首页期刊导航|Ocean & coastal management
期刊信息/Journal information
Ocean & coastal management
Elsevier Applied Science
Ocean & coastal management

Elsevier Applied Science

月刊

0964-5691

Ocean & coastal management/Journal Ocean & coastal managementAHCISCIISTP
正式出版
收录年代

    Examining the status of mangrove forest dynamics and community-led management on the Colombian Pacific coast

    Murillo-Sandoval, Paulo J.Perea-Ardila, MauricioSimard, Marc
    1.1-1.10页
    查看更多>>摘要：While satellite availability has enabled assessments of significant mangrove loss in several regions, such as Southeast Asia and the Caribbean mangrove forests, there are very few examples of mangrove conservation in communities with strong local organizations and well-developed environmental management. In the Gulf of Tribuga in the northern of Colombia's Pacific coast, mangrove cover has remained relatively stable for decades. This is not only due to factors such as low population, lack of infrastructure expansion, and policies such as collective land titling, but also significantly because of the often-overlooked role of ecosystem management by local communities. We investigate the relationship of mangrove changes observed from multisource remote sensing datasets with management practices by local communities in the Gulf of Tribuga. Results using the Landsat time series suggest that mangrove cover has decreased by 12 % between 2000 and 2020 (0.6 % annually). In the case of Sentinel-1, sub-annual mangrove disturbances account for similar to 30ha from 2018 to 2023. Although the management plan has partially contributed to preventing deforestation, local communities have expressed concerns. There is a need for constant monitoring of coastal variation and assessment of future threats associated with planned infrastructure investment, such as road expansion and construction of a port. This study provides a landscape analysis to help understand mangrove forest change and how local perceptions and management are linked to highlight future negative impacts on mangrove forests and communities' well-being.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    The politics of an Alien Monster: Retrospective analysis of the use of evidence at the science-policy interface

    Humphreys, John
    1.1-1.6页
    查看更多>>摘要：Indigenous to east Asian coasts the Manila clam Ruditapes philippinarum arrived in UK estuaries in the 1980s during a key period in the emergence of conservation policy and invasion science. In contrast to many non-native arrivals the introductions were intentional, and government sponsored. The British government was determined to introduce the species for aquaculture and the economic benefits that would result. To this end it circumvented its own recently introduced legislation prohibiting the "release or escape to the wild" of non-native species. This was achieved by re-interpreting the prohibition to apply only in circumstances where a species, once escaped, could successfully naturalise. The government thereby shifted attention from the unequivocal legal question of "release or escape" to scientific predictions on the species' reproductive capability in British conditions. This sparked contention and polarisation between two groups of scientists from distinct sub-disciplines (fisheries and conservation). In the national press the species was described as an "alien monster". Today, 40+ years after its introduction, we can reflect on the selection, interpretation and use of the evidence available at the time, and the relationship between what contrasting scientific opinions predicted, and what subsequently happened. Paradoxically, the species is now both an ecological and economic asset in southern England.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    A rapid bycatch assessment framework for small-scale fisheries: A case study on horseshoe crab (Tachypleus tridentatus) bycatch

    Chen, XiaohaiXie, MujiaoFeng, JuanZou, Jixing...
    1.1-1.12页
    查看更多>>摘要：Timely bycatch data is crucial for detecting rare and endangered species impacted by small-scale fisheries, supporting sustainable management. Horseshoe crabs (Tachypleus tridentatus), valued for the utility of their blood cells for detecting bacterial endotoxins, continue to be harvested despite their demographically vulnerable status and declining populations. Timely bycatch monitoring is crucial to limit further fishery mortality and enforce species-specific bycatch quotas. By combining local ecological knowledge surveys, deep learning algorithms, and remote sensing techniques, this study developed a framework for rapidly assessing T. tridentatus bycatch and associated indicators. The framework estimates that at least 9120 +/- 315 T. tridentatus are bycaught annually in Leizhou Bay, China, with a catch per unit effort (CPUE) of 0.29 +/- 0.01 T. tridentatus per vessel per month. Bycatch rates are significantly higher in gillnet fisheries than in trawl fisheries, and the probability of incidental capture is notably greater during the spring and autumn seasons. Additionally, bycatch intensity exhibits significant spatial heterogeneity, indicating areas where protection efforts should be prioritized. The results of this study underscored the severity of T. tridentatus bycatch in coastal regions and indicate measures to reduce bycatch at the institutional, technical, and operational levels. These recommendations, while focused on T. tridentatus, offer a broader framework for conserving other vulnerable species.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    Exploring the contribution of multi-use approach in fostering local blue economy: Insights from the Global South

    Diederichsen, Sereno D.Weiss, Carlos V. C.Lima, Francisco A. V.dos Santos, Bruno A. Q....
    1.1-1.9页
    查看更多>>摘要：Ocean Multi-use (MU) has gained significant attention as an approach with great potential to promote a more sustainable and space efficient' Blue Economy development. Despite many efforts to implement the multi-use concept into practice, MU still has many practical challenges, which is even more evident outside the European context, where there is significant policy support for MU. This paper aims to elucidate how MU can bolster the local blue economy, particularly within the context of the Global South. The research is based on a case study in southern Brazil, within a traditional fishing community that occupies a marine protected area. A practical analysis of the synergies between community-based tourism, artisanal fishing and conservation was done through interviews with key stakeholders. The main benefits, constraints, opportunities, and risks of MU activities were identified. Results demonstrate the positive impact of MU promoting revenue, environmental education, and cultural and historical attributes. MU has shown great positive impact on social, economic, and environmental aspects within this case study. Key enabling factors that allowed the MU development were horizontal participatory governance and the protagonist of fishers. In terms of existing challenges, the absence of investment in infrastructure, fragmented governance and lack of institutional support was pointed out as the main constraint and limitations to strengthening MU. We argue that MU can be an important strategy for promoting the local blue economy. In the Global South context, the efficacy of MU initiatives appears intricately tied to the participation of local actors in a manner tailored to local contexts and challenges.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    Tidal effects on the dispersal and water age of the plumes from eight outlets of the Pearl river during the wet summer

    Zhang, GuangHu, PengpengHu, SuanZhang, Heng...
    1.1-1.16页
    查看更多>>摘要：This study quantitatively evaluates the impact of tidal dynamics on dispersal and water age of the plumes from eight outlets of the Pearl River Estuary (PRE) using the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system. The results demonstrate that tidal forces play a crucial role in modulating estuarine transport and mixing processes. Regarding tidal effects on plume dispersal, tidal activity enhances the overlap of tracers released from the Yamen and Hutiaomen outlets in the Huangmaohai Estuary, extending their eastward and westward transport, respectively. However, for the Lingdingyang Estuary, tidal-induced convergence along the eastern side of the West Shoal significantly constrains the lateral spread of upstream plumes, leading to a predominant west-to-east distribution of high-concentration tracers from the Hengmen, Hongqili, Jiaomen, and Humen outlets. Regarding tidal effects on water age, tides generally increase surface water age by 1-4 days while reducing bottom water age by more than 5 days, resulting in a substantial decrease in the surface-to-bottom water age difference from 8.9 days in the no-tide scenario to 4.5 days in the realistic scenario. This reduction is primarily attributed to enhanced vertical mixing, which intensifies turbulence (by a factor of 5), increases downward buoyancy flux (by 1.4 times), and reduces stratification by 41 %. Additionally, the interaction between tidal forcing and seabed topography modulates bottom friction and vertical viscosity, weakening estuarine circulation and seaward tracer flux over shallow shoals while enhancing these processes in deep channels. Consequently, tides increase water age at shoals but decrease it in downstream channels and bulge regions. These findings highlight the pivotal role of tidal dynamics in modulating water age and freshwater fluxes during the wet summer season in the PRE. The study provides novel insights into estuarine transport processes, emphasizing the broader implications of tides on water quality and ecological dynamics. The findings offer science-based management solutions for the PRE, specifically: (1) tidal-phase-dependent pollutant load allocation, and (2) outlet-specific pollutant discharge regulation to maintain ecosystem health under dynamic hydrodynamic forcing.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    Practitioner perspectives of wellbeing in rapidly changing Australian coastal communities

    Elrick-Barr, Carmen E.Smith, Timothy F.Thomsen, Dana C.
    1.1-1.10页
    查看更多>>摘要：Coastal communities are situated in dynamic socio-ecological contexts at risk from the impacts of climate change and other hazards. Meaningful strategies to maintain and/or improve community wellbeing are more important than ever; and so too is understanding the impact of chosen strategies. Past research has highlighted divergence in the how problems impacting the coast are framed in policies that direct management action; hampering the ability to holistically improve wellbeing (across social, economic and environmental grounds). Yet calls to better understand whether perceptions of those responding to change also diverge, and implications for improving wellbeing in coastal areas, remain unanswered. To address this gap, we interviewed key stakeholders that respond to change (coastal managers) and seek to improve wellbeing (community service providers) in Australia's fastest growing coastal areas and used Maslow's Hierarchy of Needs theory to examine divergence and convergence in perceptions of needs attainment as indicative of progress towards improved wellbeing. All stakeholders identified inequity in the ability of community members to meet their needs, but the impact of coastal hazards on community needs were perceived differently. Coastal managers perceived greater impacts on higher order needs (self-esteem and self-actualisation) while community service providers perceived greater impacts on lower order needs (physiological). These differences shape the prioritisation of responses and highlight the need for improved multisectoral understanding and collaborative strategies to improve wellbeing in coastal areas.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    Microplastic contamination, comparative retention efficiency, and ecological hazard in saltmarsh, mangrove, sandy, and muddy habitats along the northern Bay of Bengal coast

    Paray, Bilal AhamadRiya, Khadijatul KubraMarshall, David J.Hossain, Md Kamal...
    1.1-1.10页
    查看更多>>摘要：Understanding the role of coastal habitats as microplastic "sinks" and estimating associated ecological risks are crucial due to the unique biodiversity and socioeconomic importance of these ecosystems. This study was the first to assess microplastic (MP) retention efficiency in the sediments of four coastal habitat types (saltmarsh, mangrove, mudflat and sandflat) along the northern Bay of Bengal coast, focusing on morpho-chemical attributes, accumulation patterns, and associated ecological risks. Univariate and multivariate statistical analyses (ANOVA, ANOSIM, and nMDS) were applied to examine variations in MP abundance and retention patterns across coastal habitats.The analysis unveiled the presence of MPs across all habitats, with retention trends of saltmarsh > mangrove > mudflat > sandflat. The higher accumulation of MPs in saltmarshes suggested they might serve to reduce the spread of MPs from land to ocean, thereby mitigating their negative impacts.The average MP accumulation was 35.14 +/- 19.19 items/kg of sediment, with the highest concentrations in vegetated sediments (mangrove and saltmarsh), showing significant habitat variation (p < 0.05). Vegetation played a key role in MP movement, distribution, and accumulation, with fibers (85 %) being the most prevalent form, followed by films (11 %), fragments (2.5 %), and foams (1.3 %). MPs <0.5 mm were predominant (83 %), suggesting that coastal habitats are effective in trapping smaller MPs. FTIR analysis identified PE (36.67 %), PET (16.67 %), SBR (13 %), Cellulose (13.33 %), PP (11.67 %), and PS (8.33 %) across habitats. The Pollution Load Index (PLI) indicated high MP pollution, while the Contamination Factor (CF) showed a moderate pollution level. The Pollution Hazard Index (PHI) revealed a category II hazard, highlighting significant threats to coastal ecosystems. The results supports vegetation promotion to limit MP spread and the development of targeted pollution management and mitigation strategies.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    Intelligent detection and emission characteristics analysis of black smoke and blackness from navigating ships: A case study of Shanghai waters

    Deng, MengtaoPeng, ShitaoHu, JianboWang, Zhongru...
    1.1-1.12页
    查看更多>>摘要：Ship black smoke is a serious air pollution phenomenon, an important regulatory object for preventing and controlling ship air pollution. The traditional black smoke detection method is the Ringelmann smoke chart, which is highly subjective, has low detection accuracy, and is easily affected by environmental background and illumination variation. To solve the problems of the traditional Ringelmann smoke chart method, an intelligent ship black smoke intelligent tracking and detection algorithm is proposed, and an intelligent ship black smoke detection APP is developed. Secondly, 5224 cruising ships are monitored during the experiment, and 155 ships with black smoke are found. Then, the black smoke video of 155 ships was detected using the Ringelmann smoke chart method and the proposed method, respectively, and the experimental results demonstrate that the proposed method not only can reduce the influence of illumination variation and the differences in visual habits, but also has high detection accuracy. Moreover, the developed novel approach is a much more versatile method to be followed in general to efficiently and accurately check ship emissions for smoke blackness. Finally, a comprehensive analysis of the black smoke emission characteristics of ships in the waters of the Yangtze estuary was carried out. It was found that 0.15 % exceeded the Ringelmann blackness level of 2, providing a reference basis for the formulation of legal and regulatory documents.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    Elasmobranchs in offshore wind farms

    Hermans, AnnemiekSumner-Hempel, Aurielvan den Brink, Xantiavan Berkel, Daniel...
    1.1-1.9页
    查看更多>>摘要：The development of offshore wind farms (OWFs) in coastal seas presents both risks and opportunities for threatened elasmobranch populations, but their actual influence on elasmobranch presence and habitat use remains unclear. As more OWFs are planned, the lack of available space puts pressure on stakeholders to create multi-use areas as demands from fisheries, conservation and the energy sector become increasingly overlapping. Insight into interactions between these demands is needed to support policymakers in marine spatial planning and management decisions. One of the important questions is to what extent OWFs influence elasmobranch presence and habitat use. Here, we (i) ascertain elasmobranch occurrence in OWFs, (ii) determine whether elasmobranch presence varies between sampling locations, and (iii) investigate the influence of seasonality on elasmobranch presence. We collected 436 seawater samples within four OWFs and the presence of 5 different elasmobranch species (2 sharks, 3 skates) was confirmed. The overall detection probability of elasmobranchs in the four OWFs was 8.5 %. A quarterly sampling campaign over 2 years demonstrated the seasonality of Mustelus asterias on the subsea power cables, which corresponded with known migratory movements of this species. Our findings confirm that sharks and skates are present in OWFs. We advise caution when introducing multi-use activities that could counteract the benefits of bottom trawling fisheries exclusion. Investigating how these threatened species use OWFs would aid policymakers in determining the (multi-use) function of OWFs in terms of EU legislative acts including the Habitat Directive, MSFD, Biodiversity Strategy 2030 and the Nature Restoration Law.
      原文链接:
    • NETL
    • NSTL
    • Elsevier

    Marine diseases as a threat to society: Adopting and advancing the UNDRR risk framework

    Kluger, Lotta ClaraKarstens, SvenjaLopes, Ana FariaKuhn, Annegret...
    1.1-1.13页
    查看更多>>摘要：Marine diseases change ecosystem dynamics and functioning, and modify ecosystem service (e.g. food) provisioning. Understanding marine diseases' occurrence and frequency, and consequences and impacts thereof, is crucial for humans and nature alike, though the implications for society beyond human health have received little attention in scientific debates yet. This study advocates for the uptake of marine diseases into hazard landscapes currently being evaluated and discusses the different components of risks that marine diseases pose to societies: Adopting the analytical lens of the UNDRR risk framework to oyster farms as a specific case, we explore disease outbreaks in those as hazards to society. Looking at associated exposure and vulnerability, potential risk reduction options are elaborated. The framework is broadened by including indirect and spill-over effects within the social-ecological system-to local coastal communities. Marine diseases management is challenged by the fluidity of the ocean and fragmented governance structures. To reduce social-ecological repercussions and overall risks for society of disease outbreaks we thus endorse for a thorough risk evaluation and sensible, anticipatory communication.
      原文链接:
    • NETL
    • NSTL
    • Elsevier