Regional Studies in Marine Science最新文献

{"title":"Arsenic, cadmium, copper and zinc in two marlin species from the southern Gulf of California: Risk assessment and variations with environmental factors","authors":"Jorge Ruelas-Inzunza ,&nbsp;Brigitte Gil-Manrique ,&nbsp;María Mercedes Meza-Montenegro ,&nbsp;Sofía Ortega-García ,&nbsp;Leticia García-Rico ,&nbsp;Ana Lilia López-Duarte ,&nbsp;Pamela Spanopoulos-Zarco ,&nbsp;Nydia Zamora-Arellano ,&nbsp;Brisa Vega-Sánchez","doi":"10.1016/j.rsma.2025.104301","DOIUrl":"10.1016/j.rsma.2025.104301","url":null,"abstract":"<div><div>This study assesses the health risks of As, Cd, Cu, and Zn in 109 specimens of <em>Makaira nigricans</em> and 461 specimens of <em>Kajikia audax</em> from the Gulf of California between 2007 and 2015. Analysis were made by inductively coupled plasma<img>optical emission spectrometry (ICP<img>OES). Anomalies of SST and Chl-<em>a</em> were obtained from composite satellite images. The ONI values were obtained from the NOAA. Multivariate methods using Euclidean distances were used to analyze the relationship of elemental concentrations with species variables and environmental factors using Principal Components Analysis (PCA) and hierarchical agglomerative clustering. Average median concentrations (µg g^-1 wet weight) in <em>M. nigricans</em> were Zn (6.480) &gt; As (0.405) &gt; Cu (0.316) &gt; Cd (0.044), and in <em>K. audax</em> Zn (7.228) &gt; As (1.445) &gt; Cu (0.355) &gt; Cd (0.099). As concentrations peaked in 2012 (<em>M. nigricans</em>) and 2013 (<em>K. audax</em>), while Cd levels declined in 2014–2015 (<em>K. audax</em>). In <em>M. nigricans</em>, Cu concentrations were significantly lower in 2014 while in <em>K. audax</em> Cu levels were significantly lower in 2014. With respect to Zn, concentrations of <em>K. audax</em> were significantly higher in 2012 and 2013. Total hazard quotients (HQ) values were below risk thresholds. In <em>M. nigricans</em> Zn increased significantly with Cu, As and Cd and Cu with As and Cd. In <em>K. audax</em> Cu increased with As and Cd, Zn increased with Cu and As with Cd. Elemental concentrations varied with Chl-<em>a</em>; Cd levels increased in <em>M. nigricans</em>, while Cu and As levels increased in <em>K. audax</em>. In <em>M. nigricans</em> Cu increased with LJFL and total weight. In <em>K. audax</em>, As, Cd and Zn increased with LJFL and total weight. Correlations were confirmed by PCA. Cluster and SIMPROF analysis revealed that Cd, Cu and Zn had similar patterns in both species; however, As was significantly higher in the striped marlin.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104301"},"PeriodicalIF":2.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How different are the nematode communities between the two main habitats of a mangrove forest? Insights from a subtropical mangrove forest","authors":"Demei Zhang ,&nbsp;Youchen Yang ,&nbsp;Ye Zhang ,&nbsp;Er Hua ,&nbsp;Fanghong Mu","doi":"10.1016/j.rsma.2025.104300","DOIUrl":"10.1016/j.rsma.2025.104300","url":null,"abstract":"<div><div>Sediment (inbenthic habitat) and fallen leaf (epibenthic habitat) are two distinguishable habitats inside the mangrove forests. In September 2020, sediment samples and leaf litter were collected from a subtropical mangrove forest, namely the Futian Mangrove Nature Reserve, in China. Subsequently, free-living marine nematodes were investigated to assess differences between the two habitats, and understand the important factors shaping nematode community in the mangrove ecosystem. Leaf litter were collected and divided into three decay degrees to reveal the successive changes of nematodes with leaf litter degradation. The results showed that nematode community on fallen leaves was characterized by the abundant Monhysteridae nematodes and the non-selective deposit feeders, which was different from the community in sediments where Linhomeidae and Chromadoridae nematodes and selective deposit feeders dominated. In general, bacterivores dominated at both habitats. Spatial variations of nematode community structure and diversity were observed at both habitats. TOM appeared as the significant factor affecting nematode community in the sediment, exhibited a negative correlation with nematodes diversity; while the spatial variations in nematodes on the fallen leaves were related to the concentrations of condensed tannin of the leaf litter. In addition, the spatial differences in nematode abundance and species composition observed in this study also were linked to differences in mangrove tree species. A subtle increase in the relative abundance of <em>Diplolaimelloides</em> and <em>Diplolaimella</em> with increasing degradation of leaves was observed, which might be due to their characteristics of opportunistic colonizers, the continuous changes in the concentrations of condensed tannin and/or microbial activity of the leaf litter.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104300"},"PeriodicalIF":2.1,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phenology of fish movements between a mediterranean lagoon and the sea: Insights from acoustic camera and fishers’ local ecological knowledge","authors":"Iona Le Gallou ,&nbsp;Eléonore Cambra ,&nbsp;Elsa Amilhat ,&nbsp;Elisabeth Faliex ,&nbsp;Marion Verdoit-Jarraya ,&nbsp;Raphaël Lagarde","doi":"10.1016/j.rsma.2025.104293","DOIUrl":"10.1016/j.rsma.2025.104293","url":null,"abstract":"<div><div>Studying fish movement is an essential and complex task that is necessary to improve our understanding of fish ecology. The present study simultaneously used Acoustic Camera Videos (ACV) and professional fishers’ Local Ecological Knowledge (LEK) to describe fish movements between a lagoon and the sea. Results showed consistency and complementarity between ACV and fishers’ LEK. Three size groups were identified in the fish community based on ACV data: &lt; 15 cm, 15–35 cm, and &gt; 35 cm. Fishers reported that fish &lt; 15 cm could either be juveniles or adult individuals of small species, those 15–35 cm were mainly Gilthead seabreams (<em>Sparus aurata</em>) and those &gt; 35 cm were mainly European seabass (<em>Dicentrarchus labrax</em>). The main periods during which fish entered into the lagoon (February-April) and exited to the sea (September-November) detected on ACV data matched fishers’ LEK for the Gilthead seabream and the European seabass. Daily movements of fish &lt; 15 cm and &gt; 35 cm showed asynchronous phenology, the former being more abundant during night-time hours, and the latter during the afternoon. This study highlights the additional benefits of combining ACV and fishers’ LEK to study fish movement phenology, and thus presents new research opportunities.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104293"},"PeriodicalIF":2.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Life cycle assessment for environment-friendly ferry service: A case study between South Korea and China","authors":"Junghwan Choi ,&nbsp;Kanghyun Seo ,&nbsp;Sangseop Lim","doi":"10.1016/j.rsma.2025.104297","DOIUrl":"10.1016/j.rsma.2025.104297","url":null,"abstract":"<div><div>The major ports in the three provinces of China’s Northeast serve as crucial logistic hubs for inland cargo from Northeast China and the Far East, and are integral parts of the Maritime Silk Roads. Given the geographic, economic, cultural, and geopolitical significance of Northeast China, South Korea has identified this area as vital. Since 2013, ferry routes have been established, with three of the ten routes originating from the Northeast three provinces of China and terminating in the Incheon Port. This study analyzes the environmental impact of car ferries operating between South Korea and China using Life Cycle Assessment method. The findings indicate that transitioning from Heavy Fuel Oil to Liquefied Natural Gas serves as an effective transitional fuel for the decarbonization of shipping. The study highlights the necessity for technical and policy cooperation to facilitate the construction and deployment of eco-friendly car ferries, including promoting the conversion of South Korea-China ferry routes into green shipping corridors through collaborative efforts such as the South Korea-China Maritime Transportation Meeting. Thus, the study proposes mutual policy and financial support to enable the construction of eco-friendly car ferries in China’s Northeast three provinces, where existing vessels are over 25 years old.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104297"},"PeriodicalIF":2.1,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatiotemporal dynamics of ammonium monooxygenase (amoA) genes in sediments of the aquaculture area in the Yellow Sea Cold Water Mass","authors":"Shuting Li ,&nbsp;Li Li ,&nbsp;Xiangli Tian ,&nbsp;Qinfeng Gao ,&nbsp;Shuanglin Dong","doi":"10.1016/j.rsma.2025.104298","DOIUrl":"10.1016/j.rsma.2025.104298","url":null,"abstract":"<div><div>Ammonia oxidation is a fundamental process in the marine nitrogen cycle, driving the transformation of ammonia into nitrate and playing a crucial role in maintaining nitrogen balance in deep-sea ecosystems. Ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) are kay contributors to this process; however, their dynamics in deep-sea aquaculture environments remain poorly understood. This study investigated the spatiotemporal variations in the diversity, community composition, and abundance of archaeal and bacterial <em>amoA</em> genes in sediments from Yellow Sea Cold Water Mass aquaculture area. Results revealed that AOB exhibited more OTUs as well as higher diversity and richness than AOA. Most AOA and AOB were classified into the genera <em>Nitrosopumilus</em> and <em>Nitrosomonas</em>, respectively. The highest abundance of <em>amoA</em> gene copies was observed in December. Although bioindicators for both AOA and AOB communities were detected across all sampling sites and times, none of them could be identified as aquaculture-derived indicators. Neutral community model indicated that AOB community assembly was primarily shaped by stochastic processes (R² = 88.6 %), whereas the AOA community was more influenced by environmental factors (R² = 61.3 %). Key environmental drivers, including bottom water temperature and sediment carbon content, significantly affected archaeal <em>amoA</em> gene abundance and AOA indicator abundance. These findings provide new insights into the distinct ecological roles and assembly mechanisms of AOA and AOB communities in the YSCWM. Understanding these microbial dynamics is essential for evaluating nitrogen cycling stability in deep-sea aquaculture environments and developing sustainable management strategies for marine aquaculture in the YSCWM.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104298"},"PeriodicalIF":2.1,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Blockchain adoption strategy and contract mechanism design in a maritime supply chain under cap-and-trade policy","authors":"Lin Zhao","doi":"10.1016/j.rsma.2025.104296","DOIUrl":"10.1016/j.rsma.2025.104296","url":null,"abstract":"<div><div>This study constructs a maritime supply chain consisting of a port company and a shipping company under cap-and-trade policy and cargo owner’s low-carbon transportation preference. The port company may lack of the shipping company’s private carbon emission reduction efforts cost information. We first establish two scenarios, without blockchain technology adoption scenario and with blockchain technology adoption scenario, and derive the equilibrium decisions. Next, we respectively analyze the effects of the shipping company’s carbon emission reduction efforts cost (variation), cargo owner’s low-carbon transportation preference, the unit cost of blockchain technology adoption on the equilibrium decisions. Then, we compare two scenarios and identify the conditions of blockchain technology adoption in the maritime supply chain. Finally, with the target of improving the profitability and sustainability of the maritime supply chain after adopting blockchain technology, we propose several coordination contracts, such as the cost sharing and two-part tariff contracts, to achieve Pareto improvement for the port company, the shipping company, and the environment.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104296"},"PeriodicalIF":2.1,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mercury accumulation by diatoms in the ice covered Partizanskaya River Estuary (Primorsky Territory, Russia) during the winter bloom","authors":"Kirill Aksentov,&nbsp;Viktor Kalinchuk,&nbsp;Pavel Semkin","doi":"10.1016/j.rsma.2025.104294","DOIUrl":"10.1016/j.rsma.2025.104294","url":null,"abstract":"<div><div>The processes that occur with mercury under the ice covering different water areas are among the least studied ones in the global mercury cycle. In the winter of 2016, we measured total and dissolved mercury concentrations in water, total mercury levels in suspended particulate matter, determined phytoplankton species, and measured the main hydrological parameters (water temperature, salinity, chlorophyll a concentration) in the ice-covered Partizanskaya River Estuary (Primorsky Territory, Russia). The data obtained indicate the mercury accumulation by diatoms under the ice during the bloom. We assume that a similar process occurs in the Arctic Ocean, leading to the redistribution of mercury species in water and the accumulation of dissolved gaseous elemental mercury under the ice.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104294"},"PeriodicalIF":2.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tire wear particles and leachable compounds: Occurrence and fate in the aquatic environment","authors":"Fitri Budiyanto ,&nbsp;Mohamed A. Ghandourah ,&nbsp;Mohamed I. Orif ,&nbsp;Amr A. El-Maradny ,&nbsp;Yasser A. Shaban ,&nbsp;Aasim M. Ali ,&nbsp;Walied M. Alarif","doi":"10.1016/j.rsma.2025.104291","DOIUrl":"10.1016/j.rsma.2025.104291","url":null,"abstract":"<div><div>Tire wear particles (TWPs) have emerged as significant contaminants in the aquatic environment, posing risks to local flora and fauna. Tire waste management methods like reuse and pyrolysis offer benefits but raise environmental concerns, including leachate and toxic emissions. TWPs accumulate in landfills and enter aquatic systems through atmospheric fallout and runoff. TWPs substantially contribute to the presence of synthetic polymers in the ocean, with emissions making up a notable proportion. The primary concern of TWPs lies in the leaching of chemical additives and their transformation products. A prominent example is the highly toxic quinone transformation product of <em>N-</em>(1,3-dimethylbutyl)-<em>N'</em>-phenyl-p-phenylenediamine (6PPD), a globally prevalent tire antioxidant. 6PPD-quinone was identified using Effect-Directed Analysis (EDA), a promising strategy for the identification of unknown toxic chemicals. This review explores current knowledge on the occurrence and fate of these hazardous TWPs and their leachates, analytical methods, their potential toxicity, and strategies for mitigation. As of the time this review was written, no standardized protocol has been universally adopted for tire wear particles (TWP) and their leachate collection, isolation, and analysis. Therefore, establishing standardized methodologies is essential to ensure consistency and comparability across studies. Additionally, research on TWP and its environmental impacts in developing countries remains limited. This lack of data poses a significant challenge in addressing TWP contamination in aquatic environments within these regions.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104291"},"PeriodicalIF":2.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144272375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modulating population dynamics and metal bioaccumulation in Scrobicularia plana (da costa, 1778) through estuarine ecosystem management","authors":"Chaymae Najimi ,&nbsp;Essediya Cherkaoui,&nbsp;Mohamed Khamar","doi":"10.1016/j.rsma.2025.104295","DOIUrl":"10.1016/j.rsma.2025.104295","url":null,"abstract":"<div><div><em>Scrobicularia plana</em>, a key species in estuarine ecosystems, was studied to understand its adaptation and population dynamics in response to environmental changes driven by urban development and industrialization. This research, conducted in the Bouregreg estuary, aligned with a large-scale remediation project launched in 2006 to mitigate pollution and restore ecosystem health. This study evaluates the long-term ecological responses of <em>S. plana,</em> addressing gaps in understanding its population dynamics, morphometric adaptations, and heavy metal bioaccumulation under sustained anthropogenic pressures and management interventions. Our results show high juvenile recruitment from summer to winter, creating a juvenile-dominated population. This demographic shift coincided with a reduction in asymptotic shell length from 50 mm in 1987–44 mm in 2022, suggesting phenotypic adaptations to altered environmental conditions potentially linked to climate change. Morphometric analysis showed isometric growth and a shift to elongated shells, likely enhancing feeding and burrowing efficiency under environmental pressures. Heavy metal levels in <em>S. plana</em> declined significantly from pre-project levels but remained concerning, particularly Cadmium (Cd), which reached 5.01 mg/kg dw, exceeding regulatory limits and significantly correlating with the condition index, indicating a complex interplay between pollution and biological cycles. Essential metals (Zinc (Zn), and Copper (Cu)) accumulated more than non-essential ones (Chromium (Cr), Cadmium (Cd), and Vanadium (V)), with distinct seasonal peaks (e.g., Zn peaked at 260.73 mg/kg dw in summer), underscoring the need for continued monitoring to manage localized contamination sources. These findings highlight <em>S. plana</em>’s resilience and the study’s significance in revealing the links between urban management, ecosystem recovery, and species adaptation. By deepening our understanding of estuarine responses to restoration, this research provides crucial insights for future coastal management and conservation.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104295"},"PeriodicalIF":2.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Submarine groundwater discharge along India’s shorelines: a systematic review of recent studies and sustainability management approach","authors":"Jesuraja Kamaraj ,&nbsp;Upendra Badimela ,&nbsp;Nidhin Kunnavil ,&nbsp;Jeenu Mathai ,&nbsp;Sreelash Krishnan ,&nbsp;Reji Srinivas ,&nbsp;Selvam Sekar","doi":"10.1016/j.rsma.2025.104292","DOIUrl":"10.1016/j.rsma.2025.104292","url":null,"abstract":"<div><div>In India, coastal communities face significant groundwater issues that have wide-ranging implications for agriculture, drinking water supply, and environmental sustainability. These issues are due to population growth, urbanization, over-extraction, depleting water table, deteriorating water quality, lack of regulation and monitoring, climate change impact, and deficiency of groundwater sources. Submarine Groundwater Discharge (SGD) is widely acknowledged as a crucial component of the groundwater sources and the hydrological water cycle, and it is a key source of dissolved chemicals entering marine ecosystems, particularly in semi-arid regions. This research methodically reviews 54 scholarly published articles on SGD in India’s shorelines, covering various aspects over the last 24 years (from 2001 to 2024). Recently, the scientific community in India has focused on SGD studies exploring various topics such as identification, quantification, and pollution (nutrients, heavy metals, and microplastics) based research. This review aims to provide the first approach to exploring detailed information about the recent development of SGD studies in India, including i) basic characteristics and demand of groundwater sources related to SGD in land and marine environments ii) studies conducted about the identification of SGD iii) studies carried on the quantification of SGD on shorelines and estuaries with adopted methodologies for assessing SGD iv) recent advances of SGD on marine and aquatic ecosystem degradation v) summarizing the additional knowledge about important SGD knowledge shortcomings along with research requirements on particular India’s shoreline and estuaries. According to the SGD literature, approximately 48 % (around 3600 km) of India’s total coastal line of 7516.6 km has been studied, with a primary focus on Gujarat, West Bengal, and some parts of other coastal states. The highest SGD flux was recorded at Beejadi in Karnataka on the west coast, measuring 7.54 m/day during the pre-monsoon and 5.72 m/day in the post-monsoon. In contrast, Chandipur in Odisha on the east coast recorded fluxes of 3.6 m/day and 5.9 m/day during the pre-monsoon and post-monsoon, respectively. This research highlights the findings of published SGD studies along India’s coastline, provides background on the research gaps and knowledge, advancement in methodologies, and recommends the creation of a regional groundwater governance strategy.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"89 ","pages":"Article 104292"},"PeriodicalIF":2.1,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144272374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}