Journal of Sea Research最新文献

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Digital economy and economic resilience of marine fisheries in coastal cities: Based on the resource-based theory 数字经济与沿海城市海洋渔业经济弹性:基于资源基础理论
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-07-17 DOI: 10.1016/j.seares.2025.102605
Junjie Wang , Pinghuan Ji , Sanfa Wang
{"title":"Digital economy and economic resilience of marine fisheries in coastal cities: Based on the resource-based theory","authors":"Junjie Wang ,&nbsp;Pinghuan Ji ,&nbsp;Sanfa Wang","doi":"10.1016/j.seares.2025.102605","DOIUrl":"10.1016/j.seares.2025.102605","url":null,"abstract":"<div><div>The marine fisheries economy is an important component of marine economic development. It's meaningful to clarify the influence mechanisms of digital economy for marine ecological protection and sustainable development strategies. We construct the evaluation indicator system of the digital economy and the economic resilience of marine fisheries. This paper discovers that the digital economy can significantly improve the economic resilience of marine fisheries. The results remain robust and reliable after passing various robustness tests and endogeneity tests. We also find that the potential influence channels are industrial structure upgrading (industrial resources dimension), technological innovation (technological resources dimension), and human capital optimization (human resources dimension) based on the resource-based theory. Further, we show that the impact of digital economy on the economic resilience of marine fisheries has a “digital economy output” threshold effect and is moderated by the openness degree. We also discover that the facilitation effect of digital economy is more significant in the sample of the Southern Marine Economic Circle, large-sized and medium-sized cities. We explore the sustainability effect of digital economy. This paper refines the evaluation framework for the economic resilience of marine fisheries and extends the application of resource-based theory to the resilience domain. The research results provide important theoretical and practical insights to optimize the external environment for the economic development of marine fisheries.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102605"},"PeriodicalIF":2.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ecological risk assessment and source apportionment of heavy metals in sediments of a typical marine reservoir in the East China Sea: A case study of xuanmen bay marine reservoir 东海典型海相水库沉积物重金属生态风险评价及来源解析——以宣门湾海相水库为例
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-07-12 DOI: 10.1016/j.seares.2025.102604
Ziming Wang , Yue Ling , Xiaoping Qu , Pengcheng Yao , Wei Wang , Bin Wang
{"title":"Ecological risk assessment and source apportionment of heavy metals in sediments of a typical marine reservoir in the East China Sea: A case study of xuanmen bay marine reservoir","authors":"Ziming Wang ,&nbsp;Yue Ling ,&nbsp;Xiaoping Qu ,&nbsp;Pengcheng Yao ,&nbsp;Wei Wang ,&nbsp;Bin Wang","doi":"10.1016/j.seares.2025.102604","DOIUrl":"10.1016/j.seares.2025.102604","url":null,"abstract":"<div><div>This study explores the distribution, ecological risks, and sources of heavy metals in the sediments of the Xuanmen Bay marine reservoir in eastern China. Surface sediment samples were collected during both the wet and dry seasons in 2023 and analyzed for eight heavy metals: copper (Cu), zinc (Zn), nickel (Ni), chromium (Cr), lead (Pb), cadmium (Cd), mercury (Hg), and arsenic (As), in addition to pH and total organic carbon (TOC). The ecological risk was assessed using the Potential Ecological Risk Index, while source analysis was conducted through Positive Matrix Factorization (PMF).</div><div>The findings reveal that heavy metal concentrations were generally higher during the wet season than in the dry season, with Regions I and II exhibiting the highest levels. Metal correlations were stronger in the wet season, displaying negative correlations with pH and positive correlations with TOC. Although the overall potential ecological risk in the reservoir was low, risk levels were heightened during the wet season, especially for Cd, Cu, and Hg in Region II.</div><div>PMF analysis identified industrial activities as the primary sources of heavy metal pollution, including metal processing, agricultural runoff, electroplating, non-ferrous metal smelting, and oil pollution resulting from the manufacturing of automobiles, machinery, and valve components. Notably, the metalworking and electroplating industries emerged as the most significant contributors to this pollution.</div><div>This study offers valuable insights and data for effectively managing heavy metal pollution in the Xuanmen Bay Marine Reservoir.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102604"},"PeriodicalIF":2.1,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Resilience strategies assessment for inland water transportation systems 内河运输系统弹性策略评估
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-07-09 DOI: 10.1016/j.seares.2025.102600
Haonan Xu , Yuan Lyu , Hao Li
{"title":"Resilience strategies assessment for inland water transportation systems","authors":"Haonan Xu ,&nbsp;Yuan Lyu ,&nbsp;Hao Li","doi":"10.1016/j.seares.2025.102600","DOIUrl":"10.1016/j.seares.2025.102600","url":null,"abstract":"<div><div>As a critical pillar of regional economic development, the resilience level of inland water transportation (IWT) systems fundamentally determines supply chain stability and sustainable regional growth. This study develops an innovative assessment framework for IWT resilience criteria and enhancement strategies through the integration of empowerment methodology, VIKOR technique, and game-theoretic mathematical modeling. Theoretical validation and sensitivity analysis reveal the operational decision-making performance and dynamic variability characteristics of resilience strategies. Employing a three-pronged method, our findings demonstrate that digital transformation, upgrading of waterway facilities, and supply chain collaboration constitute the optimal strategies for enhancing IWT system resilience. This research provides a methodological foundation for resilience-oriented infrastructure planning through its systematic analytical approach.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102600"},"PeriodicalIF":2.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioenrichment of potentially toxic elements in fishes and shrimps of Sepetiba Bay (RJ, SE Brazil) 巴西东南部Sepetiba湾鱼虾体内潜在有毒元素的生物富集
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-07-07 DOI: 10.1016/j.seares.2025.102603
Graziele Arantes Reis , Rubens César Lopes Figueira , Thaise M. Senez-Mello , Tailisi Hoppe Trevizani , Bruna Sanches de Freitas Felipe , Maria Virgínia Alves Martins
{"title":"Bioenrichment of potentially toxic elements in fishes and shrimps of Sepetiba Bay (RJ, SE Brazil)","authors":"Graziele Arantes Reis ,&nbsp;Rubens César Lopes Figueira ,&nbsp;Thaise M. Senez-Mello ,&nbsp;Tailisi Hoppe Trevizani ,&nbsp;Bruna Sanches de Freitas Felipe ,&nbsp;Maria Virgínia Alves Martins","doi":"10.1016/j.seares.2025.102603","DOIUrl":"10.1016/j.seares.2025.102603","url":null,"abstract":"<div><div>The main objectives of this study are to analyze the presence of potentially toxic chemical elements (PTEs) in fish and shrimp from Sepetiba Bay (coastal region of the State of Rio de Janeiro, SE Brazil), compared to results obtained in previous studies and to discuss the risks of consuming contaminated food for humans. Sepetiba Bay is a coastal system heavily contaminated by PTEs. Concentrations of As, Cd, Co, Cr, Cu, Ni, Pb, Se, and Zn were analyzed in tissues and organs of crustaceans (shrimp, <em>Farfantepenaeus subtilis</em>) and bony fishes (<em>Cynoscion leiarchus, Cynoscion acoupa, Centropomus undecimalis, Plagioscion squamosissimus, Selene setapinnis,</em> and <em>Caranx hippos</em>) using an Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES). Copper was the element that reached the highest levels among the analyzed species/tissues/organs, followed by Zn &gt; Se &gt; As&gt;Cd &gt; Pb &gt; Cr &gt; Ni &gt; Co. Still, Zn, Cu, and Cr were present in all analyzed samples. For most species, the organs with the highest levels of PTEs were the heart and liver. The statistical results showed positive and significant correlations between the PTE concentrations of the analyzed species/tissues/organs. The Bioenrichment Factors (BF: the ratio between the levels of PTEs in the analyzed tissues/organs and the limits defined by the regulatory agencies) show that there are higher levels of PTEs than those allowed by law in the analyzed species/tissues/organs (descending order number of times higher): Cr (71), Se (35), Pb (32), Cu (23), As (13), Cd (10), Zn (7), and Co (5). For example, Cr showed relatively high BF values: <em>C. acoupa</em> (heart: 70 times; gills 9 times), <em>C. undecimalis</em> (heart 17 <em>times</em>), <em>C. leiarchus</em> (gills 13 times; heart 11 times; liver 9 times); gonads 8 times), <em>C. undecimalis (</em>gills 12 <em>times</em>), <em>P. squamosissimus</em> (gills 10 <em>times</em>) and <em>F. subtilis</em> (cephalothorax 9 times; carapace 7 times; muscle 7 times). The heart of <em>S. setapinnis</em> (35 times)<em>,</em> the liver of <em>P. squamosissimus</em> (23 times), and the muscle of <em>F. subtilis</em> (4 times) showed Se enrichment higher than the amount authorized by Brazilian legislation (Anvisa). The gills of <em>P. squamosissimus</em> (32 times) and the gonads of <em>C. leiarchus</em> (5 times) and <em>C. acoupa</em> (4 times) indicated considerable bioaccumulation values for Pb enrichment, above the FAO/WHO (Food and Agriculture Organization/World Health Organization) limit. Therefore, this study shows a potential risk of metal contamination in the population that eats fish in the Sepetiba region. Fish is part of the traditional diet of the population living around Sepetiba Bay, primarily among low-income families who dominate the area. The results of this study suggest the need to monitor seafood contamination in this region.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102603"},"PeriodicalIF":2.1,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic gradient orientation and multi-scale fusion network for ocean front detection 基于动态梯度定向和多尺度融合网络的海锋探测
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-07-03 DOI: 10.1016/j.seares.2025.102601
Xiang Wan , Lei Zhang , Xiaodong Ma , Weishuai Xu , Qiyun Chen , Rui Zhao , Maoyuan Zeng
{"title":"Dynamic gradient orientation and multi-scale fusion network for ocean front detection","authors":"Xiang Wan ,&nbsp;Lei Zhang ,&nbsp;Xiaodong Ma ,&nbsp;Weishuai Xu ,&nbsp;Qiyun Chen ,&nbsp;Rui Zhao ,&nbsp;Maoyuan Zeng","doi":"10.1016/j.seares.2025.102601","DOIUrl":"10.1016/j.seares.2025.102601","url":null,"abstract":"<div><div>As a common and significant physical phenomenon in the global ocean system, ocean fronts have profound impacts on marine environments, ecosystems, and even global climate. Traditional methods for detecting ocean fronts typically use gradient thresholds to distinguish image pixels. When background noise is too high, excessive noise gradients can lead to ambiguous recognition results. Currently, widely used deep learning methods suffer from issues such as a lack of interpretability and insufficient multi-scale feature fusion during the detection process of ocean fronts. To address these problems, this paper proposes a Dynamic Gradient Orientation and Multi-scale Fusion Network, which integrates physical priors with deep learning techniques to achieve higher precision in ocean front detection. Using 30 years (1993–2022) of high-resolution sea surface temperature data for the Northwest Pacific Kuroshio Sea area, we constructed a dynamic gradient orientation angle constraint mechanism (DACM) and a multi-scale gradient fusion mechanism (MSGF). To further enhance the model's interpretability, we improved the detection framework based on you only look once version 11 (YOLOv11), introducing a cross-scale Transformer, dynamic snake convolution, and scale-aware feature fusion modules, making it suitable for ocean front detection. The experimental results show that our method achieved an accuracy and precision of 84.1 % and 79 %, respectively, on the testing set. The ablation experiment verified that the multi-scale fusion mechanism increased the weak front recall rate by 20 %. The results provide a feasible scheme for the deep integration of physical and data-driven ocean front detection, which has certain application value for the analysis of dynamic ocean processes and climate change research.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102601"},"PeriodicalIF":2.1,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance of the different parameterization of depth-induced breaking during a typhoon 台风期间不同参数化对深度诱发断裂的影响
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-07-01 DOI: 10.1016/j.seares.2025.102602
Yuyi Hu , Weizeng Shao , Xingwei Jiang , Guanyin Lin
{"title":"Performance of the different parameterization of depth-induced breaking during a typhoon","authors":"Yuyi Hu ,&nbsp;Weizeng Shao ,&nbsp;Xingwei Jiang ,&nbsp;Guanyin Lin","doi":"10.1016/j.seares.2025.102602","DOIUrl":"10.1016/j.seares.2025.102602","url":null,"abstract":"<div><div>This study investigates typhoon-induced wave dynamics using the WAVEWATCH-III (WW3) model, with a focus on evaluating eight depth-induced wave breaking parameterizations under typhoon conditions: BJ78, NE87, RU03, GO10, SA15, LS17, CH19, and TG83. The wind forcing field for WW3 is constructed by assimilating wind products from Haiyang-2 (HY-2), the Soil Moisture Active–Passive (SMAP) radiometer and the Advanced Microwave Scanning Radiometer-2 (AMSR2). The model simulated waves during Typhoons Lekima (2019) and Yagi (2024) incorporating sea surface current speed and sea surface level data from the Copernicus Marine Environment Monitoring Service (CMEMS). Validation against HY-2B satellite significant wave height (SWH) measurements demonstrates that the LS17 outperforms other schemes in shallow coastal regions (&lt; 200 m water depth), achieving optimal metric with a root mean square error (RMSE) of 0.5109 m and a correlation coefficient (Cor) of 0.8748. Comparison with buoy reveals maximum SWH discrepancy of 0.3 m between LS17 and BJ78 in shallow waters (i.e., 13 m water depth). This study evaluates the performance of two wave-breaking parameterizations (BJ78 and LS17) in WW3 simulations against HY-2 observations, with a focus on Super Typhoon Yagi (2024). Results indicate that both schemes perform comparably in deep waters (200–80 m depth), showing minimal deviations (∼0.5 m). However, near the coast (80–0 m), BJ78 exhibits significant underestimation (−2 m bias), while LS17 maintains higher accuracy. The superior performance of LS17 in shallow waters underscores the critical role of wave-breaking parameterization selection for reliable nearshore wave modeling, especially during extreme events such as typhoons.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102602"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Macrozooplankton diversity and distribution off South Orkney Islands 南奥克尼群岛大型浮游动物的多样性和分布
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-06-22 DOI: 10.1016/j.seares.2025.102598
Torborg E. Rustand , Astrid F. Rasmussen , Ludvig A. Krag , Anne Gro Vea Salvanes , Bjørn A. Krafft
{"title":"Macrozooplankton diversity and distribution off South Orkney Islands","authors":"Torborg E. Rustand ,&nbsp;Astrid F. Rasmussen ,&nbsp;Ludvig A. Krag ,&nbsp;Anne Gro Vea Salvanes ,&nbsp;Bjørn A. Krafft","doi":"10.1016/j.seares.2025.102598","DOIUrl":"10.1016/j.seares.2025.102598","url":null,"abstract":"<div><div>Zooplankton organisms are considered ecological bio-indicators used to monitor the sustainability and health of marine ecosystems. Climate monitoring shows that the western part of the Atlantic sector of the Southern Ocean is undergoing warming over the second half of the twentieth century. This study describes the macrozooplankton composition in the upper 200 m water column of the South Orkney Islands shelf, slope, and offshore areas during the austral summer of February 2016. In total, 24 taxa were identified (15 determined to species level) from 22 sampling stations. The dominating species in catch weight were <em>Euphausia superba</em> (43.4 %) and <em>Salpa thompsoni</em> (42.7 %). Lower species diversity was associated with the offshore stations while higher species diversity was found on the shelf and slope areas. Spatial distribution of biota was examined in relation to temperature, salinity, bathymetry, and surface chlorophyll <em>a</em> using a non-metric multidimensional scaling (NMDS) analysis. A hierarchical clustering revealed five distinct groups: two dominated by <em>S. thompsoni</em>, linked to offshore waters, two groups with mixed characteristics, greater diversity and located over the shelf and slope, and a group dominated by <em>E. superba</em>. This study establishes a baseline for long-term monitoring of macrozooplankton at the South Orkney Islands, aiding future assessments of species composition and distribution in response to environmental change.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102598"},"PeriodicalIF":2.1,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144491693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A forecasting method of optimal search area for Ulva prolifera green tide 藻绿潮最佳搜索区域的预测方法
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-06-21 DOI: 10.1016/j.seares.2025.102599
Lingjuan Wu , Juan Huang , Ruichen Cao , Jiangling Xu , Jie Feng , Yifei Li , Chao Yuan
{"title":"A forecasting method of optimal search area for Ulva prolifera green tide","authors":"Lingjuan Wu ,&nbsp;Juan Huang ,&nbsp;Ruichen Cao ,&nbsp;Jiangling Xu ,&nbsp;Jie Feng ,&nbsp;Yifei Li ,&nbsp;Chao Yuan","doi":"10.1016/j.seares.2025.102599","DOIUrl":"10.1016/j.seares.2025.102599","url":null,"abstract":"<div><div>Since 2008, the on-site salvage of floating <em>Ulva prolifera</em> patches at sea has been a crucial measure in mitigating the adverse effects of the Yellow Sea green tide. A timely and accurate identification of the search area is crucial for salvage boats to handle reported floating <em>U. prolifera</em> patches effectively. Traditional deterministic drift forecasting methods do not adequately address the uncertain behavior of floating <em>U. prolifera</em> patches. This inadequacy arises from various environmental and biological complexities. In this study, we proposed a Monte Carlo probabilistic drift forecasting model by introducing random walk, and constructed a search area forecasting method based on optimal search theory. This method was applied to the on-site salvage of floating <em>U. prolifera</em> patches in June 2023. The optimal search area is more efficient and effective than traditional methods, reducing the search area by more than an order of magnitude. This method offers decision-makers valuable additional information, such as probability distribution of the search area, thereby enhancing salvage efficiency and ultimately mitigating resource waste.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102599"},"PeriodicalIF":2.1,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface swarms of the lanternfish Myctophum punctatum associated to dolphin presence 水面上的灯笼鱼群与海豚的存在有关
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-06-13 DOI: 10.1016/j.seares.2025.102597
M.P. Olivar , C. López-Pérez , A. Sabatés , A.N. Sarmiento-Lezcano
{"title":"Surface swarms of the lanternfish Myctophum punctatum associated to dolphin presence","authors":"M.P. Olivar ,&nbsp;C. López-Pérez ,&nbsp;A. Sabatés ,&nbsp;A.N. Sarmiento-Lezcano","doi":"10.1016/j.seares.2025.102597","DOIUrl":"10.1016/j.seares.2025.102597","url":null,"abstract":"<div><div>The neustonic layer of the ocean are visited at night time by a large number of organisms for feeding or breeding. This study reports large aggregations of the myctophid <em>Myctophum punctatum</em> at night in the strictly sea surface layer of the water column and the co-occurrence of dolphins swimming and probably feeding on these fish. The study was based on fish captures obtained from neuston hauls and dolphins observations in the Alboran Sea (western Mediterranean), and in oceanic waters off Lisboa (temperate Atlantic). Data on the abundance, biomass, size frequency distributions and Gonadosomatic Index of <em>M. punctatum</em> were analysed, and the relevance of these high aggregations both for the biology of the species and as a source of prey for the co-occurring dolphins is discussed.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102597"},"PeriodicalIF":2.1,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Baseline zinc levels and monitoring implications in sediments of the Changhua offshore wind farm region 彰化海上风电场区沉积物中锌基线水平及其监测意义
IF 2.1 4区 地球科学
Journal of Sea Research Pub Date : 2025-06-06 DOI: 10.1016/j.seares.2025.102596
Pei-Hsuan Wu , Yen-Kung Hsieh , Wei-Shan Chou , Ping Chen , Jin-Li Yu , Chao-Kai Kang
{"title":"Baseline zinc levels and monitoring implications in sediments of the Changhua offshore wind farm region","authors":"Pei-Hsuan Wu ,&nbsp;Yen-Kung Hsieh ,&nbsp;Wei-Shan Chou ,&nbsp;Ping Chen ,&nbsp;Jin-Li Yu ,&nbsp;Chao-Kai Kang","doi":"10.1016/j.seares.2025.102596","DOIUrl":"10.1016/j.seares.2025.102596","url":null,"abstract":"<div><div>This study integrates data on the content of zinc (Zn) in the sediment during the construction of wind farms in the Changhua coastal area, and conducted two seasons of sediment surveys surrounding the Changhua offshore wind farms (OWFs). The survey results were compared with historical data from previous monitoring efforts in the Changhua offshore wind farm region. From 6 environmental impact assessments of Changhua OWFs, sedimentary Zn contents were below the effects range-median (ERM; 410 mg/kg) of the US National Oceanic and Atmospheric Administration (NOAA) standards. Our results showed that the Zn concentration in the sediment of the two sampling stations in this study was lower than the effect range low (ERL; 150 mg/kg) threshold. Compared among the sediments of CH-1 and CH-2 sites and other OWFs, the Zn concentrations were significantly lower than those of the Zhong Neng offshore wind farm, Zhang Fang offshore wind farm, and Haixia I/II offshore wind farm. In the spatial background, the distribution of Zn concentration in the southern area along the Changhua coastal sediments was higher than that in the northern area. The Mann-Kendall trend test analysis indicated a decreasing trend in the time series. Results of Geo-accumulation index (I <sub>geo</sub>) and potential ecological risk (PERI) demonstrated that the sediment has low ecological potential risk. This study established baseline data on Zn concentrations in the sediment of the Changhua coastal area. The proposed alert value for Zn concentration in the Changhua coastal area environment monitoring in sediment is 83.6 mg/kg.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102596"},"PeriodicalIF":2.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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