Regional Studies in Marine Science最新文献

{"title":"Effect of ground gear type on catch efficiency of demersal trawls","authors":"Ilmar Brinkhof,&nbsp;Bent Herrmann,&nbsp;Manu Sistiaga,&nbsp;Jesse Brinkhof","doi":"10.1016/j.rsma.2026.105292","DOIUrl":"10.1016/j.rsma.2026.105292","url":null,"abstract":"<div><div>Demersal trawls are among the most widespread and important fishing gears worldwide. However, due to issues with catch efficiency, high energy demand and damage to the seabed, gear improvements are searched for that could reduce fishing effort to harvest the catch quota. Several components of demersal trawls, including the ground gear, affect its capture efficiency. Recent progress has led to the development of the semi-circular spreading ground gear (SCSG), which has resulted in increased catch efficiency compared to the traditional rockhopper ground gear (RH). However, little is known about the mechanisms explaining this increased catch efficiency. The present study compared capture rates for cod (<em>Gadus morhua</em>), haddock (<em>Melanogrammus aeglefinus</em>) and redfish (<em>Sebastes</em> spp.) in a trawl equipped with the RH and a trawl equipped with the SCSG in the Barents Sea demersal trawl fishery. The results showed that the ground gear catch efficiency was clearly length dependent for cod and haddock, with high fractions of smaller fish escaping through or underneath the ground gear. The results confirmed that the trawl with the SCSG could capture more cod between lengths of 25 – 50 cm, but also that more cod between 50 – 80 cm escaped beneath or through the center part of this ground gear compared to the RH gear. The higher catch efficiency of the SCSG can likely be explained by increased gear spreading an improved herding efficiency compared to the RH gear. Nonetheless, a substantial fraction of fish still escaped beneath or through both ground gears, demonstrating potential for further improvements in catch efficiency.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"101 ","pages":"Article 105292"},"PeriodicalIF":2.7,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148638290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatiotemporal patterns and main drivers of sea turtle strandings along the Mediterranean coast of Morocco","authors":"Youssef Ahannach,&nbsp;Bilal Mghili,&nbsp;John DeBeer,&nbsp;Manjula Tiwari,&nbsp;Mustapha Aksissou","doi":"10.1016/j.rsma.2026.105320","DOIUrl":"10.1016/j.rsma.2026.105320","url":null,"abstract":"<div><div>The Mediterranean coast of Morocco hosts foraging grounds and a migration corridor between feeding and breeding areas for both the loggerhead turtle (<em>Caretta caretta)</em> and the leatherback turtle (<em>Dermochelys coriacea</em>), where both species face threats from anthropogenic activities. This study focused on analysing the spatial and temporal patterns of strandings, life stage, and the main causes of strandings along the entire Mediterranean coast of Morocco. Data were collected between 2019 and 2025 using daily beach monitoring, public reports, citizen science, and reports from the National Institute of Fisheries Research (INRH). A total of 84 turtles (63 loggerheads, 19 leatherbacks, and two undetermined species) were found stranded during the study period. Strandings of both species were most frequent in the western region during winter and spring. The mean annual strandings were 9 ± 4 individuals for loggerhead turtles (range = 1<img>15) and 3 ± 2 individuals for leatherback turtles (range = 1<img>7). The majority of stranded loggerhead turtles (71%, n = 35) and leatherback turtles (67%, n = 12) were subadults. The cause of strandings for the majority of turtles was categorized as unknown, but those showing signs of anthropogenic interactions were determined to be caused by interactions with fisheries, vessel collisions, and oil pollution. The present study provides important information that can improve sea turtle monitoring and the development of conservation strategies along the Mediterranean coast of Morocco.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"101 ","pages":"Article 105320"},"PeriodicalIF":2.7,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148740170","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":"Seafloor marine litter and associated macrofouling communities in fishing grounds along the south-eastern Black Sea coast (Türkiye)","authors":"Ülgen Aytan,&nbsp;Melih Ertan Çinar,&nbsp;Şermin Açik,&nbsp;Ferah Koçak,&nbsp;Yasemen Şentürk Koca,&nbsp;Fatma Başak Esensoy,&nbsp;Yusuf Ceylan","doi":"10.1016/j.rsma.2026.105293","DOIUrl":"10.1016/j.rsma.2026.105293","url":null,"abstract":"<div><div>The composition and density of marine macro-litter on the seafloor, together with the associated macrofouling assemblages, were investigated on the continental shelf of the south-eastern Black Sea in March and July 2022. A total of 833 litter items weighing 382 kg were collected during eight bottom-trawl hauls. Plastics were the dominant material category, accounting for approximately 72% of the total litter by number and 37% by weight. The overall mean litter densities were 451 items km⁻² and 106 kg km⁻². A total of 19 macrofouling taxa belonging to six phyla Cnidaria, Annelida, Arthropoda, Mollusca, Bryozoa and Chordata were identified on plastic litter items. The hydrozoans <em>Clytia linearis</em> and <em>Obelia dichotoma</em> are reported here for the first time from the Black Sea. Six non-indigenous taxa were also recorded among the organisms colonizing plastic debris. The high abundance of plastic litter on the seafloor raises concern regarding its ecological effects on benthic habitats. The findings further demonstrate that persistent plastic debris provides artificial substrates for diverse fouling assemblages, including non-indigenous taxa, and may contribute to habitat connectivity and the secondary spread of fouling organisms in the Black Sea.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"101 ","pages":"Article 105293"},"PeriodicalIF":2.7,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148740172","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":"Adsorption and sedimentation of 137Cs and 90Sr in Japanese coastal waters following fukushima nuclear accident","authors":"Yibang Zhang ,&nbsp;Gongye Liu ,&nbsp;Jinqiu Du ,&nbsp;Liang Shao ,&nbsp;Wuhui Lin ,&nbsp;Jiangang Gu","doi":"10.1016/j.rsma.2026.105134","DOIUrl":"10.1016/j.rsma.2026.105134","url":null,"abstract":"<div><div>The long-term adsorption and sedimentation behavior of ¹³⁷Cs and ⁹⁰Sr in coastal waters is critical for radiological risk assessment. Based on monitoring data from the International Atomic Energy Agency (IAEA) Marine Radioactivity Information System (MARIS) for 14 coastal subregions of Japan over the period 2011–2020, we investigated the distribution patterns and adsorption–sedimentation behavior of these two radionuclides in seawater and sediments following the Fukushima Nuclear Accident (FNA). The results show that from 2014 to 2020, the ⁹⁰Sr/¹³⁷Cs activity ratio in seawater remained relatively stable at 0.42–0.47, with the Fukushima-derived contribution accounting for approximately 32.6–40.0% of the total. Controlled by clay adsorption and cesium-rich microparticles (CsMPs), ¹³⁷Cs exhibited a pronounced near-source enrichment in sediments, and its distribution coefficient (K_d) varied by up to two orders of magnitude across regions (3.5 ×10²–1.2 ×10⁴ L/kg). In contrast, the K_d of ⁹⁰Sr was consistently 1–2 orders of magnitude lower (88–3.7 ×10² L/kg), indicating a greater potential for long-range migration, consistent with its higher solubility. A sharp decline in the K_d of ¹³⁷Cs off Miyagi occurred after 2017 (from 1.2 ×10⁴–2.6 ×10³ L/kg), suggesting a secondary release event likely induced by sediment resuspension. In Tokyo Bay, the K_d of ¹³⁷Cs showed a fluctuating upward trend (approximately 2.7-fold increase from 2012 to 2019) and a positive partial correlation with the eutrophication index (EI) (r = 0.55). This may imply that the enhanced biological pump associated with eutrophication promotes the transfer of ¹³⁷Cs from seawater to sediments. These findings provide a scientific basis for predicting the behavior of radionuclides in coastal waters and managing environmental risks, while also highlighting the importance of integrating nuclide-specific geochemical characteristics with regional environmental conditions.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"100 ","pages":"Article 105134"},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148380096","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":"Biogeochemistry of sedimentary phosphorus in an enriched, sandy coastal area (Seine Bay, France)","authors":"Françoise ANDRIEUX-LOYER,&nbsp;Roger KÉROUEL,&nbsp;Alain AMINOT","doi":"10.1016/j.rsma.2026.105211","DOIUrl":"10.1016/j.rsma.2026.105211","url":null,"abstract":"<div><div>The eutrophic Seine Bay (area: 4000 km²) with its sandy sediments provided an ideal setting to study the forms of phosphorus (P), with about 7000 tons brought by the Seine River each year. Since P biogeochemistry is little documented in sandy sediments, we investigated it through sediment profiles at various locations in the bay. General characteristics (granulometry, permeability, organic carbon, pH), sedimentary P forms bound to calcium and iron, organic P (Orga-P) and interstitial nutrients were studied. The work sought to highlight the effect of continental and marine inputs, while regarding the currents in the bay with respect to the dispersion of particles from the estuary, especially the finer ones rich in iron minerals. Total P (TP; 9–12 µmol g⁻¹) varied by less than 10% within the 10 cm surface layer. Detrital (mainly continental) and authigenic (mainly marine) calcium-bound P forms together accounted for almost 60% of TP. The other major fraction, Orga-P (23–31% of TP), originated mainly from endogenous planktonic production. Iron-P forms (crystallized or adsorbed) were less abundant (10–24% of TP) and showed a distinct redox status depending on location. At all sites, surface phosphate concentrations indicated mineralization of Orga-P of planktonic origin. In the center of the bay, the marine influence was strong, the sediment was oxic and Iron-P precipitation occurred. Weak currents in the southwest concentrated fine particles, producing anoxic sediment in which phosphate was trapped beneath unreactive iron compounds. This study describes phosphorus biogeochemistry after a stable long term input situation.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"100 ","pages":"Article 105211"},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148570577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monsoon-driven seasonal variability in sediment texture of embayed beaches along the central west coast of India","authors":"Puneet Kumar Mishra,&nbsp;Mani Murali R,&nbsp;Deepika Dwivedi,&nbsp;SK Ariful Hossain,&nbsp;Santhosh Kumar S,&nbsp;Jayakumar Seelam,&nbsp;Shincy Francis,&nbsp;Richa Rai","doi":"10.1016/j.rsma.2026.105155","DOIUrl":"10.1016/j.rsma.2026.105155","url":null,"abstract":"<div><div>This study investigates the seasonal variability in sediment texture and the morphodynamic responses of embayed beaches along the Central West Coast (CWC) of India under monsoonal forcing. Sixteen embayed beaches were analysed using grain-size statistics, beach profiling, and wave-climate data across four seasonal intervals from February 2023 to September 2024 to assess variations in grain-size distribution, sorting, skewness, and kurtosis. The results reveal a distinct monsoon-driven erosion-accretion cycle, with coarser sediments (mean grain size: 0.6–4.84 Φ) and better sorting observed in September, coinciding with peak significant wave height (Hs) and increased erosion (-32.16 m³/m average volume loss). In contrast, finer sediments (mean grain size: 0.8–4.1 Φ) and poorer sorting characterise February, aligning with calmer hydrodynamic conditions and net sediment accretion (average volume gain: 28.61 m³/m). Skewness and kurtosis trends further indicate high-energy wave action driving selective grain transport, while post-monsoonal conditions favour more heterogeneous sediment deposition. The findings suggest that although embayed beaches are morphodynamically semi-isolated, they exhibit sedimentary responses coherent with those of wave-dominated open coasts when subjected to strong seasonal forcing, such as the monsoon. This work emphasises the sensitivity of embayed beach systems to regional hydrodynamics and rising sea levels, offering critical insights for coastal management in monsoon-affected coasts.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"100 ","pages":"Article 105155"},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148570583","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":"Minor harbours as dispersal hubs in the Mediterranean Sea: The case of non–indigenous species in an Italian port","authors":"Antonina Badalucco,&nbsp;Fabio Bozzeda,&nbsp;Fabio Crocetta,&nbsp;Andrea Desiderato,&nbsp;Cengiz Koçak,&nbsp;Joachim Langeneck,&nbsp;Emanuele Mancini,&nbsp;Caterina Martino,&nbsp;Francesco Mastrototaro,&nbsp;Serena Mucciolo,&nbsp;Luigi Musco,&nbsp;Maria Giovanna Parisi,&nbsp;Antonietta Rosso,&nbsp;Yann Toso,&nbsp;Sabrina Lo Brutto","doi":"10.1016/j.rsma.2026.105169","DOIUrl":"10.1016/j.rsma.2026.105169","url":null,"abstract":"<div><div>The Mediterranean Sea is one of the regions most severely affected by marine biological invasions, with maritime transport representing the principal pathway for the introduction and secondary spread of non-indigenous species (NIS). In this context, ports act as key nodes facilitating the establishment and dispersal of fouling-associated taxa. Nevertheless, small and medium-sized harbours remain poorly investigated. This study provides the first comprehensive assessment of NIS and cryptogenic invertebrates associated with the fouling communities of the port of Trapani (north-western Sicily, central Mediterranean Sea), a harbour directly connected to the Egadi Islands Marine Protected Area (MPA). The survey identified 27 taxa, with Peracarida and Polychaeta representing the most diverse components. To contextualise the findings, a Mediterranean-wide occurrence dataset was reconstructed through an extensive literature review. Species distributions were analysed across four Mediterranean biogeographical sectors, revealing strong spatial heterogeneity and marked geographical gaps in sampling effort, particularly along the North African coast. In parallel, maritime traffic data from the port of Trapani were analysed to evaluate potential pathways of dispersal. Results revealed intense liner and cruise vessel traffic connecting Trapani with several Mediterranean ports and transoceanic routes. The strategic position of Trapani, located between the Strait of Gibraltar and the Suez Canal, together with its proximity to the Egadi Islands MPA, highlights its importance as a potential stepping-stone hub for NIS dispersal in the central Mediterranean. Considering the ecological vulnerability of the neighbouring MPA, the high density of NIS recorded suggests a significant risk of spillover. Therefore, we recommend the implementation of early-detection protocols and a data-sharing system with the port authorities. Such management strategies are crucial to evaluate the progression of invasions from and towards this Mediterranean port and to mitigate the socio-economic and ecological impacts of NIS.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"100 ","pages":"Article 105169"},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148570659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First multi-estuary assessment of microplastics along the West Sumatran Coast, Indonesia: Spatial patterns, polymer composition, and anthropogenic drivers","authors":"Wiya Elsa Fitri,&nbsp;Adewirli Putra,&nbsp;Deswati Deswati,&nbsp;Nofrita Nofrita,&nbsp;Syamsuardi Syamsuardi","doi":"10.1016/j.rsma.2026.105126","DOIUrl":"10.1016/j.rsma.2026.105126","url":null,"abstract":"<div><div>Microplastics (MPs) are increasingly recognized as critical contaminants in tropical estuaries, yet baseline data for the West Coast of Sumatra remain limited. This study provides a multi-estuary assessment of MP abundance, morphology, and polymer composition across five estuaries during the monsoonal transition period. A total of 15 surface water samples (five estuaries × three locations) were collected using a 45 µm plankton net, filtering approximately 710 L per tow. Microplastic abundance ranged from 145 to 180 particles L⁻¹ and was dominated by fragments and fine particles (≤100 µm). Spatial differences among estuaries were not statistically significant (Kruskal–Wallis, p &gt; 0.05), although descriptive trends were observed, including slightly elevated concentrations near estuary-mouth positions (T2), potentially reflecting hydrodynamic retention processes. A subset of particles (n = 120; ∼25% of total counted particles) was analyzed using ATR–FTIR, revealing polyethylene (PE) and polypropylene (PP) as dominant polymers. A positive association between MP abundance and the Anthropogenic Pressure Index (API) (Spearman ρ = 0.90, p = 0.037; n = 5) suggests a potential link between watershed activities and microplastic contamination, although this relationship should be interpreted cautiously due to limited sample size. These findings provide baseline data for tropical estuaries and highlight the need for multi-seasonal and higher-resolution monitoring.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"100 ","pages":"Article 105126"},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148570827","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":"Subsurface chlorophyll maxima in the Island influenced southeastern Arabian Sea: Variability in a hydrographically complex region","authors":"Arun V. S.,&nbsp;Vishnu N. N. S.,&nbsp;Shirin J. Jadhav,&nbsp;Midhun Shah H.,&nbsp;Smitha B. R.","doi":"10.1016/j.rsma.2026.105184","DOIUrl":"10.1016/j.rsma.2026.105184","url":null,"abstract":"<div><div>The oceanic region of the southeastern Arabian Sea (SEAS) cannot be treated as a single, uniform marine ecosystem due to the influence of the Lakshadweep Islands on regional hydrography. Primary production in this region is predominantly subsurface and sustained by a persistent subsurface chlorophyll maxima (SCM). In this study, we examined the spatial and temporal variability of the SCM under contrasting hydrographic conditions during the stratified (spring intermonsoon) and mixed (summer monsoon) seasons. During spring intermonsoon, the SCM was discrete and associated with a coherent stability maximum, indicating strong physical-biological coupling. In contrast, during the summer monsoon, the SCM exhibited pronounced spatial heterogeneity in magnitude, depth of occurrence, and vertical thickness. The depth of the stability maxima (DSM) closely aligned with SCM depth at Kalpeni, indicating a DSM and DCM coupling, whereas this relationship was absent at Minicoy, suggesting contrasting stratification between nearby regions. The mixing of Bay of Bengal Water with Arabian Sea High-Salinity Water, characterized by contrasting temperature-salinity properties, fragments the water mass structure and alters the dynamic stability across the region. These findings emphasize the intricate biophysical interactions that regulate subsurface productivity in the oceanic SEAS and highlight the importance of considering this region as a spatially heterogeneous system due to the seasonal propagation of salinity front generated by the mixing of high-salinity Arabian Sea waters and low-salinity Bay of Bengal waters.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"100 ","pages":"Article 105184"},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148570926","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":"Geochemical markers of metal and organic contamination in brackish sediments","authors":"R.M. Cigala,&nbsp;F. Crea,&nbsp;R. Somma,&nbsp;C. De Stefano,&nbsp;M. Ghanadzadeh Yazdi,&nbsp;S. Giacobbe","doi":"10.1016/j.rsma.2026.105205","DOIUrl":"10.1016/j.rsma.2026.105205","url":null,"abstract":"<div><div>The Holocene shallow sediments of brackish pond Lake Ganzirri, north-eastern Sicily (Italy) were examined to detect eventual exceedances of selected pollutants and their relationships with the textural, mineralogical/petrographic sediment features. The organic content of sediments, made up of humic and fluvic acid derivatives, was relatively low, with concentration increasing with depth and distance from the sea. The distribution of metals and organic matter allowed for relating some higher concentrations to critical issues near the surrounding urban fabric and influenced by the local water circulation. Different Metal Pollution Indices were used to evaluate the potential anthropogenic effects on the sediments, and by using a synthetic model for seawater, the distribution of some toxic metal cations was simulated in real conditions (i.e., pH, salinity and temperature). The multivariate analysis evidenced weak spatial trends, although statistically supported, in the metal contaminant distribution and relationship with the organic content, as a result of a complex interaction of natural and anthropogenic constraints. Lake Ganzirri, is thus proposed as an available case study of a brackish environment submitted to anthropogenic pressure.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":"100 ","pages":"Article 105205"},"PeriodicalIF":2.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148570955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}