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Rethinking user rights of profitable marine invasions: Lessons from the Norwegian Barents Snow Crab fishery 重新思考有利可图的海洋入侵的使用者权利:挪威巴伦支海雪蟹渔业的经验教训
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-19 DOI: 10.1016/j.ocecoaman.2024.107430
Melina Kourantidou , Brooks A. Kaiser
Profitable marine invasions can occur when a newly arrived invasive species not only negatively changes ecosystem characteristics but is also exploited as a valuable market commodity. Such species pit existing ecosystem production values against potential value paths as their presence instigates management decisions that may vary from favoring a conservative, status quo approach on one end to a more risk-loving, adaptive approach on the other. Despite commitments to environmental treaties for limiting spread, local interests may purposefully support growth of invasions for their benefit. Potential value paths will depend not only on the ecological changes in the natural capital supporting the profitable resource extraction but also the user rights developed to address the changing asset structure and productivity. Current economic thinking suggests that the stronger the user rights in addressing questions of exclusivity, security and duration, the higher the gains to the present value of expected benefits from the rights. We discuss how both scale and uncertainties regarding irreversible ecological value and productivity shifts may require refinement of this theory. We explore the Barents Sea Snow Crab (Chionoecetes opilio) fishery, with particular attention to the Norwegian approach to its management. The uncertain ecological impacts of this invasive species have led to international disputes and significant management challenges. Norway has implemented exclusionary policies by designating the crab as sedentary to limit foreign access, sparking conflicts over the Svalbard Treaty. These unilateral actions have led to fines, court cases, and diplomatic tensions. As the Snow Crab expands toward sensitive Arctic habitats, a broader governance approach is needed. We take a critical look at the exclusivity, security, and durability of property rights associated with the Norwegian Snow Crab fishery, assessing their inherent weaknesses and implications since the onset of the fishery in 2012. As there is a growing interest in developing profitable resource exploitation and fisheries for new, often invading species, the Norwegian Snow Crab fishery provides valuable lessons and guidance for governance and management of such resources, aiming to mitigate risks and foster economically viable and environmentally responsible practices.
当新来的入侵物种不仅对生态系统特征造成负面影响,而且还被当作有价值的市场商品加以利用时,就会出现有利可图的海洋入侵。这些物种将现有的生态系统生产价值与潜在的价值路径对立起来,因为它们的存在会促使管理决策从倾向于保守的、维持现状的方法到更喜欢风险的、适应性更强的方法不等。尽管环境条约承诺限制入侵的扩散,但当地利益集团可能为了自身利益而故意支持入侵的增长。潜在的价值路径不仅取决于支持资源开采盈利的自然资本的生态变化,还取决于为应对不断变化的资产结构和生产力而开发的用户权利。当前的经济思想表明,在解决排他性、安全性和持续时间等问题时,使用者权利越强,权利预期收益的现值收益就越高。我们讨论了生态价值和生产力不可逆转转变的规模和不确定性如何要求完善这一理论。我们探讨了巴伦支海雪蟹(Chionoecetes opilio)渔业,特别关注挪威的管理方法。这种入侵物种不确定的生态影响导致了国际争端和重大的管理挑战。挪威实施排他性政策,将这种蟹定为定居型,以限制外国渔民进入,从而引发了与《斯瓦尔巴条约》的冲突。这些单边行动导致了罚款、法庭诉讼和外交紧张局势。随着雪蟹向敏感的北极栖息地扩展,需要一种更广泛的治理方法。我们对挪威雪蟹渔业相关产权的排他性、安全性和持久性进行了批判性审视,评估了自2012年开始捕捞以来其固有的弱点和影响。随着人们对开发有利可图的资源和捕捞新物种(通常是入侵物种)的兴趣与日俱增,挪威雪蟹渔业为此类资源的治理和管理提供了宝贵的经验和指导,旨在降低风险,促进经济上可行、环境上负责任的做法。
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引用次数: 0
Valuation of landscape intangibles: Influence on the marina management 景观无形资产估值:对码头管理的影响
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-19 DOI: 10.1016/j.ocecoaman.2024.107416
Ricardo Martín , Víctor Yepes
The landscape values reflect the user’s preferences related to the landscape. It represents a genuine key in marina managing processes. However, there is no economic value of how much these intangibles represent within the marina management. This study estimated the monetary value associated with landscape intangibles in marinas by combining the hedonic pricing method (HPM) and the valuation of Marina del Este in the coastal locality of La Herradura in Almuñécar, Granada, Spain. The real estate data price of houses sold during 2023, from real estate data, was used as the dependent variable, and house structural, location, and neighborhood served as independent variables. Results showed that coastal residents considered proximity to the beach and expanded sea views two of the most important factors when buying a house. Other amenities related to landscape intangibles were quietness and exclusivity. Comparing the market with intrinsic value at nearby properties, the marina value can be estimated through a direct comparison approach and, hence, obtaining an estimation of the landscape intangibles' contribution to the marina’s valuation. They can represent a value of €2,386,736.87, representing 7.91% of the marina’s value. Findings can help marina management quantify the value loss of the marina if they are not considered. They also allow landscape policymakers to determine the economic impact of landscape policies. Maintaining the landscape and its values in the marina is an effective way to preserve an attractive environment for users and visitors, and it can be an effective way to make the marina a lively destination that not only offers environmental benefits but also creates economic opportunities.
景观价值反映了用户对景观的偏好。它是码头管理过程中的真正关键。然而,这些无形资产在游艇码头管理中所占的比例并没有经济价值。本研究结合享乐主义定价法(HPM)和西班牙格拉纳达 Almuñécar La Herradura 沿海地区 Marina del Este 的估值,估算了与游艇码头景观无形资产相关的货币价值。以 2023 年期间售出房屋的房地产数据价格为因变量,房屋结构、位置和邻里关系为自变量。结果显示,沿海居民认为,靠近海滩和扩大海景视野是购买房屋时最重要的两个因素。其他与景观无形资产相关的设施包括安静和独特性。通过直接比较附近房产的市场价值和内在价值,可以估算出码头的价值,从而估算出景观无形资产对码头估值的贡献。这些无形资产的价值为 2,386,736.87 欧元,占码头价值的 7.91%。如果不考虑这些无形资产,研究结果可以帮助码头管理部门量化码头的价值损失。这些结果还能让景观政策制定者确定景观政策的经济影响。保持码头的景观及其价值是为用户和游客保留一个有吸引力的环境的有效方法,也是使码头成为一个生机勃勃的目的地的有效方法,不仅能提供环境效益,还能创造经济机会。
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引用次数: 0
The impact of touristic whale-watching on Delphinus Delphis and Tursiops truncatus in the Algarve Coast: Combining acoustic analysis and land observations 旅游观光对阿尔加维海岸德尔菲努斯-德尔菲斯(Delphinus Delphis)和Tursiops truncatus的影响:声学分析与陆地观测相结合
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-18 DOI: 10.1016/j.ocecoaman.2024.107431
M.Júlia Forli , Rui Peres dos Santos , Alfredo Rodrigues , Rita Castilho
Touristic whale watching (WW) is an important socioeconomic activity worldwide. Recently, short and long-term impacts caused by WW have been reported for several cetacean species, including Delphinus delphis and Tursiops truncatus, the two most observed species in Portugal. Most of the operations in mainland Portugal are concentrated on the South Coast (Algarve). However, despite their importance for the region, studies focused on the impact of this activity on the animals are still scarce. We used acoustic behaviour analysis and land-based observations to determine the alterations in the vocalization patterns of these animals caused by WW vessels and the length of exposure to this stressor. We found WW presence significantly altered five out of six acoustic parameters of whistles, whistle rate, and whistle type distribution for D. delphis, whereas T. truncatus exhibited significant changes in three acoustic parameters. Conversely, T. truncatus significantly reduced echolocation click rates, while D. delphis did not show significant changes. We also found that the Central region of this coast is the most affected, with animals exposed to WW vessels for up to 38.9% of daylight hours. Furthermore, 66.7% of the observation time in this area had several vessels that exceeded the limit established by law. These results suggest that our study species are impacted by WW, while D. delphis is more affected during social behaviours, and T. truncatus is more affected during foraging activities. Both behaviours are biologically significant, and their disturbance might, in the long term, lead to adverse effects at the population level by decreasing reproductive success and fitness. A gap in knowledge, inadequate legislation and compliance issues threaten the development of a sustainable WW industry in the Algarve and might endanger local populations, therefore immediate attention is needed.
旅游观鲸(WW)是全球一项重要的社会经济活动。最近有报告称,WW 对几种鲸目动物造成了短期和长期影响,包括在葡萄牙观察到最多的两种鲸目动物 Delphinus delphis 和 Tursiops truncatus。葡萄牙大陆的大部分作业集中在南海岸(阿尔加维)。然而,尽管这些活动对该地区非常重要,但有关其对动物影响的研究仍然很少。我们利用声学行为分析和陆地观察来确定 WW 船对这些动物的发声模式造成的改变以及暴露在这种压力下的时间长短。我们发现,WW的存在明显改变了D. delphis的哨音、哨音频率和哨音类型分布等六项声学参数中的五项,而T. truncatus的三项声学参数发生了明显变化。相反,T. truncatus明显降低了回声定位点击率,而D. delphis则没有明显变化。我们还发现,该海岸的中部地区受到的影响最大,在38.9%的白天时间里,动物暴露在WW船只的影响下。此外,在这一地区,66.7%的观察时间内有多艘船只超过了法律规定的限制。这些结果表明,我们研究的物种都受到了 WW 的影响,其中三角鲂在社交行为中受到的影响更大,而T. truncatus在觅食活动中受到的影响更大。这两种行为都具有重要的生物学意义,从长远来看,它们受到的干扰可能会降低繁殖成功率和健康水平,从而对种群产生不利影响。知识空白、立法不足和合规问题威胁着阿尔加维可持续 WW 产业的发展,并可能危及当地种群,因此需要立即予以关注。
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引用次数: 0
An overview of social-ecological impacts of the El Niño-Southern Oscillation and climate change on Galapagos small-scale fisheries 厄尔尼诺-南方涛动和气候变化对加拉帕戈斯小型渔业的社会生态影响概述
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-17 DOI: 10.1016/j.ocecoaman.2024.107436
Mauricio Castrejón , Jeremy Pittman , Jorge Ramírez-González , Omar Defeo
Small-scale fisheries in the Galapagos Marine Reserve face significant challenges due to climatic anomalies and human-induced changes such as weak governance and overfishing. This overview explores the social-ecological impacts of the El Niño-Southern Oscillation (ENSO) and climate change on Galapagos small-scale fisheries, including the progress and challenges of ENSO and climate change research in this multiple-use marine protected area. The extreme El Niño events of 1982/83, 1997/98, and 2015/16 caused significant ecological shifts and fluctuations in fisheries productivity. While some species have shown increases in biomass, likely linked to sea surface temperature changes and altered ecosystem dynamics, the impacts on others remain uncertain or underexplored. Sailfin grouper (Mycteroperca olfax) and spiny lobster (Panulirus penicillatus and P. gracilis) fisheries have exhibited mixed responses to the El Niño, illustrating the complex nature of ENSO's ecological effects, which are further exacerbated by overfishing. The socio-economic impacts on fishing communities include reduced landings, longer search times, higher fishing costs, and increased livelihood insecurity. Future projections suggest an increasing vulnerability to ENSO and climate change, emphasizing the need for an ecosystem approach to fisheries. Key strategies include enhancing adaptive capacity, promoting sustainable practices, and adopting a social-ecological and transdisciplinary research approach. However, progress in ENSO and climate change research is hampered by weak governance, characterized by institutional barriers that hinder the formulation and enforcement of solid fisheries governance policies. To strengthen the resilience of Galapagos small-scale fisheries, interinstitutional and intersectoral collaboration is essential, supported by international cooperation and strategic investments to bolster local research capabilities.
加拉帕戈斯海洋保护区的小型渔业面临着气候异常以及治理不力和过度捕捞等人为因素造成的巨大挑战。本综述探讨了厄尔尼诺-南方涛动(ENSO)和气候变化对加拉帕戈斯小型渔业的社会生态影响,包括厄尔尼诺-南方涛动和气候变化研究在这个多用途海洋保护区的进展和挑战。1982/83年、1997/98年和2015/16年的极端厄尔尼诺现象造成了显著的生态变化和渔业生产力波动。虽然一些物种的生物量有所增加,这可能与海面温度变化和生态系统动态变化有关,但对其他物种的影响仍不确定或未得到充分探索。帆鳍石斑鱼(Mycteroperca olfax)和刺龙虾(Panulirus penicillatus 和 P. gracilis)渔业对厄尔尼诺现象的反应不一,说明厄尔尼诺/南方涛动对生态的影响十分复杂,过度捕捞进一步加剧了这种影响。对捕鱼社区的社会经济影响包括上岸量减少、搜寻时间延长、捕鱼成本增加以及生计更无保障。对未来的预测表明,厄尔尼诺/南方涛动和气候变化的影响越来越大,这强调了采用生态系统方法来处理渔业问题的必要性。主要战略包括提高适应能力、推广可持续做法以及采用社会生态和跨学科研究方法。然而,治理薄弱阻碍了厄尔尼诺/南方涛动和气候变化研究的进展,其特点是体制障碍阻碍了坚实的渔业治理政策的制定和执行。为了加强加拉帕戈斯小型渔业的恢复能力,必须在国际合作和战略投资的支持下开展机构间和部门间合作,以增强当地的研究能力。
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引用次数: 0
The need to consider recreational vessels in risk assessments of vessel strikes to humpback whales (Megaptera novaeangliae) 在评估船只撞击座头鲸(Megaptera novaeangliae)的风险时考虑娱乐船只的必要性
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-15 DOI: 10.1016/j.ocecoaman.2024.107419
Raphael Mayaud , David Peel , Joshua N. Smith , Craig Wilson , Susan Bengtson Nash
Automatic Identification Systems (AIS) data have been beneficial in understanding spatio-temporal patterns in marine traffic to inform assessments of vessel-strike risk to large whales. However, AIS does not represent all vessel classes, particularly recreational vessels that are not legally required to use AIS. Growing evidence suggests that recreational vessels do collide with large whales, and so risk assessments relying on AIS data can underestimate the threat and misguide conservation efforts. To address this, we conducted surveys of recreational vessel and humpback whale sightings to build density surface models and estimate relative vessel-strike risk by spatial co-occurrence in an urbanized embayment, Moreton Bay, Australia. We demonstrate that 93% of recreational vessels sighted in Moreton Bay did not use AIS and that vessel strike risk varies spatially according to vessel class (recreational vs. commercial). These results highlight the importance of including recreational vessels into vessel strike risk assessments to provide a more holistic view of vessel strike.
自动识别系统(AIS)数据有助于了解海洋交通的时空模式,为评估船只撞击大型鲸鱼的风险提供信息。然而,自动识别系统并不能代表所有船只类别,特别是那些没有法律要求使用自动识别系统的休闲船只。越来越多的证据表明,休闲船只确实会与大型鲸鱼相撞,因此依靠 AIS 数据进行的风险评估可能会低估这种威胁,并误导保护工作。为了解决这个问题,我们对休闲船只和座头鲸的目击情况进行了调查,以建立密度面模型,并根据澳大利亚莫尔顿湾一个城市化海湾的空间共现情况来估计船只撞击鲸鱼的相对风险。我们证明,在莫尔顿湾发现的休闲船只中有 93% 没有使用 AIS,船只撞击风险因船只类别(休闲船只与商业船只)的不同而存在空间差异。这些结果凸显了将休闲船只纳入船只撞击风险评估的重要性,以便提供更全面的船只撞击情况。
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引用次数: 0
Multiple negative impacts of marine plastic pollution on tropical coastal ecosystem services, and human health and well-being 海洋塑料污染对热带沿海生态系统服务以及人类健康和福祉的多重负面影响
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-15 DOI: 10.1016/j.ocecoaman.2024.107423
Carya Maharja , Radisti A. Praptiwi , Sainal Sainal , Prawesti Wulandari , Matthew Ashley , Kayleigh J. Wyles , Joyashree Roy , I Gede Hendrawan , Susan Jobling , Melanie C. Austen
There is limited empirical evidence showing the impacts of marine plastic pollution on ecosystem services or on human health and well-being in Global South countries. We aimed to estimate these impacts in the tropical archipelago of Indonesia, one of the top emitters of marine plastics globally, through an iterative Delphi survey, with an expert panel (n = 42) consisting of equal numbers of Indonesian scientists, policymakers, and practitioners. After two rounds of the survey, the analysis of interquartile ranges indicated that the experts reached a consensus in their predictions. The experts agreed that, over the next 10 years, plastics would be mainly accumulated in the coastal area of Java, the most densely populated island, and mostly in mangrove ecosystems. While all ecosystem services were harmed by plastic pollution, the most vulnerable services were food provisioning, genetic materials, nursery habitat, and recreation supplied by the highly vulnerable coastal ecosystems of, in descending order, mangrove, coral reef, seagrass, and sandy beach. These impacts on ecosystem services influenced different dimensions of human health and well-being and were dependent on the ecosystem types, as indicated in several statistically significant positive correlations (Spearman's rank), including those between the decline of mangrove ecosystem services and reduced household income, and between the decrease of coral reef ecosystem services and both deteriorating mental health and reduced household income. Overall, this study provides the first indication of Indonesian coastal ecosystems and ecosystem services to be prioritized for mitigation and monitoring efforts. The focus on impacts on human health and well-being also incentivizes ongoing efforts by policymakers, industry and commerce, the third sector, and the public in the country to address the contribution to global marine plastic pollution.
在全球南部国家,显示海洋塑料污染对生态系统服务或人类健康和福祉影响的经验证据非常有限。印度尼西亚是全球最大的海洋塑料排放国之一,我们的目标是通过德尔菲迭代调查来估算这些影响,专家小组(n = 42)由人数相当的印度尼西亚科学家、决策者和从业人员组成。经过两轮调查,四分位数区间分析表明,专家们在预测方面达成了共识。专家们一致认为,在未来 10 年内,塑料将主要积聚在人口最稠密的爪哇岛沿海地区,而且主要积聚在红树林生态系统中。虽然所有生态系统服务都会受到塑料污染的损害,但最脆弱的服务是食物供应、遗传物质、育苗栖息地和娱乐,由高度脆弱的沿海生态系统提供,依次为红树林、珊瑚礁、海草和沙滩。这些对生态系统服务的影响影响着人类健康和福祉的不同方面,并取决于生态系统的类型,这体现在几个具有统计意义的正相关关系(斯皮尔曼等级)中,包括红树林生态系统服务减少与家庭收入减少之间的相关关系,以及珊瑚礁生态系统服务减少与心理健康恶化和家庭收入减少之间的相关关系。总之,本研究首次指出了印度尼西亚沿海生态系统和生态系统服务在减缓和监测工作中的优先次序。对人类健康和福祉影响的关注也激励着印尼的政策制定者、工商业、第三部门和公众不断努力,解决全球海洋塑料污染问题。
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引用次数: 0
The inequality of economic development increases the direct economic loss of storm surge disaster in China 经济发展的不平等增加了中国风暴潮灾害的直接经济损失
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-13 DOI: 10.1016/j.ocecoaman.2024.107427
Jiaju Lin , Shuo Wang , Yuning Zhao , Xiongzhi Xue
The coastal zone is the most intensive area of global economic activity and has been threatened by marine hazards. As climate change increases the vulnerability of coastal communities worldwide, coastal hazard management has become one of the most urgent tasks for ocean governance. While economic development may enhance social resilience, economic inequality, a side effect of economic growth, can play a significant role in social vulnerability to natural hazards. Coastal managers and policymakers urgently need relevant analyses to understand the relationship between economic inequality and marine hazards. Here, we analyzed the links between economic inequality and direct economic losses from storm surge disasters in 11 coastal regions of China between 2000 and 2020. Our results show that provincial income inequality significantly increases direct economic losses from storm surge disasters. For every 1% increase in the provincial disposable income Gini index, annual losses increase by 4.8%–7.8%. Moreover, with a 1% increase in the provincial income gap, relative annual losses (compared with provincial GDP) increase by 0.051%–0.056%. Heterogeneity analysis reveals that losses in northern and eastern marine economic circles are most affected by income inequality. We also find that with increasing economic development level, the aggravating effect of income inequality on losses becomes more significant. Our work indicated that achieving income equity may be a crucial factor for coastal hazard mitigation, which provides new insights into global coastal hazard management.
沿海地区是全球经济活动最密集的地区,一直受到海洋灾害的威胁。随着气候变化加剧全球沿海社区的脆弱性,沿海灾害管理已成为海洋治理最紧迫的任务之一。虽然经济发展可以增强社会复原力,但经济增长带来的副作用--经济不平等,也会在社会对自然灾害的脆弱性方面发挥重要作用。沿海地区的管理者和决策者迫切需要相关分析来了解经济不平等与海洋灾害之间的关系。在此,我们分析了 2000-2020 年间中国 11 个沿海地区经济不平等与风暴潮灾害直接经济损失之间的联系。结果表明,省级收入不平等会显著增加风暴潮灾害造成的直接经济损失。省级可支配收入基尼指数每增加 1%,年损失增加 4.8%-7.8%。此外,省内收入差距每增加 1%,相对年损失(与省内 GDP 相比)增加 0.051%-0.056%。异质性分析表明,北部和东部海洋经济圈的损失受收入不平等的影响最大。我们还发现,随着经济发展水平的提高,收入不平等对损失的加剧效应变得更加显著。我们的研究表明,实现收入公平可能是减轻沿海灾害的一个关键因素,这为全球沿海灾害管理提供了新的视角。
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引用次数: 0
Fair allocation of small-scale finfish mariculture zones in multi-use MPAs using multi criteria evaluation with stakeholder preferences 利用利益相关者偏好的多标准评估,公平分配多用途海洋保护区中的小型有鳍鱼类海产养殖区
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-13 DOI: 10.1016/j.ocecoaman.2024.107424
Hatim Albasri , Jesmond Sammut
Mariculture zones in MPAs are primarily determined based on cost-effective/environmental criteria and rarely incorporate local community preferences. This study proposed a GIS-based site selection model to solve the conflicting issues in designing mariculture zones to support small-scale finfish farmers in MPAs. The work was undertaken in the Anambas Archipelago MPA to represent a commonly populated small-island MPA in Indonesia and other developing countries. A three-stage site selection model (constraint, site suitability, and stakeholder preference) with various criteria was employed using a modified parameter-specific suitability function (PSSF) with a non-weighted geometric mean. The stakeholder preference was used to counterbalance the dominance of environmental sub-models. The first stage analysis using the constraint sub-model determined that only 10.16% (1199.70 km2) of the total extent of the study area (11,811.77 km2) was categorized as feasible for finfish mariculture. The subsequent site suitability sub-model determined that only 32.3% (387 km2) and 30.1% (361.6 km2) of the feasible areas were classed best for finfish mariculture in dry and wet seasons, respectively. Areas classified as good covered 41.25% (494.9 km2) and 40.1% (481.65 km2) of the total feasible areas in the dry and wet seasons, respectively. The stakeholder preference sub-model had classified 33.21 km2 (2.77%) of the feasible area as the best sites that could be allocated as mariculture zones for the local community. The site selection model successfully incorporates multiple site selection parameters, addresses poor data availability and improves fair allocation of mariculture zone in the MPA via two specific approaches. The nature of the geometric mean prevents the allocation of suitable areas in the MPA-specific zones, such as core zones. Second, the stakeholder preference improves the fairness of the mariculture zone allocation due to the incorporation of local fish farmers' preferences. The proposed site selection model could be used to designate mariculture zones in a data-poor MPA environment and facilitate local communities in developing sustainable small-scale finfish mariculture in MPAs.
海洋保护区内的海产养殖区主要根据成本效益/环境标准确定,很少考虑当地社区的偏好。本研究提出了一个基于地理信息系统的选址模型,以解决在设计海产养殖区以支持海洋保护区内小规模鳍鱼养殖户过程中的冲突问题。这项工作在阿南巴斯群岛海洋保护区进行,以代表印度尼西亚和其他发展中国家常见的小岛屿海洋保护区。采用了一个具有各种标准的三阶段选址模型(约束条件、选址适宜性和利益相关者偏好),并使用了一个具有非加权几何平均数的改良特定参数适宜性函数(PSSF)。利益相关者偏好用于平衡环境子模型的主导地位。使用限制子模型进行的第一阶段分析表明,在研究区域总面积(11,811.77 平方公里)中,只有 10.16% (1199.70 平方公里)被归类为可行的海产养殖区。随后的地点适宜性子模式确定,在旱季和雨季,分别只有 32.3%(387 平方公里)和 30.1%(361.6 平方公里)的可行区域被归类为最适宜有鳍海鱼养殖。在旱季和雨季,良好区域分别占可行区域总面积的 41.25%(494.9 平方公里)和 40.1%(481.65 平方公里)。利益相关者偏好子模型将 33.21 平方公里(2.77%)的可行区域划分为可分配给当地社区作为海产养殖区的最佳地点。选址模型成功纳入了多个选址参数,解决了数据可用性差的问题,并通过两种具体方法改善了海洋保护区海产养殖区的公平分配。几何平均数的性质阻碍了 MPA 特定区域(如核心区)内合适区域的分配。其次,利益相关者偏好由于纳入了当地养鱼户的偏好,提高了海产养殖区分配的公平性。建议的选址模型可用于在缺乏数据的海洋保护区环境中指定海产养殖区,并促进当地社区在海洋保护区内发展可持续的小规模有鳍鱼类海产养殖。
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引用次数: 0
Long-term spatiotemporal analysis of coastline morphological evolutions and their underlying mechanisms in the Pearl River Delta region of China 中国珠江三角洲地区海岸线形态演变及其内在机理的长期时空分析
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-13 DOI: 10.1016/j.ocecoaman.2024.107426
Zihao Ning , Changbo Jiang , Jie Chen , Zhiyuan Wu , Zhen Yao , Yuan Ma , Tianan Deng , Yulin Chen
The coastline, the important geographical components bordering the land and ocean, reflects abundant information on morphological evolutions. However, it undergoes continuous changing due to the compound effects of both natural and anthropogenic factors with varying intensities. Changes in the coastline are important indicators of coastal erosion, environmental changes in the coastal zone, and the rise and fall of ecosystems. The Pearl River Delta (PRD) region is rich in coastline resources, and the coastal evolution is extremely active with natural and human activities. In order to uncover the underlying mechanisms of the coastline evolutions in the PRD region, we quantitatively and qualitatively characterized the long-term alterations in coastline length, coastal development/decline, morphological structure, and the exploitation extent based on 9 satellite images of Landsat spanning from 1973 to 2021. Furthermore, we explored the driving factors of coastline change, with a view to providing some theoretical basis for the development, utilisation, protection and management of coastal resources and the sustainable development of the ecological environment in the PRD region. The findings reveal an outward expansion of coastline, resulting in a 587.49 km2 increase of new land over the past 48 years. In addition, the total coastline length in this region has grown from 1477.93 to 1604.72 km, with artificial coastline contributing 61.55%, while the number of fractal dimensions suggest the further growth of coastline. Furthermore, the cause analysis identifies the morphological evolution in PRD as a multi-factor dynamic process following a “ternary-multivariate-single” pattern. Moreover, the population, GDP, precipitation, and sand transport are defined as the primary drivers, with socio-economic impacts overweighing natural conditions, and the interaction of any two drivers is greater than the effect of a single factor.
海岸线是陆地和海洋交界的重要地理组成部分,反映了丰富的形态演变信息。然而,由于自然因素和人为因素的复合影响,海岸线也在不断地发生变化,而且强度不一。海岸线的变化是海岸侵蚀、海岸带环境变化和生态系统兴衰的重要标志。珠江三角洲(PRD)地区海岸线资源丰富,海岸演化在自然和人类活动中异常活跃。为了揭示珠江三角洲地区海岸线演变的内在机制,我们基于 1973 年至 2021 年的 9 幅 Landsat 卫星图像,定量和定性地描述了海岸线长度、海岸发展/衰退、形态结构和开发程度的长期变化。此外,我们还探讨了海岸线变化的驱动因素,以期为珠三角地区海岸资源的开发、利用、保护和管理以及生态环境的可持续发展提供一些理论依据。研究结果表明,过去 48 年来,珠三角地区海岸线向外扩张,新增陆地面积达 587.49 平方公里。此外,该地区的海岸线总长度从 1477.93 千米增加到 1604.72 千米,其中人工海岸线占 61.55%,而分形维数则表明海岸线将进一步增长。此外,成因分析认为珠三角的形态演变是一个多因素的动态过程,呈现 "三元-多元-单一 "的模式。此外,人口、GDP、降水量和输沙量被定义为主要驱动因素,社会经济影响大于自然条件影响,任何两个驱动因素的相互作用都大于单一因素的影响。
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引用次数: 0
Incorporating sense of place into the management of marine protected areas: A case study from new South Wales, Australia 将地方感纳入海洋保护区管理:澳大利亚新南威尔士州的案例研究
IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Pub Date : 2024-10-13 DOI: 10.1016/j.ocecoaman.2024.107417
Joe Duggan , Sarah Clement , Christopher Cvitanovic , Ingrid van Putten
Marine social-ecological systems are experiencing rapid changes across the globe due to a range of threats such as climate change and exploitation (e.g. overfishing). Marine Protected Areas (MPAs) are one tool to support the sustainable management of marine systems and resources, however, they are often implemented with mixed success, with one of the key critiques being a lack of consideration of social dimensions. To address this, there have been increased calls for greater consideration of a broad range of social factors, alongside environmental factors in the planning and management of MPAs. One phenomenon that stands to greatly inform and influence the success of MPA management is Sense of Place (SoP), that is, an individual or groups' emotional bond with a given place. While the importance and relevance of SoP is beginning to be acknowledged in the environmental academic literature, there are no documented examples of the phenomenon being incorporated into marine policy or management in a meaningful way. This study seeks to explore why this is the case and how it may be addressed. We achieve this through a case study approach, conducting in depth interviews with decision-makers involved in the management of the New South Wales Marine Estate (i.e. MPA managers), exploring i) their understanding of SoP, ii) their experience in incorporating it into policy, iii) the barriers and iv) enablers in doing so. Results show that despite a limited understanding of SoP, most participants do consider it to be important for marine policy and management and many have attempted to include it in their management efforts, although these attempts are largely centred around general consideration of social values and including diverse voices in policy discussion, as opposed to direct inclusion of SoP per se. A broad range of barriers to incorporating SoP into MPA management were also identified with political barriers, the ambiguity of the concept and challenges in having social values ‘win out’ against economic realities being the most common. Enablers were less commonly identified by study participants, and included the use of SoP as a tool or boundary object to develop shared understandings between stakeholders. We conclude by emphasizing the need for further research on how to improve the incorporation of SoP into MPA management, and outline how this may be achieved through the study of bright spots.
由于气候变化和开发(如过度捕捞)等一系列威胁,全球海洋社会生态系统正在经历快速变化。海洋保护区(MPAs)是支持海洋系统和资源可持续管理的一种工具,但其实施效果往往好坏参半,其中一个主要批评是缺乏对社会层面的考虑。为了解决这个问题,越来越多的人呼吁在规划和管理海洋保护区时,在考虑环境因素的同时,更多地考虑广泛的社会因素。地方感 (SoP),即个人或群体与特定地方的情感纽带,是对海洋保护区管理的成功与否有重大影响的一种现象。虽然 SoP 的重要性和相关性已开始在环境学术文献中得到认可,但目前还没有记录表明这种现象已被有意义地纳入海洋政策或管理中。本研究试图探讨为什么会出现这种情况,以及如何解决这一问题。为此,我们采用了案例研究方法,对参与新南威尔士海洋产业管理的决策者(即海洋保护区管理者)进行了深入访谈,探讨了 i) 他们对 SoP 的理解;ii) 他们将 SoP 纳入政策的经验;iii) 将 SoP 纳入政策的障碍和 iv) 促进因素。结果表明,尽管大多数参与者对 SoP 的理解有限,但他们确实认为 SoP 对海洋政策和管理很重要,而且许多人已尝试将 SoP 纳入他们的管理工作中,尽管这些尝试主要围绕对社会价值的一般考虑以及在政策讨论中纳入不同的声音,而不是直接纳入 SoP 本身。将社会政策纳入海洋保护区管理的障碍范围很广,其中最常见的是政治障碍、概念模糊以及社会价值 "战胜 "经济现实的挑战。研究参与者发现的促进因素较少,其中包括将 SoP 作为一种工具或边界对象,在利益相关者之间形成共识。最后,我们强调需要进一步研究如何更好地将 SoP 纳入海洋保护区管理,并概述了如何通过研究亮点来实现这一目标。
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引用次数: 0
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Ocean & Coastal Management
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