Ocean & Coastal Management最新文献

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Dual impacts of human activities on land cover and carbon storage in the Yellow River Delta (1986–2023)
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-28 DOI: 10.1016/j.ocecoaman.2025.107655
Boyang Sun , Houjie Wang , Xiao Wu , Naishuang Bi , Guoyang Wang , Mengyan Wang , Beichen Wang
{"title":"Dual impacts of human activities on land cover and carbon storage in the Yellow River Delta (1986–2023)","authors":"Boyang Sun ,&nbsp;Houjie Wang ,&nbsp;Xiao Wu ,&nbsp;Naishuang Bi ,&nbsp;Guoyang Wang ,&nbsp;Mengyan Wang ,&nbsp;Beichen Wang","doi":"10.1016/j.ocecoaman.2025.107655","DOIUrl":"10.1016/j.ocecoaman.2025.107655","url":null,"abstract":"<div><div>Global warming, driven by excessive CO<sub>2</sub> emissions from fossil fuel combustion, presents urgent challenges for carbon cycle management, necessitating both emission reductions and enhanced carbon sequestration. As vital yet dynamic components of the global carbon cycle, deltas play a crucial role in carbon storage. The Yellow River Delta (YRD), known for its high sediment accumulation and substantial carbon storage potential, exhibits significant variability due to intense human activities, highlighting the need for a deeper understanding of its carbon sequestration dynamics. This study investigates spatiotemporal changes in land use and their impacts on carbon storage in the YRD from 1986 to 2023, using satellite remote sensing, the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) model, and spatial analysis. While the total delta area remained relatively stable, internal land-use shifts were substantial. Grassland and tidal flats declined sharply, from 1730.69 km<sup>2</sup> and 1077.05 km<sup>2</sup> in 1986 to 730.67 km<sup>2</sup> and 641.69 km<sup>2</sup> in 2023, respectively. Meanwhile, construction land and aquaculture reservoirs expanded by 689.39 km<sup>2</sup> and 726.01 km<sup>2</sup>. These transformations caused a net loss of 14.14 Tg C in carbon storage between 1986 and 2015, followed by a partial recovery of 2.47 Tg C by 2023, primarily due to the conversion of cropland to grassland. Ecological restoration projects have been instrumental in reversing carbon losses and improving ecosystem health. This study emphasizes the importance of sustainable land management and targeted ecosystem restoration in mitigating carbon loss and enhancing the ecological resilience of the Yellow River Delta.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107655"},"PeriodicalIF":4.8,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725260","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
Harnessing model-based group decision support systems for more effective stakeholder engagement: Reflections from the field
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-28 DOI: 10.1016/j.ocecoaman.2025.107658
Fran Ackermann , Julian Clifton , Michael Burton , Carmen Elrick-Barr , Euan Harvey , Georgie Hill , Johanna Zimmerhackel
{"title":"Harnessing model-based group decision support systems for more effective stakeholder engagement: Reflections from the field","authors":"Fran Ackermann ,&nbsp;Julian Clifton ,&nbsp;Michael Burton ,&nbsp;Carmen Elrick-Barr ,&nbsp;Euan Harvey ,&nbsp;Georgie Hill ,&nbsp;Johanna Zimmerhackel","doi":"10.1016/j.ocecoaman.2025.107658","DOIUrl":"10.1016/j.ocecoaman.2025.107658","url":null,"abstract":"<div><div>Stakeholder engagement is an integral component of active and participatory decision-making, enabling robust outcomes to be delivered and facilitating organisations in gaining and retaining a social license to operate. However, engaging stakeholders requires methods that realise these benefits whilst avoiding common pitfalls such as tokenism, selective participation, and stakeholder fatigue amongst others. This paper reports on an approach to identify stakeholder perspectives on the socio-economic values associated with decommissioning of Australian offshore oil and gas structures in a manner that enabled a holistic understanding of these values. This involved combining causal mapping with group decision support system technology, allowing a complex range of views to be explored whilst reducing pressures for conformity. The results demonstrate how such a method can ensure transparency and facilitate knowledge sharing between stakeholders, whilst also underlining the significance of a systemic approach to understanding the heterogeneity of stakeholder views. These process outcomes provide policy-makers with insights into the complexities of perceived issues and opportunities associated with offshore decommissioning and an approach that enables a nuanced understanding of these and related grand challenges to be incorporated into marine policy.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107658"},"PeriodicalIF":4.8,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725261","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
Socioeconomic impacts linked to land use and land use changes affecting blue carbon ecosystems in Southeast Asia: A systematic map
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-27 DOI: 10.1016/j.ocecoaman.2025.107643
Maryam Jamilah , Amani Becker , Soon Loong Lee , T.E. Angela L. Quiros , Su Yin Chee , Claire Evans , Yu Yang Tan , Lian Lin Ti , Irsyad Pishal , Amy Yee Hui Then
{"title":"Socioeconomic impacts linked to land use and land use changes affecting blue carbon ecosystems in Southeast Asia: A systematic map","authors":"Maryam Jamilah ,&nbsp;Amani Becker ,&nbsp;Soon Loong Lee ,&nbsp;T.E. Angela L. Quiros ,&nbsp;Su Yin Chee ,&nbsp;Claire Evans ,&nbsp;Yu Yang Tan ,&nbsp;Lian Lin Ti ,&nbsp;Irsyad Pishal ,&nbsp;Amy Yee Hui Then","doi":"10.1016/j.ocecoaman.2025.107643","DOIUrl":"10.1016/j.ocecoaman.2025.107643","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Background&lt;/h3&gt;&lt;div&gt;Land use and land use changes are the main drivers of blue carbon ecosystem (BCE) loss and degradation, which is frequently justified on the pretext of advancing economic and social development. However, there is still a lack of comprehensive investigation of the impacts of these changes on humans and communities, especially in Southeast Asia (SEA). It is also unclear how many studies have accounted for the interconnectedness of BCEs with adjacent or upstream ecosystems, as well as the potential for cascading impacts to occur across physical, chemical, and biological connections. This information is useful to ensure holistic coastal land use planning which achieves the desired outcomes of balancing environmental sustainability, economic growth, and social equity, while effectively managing risks, engaging communities, and aligning policies for long-term resilience and resource efficiency.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Method&lt;/h3&gt;&lt;div&gt;The systematic mapping method was conducted to consolidate and synthesise the state of evidence on the research question, ‘&lt;em&gt;What is the state of evidence on the socioeconomic impacts linked to land use and land use changes affecting blue carbon ecosystems in Southeast Asia?’.&lt;/em&gt; A systematic map is a structured approach used to identify, categorise, assess relevant studies, and identify research gaps on a broad topic area while ensuring comprehensive coverage, transparency, and minimise bias. We conducted bibliographic searches using predefined search terms to locate relevant scientific articles. Five reviewers carried out two rounds of screening independently of each other by applying the predetermined inclusion criteria. We then systematically extracted and coded meta-data and results from the included papers, followed by analysis of the distribution and abundance of the evidence and rapid synthesis of study findings.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;div&gt;Out of 5118 articles screened, 190 final articles were included in the database. Most of these studies are from Indonesia, followed by Vietnam, while Myanmar and Cambodia are less represented than expected, considering their significant mangrove cover. The distribution of studies by ecosystem includes 75 focused on mangroves, 2 on seagrass, 88 on non-BCEs, and 25 covering a combination of two or more ecosystems. The largest research clusters examine the impacts of aquaculture on economic living standards and the effects of urbanisation and industrialisation on general human health. Key research gaps identified include the impacts of land use and land use change on cultural and spiritual values, as well as measures of education.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Conclusions&lt;/h3&gt;&lt;div&gt;Research connecting land use, BCEs and socioeconomic impacts, particularly studies on indirect impacts of land use on BCEs are still limited in this region. Literature on seagrass ecosystems is notably scarce. The current evidence base points to trade-offs in land use change im","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107643"},"PeriodicalIF":4.8,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725305","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
Decadal population depletion, size class reduction, and range contraction of the giant yellow croaker in China: Implications for conservation and management
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-25 DOI: 10.1016/j.ocecoaman.2025.107659
Yining Chen , Yujie Guo , Minhui Li , Xiong Zhang
{"title":"Decadal population depletion, size class reduction, and range contraction of the giant yellow croaker in China: Implications for conservation and management","authors":"Yining Chen ,&nbsp;Yujie Guo ,&nbsp;Minhui Li ,&nbsp;Xiong Zhang","doi":"10.1016/j.ocecoaman.2025.107659","DOIUrl":"10.1016/j.ocecoaman.2025.107659","url":null,"abstract":"<div><div>Many species became threatened long before solid population monitoring studies were conducted, making their conservation very challenging. Here, we utilize local ecological knowledge, grey and peer-reviewed literature data to reveal the population dynamics and decline process of a Critically Endangered large marine fish (the giant yellow croaker) in the Pearl River Estuary (its last spawning refuge) and across southern China (its historical geographic range) over recent five decades. We gathered sporadic timeseries data about the (i) growth and abundance indicators, (ii) occurrences and distribution range, (iii) anthropogenic drivers for population declines. We then used timeseries models to reconstruct the process of population change and its potential drivers. We quantitatively compared the range of historical and current distributions for this species. Our results demonstrated that (i) its population showed a prominent decline in body size and geographic range across China, (ii) its abundance was generally stable and low in the Pearl River Estuary and habitat loss and environmental degradation may prevent its recovery despite of the significant decline in fishing pressure in recent decades. These findings highlight that population recovery actions including habitat restoration and protections are urgently needed for this species. We show that local ecological knowledge is valuable in reconstructing population dynamics of data-poor iconic fish and in better understanding both their geographic range and anthropogenic threats.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107659"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697893","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
Inter-port relationships management: A bibliometric analysis and a systematic review of influencing factors of port co-opetition patterns
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-25 DOI: 10.1016/j.ocecoaman.2025.107656
Xuehao Feng , Yao Chen , Hongwen Pan , Yiying Chao , Kebiao Yuan , Zhongyun Yue
{"title":"Inter-port relationships management: A bibliometric analysis and a systematic review of influencing factors of port co-opetition patterns","authors":"Xuehao Feng ,&nbsp;Yao Chen ,&nbsp;Hongwen Pan ,&nbsp;Yiying Chao ,&nbsp;Kebiao Yuan ,&nbsp;Zhongyun Yue","doi":"10.1016/j.ocecoaman.2025.107656","DOIUrl":"10.1016/j.ocecoaman.2025.107656","url":null,"abstract":"<div><div>Port relationship management has consistently garnered scholarly attention, while existing research has not provided a systematic discussion of the influencing factors of port co-opetition patterns (PIFs). As competition intensifies, the uncertainty and volatility of port co-opetition patterns present challenges to the sustainable development of ports. This study conducts a bibliometric analysis of academic literature on port co-opetition management published between 2000 and 2024. Drawing on the 187 selected articles, this study conducts a comprehensive analysis of the PIFs based on published embedded scenarios that reflect the changes in port co-opetition patterns. To this effect, 14 papers are studied in detail, with a focus on scenarios, methods, evidence sources, and PIFs. The primary thematic clusters within the PIFs are identified, and an in-depth analysis is provided on the interrelations between policy, organizational, environmental, and technological factor clusters and the PIFs within the context of port embedding scenarios. A discussion is made concerning the challenges and future research directions in this area, particularly emphasizing the impact of non-technical rational factors on port co-opetition, as well as the discrepancies observed across the results of different case studies. This study may shed lights on promoting management practices and governance strategies on port co-opetition relationships.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107656"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697101","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
Subsidence critical factor in local sea level rise assessments
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-24 DOI: 10.1016/j.ocecoaman.2025.107646
Alberto Boretti
{"title":"Subsidence critical factor in local sea level rise assessments","authors":"Alberto Boretti","doi":"10.1016/j.ocecoaman.2025.107646","DOIUrl":"10.1016/j.ocecoaman.2025.107646","url":null,"abstract":"<div><div>This letter examines the interplay between anthropogenic subsidence and eustatic effects in shaping relative sea levels, focusing on New York City (NYC) as a primary case study and extending the analysis to Sydney (Australia), Alexandria (Egypt) and other coastal cities. We emphasize the necessity for comprehensive analyses that integrate both local and global factors to accurately understand and predict sea level trends. Highlighting the often-overlooked issue of subsidence, particularly in urbanized areas like Manhattan, the letter argues that neglecting this factor alongside eustatic changes can lead to inaccurate conclusions and inadequate coastal management strategies. The study's findings, supported by updated data and a broad literature review, are crucial for ocean and coastal management, informing effective mitigation and adaptation strategies, urban planning, risk assessment, policy formulation, and economic forecasting. By integrating both subsidence and eustatic effects, the letter advocates for a holistic approach to managing and addressing the multifaceted challenges of sea level rise, ultimately enhancing scientific and public awareness of the critical local and global factors at play.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107646"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679118","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
Spatial-temporal characteristics of ship carbon emission based on AIS data
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-24 DOI: 10.1016/j.ocecoaman.2025.107629
Zhengchun Sun , Sudong Xu , Jun Jiang
{"title":"Spatial-temporal characteristics of ship carbon emission based on AIS data","authors":"Zhengchun Sun ,&nbsp;Sudong Xu ,&nbsp;Jun Jiang","doi":"10.1016/j.ocecoaman.2025.107629","DOIUrl":"10.1016/j.ocecoaman.2025.107629","url":null,"abstract":"<div><div>As the global shipping industry continues to expand, the environmental implications of ship carbon emissions are becoming increasingly apparent. Despite extensive analyses of carbon emissions from marine and coastal transportation vessels in existing research, studies on the precise measurement of carbon emissions from vessels in inland waterways and the spatiotemporal characteristics of carbon emission distribution remain limited. Addressing these emissions is essential, especially given the critical role that shipping plays in global trade. To accurately quantify emissions, the Ship Automatic Identification System (AIS) serves as a powerful tool, offering precise tracking of ships' routes, operational statuses, and activities in real time. This study leverages AIS data collected from the Suzhou segment of the Beijing-Hangzhou Grand Canal, spanning from 2018 to 2023, to perform a meticulous analysis of carbon emissions over this six-year period. By applying a bottom-up Systematic Transportation and Environmental Assessment Model (STEAM), this study provides a robust and detailed estimation of emissions, allowing for a comprehensive examination of the environmental impact. Based on the calculation of Moran's I index, the analysis delves into multiple dimensions of ship carbon emissions, embracing the lenses of ship types, operational statuses, region features, and spatial-temporal autocorrelation. The results indicate that over the six-year study period, the total carbon emissions from vessels are estimated to be approximately 146.86 metric tons, with cargo ships accounting for 64.1 % of the total emissions and vessels operating in cruise mode representing 67 %. Spatially, the findings reveal that areas with higher carbon emissions are predominantly concentrated near port regions serving as critical nodes within the shipping network. These spatial patterns observed point to the localized nature of these emissions, providing essential insights for regional policymakers and environmental regulators.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107629"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679115","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
Is sparse local ecological knowledge accurate enough for policy? A seagrass mapping case study from five Greek islands in the Eastern Aegean Sea
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-24 DOI: 10.1016/j.ocecoaman.2025.107627
Konstantis Alexopoulos , Tim J. Grandjean , Anastasia Miliou , Theodoros Tsimpidis , Abigail McQuatters-Gollop
{"title":"Is sparse local ecological knowledge accurate enough for policy? A seagrass mapping case study from five Greek islands in the Eastern Aegean Sea","authors":"Konstantis Alexopoulos ,&nbsp;Tim J. Grandjean ,&nbsp;Anastasia Miliou ,&nbsp;Theodoros Tsimpidis ,&nbsp;Abigail McQuatters-Gollop","doi":"10.1016/j.ocecoaman.2025.107627","DOIUrl":"10.1016/j.ocecoaman.2025.107627","url":null,"abstract":"<div><div>The low cost, high applicability and community-based nature of Local Ecological Knowledge (LEK) data for mapping marine benthic habitats has become increasingly popular in recent years. Nonetheless, due to persisting technocratic distrust of LEK often stemming from the unquantifiable nature of bias, the embedding of empirical data at policy levels often lags. Currently, protocols rely on high participation from stakeholders, however, such quotas are often unfeasible, with common limiting factors being the low numbers of knowledgeable individuals in remote parts of the world, and the lack of community trust in the conservation mechanism. In this study, we test whether data from a limited number of interviews with selected artisanal fishers can provide accurate and policy-valuable information as an alternative to high-participation data collection. Our work focuses on the case of <em>Posidonia oceanica</em> seagrass beds around five Greek islands in the eastern Aegean Sea. In comparison with remotely sensed seagrass distribution maps, our results show that the quality of selected LEK data can be exceptionally high (on average 78% accuracy; maximum 92% accuracy), arguing the point that limited-participation LEK should not be discarded as invalid at policy levels. Furthermore, the way LEK is recorded, as well as the number of years of fishing experience of the participants, were found to significantly affect the quality of data being delivered. Lastly, we show that LEK outperformed the governmentally-issued seagrass map, thus providing further evidence of fishers’ LEK ability to deliver policy-relevant data regarding the distribution of their local marine habitats.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"267 ","pages":"Article 107627"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725262","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
Managing marine resources sustainably – But how do we know when marine management has been successful?
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-22 DOI: 10.1016/j.ocecoaman.2025.107623
Michael Elliott , Ángel Borja , Roland Cormier
{"title":"Managing marine resources sustainably – But how do we know when marine management has been successful?","authors":"Michael Elliott ,&nbsp;Ángel Borja ,&nbsp;Roland Cormier","doi":"10.1016/j.ocecoaman.2025.107623","DOIUrl":"10.1016/j.ocecoaman.2025.107623","url":null,"abstract":"<div><div>Current marine environmental management is the ‘sustainable management of people and their marine activities’ to be achieved through ecosystem manipulation and activity control. Marine management <em>per se</em> needs to define who requires and can achieve a successfully managed environment, the tools and indicators for that management, the indications of success and the means of knowing that the environment has been successfully managed. Indicators of success require policies and plans, environmental targets and regulatory standards and guidelines, i.e. output controls such as those stipulated by legislation. It should aim for sustainable outcomes based on government policy, to satisfy public demands and using the advice and assessments by natural and social scientists. The inputs, outputs and outcomes should include scientific research and advice, reporting to the government and the public as well as compliance in programme performance evaluations. In this, there are three interested bodies: (i) those requiring a successfully managed environment such as the public; (ii) those responsible to carry-out and monitor the programmes and regulate humans and their activities as mandated by government such as administrators and regulators, and (iii) those implementing the management measures. Here, examples from Europe and North America but with relevance to all maritime states are used to emphasise that management success encompasses a well-defined planning cycle with a vision achieved <em>as the result of</em> objectives being met <em>leading to</em> actions carried out <em>leading to</em> outputs produced <em>leading to</em> outcomes achieved.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107623"},"PeriodicalIF":4.8,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679117","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
First assessment of mercury bioaccumulation in jumbo squid (Dosidicus gigas) off Peru: The impact of sized group, sex, and feeding ecology
IF 4.8 2区 环境科学与生态学
Ocean & Coastal Management Pub Date : 2025-03-22 DOI: 10.1016/j.ocecoaman.2025.107641
Zhenfang Zhao , Guanyu Hu , Bilin Liu , Long Chen , Ziyue Chen , Xinjun Chen
{"title":"First assessment of mercury bioaccumulation in jumbo squid (Dosidicus gigas) off Peru: The impact of sized group, sex, and feeding ecology","authors":"Zhenfang Zhao ,&nbsp;Guanyu Hu ,&nbsp;Bilin Liu ,&nbsp;Long Chen ,&nbsp;Ziyue Chen ,&nbsp;Xinjun Chen","doi":"10.1016/j.ocecoaman.2025.107641","DOIUrl":"10.1016/j.ocecoaman.2025.107641","url":null,"abstract":"<div><div>Jumbo squid, <em>Dosidicus gigas</em>, play a crucial role in marine ecosystems and are an important commercial species in the East Pacific. This study investigated the bioaccumulation characteristics of total mercury (THg) in jumbo squid (<em>Dosidicus gigas</em>) from the eastern Pacific Ocean, analyzing the influence of factors such as mantle length, sex, and feeding ecology. We analyzed the muscle tissue of 108 squid samples (small, medium, and large-sized groups) collected from June to December 2020. THg concentrations increased with mantle length, but all values remained within Chinese national edible standards. Females in medium and large-sized groups had significantly higher THg concentrations than males. Stable isotope (δ<sup>13</sup>C and δ<sup>15</sup>N) and fatty acid analyses revealed the feeding habits and trophic levels of different groups and their correlation with THg levels. Principal component analysis (PCA) identified body weight, δ<sup>13</sup>C, Eicosapentaenoic Acid, and THg as significant contributors to the first principal component, while Arachidonic Acid contributed to the second. Correlations between THg, δ<sup>13</sup>C, δ<sup>15</sup>N, and the Docosahexaenoic Acid/Eicosatetraenoic Acid ratio varied among groups. These findings highlight the importance of pollutant bioaccumulation research in cephalopods, providing insights into the biogeochemical cycling of pollutants in marine ecosystems. This study not only provides data on mercury levels in the muscles of giant squid, which can help evaluate the health risks of human consumption, but also suggest that future research should focus on the integration of pollutant research with biogeochemical techniques.</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"265 ","pages":"Article 107641"},"PeriodicalIF":4.8,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679116","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
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