Ocean & Coastal Management最新文献_第3页

The interaction between climate change and marine fisheries: Review, challenges, and gaps 气候变化与海洋渔业之间的相互作用：回顾、挑战和差距

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-16 DOI: 10.1016/j.ocecoaman.2024.107479

Yidan Xu , Thomas Krafft , Pim Martens

Climate change presents profound challenges to marine ecosystems and fisheries, necessitating effective management and adaptive strategies. Simultaneously, marine fisheries exacerbate climate change by emitting greenhouse gases through fuel combustion and electricity consumption. This article reviews 142 studies on the bidirectional interactions between climate change and marine fisheries (ICCMF), utilizing bibliometric methods including co-occurrence network analysis, cluster analysis, and conceptual framework analysis to identify research trends, challenges, and gaps. The bibliometric analysis reveals an explosive growth in publications and patents related to ICCMF since 2020. The key themes in ICCMF research encompass: (a) the impacts of climate change on marine fisheries, (b) the contribution of marine fisheries to climate change, (c) stakeholder perceptions and responses to climate change, and (d) adaptive management strategies for climate-resilient fisheries. Notably, recent studies have increasingly focused on carbon emissions and carbon sinks in marine fishery industries, emphasizing the need for further research into carbon reduction practices to mitigate climate change. This review identifies several challenges, including geographical disparities, knowledge inequality, "parachute science" and "helicopter research," issues with data quality and management, and inadequate capacity to adapt to climate change. Key research gaps include the limited representation of perspectives from the Global South, the absence of sustained partnerships, imbalances in research collaboration, restricted data accessibility and reliability, and an inadequate understanding of fisheries' carbon emissions. This review provides valuable insights for researchers, policymakers, and stakeholders, highlighting the need for strategic management approaches to mitigate adverse impacts and promote marine ecosystem sustainability.

气候变化给海洋生态系统和渔业带来了深远的挑战，需要有效的管理和适应战略。同时，海洋渔业通过燃料燃烧和电力消耗排放温室气体，加剧了气候变化。本文利用文献计量学方法，包括共现网络分析、聚类分析和概念框架分析，回顾了142项关于气候变化与海洋渔业（ICCMF）双向互动关系的研究，以确定研究趋势、挑战和差距。文献计量分析显示，自 2020 年以来，与 ICCMF 相关的出版物和专利呈爆炸式增长。ICCMF研究的关键主题包括：(a) 气候变化对海洋渔业的影响，(b) 海洋渔业对气候变化的贡献，(c) 利益相关者对气候变化的看法和反应，以及(d) 气候适应性渔业的适应性管理战略。值得注意的是，最近的研究越来越多地关注海洋渔业的碳排放和碳汇，强调需要进一步研究减少碳排放的做法，以减缓气候变化。本综述指出了若干挑战，包括地理差异、知识不平等、"降落伞科学 "和 "直升机研究"、数据质量和管理问题以及适应气候变化的能力不足。主要的研究差距包括来自全球南部的观点代表性有限、缺乏持续的合作伙伴关系、研究合作不平衡、数据可获取性和可靠性受限以及对渔业碳排放的认识不足。本综述为研究人员、政策制定者和利益相关者提供了有价值的见解，强调了采取战略管理方法减轻不利影响和促进海洋生态系统可持续性的必要性。

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引用次数: 0

Participatory mapping of uses and ecosystem services as a useful tool for the identification of conflicts in Marine Protected Areas: The case of the Cíes Islands archipelago (NW Spain) 使用和生态系统服务的参与式绘图是确定海洋保护区冲突的有用工具：西耶斯群岛（西班牙西北部）案例

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-15 DOI: 10.1016/j.ocecoaman.2024.107474

J. Molina-Urruela , E. Fernández , A.J. Castro , M. Expósito-Granados , A. Ovejero-Campos , S. Villasante , G. Méndez-Martínez

Marine Protected Areas (MPAs) aim to preserve marine natural capital and reduce marine biodiversity loss. However, due to the diversity of objectives in marine planning, their management involves the resolution of conflicts on current uses and ecosystem services. Participatory mapping is a useful technique in MPA's management that uses local knowledge to map ecosystem services and associated conflicts and threats. The goal of this study was to analyse the stakeholders' perception on uses and ecosystem services in the Cíes Islands archipelago, located in the National Park of the Galician Atlantic Islands. Results from semi-structured questionnaires conducted with different stakeholders, indicated that landscape values and marine research were the most valued ecosystem services, although slight differences were found between fishers and other sectors. The activities exerting the highest pressure on the protected area were fishing and tourism. Conflicts were mainly associated with the co-existence of activities within the MPA, potentially threatening conservation goals. Participatory mapping helped to identify MPA management actions to achieve conservation objectives while maintaining current uses and activities in the future.

海洋保护区 (MPA) 旨在保护海洋自然资本，减少海洋生物多样性的损失。然而，由于海洋规划目标的多样性，其管理涉及解决当前使用和生态系统服务方面的冲突。参与式绘图是海洋保护区管理中的一项有用技术，它利用当地知识绘制生态系统服务及相关冲突和威胁的地图。本研究的目标是分析利益相关者对位于加利西亚大西洋群岛国家公园内的 Cíes 群岛的使用和生态系统服务的看法。对不同利益相关者进行的半结构式问卷调查结果表明，景观价值和海洋研究是最受重视的生态系统服务，但渔民和其他部门之间略有不同。对保护区造成最大压力的活动是渔业和旅游业。冲突主要与海洋保护区内活动的共存有关，这可能会威胁到保护目标。参与式绘图有助于确定海洋保护区的管理行动，以实现保护目标，同时保持当前的用途和未来的活动。

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引用次数: 0

Pricing blue carbon to promote the protection and restoration of the marine environment: A real option model 为蓝碳定价，促进海洋环境的保护和恢复：实物期权模型

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-13 DOI: 10.1016/j.ocecoaman.2024.107475

Shan-Shan Jiang , Jing-Mei Li

Pricing blue carbon will allow the monetization of the implicit carbon sequestration value of socioeconomic activities in marine ecosystems. This will empower those engaged in marine environment protection and restoration to reap economic benefits while imposing costs on those who harm the marine environment or carbon-emitting enterprises. This can significantly increase the enthusiasm of local governments, enterprises, and others for protecting and restoring the marine environment. However, owing to the characteristics of public goods and the externalities of blue carbon, it is difficult to price them through the supply and demand relationship of the traditional market. This paper focuses on how to price blue carbon under government policies and market uncertainties to encourage investors to engage in blue carbon projects involving the ecological protection and restoration of coastal wetlands. First, a universal blue carbon pricing model is established via the real option approach. The mangrove blue carbon project in Zhanjiang, Guangdong, was used as a case study to evaluate the price of mangrove blue carbon. This research provides technical support for the formation of blue carbon prices, and this method can be used not only to promote the protection and restoration of the marine environment but also to optimize the supply of blue carbon, fully leveraging its role in addressing climate change.

蓝碳定价将使海洋生态系统中社会经济活动的隐性碳固存价值货币化。这将使从事海洋环境保护和恢复的人获得经济收益，同时让那些破坏海洋环境或碳排放企业付出代价。这可以大大提高地方政府、企业等保护和恢复海洋环境的积极性。然而，由于蓝碳具有公共产品和外部性的特点，很难通过传统市场的供求关系进行定价。本文主要探讨如何在政府政策和市场不确定的情况下对蓝碳进行定价，以鼓励投资者参与涉及沿海湿地生态保护和恢复的蓝碳项目。首先，通过实物期权法建立通用蓝碳定价模型。以广东湛江红树林蓝碳项目为例，对红树林蓝碳价格进行了评估。该研究为蓝碳价格的形成提供了技术支持，该方法不仅可用于促进海洋环境的保护和恢复，还可用于优化蓝碳供给，充分发挥蓝碳在应对气候变化中的作用。

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引用次数: 0

Assessing the health and scenic quality of sandy beaches: A large-scale evaluation using expert judgement 评估沙滩的健康和景观质量：利用专家判断进行大规模评估

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-12 DOI: 10.1016/j.ocecoaman.2024.107468

Omar Defeo , Juan A. Licandro , Julieta Olalde , Sofía Bausero-Jorcin , Eleonora Celentano , Anita de Álava , Gabriela Jorge-Romero , Diego Lercari , Nelson Rangel-Buitrago

Sandy beaches, essential components of coastal landscapes, are increasingly threatened by urbanization, resource extraction, and climate change, jeopardizing their ecological integrity and scenic value. This study assesses the health and scenic quality of 100 sandy beaches along the Uruguayan coast, influenced by the Ro de la Plata estuary, using the Coastal Scenery Evaluation System (CSES) and a dune integrity assessment as indicators of ecosystem health. The analysis identified urbanization as the primary driver of beach degradation, with the most urbanized beaches, particularly those in the inner and outer estuary macrozones, exhibiting the lowest scenic and ecological values. In contrast, beaches with greater dune integrity and lower human impact, especially those in the oceanic macrozone, demonstrated better scenic quality and ecological health. This study emphasizes the role of natural features, such as dunes and natural vegetation, in sustaining beach health, while stressing the urgent need for sustainable management practices to safeguard the ecological and cultural value of these fragile ecosystems. The findings offer critical insights for coastal governance, management, and conservation, advocating for the protection of less developed beaches and the restoration of degraded beaches through scientifically robust management plans. This approach also emphasizes the importance of inclusive decision-making, fostering active societal engagement to enhance long-term resilience and sustainability in areas threatened by coastal grabbing.

沙滩是海岸景观的重要组成部分，但正日益受到城市化、资源开采和气候变化的威胁，危及其生态完整性和景观价值。本研究采用海岸景观评估系统（CSES）和沙丘完整性评估作为生态系统健康指标，评估了受拉普拉塔河口影响的乌拉圭沿岸 100 个沙滩的健康状况和景观质量。分析结果表明，城市化是海滩退化的主要驱动因素，城市化程度最高的海滩，尤其是河口内、外宏观区域的海滩，风景和生态价值最低。相比之下，沙丘完整性较高、人类影响较小的海滩，尤其是位于海洋大区的海滩，风景质量和生态健康状况较好。这项研究强调了沙丘和天然植被等自然特征在维持海滩健康方面的作用，同时强调迫切需要采取可持续的管理措施来保护这些脆弱生态系统的生态和文化价值。研究结果为沿海治理、管理和保护提供了重要启示，倡导保护欠发达海滩，并通过科学有力的管理计划恢复退化的海滩。这种方法还强调了包容性决策的重要性，促进社会积极参与，以增强受海岸侵占威胁地区的长期恢复能力和可持续性。

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引用次数: 0

No-take zone in check: An ecological assessment of the management role in reef fish conservation in a Brazilian Hope Spot region 禁渔区受到控制：对巴西希望点地区珊瑚礁鱼类保护管理作用的生态评估

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-12 DOI: 10.1016/j.ocecoaman.2024.107469

Augusto A. Machado , Aline A. Aguiar , Maria L. Abieri , Bruno P. Masi , Mauricio Hostim-Silva , Áthila A. Bertoncini

Marine Protected Areas (MPAs) have been considered one of the most effective conservation management strategies worldwide. Despite its relevance, anthropogenic disturbances continue to cast doubt on its importance. Here we explored the effects of the protection of no-take zones on the fish community in a recent Brazilian Hope Spot. Threatened and fishery-target species distributions and ecological descriptors were assessed by underwater visual censuses and submersible rotating videos from 2020 to 2022. There were significant differences between areas (Protected, Rasa is., and Far) where fish median richness was higher in both sampling techniques and higher median densities through submersible rotating videos within MPA limits compared to non-protected areas. Besides that, Cagarras Islands Natural Monument sheltered about 84.7% (n = 17) of the total threatened species recorded in the study area, according to the International Union for Conservation of Nature classification. Our results integrated with stakeholders' knowledge may provide a powerful message to decision-makers about the importance of protected areas for marine conservation. In this context, it is fundamental to consider Hope Spots as an opportunity to change unsustainable human practices and enhance the conservation of the marine life worldwide.

海洋保护区（MPAs）一直被认为是全球最有效的保护管理策略之一。尽管海洋保护区具有重要意义，但人为干扰仍使人们对其重要性产生怀疑。在这里，我们探讨了禁渔区的保护对巴西最近一个希望点的鱼类群落的影响。从 2020 年到 2022 年，我们通过水下目测普查和潜水器旋转视频评估了濒危物种和渔业目标物种的分布以及生态描述指标。不同区域（保护区、Rasa is.和 Far）之间存在明显差异，与非保护区相比，在海洋保护区范围内，两种取样技术的鱼类丰富度中位数更高，潜水器旋转视频的密度中位数也更高。此外，根据国际自然保护联盟的分类，卡加拉斯群岛自然保护区内记录的濒危物种约占研究区总数的 84.7%（n = 17）。我们的研究结果与利益相关者的知识相结合，可以向决策者发出强有力的信息，说明保护区对海洋保护的重要性。在这种情况下，将希望之点视为改变人类不可持续的做法和加强全球海洋生物保护的一个契机是至关重要的。

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引用次数: 0

The effect of CHINA RAILWAY Express on alleviating the Red Sea Waterway Crisis: A GTAP model-based study 中国铁路快运对缓解红海水道危机的影响：基于 GTAP 模型的研究

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-11 DOI: 10.1016/j.ocecoaman.2024.107472

Yiting Wang, Ji Guo, Xianhua Wu

In November 2023, the Red Sea Waterway Crisis broke out, which caused the goods originally shipped to Europe via the Red Sea-Suez Canal Route to be transported around the Cape of Good Hope in Africa, thus increasing the shipping cost and shipping time. Firstly, this paper uses the Supply Chain Network Model and the Optimization Model to theoretically analyze the impact of this incident. Secondly, the Global Trade Analysis Project (GTAP) Model is employed to analyze the impact of the crisis on China. At the same time, it also explains whether the impact of the incident can be alleviated by using CHINA RAILWAY Express (CR Express). Finally, this paper compares the upward pressure changes of domestic commodity prices in China, Germany, France, Netherlands and Italy before and after the adoption of CR Express. The results of the study are as follows. (1) The outbreak of the Red Sea Waterway Crisis has a great negative impact on China's macro economy. When China switches to the use of CR Express, the impact on China's GDP and terms of trade is reduced. (2) The outbreak of the Red Sea Waterway Crisis has a greater impact on China's import trade than on its export trade. (3) The outbreak of the Red Sea Waterway Crisis has a great negative impact on China's textile and clothing industry and electronic equipment industry. (4) CR Express can ease the upward pressure of domestic commodity prices. Taken together, the above results can provide reference for China and other countries to cope with similar impact events.

2023 年 11 月，红海水道危机爆发，导致原本通过红海-苏伊士运河航线运往欧洲的货物不得不绕道非洲好望角运输，从而增加了运输成本和运输时间。首先，本文利用供应链网络模型和优化模型对这一事件的影响进行了理论分析。其次，运用全球贸易分析项目（GTAP）模型分析危机对中国的影响。同时，本文还解释了是否可以通过使用中国铁路快运（CR Express）来缓解此次事件的影响。最后，本文比较了中国、德国、法国、荷兰和意大利在采用中铁快运前后国内商品价格的上涨压力变化。研究结果如下。(1）红海水道危机的爆发对中国宏观经济产生了巨大的负面影响。当中国改用 CR Express 后，对中国 GDP 和贸易条件的影响减小。(2）红海水道危机的爆发对中国进口贸易的影响大于对出口贸易的影响。(3) 红海水道危机的爆发对中国纺织服装业和电子设备业的负面影响较大。(4）华润快递可以缓解国内大宗商品价格的上涨压力。综合以上结果，可以为中国和其他国家应对类似的冲击事件提供参考。

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引用次数: 0

Longline hook selectivity for whiting (Merlangius merlangus euxinus) with a perspective on small-scale fisheries management in the Black Sea, Türkiye 从土耳其黑海小型渔业管理的角度看延绳钓鳕鱼（Merlangius merlangus euxinus）的鱼钩选择性

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-11 DOI: 10.1016/j.ocecoaman.2024.107467

Fatma Çebin , Tuncay Yeşilçiçek , Ferhat Kalayci

This study investigated the selectivity parameters of bottom longlines for the Whiting (Merlangius merlangus euxinus) in the small-scale fisheries of the Southeastern Black Sea. Experimental fishing operations were conducted using longlines with hook of 11, 12, 13, and 14mm gaps. A total of 552 fish specimens from four species were captured, with Whiting, the target species, accounting for 90.94% (502 specimens) of the total catch by numbers. The sizes of the Whiting ranged from 10.6 to 20.0 cm Total Length (TL), with a mean size of 15.79 ± 0.087 cm TL. The longline selectivity parameters and curves were fitted using the SELECT method, with the bi-modal model offering the best-fit, based on the lowest deviance value. The modal sizes of specimens caught using the hook of 11, 12, 13, and 14-mm gaps were 12.40, 13.53, 14.66, and 15.78 cm TL, respectively. The modal sizes and spread values increased proportionally with hook size. All the individuals caught by the 14-mm gap hooks exceeded the minimum landing size (MLS) of 13 cm. However, the proportions of individuals below the MLS for the 11, 12, and 13-mm gap hooks were 32.09%, 6.98%, and 0.68%, respectively. Based on the MLS, hooks with gaps larger than 11 mm were found to be highly selective and are recommended for sustainability of the fisheries while ensuring the conservation of immature individuals in the Whiting stocks of the Black Sea. These findings contribute to the much-needed data and information for the design of sound management plans for the small-scale fisheries in the region.

本研究调查了黑海东南部小型渔业中底层延绳钓鳕鱼（Merlangius merlangus euxinus）的选择性参数。试验性捕捞作业使用了钩间隙为 11、12、13 和 14 毫米的延绳。共捕获了四种鱼类的 552 个标本，其中目标鱼种 Whiting 的数量占总捕获量的 90.94%（502 个标本）。鳕鱼的总长度（TL）从 10.6 厘米到 20.0 厘米不等，平均总长度（TL）为 15.79 ± 0.087 厘米。使用 SELECT 方法对延绳钓选择性参数和曲线进行了拟合，根据最低偏差值，双模态模型的拟合效果最好。使用 11、12、13 和 14 毫米间隙的鱼钩捕获的标本的模态尺寸分别为 12.40、13.53、14.66 和 15.78 厘米（TL）。随着鱼钩尺寸的增加，模态尺寸和散布值也成比例增加。所有被 14 毫米间隙鱼钩捕获的个体都超过了 13 厘米的最小上岸尺寸（MLS）。然而，11、12 和 13 毫米间隙钩钓到的个体低于最小上岸尺寸的比例分别为 32.09%、6.98% 和 0.68%。根据最小可捕量，发现间隙大于 11 毫米的鱼钩具有高度选择性，建议在确保渔业可持续发展的同时，保护黑海鳕鱼种群中的未成熟个体。这些发现为该地区小型渔业设计合理的管理计划提供了急需的数据和信息。

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引用次数: 0

Mapping the complex web of policies for seaweed industry development in Indonesia: What is the role of a national roadmap? 绘制印度尼西亚海藻产业发展政策的复杂网络：国家路线图的作用是什么？

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-10 DOI: 10.1016/j.ocecoaman.2024.107464

Risti Permani , Yanti N. Muflikh , Fikri Sjahruddin

Governments across the globe have used a top-down approach through the launch of national roadmaps toward promoting sectoral development in the aquaculture sector. Understanding the policy complexity is critical for ensuring effective governance and creating a conducive investment climate. Learning from Indonesia's first-ever national seaweed roadmap outlined in Presidential Regulation 33–2019 and other policies, this study deploys a multi-step approach combining a policy review, semi-structured government and industry interviews, and a focus group discussion to review complex regulatory levels and policy areas influencing the seaweed industry. Specifically, it identifies, maps, and synthesises the country's multi-layers of policies from national to regional levels, across diverse critical policy areas such as coastal management, aquaculture and fisheries; trade, investment, and industry; and food and consumers through compiling a total of 67 policy documents. The study highlights the significant role of the country's national seaweed roadmap in reviving stakeholders' interest and shifting policy direction towards more targeted seaweed-specific policies. Challenges such as the decentralisation process, marine zoning, value chain, market, and investment dynamics, and the need for policy harmonisation exist. Nevertheless, there is strong support for continuing a national approach coupled with increased stakeholder engagement, improved monitoring and evaluation, and improved policy coordination. Moreover, a coherent policy approach within the broader scope of coastal management, aquaculture and fisheries and critical areas such as trade, investment and industry, youth and gender inclusiveness, as well as alignment with Indonesia's broader blue economy framework should be explored toward ensuring a sustainable and inclusive seaweed industry growth.

全球各国政府采用自上而下的方法，通过推出国家路线图来促进水产养殖业的部门发展。了解政策的复杂性对于确保有效治理和创造有利的投资环境至关重要。本研究借鉴印尼有史以来首个国家海藻路线图（第33-2019号总统条例）和其他政策，采用多步骤方法，结合政策审查、半结构化政府和行业访谈以及焦点小组讨论，审查影响海藻产业的复杂监管层面和政策领域。具体而言，该研究通过汇编总共 67 份政策文件，确定、绘制和综合了该国从国家到地区层面的多层次政策，涉及沿海管理、水产养殖和渔业；贸易、投资和工业；以及食品和消费者等多个关键政策领域。研究强调了该国的国家海藻路线图在唤起利益相关者的兴趣以及将政策方向转向更有针对性的海藻专项政策方面所发挥的重要作用。目前存在的挑战包括权力下放进程、海洋区划、价值链、市场和投资动态以及政策协调的必要性。不过，人们强烈支持继续采用国家方法，同时加强利益相关者的参与，改进监测和评估，并加强政策协调。此外，还应在沿海管理、水产养殖和渔业以及贸易、投资和工业、青年和性别包容性等关键领域的更大范围内探索协调一致的政策方法，并与印尼更广泛的蓝色经济框架保持一致，以确保海藻产业的可持续和包容性增长。

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引用次数: 0

A systematic review of fish trade and its impact on economic progress: Barriers, opportunities, and outlook for developing countries 对鱼类贸易及其对经济进步的影响进行系统审查：发展中国家的障碍、机遇和前景

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-10 DOI: 10.1016/j.ocecoaman.2024.107471

Ehsan Elahi , Yuge Li , Ali Md Emam , Min Zhu , Indubala Krishnan

This study conducts a comprehensive evaluation of fishery commerce effects, with a particular emphasis on developing nations, through a systematic literature review and desk research from 2012 to 2024. The study provides a detailed assessment of the fish trade landscape in these regions by analyzing existing data, official documents, and empirical research. The research reveals a growing global demand for fish, driven by changing dietary preferences and increased health awareness. However, significant challenges impede the sustainable development of the fisheries sector in developing countries. Despite these obstacles, data visualization demonstrates a remarkable increase in developing countries' participation in the global fish market in terms of value and volume. The study identifies substantial untapped potential for these nations to expand their fisheries industry, thereby fostering broader economic growth. Realizing this potential requires a strong emphasis on sustainability, achievable through modernization, stringent regulations, infrastructure improvements, and biodiversity preservation to secure long-term marine investments. The research underscores the importance of engaging all stakeholders in the fishing industry – including workers, shareholders, management bodies, sustainability specialists, and government officials – in developing transparent national and regional policies. This inclusive approach facilitates open dialogue about objectives and necessary trade-offs. The study concludes that sustainable practices and policies in the fish and fisheries sector must be carefully tailored to the specific limitations and advantages of developing countries to ensure balanced and favorable outcomes in future scenarios.

本研究通过系统的文献综述和案头研究，对2012年至2024年的渔业贸易效应进行了全面评估，重点是发展中国家。研究通过分析现有数据、官方文件和实证研究，对这些地区的水产品贸易状况进行了详细评估。研究显示，在饮食偏好改变和健康意识提高的推动下，全球对水产品的需求不断增长。然而，巨大的挑战阻碍了发展中国家渔业部门的可持续发展。尽管存在这些障碍，但可视化数据显示，发展中国家参与全球水产品市场的价值和数量显著增加。研究发现，这些国家在扩大渔业产业，从而促进更广泛的经济增长方面还有大量潜力尚未开发。要实现这一潜力，就必须高度重视可持续性，通过现代化、严格监管、改善基础设施和保护生物多样性来确保长期海洋投资。研究强调了让渔业的所有利益相关者（包括工人、股东、管理机构、可持续发展专家和政府官员）参与制定透明的国家和地区政策的重要性。这种包容性的方法有利于就目标和必要的权衡进行公开对话。研究得出结论，鱼类和渔业领域的可持续做法和政策必须根据发展中国家的具体限制和优势进行仔细调整，以确保在未来情况下取得平衡和有利的结果。

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引用次数: 0

Ecosystem carbon accumulation of Sonneratia apetala mangroves along an afforestation chronology in Bangladesh 孟加拉国 Sonneratia apetala 红树林生态系统碳积累的植树造林年表

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-09 DOI: 10.1016/j.ocecoaman.2024.107466

Sajib Ahmed , Md Lokman Hossain , Sujit Kumar Roy , Jianfeng Li , Mohammed Abdus Salam

Coastal plantation ecosystems play a vital role in the protection of coastal regions, biodiversity conservation, and the provision of valuable ecosystem services. These ecosystems have been recognized for their capacity to sequester carbon, making them instrumental in mitigating global warming. In this study, we assessed ecosystem carbon (EC) density levels in Sonneratia apetala planted coastal ecosystems in the Char Kukri-Mukri and Montaz mangrove reserves in the south-central Bangladesh. Using 48 representative plots from four stand ages (8–32 years), carbon density changes in trees and soil (0–15 and 15–30 cm) were evaluated. Results showed significant differences in vegetation carbon (VC) density, soil organic carbon (SOC) concentration, SOC density, and EC density among different stand ages, soil depths and mangroves. The increased EC density in Char Kukri Mukri (12.21 t ha⁻¹ yr⁻¹) and in Char Montaj (12.62 t ha⁻¹ yr⁻¹) with advancing stand ages (year-8 to year-32) provides empirical evidence of the effectiveness of afforestation in enhancing EC density in S. apetala planted mangroves. Regardless of stand age, the higher SOC density found in the upper soil layer (51 t ha⁻¹ in year-32 stand) compared to the lower layer (38 t ha⁻¹ in year-32 stand) in both mangroves highlights that the majority of soil carbon is concentrated in the top 15 cm of the forest floor. Within the 0–30 cm soil layer, SOC density demonstrated an increasing trend, with rates of 1.30 t ha⁻¹ yr⁻¹ in Char Montaj, and 1.33 t ha⁻¹ yr⁻¹ in Char Kukri Mukri mangroves between year-8 and year-32 stands. This study provides valuable insights for policymakers, land managers, and conservation practitioners, emphasizing the significance of coastal plantation ecosystems in carbon sequestration and the need for informed management strategies to optimize their climate mitigation potential.

沿海种植园生态系统在保护沿海地区、保护生物多样性和提供宝贵的生态系统服务方面发挥着至关重要的作用。这些生态系统的固碳能力已得到认可，使其在减缓全球变暖方面发挥了重要作用。在这项研究中，我们评估了孟加拉国中南部 Char Kukri-Mukri 和 Montaz 红树林保护区内种植的 Sonneratia apetala 沿海生态系统的生态系统碳密度水平。利用四个林龄（8-32 年）的 48 个代表性地块，对树木和土壤（0-15 厘米和 15-30 厘米）中的碳密度变化进行了评估。结果表明，不同树龄、土壤深度和红树林的植被碳密度、土壤有机碳浓度、土壤有机碳密度和导电率密度存在明显差异。Char Kukri Mukri（12.21 吨/公顷-年-1）和 Char Montaj（12.62 吨/公顷-年-1）的导电率密度随着林龄（第 8 年至第 32 年）的增加而增加，这为植树造林有效提高 S. apetala 种植红树林的导电率密度提供了实证证据。无论林分年龄如何，两种红树林土壤上层的 SOC 密度（第 32 年林分的 51 吨/公顷-1）均高于下层（第 32 年林分的 38 吨/公顷-1），这说明土壤碳大部分集中在林地顶部 15 厘米处。在 0-30 厘米土层中，SOC 密度呈上升趋势，在 Char Montaj 和 Char Kukri Mukri 红树林中，在第 8 年和第 32 年之间，SOC 密度分别为 1.30 吨/公顷-年和 1.33 吨/公顷-年。这项研究为政策制定者、土地管理者和保护工作者提供了宝贵的见解，强调了沿海种植园生态系统在固碳方面的重要性，以及制定明智的管理策略以优化其气候减缓潜力的必要性。

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