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165296","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}
引用次数: 0
Stomach content analysis reveals insights into the feeding ecology of coastal cetaceans in Sarawak, Malaysia
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2024.107522
Ernadia Elsie Jaya Lawrence , Cindy Peter , Gianna Minton , Jongkar Grinang , Melvin Terry Gumal , Anna Norliza Zulkifli Poh , Vivian Soon , Amanda Wilson , James Bali , Samantha Ambie , Dayang Nuriza Abang Abdillah , Ian Levi Jackery , Sandy Choo Ling , Andrew Alek Tuen
This study examined the stomach contents of seven Indo-Pacific finless porpoises (Neophocaena phocaenoides), two Irrawaddy dolphins (Orcaella brevirostris), and one Indo-Pacific humpback dolphin (Sousa chinensis) retrieved from stranding and bycatch events along the Sarawak coastline. From these stomach contents, 170 fish, 150 cephalopod, and six crustacean loose prey items were found, representing 23 prey species from 18 families. Prey item importance was assessed using the percentage by number and percentage by frequency of occurrence methods as well as a modified index of relative importance. The diet of finless porpoises comprised 64% cephalopods, 33% fish and 3% crustaceans. The prey items found in Irrawaddy dolphins stomachs comprised 99% fish and 1% cephalopods. All three cetacean species were found to feed on fish across a wide range of trophic levels. Finless porpoises and Irrawaddy dolphins shared the most numerically important fish family, the Engraulidae (anchovies). Meanwhile, the Ariidae (catfish) family was the most numerically important fish family for the humpback dolphin. A few prey species found in the stomach contents (i.e. anchovies, drums or croakers, marine catfish and false trevally) are commercially important fish species in Sarawak. This overlap, coupled with previous studies that demonstrate co-occurrence of cetacean hotspots and artisanal and commercial fishing effort, suggests a high likelihood of cetacean-fisheries interactions and elevated risk of cetacean entanglement and mortality. This is a serious concern, as humpback dolphins and finless porpoises are considered Vulnerable and Irrawaddy dolphins Endangered on the IUCN Red List of Threatened Species. All dolphins and finless porpoises are also listed as Totally Protected in Sarawak's Wild Life Protection Ordinance (1998).
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引用次数: 0
Introducing dynamics into coastal recreational management: Humans-sharks interactions case study
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2024.107524
Shiri Zemah-Shamir , Inbar Schwartz Belkin , Ziv Zemah-Shamir , Michelle E. Portman
Area-based management tools, including marine protected areas (MPAs) and time-area closures, are accepted and effective forms of management utilized to mitigate local human impacts on marine species and ecosystems. In the Hadera Stream estuary in Israel, two vulnerable shark species aggregate every winter in a highly active coastal area frequented by snorkelers, SCUBA divers, recreational fishers, and motorized and non-motorized water sports enthusiasts. The interaction between humans and sharks raises important concerns for the safety of individuals near these apex predators and for the sharks' welfare. The Hadera Stream estuary, impacted by heated water discharged from the nearby Hadera power station, experiences significant anthropogenic effects, leading the Israeli Nature and Parks Authority to disqualify it from designation as an MPA. By employing the Delphi technique with relevant experts, we identified activities posing the greatest threats in human-shark interactions. Using this information, we have proposed restricting human activities to only during specific times. Our research findings provide valuable insights for potential regulators. This study represents the initial step in promoting area-based conservation in Israel, aiming to dynamically balance human recreational needs with shark conservation. The study underscores how utilizing specific technological advancements in shark tracking can advance an ecosystem-based approach, enabling tailored management practices that account for both conservation and recreational uses.
{"title":"Introducing dynamics into coastal recreational management: Humans-sharks interactions case study","authors":"Shiri Zemah-Shamir ,&nbsp;Inbar Schwartz Belkin ,&nbsp;Ziv Zemah-Shamir ,&nbsp;Michelle E. Portman","doi":"10.1016/j.ocecoaman.2024.107524","DOIUrl":"10.1016/j.ocecoaman.2024.107524","url":null,"abstract":"<div><div>Area-based management tools, including marine protected areas (MPAs) and time-area closures, are accepted and effective forms of management utilized to mitigate local human impacts on marine species and ecosystems. In the Hadera Stream estuary in Israel, two vulnerable shark species aggregate every winter in a highly active coastal area frequented by snorkelers, SCUBA divers, recreational fishers, and motorized and non-motorized water sports enthusiasts. The interaction between humans and sharks raises important concerns for the safety of individuals near these apex predators and for the sharks' welfare. The Hadera Stream estuary, impacted by heated water discharged from the nearby Hadera power station, experiences significant anthropogenic effects, leading the Israeli Nature and Parks Authority to disqualify it from designation as an MPA. By employing the Delphi technique with relevant experts, we identified activities posing the greatest threats in human-shark interactions. Using this information, we have proposed restricting human activities to only during specific times. Our research findings provide valuable insights for potential regulators. This study represents the initial step in promoting area-based conservation in Israel, aiming to dynamically balance human recreational needs with shark conservation. The study underscores how utilizing specific technological advancements in shark tracking can advance an ecosystem-based approach, enabling tailored management practices that account for both conservation and recreational uses.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"261 ","pages":"Article 107524"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165299","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}
引用次数: 0
Collaborative governance of China-ASEAN maritime drug control: Mechanisms, challenges, and improvements
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2025-02-01 DOI: 10.1016/j.ocecoaman.2025.107548
Wei Wang , Yanli Bai , Jinyu Xu , Taiyang Li
The global proliferation of drug-related issues, particularly maritime smuggling, poses a substantial threat to international security. The Golden Triangle continues to be a principal source of illicit drugs. The burgeoning maritime trade between China and ASEAN nations further magnifies these challenges. This research investigates the current state and emerging trends of China-ASEAN maritime drug control cooperation with a focus on the evolution of the cooperation framework. The identified challenges include fragmented institutional structures, issues with evidence preservation, limited information sharing, and insufficient enforcement resources. Through case studies and data analysis, this study offers targeted solutions, such as fortifying legal frameworks, enhancing international collaboration, adopting cutting-edge detection technologies, and bolstering enforcement resources. By addressing these issues, this study aims to contribute to the development of more effective maritime anti-drug policies, thereby advancing governance practices in maritime drug control and improving regional security and cooperation.
{"title":"Collaborative governance of China-ASEAN maritime drug control: Mechanisms, challenges, and improvements","authors":"Wei Wang ,&nbsp;Yanli Bai ,&nbsp;Jinyu Xu ,&nbsp;Taiyang Li","doi":"10.1016/j.ocecoaman.2025.107548","DOIUrl":"10.1016/j.ocecoaman.2025.107548","url":null,"abstract":"<div><div>The global proliferation of drug-related issues, particularly maritime smuggling, poses a substantial threat to international security. The Golden Triangle continues to be a principal source of illicit drugs. The burgeoning maritime trade between China and ASEAN nations further magnifies these challenges. This research investigates the current state and emerging trends of China-ASEAN maritime drug control cooperation with a focus on the evolution of the cooperation framework. The identified challenges include fragmented institutional structures, issues with evidence preservation, limited information sharing, and insufficient enforcement resources. Through case studies and data analysis, this study offers targeted solutions, such as fortifying legal frameworks, enhancing international collaboration, adopting cutting-edge detection technologies, and bolstering enforcement resources. By addressing these issues, this study aims to contribute to the development of more effective maritime anti-drug policies, thereby advancing governance practices in maritime drug control and improving regional security and cooperation.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"261 ","pages":"Article 107548"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165912","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}
引用次数: 0
期刊
Ocean & Coastal Management
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