Regional Studies in Marine Science最新文献

{"title":"Exploring the spatial and temporal dynamics of zooplankton assemblages in the Seomjin estuary and Gwangyang Bay, South Korea: A comparative analysis of Sequence Assignments Species (SAS) and Morphological Species Identification (MSI)","authors":"Joo-Yeon Kang ,&nbsp;Thodhal Yoganandham Suman ,&nbsp;Won-Seok Kim ,&nbsp;Jae-Won Park ,&nbsp;Ji-Hoon Kim ,&nbsp;Ji-Won Park ,&nbsp;Ihn-Sil Kwak","doi":"10.1016/j.rsma.2025.104201","DOIUrl":"10.1016/j.rsma.2025.104201","url":null,"abstract":"<div><div>Estuarine and coastal ecosystems are dynamic environments with strong environmental gradients that influence zooplankton community structure and distribution. Comprehending these patterns is essential for ecosystem management and biodiversity evaluation; however, traditional morphological identification consistently underestimates species diversity, as demonstrated by our comparative analysis. This research examined the structure of zooplankton communities and the distribution of copepod species along an estuarine-marine gradient in the Seomjin estuary and Gwangyang Bay, employing both Sequence Assignments Species (SAS) and Morphological Species Identification (MSI) methodologies. We collected environmental variables and zooplankton samples from six stations in May and September 2023. The Copepoda group constituted 55.1 % of the zooplankton community, with Ciliophora at 31.6 %, Meroplankton at 8.3 %, and Others at 5.0 %. SAS analysis revealed the presence of 31 copepod species distributed among three orders, exhibiting similarity values between 97.03 % and 99.29 %. We observed strong spatial and temporal variations in community structure and diversity indices. Copepod abundance significantly increased in May, especially at bay stations, whereas September showed more uniform distribution. Environmental analysis revealed that salinity and water temperature were primary drivers of species distribution, resulting in distinct species composition between estuarine and bay environments. Species diversity (H′) was consistently greater in SAS (0.69–2.92) than in MSI (0.47–1.74), with both methods indicating elevated diversity in May. NMDS analysis revealed distinct spatial separation between estuarine and bay communities, indicating the impact of environmental variables on community structure. The findings improve our understanding of zooplankton ecology in transitional waters. Both methods offer valuable insights; however, SAS consistently exhibited greater accuracy, evidenced by higher detection rates, more apparent community differences, and stronger environmental correlation, indicates its better performance for biodiversity assessment in complex estuarine ecosystems.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104201"},"PeriodicalIF":2.1,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873479","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":"Cetaceans and vessels overlap assessment within a migration corridor using passive acoustic monitoring","authors":"Haide Cruz-Villagran,&nbsp;Braulio Leon-Lopez,&nbsp;Aurora Paniagua-Mendoza,&nbsp;Eduardo Romero-Vivas","doi":"10.1016/j.rsma.2025.104203","DOIUrl":"10.1016/j.rsma.2025.104203","url":null,"abstract":"<div><div>Migratory cetaceans travel from feeding grounds in summer to mating and calving grounds in winter, and consequently, significant efforts are made to protect those grounds. However, areas along the migration corridors also play a significant role in cetacean ecology since many important activities occur in between those grounds. The increase of anthropogenic pressure in those intermediate areas creates the need to assess cetacean habitat use and overlap with human activities. The Cerralvo Channel in the Gulf of California, Mexico is a clear example of such areas. In this study, bimonthly passive acoustic monitoring during the cold season (November 2022 -May 2023) provided information on the presence, diel-pattern and vessel and cetacean overlap in the area. Migratory blue whales, fin whales, Bryde’s whales, sperm whales and dolphins (Delphinidae) were detected. Based on the type of calls it was found that besides transit, blue whales might also use the area for breeding and feeding. For the other species, important activities such as feeding, socializing and probably breeding also take place in the channel. Out of 200 h recordings, vessels were detected during 91 h, cetaceans during 80 h, and both overlapped during 30 h. Although vessels were detected for 45.5 % of the time of all recordings, the overlap time was relatively low (15 %). However, given the increase in tourist activities in the area, continuous monitoring is recommended to identify potential threats to cetaceans.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104203"},"PeriodicalIF":2.1,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881567","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":"Long-term impacts of heavy metal contamination in the East Sea-Byeong ocean dumping site, Republic of Korea","authors":"Hae-San Gu ,&nbsp;Chang-Joon Kim ,&nbsp;Jun-Mo Jung ,&nbsp;Hye-Eun Kim ,&nbsp;Dokyun Kim ,&nbsp;Yeon-Su Kim ,&nbsp;Ki-Young Choi","doi":"10.1016/j.rsma.2025.104199","DOIUrl":"10.1016/j.rsma.2025.104199","url":null,"abstract":"<div><div>This study analyzed sediment samples from the East Sea-Byeong ocean dumping site in the Republic of Korea during three key years: during active ocean dumping (2009), just before the sewage sludge dumping ban (2015), and six years post-ban (2022). The study established regional background concentrations and contamination levels of eight heavy metals (Cr, Ni, Cu, Zn, As, Cd, Pb, and Hg). The results indicate a general reduction in contamination levels following regulatory measures and natural recovery processes. However, past dumping activities have a persistent influence on several indicators. In 2022, geo-accumulation index (I_geo) values for Hg, Cd, Pb, and Cr remain high, and the Pollution Load Index (PLI) also exceeds 1. Additionally, consistent patterns observed in Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) further underscore this ongoing impact. This study underscores the need for long-term monitoring to track recovery, evaluate regulatory effectiveness, and support decisions for sustainable environmental management and ecosystem restoration.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104199"},"PeriodicalIF":2.1,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867802","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":"Green synthesis of iron oxide nanoparticles using Momordica charantia: Kinetics of removal of heavy metal and microplastic pollutants","authors":"Nishita Narwal ,&nbsp;Deeksha Katyal ,&nbsp;Jejal Reddy Bathi","doi":"10.1016/j.rsma.2025.104189","DOIUrl":"10.1016/j.rsma.2025.104189","url":null,"abstract":"<div><div>Microplastics (MPs) and heavy metals (HMs) have been contributing widely to global environmental pollution. Green and eco-friendly synthesis of nanoparticles can be a cost-effective and sustainable approach to protect aquatic ecosystems and human well being. Plant extract based nanoparticles offer major benefits as they are safer, economic, easy to obtain and have good reduction and stabilization potential. Moreover, the active agents in plants are safer to handle than conventional chemicals and microbes. To aid to the mentioned objective, iron oxide nanoparticles (IONPs) were synthesized from the fruit extract of <em>Momordica charantia</em> by coprecipitation method<em>.</em> The characterization studies were carried out using Scanning electron microscopy (SEM), Ultraviolet- Visible spectroscopy (UV-Vis), FTIR (Fourier Transform Infrared Spectroscopy), and XRD (X Ray Diffraction). Spherical shaped, reddish brown nanoparticles with size ranging from 50–70 nm were fabricated. The potential and kinetics of IONPs for the removal of carcinogenic HMs such as Lead (Pb), Cadmium (Cd) and selected MP polymer Polyamide (PA) were further investigated. The Kinetics and isothermal models brought an insight into the removal rates of HMs and MP pollutants. While the polyamide removal was best explained by Pseudo-first order kinetics and Langmuir isotherm; pseudo second-order kinetics and Freundlich isotherm models could fit to the adsorption process between HMs (Pb, Cd) and IONPs. The synthesized IONPs could be used up to four cycles with maximum removal potential of 91.59, 92.52 and 89.43 percent for Pb, Cd and polyamide respectively in the first cycle. In order to check the safety of nanoparticles for environmental applications, phytoxicity studies were conducted. Seeds of <em>Vigna radiata</em> were used to study the toxic effects of each pollutant and the synthesized IONPs on the shoot and root growth. Thus, these preliminary findings of the current study indicate that IONPs synthesized using green pathway could contribute to removal of emerging contaminations from aqueous media, and offer potential approach for water purification, pending further mechanistic investigation.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104189"},"PeriodicalIF":2.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867942","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":"Characterization of microbial diversity in the harbour and ballast water of ships in the Gulf of Mannar, India using environmental DNA","authors":"S. Sangeetha ,&nbsp;A. Pavan-Kumar ,&nbsp;J. Robina ,&nbsp;T. RaviKumar ,&nbsp;G. Iqbal ,&nbsp;P. Bipul ,&nbsp;H. Sanath Kumar ,&nbsp;P. Krishnan ,&nbsp;A. Chaudhari","doi":"10.1016/j.rsma.2025.104197","DOIUrl":"10.1016/j.rsma.2025.104197","url":null,"abstract":"<div><div>Marine ecosystems are rich in diverse microbial communities, which are vital to nutrient cycling and the overall health of the ecosystem. Preserving native microbial diversity is crucial for maintaining ecosystem stability; however, human activities, particularly maritime shipping, pose a significant risk of introducing non-native species through ballast water discharge. Despite the ecological significance of the Gulf of Mannar, data on the microbial diversity in its harbour and ballast waters remain sparse. This study aimed to characterize the microbial diversity in the Gulf of Mannar’s harbour and ballast waters using 16S rRNA amplicon sequencing. Analysis revealed the presence of dominant phyla, including Proteobacteria, Bacteroidetes, Planctomycetes, and Actinobacteria, in both water sources, underscoring their significant ecological roles. At the genus level, ballast water was dominated by species such as <em>Alteromonas</em>, <em>Neptuniibacter</em>, <em>Aestuariibacter</em>, <em>Pirellula</em>, <em>Pseudoalteromonas</em>, <em>Thalassotalea</em>, <em>Rubripirellula</em>, <em>Vibrio</em>, <em>Algicola</em>, and <em>Blastopirellula</em>, while harbour water exhibited species abundance from genera like <em>Alteromonas</em>, <em>Oleibacter</em>, <em>Uncultured-bacterium</em>, <em>Pirellula</em>, <em>Blastopirellula</em>, <em>Tropicimonas</em>, <em>Marinobacter</em>, <em>Neptuniibacter</em>, <em>Illumatobacter</em>, and <em>Candidatus-actinomarina</em>. Diversity indices showed higher species richness in harbour water but greater abundance in ballast water. Significant differences in species abundance were identified between the two environments, notably in <em>Oleiphilus messimensis</em>, a haloalkaliphilic bacterium (Acht6.2), various species within <em>Marinobacter</em> and <em>Marinomonas</em>, and the orders Verrucomicrobiales and Dadabacteriales. This study provides a baseline of microbial biodiversity in the Gulf of Mannar’s harbour and ballast waters, offering insights into microbial community dynamics and informing management strategies to mitigate ecological risks linked to ballast water discharge in the region.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104197"},"PeriodicalIF":2.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851746","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":"Leveraging structural topic modeling to compare “Green Port” research and practice","authors":"Hui Zhuang ,&nbsp;Yang Chen ,&nbsp;Sen Gu ,&nbsp;Thierry Vanelslander","doi":"10.1016/j.rsma.2025.104196","DOIUrl":"10.1016/j.rsma.2025.104196","url":null,"abstract":"<div><div>Although the concept of “green ports” was first introduced by practitioners in the 2000s and attracted significant attention from academia, academic investigations have not comprehensively reflected practitioners’ concerns. To narrow the gaps in the definition of the concept between academia and practitioners and to avoid unclear understandings that jeopardize the value of related research, this study investigates practitioners’ perceptions of green ports through the theoretical lens developed by academia and to identify and explain these gaps. Natural language processing, one of the most advanced text mining methods, is applied to analyze 1781 chunks of green port-related text retrieved from 123 corporate social responsibility reports released by 15 mainland Chinese listed port companies from 2010 to 2021. The results suggest the following: (1) while there is a general consensus between academia and practitioners, significant differences emerge in certain topics, such as noise pollution, land pollution, safety management, and green education. (2) The dynamic and socially constructed nature of green ports is highlighted, suggesting that the influence of the external socioeconomic environment, including site disparity, social patterns and significant local disasters, should be integrated into future research. Finally, suggestions for narrowing the gap between academia and practitioners regarding perceptions of green ports are proposed.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104196"},"PeriodicalIF":2.1,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851744","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":"Blue carbon potential of oyster: Review of global oyster production and annual growth rate","authors":"Du-Young Jung ,&nbsp;Hyeong-Gi Kim ,&nbsp;Tae Lim Kim ,&nbsp;Seo Joon Yoon ,&nbsp;Bong-Oh Kwon ,&nbsp;Kyung-Su Kim ,&nbsp;Jong Seong Khim","doi":"10.1016/j.rsma.2025.104195","DOIUrl":"10.1016/j.rsma.2025.104195","url":null,"abstract":"<div><div>Oysters have been considered as an important candidate for blue carbon due to their ability to store carbon through calcification. This study aims to compare the growth of major cultured oyster species for effective carbon sequestration and determine the impact of climate change on oyster growth. The results showed that suspended cultured <em>Crassostrea angulata</em> and <em>Magallana gigas</em> had high carbon sequestration potential efficiencies (CSE) of 2.98 and 2.89, while bottom cultured <em>Ostrea edulis</em> had the lowest CSE of 1.03. Oysters' optimal growth sea surface temperature (SST) was 24–28 ℃, and the optimal salinity was around 25psu. Comparing past and present <em>M. gigas</em> growth with a 1 ℃ increase in SST due to climate change did not show significant differences. However, mortality increased dramatically due to the rise in diseases caused by climate change. This study supports global oyster management and conservation efforts while contributing to essential biological data collection.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104195"},"PeriodicalIF":2.1,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890904","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":"Unveiling the seismic attenuation characteristics in the mantle beneath Southeast Asia: Insights into mantle dynamics and tectonic processes","authors":"Van-Duong Nguyen ,&nbsp;Le-Minh Nguyen ,&nbsp;Cong-Nghia Nguyen ,&nbsp;Thi-Giang Ha ,&nbsp;Vinh-Long Ha ,&nbsp;Tien-Hung Nguyen ,&nbsp;Quang-Khoi Le","doi":"10.1016/j.rsma.2025.104192","DOIUrl":"10.1016/j.rsma.2025.104192","url":null,"abstract":"<div><div>In this paper, we analyze the Q value characteristics of the mantle beneath Southeast Asia (SE) using multiple ScS and sScS phases recorded at 78 seismic stations. The seismic attenuation in the mantle beneath the East Vietnam Sea (EVS) and the surroundings has been examined by applying the spectral ratio method to the multiple ScS₃/ScS₂ and sScS₃/sScS₂ phases recorded at seismic broadband stations surrounding the EVS region. The estimated average Q values for the EVS region for the ScS and sScS are 71.7 ± 49.1 and 86.0 ± 54.8 respectively, which are relatively low and fall within the range of volcanic active regions suggesting a relatively hot mantle beneath, which may reflect the spreading process of the EVS. Moreover, the Q values exhibit strong lateral variation based on the ray path propagating through different tectonic structures. Compared with the seismic tomography models and thermal structure of the region, the low Q value is observed along the ray paths that bounce regions with mantle wedge melting and subduction process present. In contrast, the high Q value of some source-station pairs might be explained by the low temperature of the shallow part of the upper mantle in the EVS central, suggesting the cessation of the spreading process in the Miocene.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104192"},"PeriodicalIF":2.1,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847704","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":"The Heterobranchia gastropods from the Cabo Verde Islands (NE Atlantic): A hot-spot of endemism","authors":"Manuel António E. Malaquias ,&nbsp;Martina Turani ,&nbsp;Evandro Lopes ,&nbsp;Juan L. Cervera","doi":"10.1016/j.rsma.2025.104193","DOIUrl":"10.1016/j.rsma.2025.104193","url":null,"abstract":"<div><div>The Archipelago of Cabo Verde is located in the northeastern Atlantic Ocean, off the coast of Senegal in West Africa. According to recent studies, it constitutes a distinct biogeographical subprovince with a subtropical affinity. The archipelago is well known for its high levels of marine endemism, likely due to the geological age and the isolation of the islands maintained by ocean currents and upwelling systems. In this paper, taxonomic findings from a field survey conducted on the islands of Sal, Boa Vista, and São Vicente are presented, accompanied by detailed geographical and ecological data to enhance the documentation of the distribution and habitat of species in the archipelago. Specimens were collected from tidal rock pools and subtidal zones down to 18 m depth through snorkeling and SCUBA diving. Sampling methods included direct hand collection, surface brushing, and gathering algae into sealed plastic bags for later examination. In the laboratory, specimens were sorted into morphospecies, photographed, cataloged, and preserved in 99 % ethanol following relaxation. A total of 27 species of Heterobranchia were identified, including one new record for the archipelago (<em>Caloria quatrefagesi</em>) and one species likely new to science (here identified as Facelinidae sp.). Notably, 44 % of the species collected are endemic to Cabo Verde, further highlighting the unique marine biodiversity of the region.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104193"},"PeriodicalIF":2.1,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887891","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":"International ship ballast water management in response to nuclear wastewater discharge","authors":"Jihong Chen ,&nbsp;Xizhi Chen ,&nbsp;Taiyang Li ,&nbsp;Jianghao Xu ,&nbsp;Jia Shi ,&nbsp;Huangziyi Chen ,&nbsp;Yinuo Liu","doi":"10.1016/j.rsma.2025.104190","DOIUrl":"10.1016/j.rsma.2025.104190","url":null,"abstract":"<div><div>On August 24, 2023, Japan officially began discharging nuclear wastewater from the Fukushima Daiichi Nuclear Power Plant into the Pacific Ocean. This unprecedented action has sparked worldwide concern over its ecological impacts, set a precedent for handling similar emergency pollution incidents, and exposed critical shortcomings in the current management framework for ship ballast water in terms of nuclear radiation risk prevention. By systematically analyzing existing ballast water treatment technologies and management framework, this paper reveals the inherent risks and deficiencies in addressing nuclear-contaminated water. These shortcomings include: a lack of uniform loading standards and vessel-specific regulations; Insufficient technologies for nuclear pollution treatment, with some vessels lacking ballast water treatment systems altogether, while others face high costs and technical challenges in retrofitting such systems; ballast water exchange practices that may accelerate the spread of contamination; the absence of clear discharge standards; inconsistent sampling and monitoring procedures characterized by low frequency and a singular methodological approach; and inadequate record-keeping practices, including short retention times, insufficient disclosure, and a lack of data on radionuclide concentrations. Moreover, the establishment of standards for radioactive ballast water is hampered by international political and economic conflicts. Then, this study proposes specific recommendations covering the improvement of loading regulations, the development and application of nuclear radiation treatment technologies, the optimization of shipping route planning, the enhancement of regulatory oversight and data recording, and the formulation of globally unified management standards. The aim is to provide a reference framework for maritime authorities, shipowners, and port states to effectively address the gaps in current systems for nuclear pollution prevention and to safeguard the marine ecological environment. By uncovering the core deficiencies in the management of nuclear radiation-related risks, this paper aspires to stimulate further research and practical advancements, fostering international collaboration to build a scientific and systematic ballast water management framework capable of effectively responding to nuclear contamination challenges.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"86 ","pages":"Article 104190"},"PeriodicalIF":2.1,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867801","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}