Journal of Sea Research最新文献_第9页

Resilience solution to solve prisoner's dilemma in port shore power usage: The value of government subsidies on port 解决港口岸电囚徒困境的弹性方案：政府对港口补贴的价值

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-03-15 DOI: 10.1016/j.seares.2025.102578

Zhening Ye , Jie Wang , Junjin Wang

As environmental pollution increases and pollutants emitted by ships pose a threat to the environment and health, port shore power has become an effective means of reducing pollution from ships. However, shipping companies are affected by fuel prices and may ignore environmental issues and jeopardize social welfare in pursuit of their own interests. Therefore, government intervention is particularly important, especially through subsidies to solve the conflict between competition among shipping companies and environmental pollution. This study develops a three-tier supply chain model incorporating governmental authorities, port operators, and dual shipping companies to examine shore power adoption strategies. Through Nash equilibrium analysis, we investigate the efficiency of shore power utilization under both subsidized and non-subsidized scenarios in order to find the resilience solution for the relevant stakeholders. The findings reveal that in the absence of government intervention, shipping companies' equilibrium strategies are primarily determined by the relative costs of conventional fuel and shore power, leading to potential Prisoner's Dilemma situations. The introduction of government subsidies enhances the likelihood of achieving stable equilibrium for both shipping companies while mitigating the Prisoner's Dilemma effect. The study provides references of resilience solution for related fields and policy recommendations for parties in the port and shipping supply chain.

随着环境污染日益严重，船舶排放的污染物对环境和健康构成威胁，港口岸电已成为减少船舶污染的有效手段。然而，航运公司受到燃料价格的影响，可能会为了追求自身利益而忽视环境问题，危害社会福利。因此，政府干预尤为重要，特别是通过补贴来解决航运公司之间的竞争与环境污染之间的冲突。本研究建立了一个三层供应链模型，包括政府当局、港口运营商和双重航运公司，以检验岸电采用策略。通过纳什均衡分析，研究了补贴和非补贴两种情况下的岸电利用效率，以寻求相关利益相关者的弹性解决方案。研究结果表明，在没有政府干预的情况下，航运公司的均衡策略主要由传统燃料和岸电的相对成本决定，从而导致潜在的囚徒困境。政府补贴的引入提高了两家航运公司实现稳定均衡的可能性，同时减轻了囚徒困境效应。本研究为相关领域提供弹性解决方案的参考，并为港口航运供应链各方提供政策建议。

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引用次数: 0

The effect of new quality productivity on port sustainability: Evidence from China 新质量生产力对港口可持续性的影响：来自中国的证据

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-03-05 DOI: 10.1016/j.seares.2025.102575

Jiayun Nie, Jia Shen , Yuting Chen

The development of new quality productivity (NQP) provides fresh impetus and potential for the sustainable development of ports. Utilizing panel data from 44 coastal ports and their respective municipal administrative regions spanning from 2010 to 2021, this study empirically analyzes the impact of NQP on port sustainability and further examines the underlying mechanisms and heterogeneity of its effects. The findings reveal that an increase in NQP significantly enhances port sustainability. The results of mechanism tests indicate that heightened NQP fosters port sustainability by adjusting industrial structures and elevating urban green innovation levels, with the public's digital attention playing a positive moderating role. Heterogeneity analysis demonstrates that the promotional effect of NQP on port sustainability is stronger in city samples characterized by better business environments, superior soft environments, lower business costs, and those dominated by the secondary industry. This study elucidates the significance of NQP in fostering the sustainable development of ports, thereby providing policymakers with a robust foundation for optimizing port development strategies and enhancing sustainable capacity.

新质量生产力的发展为港口的可持续发展提供了新的动力和潜力。本研究利用2010 - 2021年44个沿海港口及其所属城市行政区的面板数据，实证分析了NQP对港口可持续性的影响，并进一步探讨了其影响机制和异质性。研究结果表明，NQP的增加显著提高了港口的可持续性。机制检验结果表明，NQP的提高通过调整产业结构和提升城市绿色创新水平来促进港口可持续发展，其中公众的数字关注起到正向调节作用。异质性分析表明，在营商环境较好、软环境优越、营商成本较低、第二产业占主导地位的城市样本中，新质量计划对港口可持续发展的促进作用更强。本研究阐明了NQP在促进港口可持续发展方面的重要意义，从而为政策制定者优化港口发展战略和提高可持续能力提供了坚实的基础。

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引用次数: 0

Short- and long-term tidal level forecasting: A novel hybrid TCN + LSTM framework 短期和长期潮位预报：一种新的TCN + LSTM混合框架

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-03-01 DOI: 10.1016/j.seares.2025.102577

Abdulrazak H. Almaliki , Afaq Khattak

Tidal level forecasting is essential for maritime safety, coastal management, and infrastructure planning. This study proposes a hybrid framework combining Temporal Convolutional Network (TCN) and Long Short-Term Memory (LSTM) model to predict tidal levels across short- and long-term horizons. The TCN excels at capturing temporal patterns, while the LSTM effectively models sequential dependencies, facilitating accurate forecasting of tidal fluctuations. Covariance Matrix Adaptation Evolution Strategy (CMA-ES) was used for hyperparameter tuning of both TCN and LSTM component of hybrid framework. Historical tidal data from Ras Tanura (2012−2021) was utilized for training and evaluation. The analysis revealed that the hybrid TCN + LSTM framework optimized via CMA-ES outperformed other deep learning models, including standalone LSTM, GRU, and CNN, demonstrating enhanced accuracy and reliability across various forecasting horizons. For short-term predictions (T + 5 and T + 10 days), it achieved MAE values of 0.073 and 0.081, with MAPE values of 7.43 % and 9.15 %, respectively. For longer-term horizons (T + 30 and T + 60 days), it maintained accuracy with MAE values of 0.050 and 0.054 and corresponding MAPE values of 5.39 % and 4.93 %. The study demonstrates the potential of the hybrid TCN + LSTM framework for reliable tidal level forecasting, supporting better planning and decision-making in coastal and maritime applications.

潮位预报对海上安全、海岸管理和基础设施规划至关重要。本研究提出了一种结合时间卷积网络（TCN）和长短期记忆（LSTM）模型的混合框架来预测短期和长期的潮位。TCN擅长捕捉时间模式，而LSTM则有效地模拟了顺序依赖关系，有助于准确预测潮汐波动。采用协方差矩阵自适应进化策略（CMA-ES）对混合框架的TCN和LSTM组件进行超参数整定。利用Ras Tanura（2012 - 2021）的历史潮汐数据进行培训和评估。分析显示，通过CMA-ES优化的混合TCN + LSTM框架优于其他深度学习模型，包括独立的LSTM、GRU和CNN，在各种预测范围内显示出更高的准确性和可靠性。对于短期预测（T + 5天和T + 10天），MAE值分别为0.073和0.081，MAPE值分别为7.43%和9.15%。对于较长期（T + 30天和T + 60天），MAE值分别为0.050和0.054，对应的MAPE值分别为5.39%和4.93%。该研究证明了TCN + LSTM混合框架在可靠的潮位预报方面的潜力，支持在沿海和海上应用中更好的规划和决策。

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引用次数: 0

Understanding the shift in bacterial community structure in response to antibiotic pollution and rise in antibiotic resistant genes within Dapeng Cove sea, China 了解大鹏湾海域细菌群落结构对抗生素污染的响应及耐药基因的增加

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-02-27 DOI: 10.1016/j.seares.2025.102576

Feng Yan , Zhiguang Niu

Antibiotic pollution in marine environments poses a growing threat to ecosystem health and biodiversity. This study evaluated the shift in bacterial community structure in response to antibiotic pollution and rise in antibiotic resistant genes within the ecologically significant Dapeng Cove, Southeast China. Utilizing molecular analysis and bioinformatics, the study examined bacterial community structures, antibiotic concentrations, and the distribution of antibiotic resistance genes (ARGs) across 5 sites (A, B, C, D and E) within the Dapeng Cove sea, China. The findings revealed significant variations in bacterial diversity and ARG concentrations among sampling sites, with elevated antibiotic pollution at sites D and E correlating with reduced alpha diversity and dominance of resistant taxa such as Umbonibacter species. In contrast, site B exhibited lower antibiotic levels and higher microbial diversity, suggesting the resilience of less impacted ecosystems. ARGs, including intl1, sul1, and tetA, were most prevalent in heavily polluted sites, reflecting the role of antibiotic contamination in promoting horizontal gene transfer and resistance proliferation. Exposure to antibiotic pollution e further disrupted coral-associated bacterial communities, highlighting the vulnerability of marine ecosystems antibiotic pollution. This study provides critical insights into the interplay between antibiotic pollution, microbial ecology, and coral health, offering a foundation for policies addressing the environmental impacts of pharmaceutical contaminants.

海洋环境中的抗生素污染对生态系统健康和生物多样性构成越来越大的威胁。本研究评估了中国东南部生态重要的大鹏湾细菌群落结构对抗生素污染的响应变化和抗生素耐药基因的增加。利用分子分析和生物信息学技术，研究了中国大鹏湾海域5个地点（A、B、C、D和E）的细菌群落结构、抗生素浓度和抗生素耐药基因（ARGs）分布。结果显示，不同采样点的细菌多样性和ARG浓度存在显著差异，D和E点抗生素污染升高与α多样性降低和耐药分类群（如Umbonibacter物种）的优势相关。相比之下，B点显示出较低的抗生素水平和较高的微生物多样性，表明受影响较小的生态系统具有弹性。包括int1、sul1和tetA在内的ARGs在严重污染位点最为普遍，反映了抗生素污染在促进基因水平转移和耐药性增殖中的作用。抗生素污染进一步破坏了与珊瑚相关的细菌群落，凸显了海洋生态系统抗生素污染的脆弱性。这项研究为抗生素污染、微生物生态和珊瑚健康之间的相互作用提供了重要的见解，为解决药物污染物对环境影响的政策提供了基础。

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引用次数: 0

Photo-id as an alternative to monitor marine turtles in the Gulf of Venezuela 在委内瑞拉湾，作为监测海龟的另一种选择

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-02-14 DOI: 10.1016/j.seares.2025.102574

María Gabriela Sandoval , Héctor Barrios-Garrido

Conservation management programs have used diverse methods to monitor populations of threatened species that vary in effectiveness, duration, and costs; making its implementation a challenge. The present study was carried out to test the use of photo-identification as an economical and efficient alternative for marine turtle monitoring in the Gulf of Venezuela. The implementation of this protocol is possible due to the unique and unrepeatable facial scales pattern of individuals in the marine turtles. We created a database of photo-identifiable profiles available from records of turtles captured, tagged, and released in the Gulf of Venezuela from 2000 to 2017 (n = 118). Likewise, we used two photo-matching software (I³S Pattern and Nature Pattern Match) to optimize the process of compatibility of individuals and we evaluated their efficiency in comparison with the non-assisted manual method (“by human eye” or “by naked eye”). We found that I³S Pattern was more effective during the matching process than NPM (90 % and 65 % accuracy respectively), while the manual method was much more accurate than the software. However, the former method is impractical when working with large databases. Our results indicate that I³S Pattern represents the most efficient software of image matching by reducing the time needed and simplifying the manual “by human eye” analysis. We recommend incorporating more photos in the database in order to verify the effectiveness of both studied software, and regularly to corroborate the results generated by the software assessed on this research using the “human eye” manual method.

保护管理项目使用了不同的方法来监测受威胁物种的数量，这些方法在有效性、持续时间和成本上各不相同；使其实施成为一项挑战。本研究的目的是测试在委内瑞拉湾使用照片识别作为一种经济和有效的替代方法来监测海龟。由于海龟个体独特且不可重复的面部鳞片模式，该议定书的实施成为可能。我们从2000年至2017年在委内瑞拉湾捕获、标记和释放的海龟记录中创建了一个照片可识别档案数据库（n = 118）。同样，我们使用两种照片匹配软件（I3S Pattern和Nature Pattern Match）来优化个体的匹配过程，并与非辅助人工方法（“通过人眼”或“通过肉眼”）进行比较，评估其效率。我们发现I3S模式在匹配过程中比NPM更有效（准确率分别为90%和65%），而手工方法的准确率远远高于软件方法。但是，前一种方法在处理大型数据库时是不切实际的。结果表明，I3S Pattern减少了所需时间，简化了人工“肉眼”分析，是最高效的图像匹配软件。我们建议在数据库中加入更多的照片，以验证所研究软件的有效性，并定期使用“人眼”手动方法验证本研究中评估的软件产生的结果。

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引用次数: 0

The brown alga Rugulopteryx okamurae: Insights into epifaunal diversity across marginal populations in Gran Canaria 褐藻okamurae Rugulopteryx：对大加纳利岛边缘种群的脚掌外多样性的见解

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-02-13 DOI: 10.1016/j.seares.2025.102571

Mónica Martín Jiménez, Rodrigo Riera

Biological invasions pose significant threats to biodiversity, primarily through the depletion of natural resources and the disruption of local ecosystems. Our study focuses on Rugulopteryx okamurae (E. Y. Dawson) I·K. Hwang, W.J. Lee, and H.S. Kim, an invasive alga proliferating in the Macaronesia and Mediterranean regions. This research examines the epifaunal assemblages associated with R. okamurae across eastern and northeastern zones in Gran Canaria, Canary Islands. A total of 11,398 individuals from 63 species within five taxonomic groups were collected, with Arthropoda dominating the samples (88.68 % of the overall abundance), particularly the amphipods Apohyale perieri and A. stebbingi. Significant differences in species richness and individual abundance were observed between populations from San Cristóbal, Jinámar and Ojos de Garza. The central populations exhibited the highest species richness, while the northern populations showed the lowest. Multivariate analyses revealed distinct community compositions between the edge and central populations, underscoring the invasive alga's capacity to support diverse and abundant epifaunal assemblages. Moreover, R. okamurae demonstrated remarkable dominance in the study area, achieving total coverage of up to 100 % at certain sampling sites. This extensive coverage highlights the alga's ability to sustain a rich and varied epifaunal community, characterized by both species abundance and high biodiversity. The findings emphasize the need for targeted conservation and management strategies to mitigate the spread of R. okamurae and protect local biodiversity from further disruption.

生物入侵对生物多样性构成重大威胁，主要是通过自然资源的枯竭和当地生态系统的破坏。本研究的重点是冈村Rugulopteryx (e.y. Dawson) I·K。Hwang， W.J. Lee， H.S. Kim，一种在夏威夷和地中海地区繁殖的入侵藻类。本研究考察了加那利群岛大加那利岛东部和东北部地区与okamurae相关的脚掌上组合。共采集到5个类群63种11398只，节肢动物占多数，占总丰度的88.68%，其中以片足类Apohyale perieri和A. stebbingi居多。在San Cristóbal、Jinámar和Ojos de Garza的种群间，物种丰富度和个体丰富度存在显著差异。中部居群物种丰富度最高，北部居群物种丰富度最低。多变量分析显示，边缘种群和中心种群之间的群落组成不同，强调了入侵藻类支持丰富多样的地表层组合的能力。此外，冈村夜蛾在研究区表现出显著的优势，在某些采样点的总覆盖率高达100%。这种广泛的覆盖突出了藻类维持丰富多样的地表层群落的能力，其特点是物种丰富和生物多样性高。这些发现强调了有针对性的保护和管理策略的必要性，以减轻冈村田鼠的传播，保护当地的生物多样性免受进一步的破坏。

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引用次数: 0

Long-term biogeochemical variations in the southern South China Sea and adjacent seas: A model data analysis 南海南部及邻近海域生物地球化学的长期变化：一个模式数据分析

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-02-13 DOI: 10.1016/j.seares.2025.102573

Winfred Marshal , Nur Hidayah Roseli , Roswati Md Amin , Mohd Fadzil Bin Mohd Akhir

The southern portion of the South China Sea (SCS), which constitutes the largest semi-enclosed marginal sea in Southeast Asia, is currently undergoing unusual surface warming, which may significantly impact its marine ecosystems. This study examines the long-term variations of biogeochemistry in the southern SCS and its adjacent seas from 1993 to 2020, using data from the Copernicus Marine Environment Monitoring Service (CMEMS) model to better understand the implications of these warming trends on nutrient dynamics and overall marine health. Analysis of interannual variations highlights a strong relationship between sea surface temperature (SST) anomalies and the occurrence of El Niño-Southern Oscillation and Indian Ocean Dipole events, leading to significant alterations in biogeochemistry in the southern SCS. These findings emphasize the sensitivity of biogeochemistry to climatic variability. Over the study period, a region-wide increasing SST trend (0.2 °C per decade) indicates the influence of climate change, while surface Chlorophyll concentration and Phytoplankton biomass show decreasing trends, suggesting potential shifts in primary productivity. Additionally, surface Dissolved Oxygen and pH levels have significantly declined, pointing to broader impacts on ocean health. These observed declining trends in biogeochemical variables are particularly pronounced in the southeastern Vietnam, East Coast of Peninsular Malaysia, and Java Sea regions, which are primarily driven by significant changes in SST and related wind patterns. The weakening of summer southwesterly winds and winter northeasterly winds, evidenced by linear trends in wind stress, has reduced nutrient supply through upwelling and decreased ocean heat loss, respectively. This disruption exacerbates surface ocean warming and limits the replenishment of essential nutrients, leading to diminished primary productivity and altering marine ecosystem dynamics. This study provides valuable insights into present biogeochemical trends under climate change, forming a crucial basis for future projection studies in this region.

南海南部是东南亚最大的半封闭边缘海，目前正经历异常的海面变暖，这可能对其海洋生态系统产生重大影响。本研究利用哥白尼海洋环境监测服务（CMEMS）模型的数据，研究了1993年至2020年南中国海及其邻近海域生物地球化学的长期变化，以更好地了解这些变暖趋势对营养动态和整体海洋健康的影响。年际变化分析表明，海表温度异常与El Niño-Southern涛动和印度洋偶极子事件的发生密切相关，导致南南海生物地球化学发生重大变化。这些发现强调了生物地球化学对气候变化的敏感性。在研究期内，区域海温呈上升趋势（0.2°C / 10年），表明受气候变化的影响，而表层叶绿素浓度和浮游植物生物量呈下降趋势，表明初级生产力可能发生变化。此外，表面溶解氧和pH值显著下降，表明对海洋健康的影响更广泛。这些生物地球化学变量的下降趋势在越南东南部、马来西亚半岛东海岸和爪哇海地区尤为明显，这主要是由海温和相关风型的显著变化驱动的。夏季西南风和冬季东北风的减弱分别减少了上升流带来的养分供应，减少了海洋热损失，风应力呈线性趋势。这种破坏加剧了海洋表面变暖，限制了基本营养物质的补充，导致初级生产力下降，改变了海洋生态系统动态。该研究对当前气候变化背景下的生物地球化学变化趋势提供了有价值的见解，为该地区未来的预测研究奠定了重要的基础。

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引用次数: 0

Tidally driven porewater exchange and the key affecting factors in mangroves in the Pearl River Estuary, China 珠江口红树林潮汐驱动孔隙水交换及其关键影响因素

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-02-12 DOI: 10.1016/j.seares.2025.102572

Ziying He , Lili Zhao , Xueyin Zhuang , Ying Zeng , Bowen Hu , Xiaoli Yu , Jin Liang , Yisheng Peng , Zhonghan Chen

Mangroves are important ecosystems that mediate the movement of organic matter and nutrients from land to the ocean via tidally driven porewater exchange. In the present study, we quantified porewater exchange rates in three 12-year-old Sonneratia apetala plantations distributed along the Pearl River Estuary in southern China by monitoring ²²²Rn in situ during the wet and dry seasons and by measuring the correlations between the porewater exchange rates and the mangrove plantation conditions. The ²²²Rn-derived porewater exchange rates were 385.1–1286.0 Bq m⁻² h⁻¹ in the wet season and 380.6–498.4 Bq m⁻² h⁻¹ in the dry season, which is higher than previous studies. Therefore, it is necessary to sample and monitor within the mangrove forests, or the porewater exchange should be underestimated because of the ignored richer crab burrows. Sediment pH, salinity, and surface water pH had significant relationships with the porewater exchange rate. These results revealed that porewater exchange had seasonal and spatial variation in mangroves and that pH and salinity were the major regulators of mangrove porewater physical exchange.

红树林是重要的生态系统，通过潮汐驱动的孔隙水交换，调节有机物质和营养物质从陆地到海洋的运动。本研究通过在干湿季节对3个12年无瓣海桑人工林进行原位222Rn监测，并测量其孔隙水交换速率与红树林人工林条件的相关性，定量研究了珠江口3个人工林的孔隙水交换速率。222rn衍生的孔隙水交换速率在湿季为385.1 ~ 1286.0 Bq m−2 h−1，干季为380.6 ~ 498.4 Bq m−2 h−1，高于前人研究。因此，有必要在红树林内进行采样和监测，否则可能会因为忽略了更丰富的蟹洞而低估孔隙水交换。沉积物pH、盐度和地表水pH与孔隙水交换速率有显著关系。结果表明，红树林孔隙水交换具有季节和空间差异，pH和盐度是红树林孔隙水物理交换的主要调节因子。

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引用次数: 0

Spatial and temporal changes of water environmental factors and water quality assessment in coastal waters of Jiangsu Province 江苏省近岸水域水环境因子时空变化及水质评价

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-02-08 DOI: 10.1016/j.seares.2025.102570

Zhihao Tang, Yuhan Cao, Qingfeng Jiang

This study aims to explore the temporal and spatial changes in water environmental factors and seawater quality in the near-shore waters of Jiangsu Province. From 2017 to 2023, the single-factor evaluation method and the comprehensive pollution index evaluation method were employed to assess water environmental factors and water quality, and the correlations between water ecological factors were analyzed. The results indicated that the overall levels of dissolved oxygen (DO), chemical oxygen demand (COD), and petroleum were satisfactory. The pollution levels of the main pollutants, inorganic nitrogen (IN) and reactive phosphate (RP), showed a downward trend, and the overall water quality improved after 2019. There was a significant positive correlation between IN and RP, suggesting they might share the same source. In terms of spatial distribution, each factor exhibited certain regularities: DO was higher in the north than in the south; the pH value was higher in the north and south than in the central area; the concentrations of IN and petroleum were higher near the shore; COD was higher in the northern and near-shore regions; and RP was more concentrated in the central and near-shore areas. Moreover, research revealed that seawater quality was influenced by various factors, including natural and human-induced ones. As a unique phenomenon in the Yellow Sea waters, green tides had a disruptive effect on the content changes of water quality factors during their formation and disappearance in different years, particularly on DO. Special events such as coastal industries, the COVID-19 pandemic, and marine projects affected the discharge and input of pollutants. Policies implemented in different periods were crucial for optimizing water quality.

本研究旨在探讨江苏省近岸水域水环境因子及海水质量的时空变化特征。2017 - 2023年，采用单因素评价法和综合污染指数评价法对水环境因子和水质进行评价，分析水生态因子之间的相关性。结果表明：水体溶解氧（DO）、化学需氧量（COD）和石油含量总体较好。2019年后，主要污染物无机氮（IN）和活性磷（RP）污染水平呈下降趋势，水质总体有所改善。IN和RP之间存在显著的正相关，表明它们可能具有相同的来源。在空间分布上，各因子表现出一定的规律性：DO北部高于南部；南北部pH值高于中部；近海岸处溶出素和石油浓度较高；COD在北部和近岸地区较高；RP主要集中在中部和近岸地区。此外，研究表明，海水质量受到多种因素的影响，包括自然因素和人为因素。绿潮作为黄海海域特有的现象，在不同年份对其形成和消失期间的水质因子含量变化具有破坏性影响，尤其是对DO的影响。沿海产业、新冠肺炎疫情、海洋项目等特殊事件影响污染物排放和输入。不同时期实施的政策对优化水质至关重要。

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引用次数: 0

How the invasive algae Rugulopteryx okamurae affect coastal biodiversity? Insights from coastal fish communities of gran Canaria (NE Atlantic Ocean) 入侵藻类巨鸟如何影响沿海生物多样性？来自大加那利岛（大西洋东北部）沿海鱼类群落的见解

IF 2.1 4区地球科学 Q2 MARINE & FRESHWATER BIOLOGY

Journal of Sea Research

Pub Date : 2025-02-03 DOI: 10.1016/j.seares.2025.102568

Xavier Bachot, Rodrigo Riera

Biological invasions present significant threats to global biodiversity and ecosystem functioning. The introduction of invasive species can lead to ecosystem homogenization, altering community dynamics and negatively impacting native species and habitats. Rugulopteryx okamurae, a brown seaweed native to the Northwest Pacific, has rapidly invaded marine ecosystems in Europe, transforming coastal habitats. This study examines the impact of R. okamurae on fish communities across different zones of Gran Canaria, with a particular focus on the invasion gradient. We observed significant variations in fish species abundance and richness across sites, with a noticeable trend towards reduced diversity and a higher prevalence of opportunistic species in areas heavily invaded by R. okamurae. The invasion gradient, rather than typical edge effects, appeared to play a more substantial role in shaping community structure, suggesting that the pervasive spread of R. okamurae leads to habitat homogenization. Ongoing monitoring and adaptive management strategies are crucial to fully understand and mitigate the impacts of R. okamurae on marine biodiversity in Gran Canaria.

生物入侵对全球生物多样性和生态系统功能构成重大威胁。入侵物种的引入会导致生态系统同质化，改变群落动态，并对本地物种和栖息地产生负面影响。okamurrugulopteryx okamurae是一种原产于西北太平洋的棕色海藻，它已迅速入侵欧洲的海洋生态系统，改变了沿海栖息地。本研究考察了冈村r.o okamurae对大加那利岛不同区域鱼类群落的影响，特别关注了入侵梯度。结果表明，各样地鱼类的丰度和丰富度存在显著差异，在冈村田鼠入侵严重的地区，鱼类的多样性呈下降趋势，机会性物种的流行率较高。入侵梯度对群落结构的影响大于典型的边缘效应，表明冈村田鼠的广泛传播导致了生境的同质化。持续监测和适应性管理策略对于充分了解和减轻冈村田径虫对大加那利岛海洋生物多样性的影响至关重要。

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引用次数: 0