Marine environmental research最新文献

{"title":"Seasonal and long-term variations of nutrients in Liaodong Bay, China: Influencing factors and ecological effects","authors":"Jinhao Wu ,&nbsp;Zhaohui Wang ,&nbsp;Jiashen Tian ,&nbsp;Nan Li ,&nbsp;Kun Wang ,&nbsp;Lun Song ,&nbsp;Guangjun Song ,&nbsp;Xuemei Xu","doi":"10.1016/j.marenvres.2024.106815","DOIUrl":"10.1016/j.marenvres.2024.106815","url":null,"abstract":"<div><div>Nutrients are essential for marine primary productivity and have a critical role in maintaining the structure and function of marginal. Variations in nutrient levels in sea ecosystems can influence ecological disturbances significantly. The Liaodong Bay (LDB) is a semi-enclosed marginal sea in northern China. It has experienced severe eutrophication since the 1990s, leading to considerable environmental challenges. Understanding of seasonal and long-term nutrient dynamics in the LDB is limited. We examined seasonal datasets collected in May (spring), August (summer), November (autumn), and March (winter) of 2019, and analyzed long-term trends through historical records spanning multiple decades. Nutrients accumulated during autumn/winter but were depleted during spring/summer. A low concentration of dissolved inorganic phosphate led to an increased nitrogen ratio exceeding the Redfield ratio (&gt;16) during winter, spring, and summer, driven by phytoplankton growth. In late-autumn, nutrient concentrations increased, with ratios approaching the Redfield ratio. Phosphorus limitation prevailed in spring, summer, and winter, while silicon limitation dominated in autumn. Dissolved inorganic nitrogen and nitrogen ratios in the LDB increased sharply since the 1980s, peaking before declining after 2013. Dissolved silica and silicon ratios decreased steadily, stabilizing in recent years. These trends imply a shift from nitrogen-to-phosphorus limitation, influenced by riverine inputs and atmospheric deposition. These nutrient fluctuations may have significant ecological effects, including dinoflagellate abundance, algal blooms, and jellyfish blooms. Our analyses highlight the complexity of nutrient dynamics and positive impact of local nutrient-reduction policies implemented in recent years in improving the environmental quality of the LDB.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"202 ","pages":"Article 106815"},"PeriodicalIF":3.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Ecological interactions and unique resource partitioning between dolphins in the ultraoligotrophic eastern Mediterranean Sea","authors":"Zuriel E.Y ,&nbsp;Martinez S ,&nbsp;Shemesh E ,&nbsp;Galili O ,&nbsp;Tchernov D ,&nbsp;Scheinin A.P ,&nbsp;Kerem D","doi":"10.1016/j.marenvres.2024.106817","DOIUrl":"10.1016/j.marenvres.2024.106817","url":null,"abstract":"<div><div>This study delves into the eco-dynamics of three dolphin species in the ultra-oligotrophic waters off the southern Israeli Mediterranean coast - two neritic: the common bottlenose dolphin (<em>Tursiops truncatus</em>) and the common dolphin (<em>Delphinus delphis</em>) and one pelagic: the striped dolphin (<em>Stenella coeruleoalba</em>). It utilizes compound-specific stable isotope analysis of individual amino acids to investigate carbon and nitrogen source variability and trophic positioning among the three species. Muscle samples from stranded individuals were analyzed for carbon (δ¹³C) and nitrogen (δ¹⁵N) isotopic ratios of amino acids, with Δδ¹⁵N (Glutamate-Phenylalanine) acting as an indicator of relative trophic position. The findings reveal minor differences in carbon source signatures and trophic position among species, but distinct nitrogen source signatures. The latter indicate discrete foraging habitats for bottlenose and striped dolphins and suggest that common dolphins transition between shallow benthic and deep pelagic feeding areas during the day and night, respectively, as part of their survival strategy.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"203 ","pages":"Article 106817"},"PeriodicalIF":3.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Fouling community shows high resistance and metabolic resilience towards experimental high intensity heatwave","authors":"Robin P.M. Gauff ,&nbsp;Stephane Greff ,&nbsp;Olivier Bohner ,&nbsp;Stephane Loisel ,&nbsp;Christophe Lejeusne ,&nbsp;Dominique Davoult","doi":"10.1016/j.marenvres.2024.106813","DOIUrl":"10.1016/j.marenvres.2024.106813","url":null,"abstract":"<div><div>Climate change is predicted to increase the prevalence of marine heatwaves with an increase in heatwave frequency and intensity. While some studies have shown the effect of marine heatwaves in warm temperate climates and the effect of overall higher temperature in warm and cold temperate climates, it is yet not entirely understood how heatwaves impact marine urban communities in cold temperate climates. As thermal resistance might be related to selective pressures and acclimation, it seems reasonable to assume that they may have a strong impact on local fauna and flora. In the present study, we simulated an <em>in situ</em> high amplitude heatwave and observed the community structure and the metabolism of <em>Bugula neritina</em> at two time-steps after the heatwave and compared them to control communities and individuals. Contrary to our expectations, the community structure remained vastly unaffected, as did the total metabolome of <em>B. neritina</em>. This shows that the community was able to resist the disturbance of the heatwave. <em>Bugula neritina</em> additionally showed a certain metabolic resilience as the already minor differences in the metabolome between control and the heatwave treatment diminished even further between the tested time steps.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"203 ","pages":"Article 106813"},"PeriodicalIF":3.0,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Body size and isotopic profiles enable discrimination between long-term resident and highly migrant contingents of Atlantic bluefin tuna","authors":"Antonio Medina ,&nbsp;Ana Magro ,&nbsp;Francisco J. Abascal ,&nbsp;José L. Varela","doi":"10.1016/j.marenvres.2024.106816","DOIUrl":"10.1016/j.marenvres.2024.106816","url":null,"abstract":"<div><div>The Atlantic bluefin tuna (ABFT) population ranges throughout the Atlantic Ocean and Mediterranean Sea, and consists of multiple contingents that use diverse habitats and show different movement patterns over the life cycle. Based on body size, elemental and isotopic data of C and N in muscle and liver, we analysed eastern-stock ABFT by comparing mid-sized individuals caught by hook-and-line gears with larger individuals harvested from traps in the Strait of Gibraltar (SoG). Our results show that trophic-related chemical markers have potential for separating temporarily sympatric contingents throughout the ABFT population range, reflecting size-dependent spatial distribution and differential patterns of residency and migration. We present evidence of long-term residency of ABFT in the SoG that persists until the estimated age of ∼5 years (size of ∼140 cm in straight fork length). This age apparently marks a turning point in the life history, where there occurs an ontogenetic switch in the migratory behaviour and distributional pattern. This study contributes new insight into our knowledge about size structure and residency-movement patterns in eastern ABFT. It shows distinct size-dependent migratory and spatial dynamics. The present results encourage further investigation on poorly studied ABFT contingents for a better understanding of the population dynamics towards more comprehensive management plans.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"202 ","pages":"Article 106816"},"PeriodicalIF":3.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Toxicological impacts of plastic microfibers from face masks on Artemia salina: An environmental assessment using Box-Behnken design","authors":"Devlina Das Pramanik ,&nbsp;Armeena Sharma ,&nbsp;Deepak Kumar Das ,&nbsp;Arindam Pramanik ,&nbsp;Paul Kay ,&nbsp;Francisco M. Goycoolea","doi":"10.1016/j.marenvres.2024.106810","DOIUrl":"10.1016/j.marenvres.2024.106810","url":null,"abstract":"<div><div>An increase in global plastic manufacturing and subsequent disposal has resulted in widespread increase in microplastic pollution. Particularly, the post-COVID surge in face mask usage has introduced significant volumes of synthetic plastic microfibers into the environment, posing new ecological risks. Present study examines the toxicological impacts of face mask derived microfibers on <em>Artemia salina</em>, a key marine zooplankton species, using the Box-Behnken design to assess the effects of microfiber dosage (0.1 mg/L- 5 mg/L), salinity (0.5 ppt–30 ppt), temperature (10 °C-45 °C), and cyst stocking density (10 cysts/L-100 cysts/L) on hatching efficiency and swimming competencies. Results demonstrated that higher microfiber dosages (2.5 mg/L-5 mg/L) significantly reduced the hatching efficiencies and swimming competencies, while temperature and cyst density also modulated these effects. Additionally, survival assays indicated a significant reduction in survival rates with increasing microfiber concentrations, attributed to the bioaccumulation, oxidative stress and developmental deformities in the organism. The study further explores the leaching of chromophoric dissolved organic matter and turbidity, revealing a direct correlation with microfiber dosage and exposure duration. These findings underscore the urgent need for mitigation strategies to address microfiber pollution and protect aquatic ecosystems. Data presented from the research provides valuable insights into the environmental impacts of plastic microfiber contamination, emphasizing the necessity for continued investigation into effective solutions for managing plastic waste.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"202 ","pages":"Article 106810"},"PeriodicalIF":3.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Photoautotrophic picoplankton of the Kara Sea in the middle of summer: Effect of first-year ice retreat on carbon and chlorophyll biomass and primary production","authors":"Tatiana A. Belevich ,&nbsp;Andrey B. Demidov ,&nbsp;Olga V. Vorob'eva ,&nbsp;Alexandr A. Polukhin ,&nbsp;Sergey A. Shchuka ,&nbsp;Elena V. Eremeeva ,&nbsp;Michail V. Flint","doi":"10.1016/j.marenvres.2024.106809","DOIUrl":"10.1016/j.marenvres.2024.106809","url":null,"abstract":"<div><div>The Arctic warming leads to a decline in sea-ice extent and thickness, rapid warming and freshening of the sea surface which impact the distribution of phytoplankton size composition. Picophytoplankton is an ecologically important component of Arctic pelagic marine ecosystems, and its role may be altered by global warming. In this study, the abundance and biomass, the chlorophyll <em>a</em> (Chl-<em>a</em>) and primary production (PP) of picophytoplankton, and its spatial and temporal distribution were investigated in the Kara Sea during the ice-melt season in July 2019. Picophytoplankton played a major role in the surface PP in the southern and western areas of the Kara Sea. In the surface layer, the contribution of picophytoplankton to total Chl-<em>a</em> increased insignificantly, and the contribution of picophytoplankton to total PP decreased significantly with the time of sea ice retreat. In the euphotic zone, the Chl-<em>a</em> concentration of picophytoplankton and its contribution to total Chl-<em>a</em> decreased with the time of sea ice retreat. The average picophytoplankton biomass determined in the present study (2.72 ± 5.10 mg C m⁻³) corresponded to the biomass estimates in the Arctic. The picophytoplankton community was strongly dominated by eukaryotes, cyanobacteria were only detected at 3 out of 11 stations, with maximum abundances (0.07 × 10⁹ cells m⁻³) observed at depths below 15 m. The obtained results contribute significantly to the study of the picophytoplankton dynamics during the ice-melting season in the hard-to-reach Kara Sea.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"202 ","pages":"Article 106809"},"PeriodicalIF":3.0,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Honeycomb worm bioconstructions persist under combined human and wave-related disturbances","authors":"Annalisa Storari ,&nbsp;Sara Ometto ,&nbsp;Lisandro Benedetti-Cecchi ,&nbsp;Maria Flavia Gravina ,&nbsp;Daniele Ventura ,&nbsp;Iacopo Bertocci","doi":"10.1016/j.marenvres.2024.106811","DOIUrl":"10.1016/j.marenvres.2024.106811","url":null,"abstract":"<div><div>Marine bioconstructions and their ecological functions are increasingly threatened by compounded natural disturbances and direct and indirect impacts of anthropogenic activities. Through a manipulative experiment in the field, we assessed the response of intertidal biogenic patches built by the honeycomb worm, <em>Sabellaria alveolata</em>, to combined disturbances. Repeated battering events, simulating those associated with waves, were applied on intact or previously damaged bioconstructions, mimicking those impacted by harvesting of infaunal organisms. Descriptors of reef status, including the total patch size, the percentage cover of intact bioconstruction, tube density and diameter were examined as response variables to test two hypotheses: i) multiple disturbances would result in disproportionate effects on <em>S. alveolata</em> structures compared to isolate perturbations; ii) the structural stability of bioconstruction would be increasingly undermined by physical impacts with the increasing degree of reef damage from previous harvesting disturbance. When applied separately, intermediate intensity of harvesting and battering were associated with a larger size of <em>S. alveolata</em> patches compared to the unmanipulated control, while the cover of intact bioconstruction tended to decline over time in all experimental conditions. Such a reduction was particularly small under the high level of harvesting. The density and the diameter of sabellariid tubes were not significantly affected by any treatment. The difference between the effect of battering combined with each level of harvesting and the cumulative effect of each disturbance applied separately did not deviate from what would be expected by chance. Our findings highlight the ability of the examined bioconstructions to withstand and potentially thrive under compound disturbances, offering crucial insights for the implementation of sustainable conservation strategies in a threatened biogenic habitat.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"202 ","pages":"Article 106811"},"PeriodicalIF":3.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Environmental effects on abundance and size of harvested bivalve populations in intertidal shellfish grounds","authors":"José Daniel Cerdeira-Arias ,&nbsp;Jaime Otero ,&nbsp;Elena Barceló ,&nbsp;Guillermo del Río ,&nbsp;Aitor Freire ,&nbsp;Manuel García ,&nbsp;Gloria Portilla ,&nbsp;José Antonio Santiago ,&nbsp;Anxo Mena Rodríguez ,&nbsp;Miguel Ángel Nombela ,&nbsp;Xosé Antón Álvarez-Salgado","doi":"10.1016/j.marenvres.2024.106808","DOIUrl":"10.1016/j.marenvres.2024.106808","url":null,"abstract":"<div><div>Clams, razor clams and cockle are intertidal bivalve species collected on foot in the shellfish grounds of the Rías Altas (NW Spain). Spatio-temporal distribution of these bivalves are typically at the expenses of the environmental conditions of the region; however, the responses to the abiotic conditions are poorly understood. Using data from 6 species (<em>Ruditapes decussatus</em>, <em>Venerupis corrugata</em>, <em>Ruditapes philippinarum</em>, <em>Cerastoderam edule</em>, <em>Donax trunculus</em> and <em>Solen marginatus</em>) sampled in 51 intertidal shellfish grounds during 2007 and 2008, we characterized the influence of the environment (temperature, salinity, nutrient salts, suspended organic matter, or sediment granulometry and composition) on the distribution and size of these species through a comparative statistical analysis. Shellfish grounds were grouped according to their sediment and water characteristics revealing a land-ocean gradient and the influence of the geological imprint that separates bivalve grounds from West to East. Statistical models showed that <em>R. decussatus, V. corrugata</em> and <em>R. philippinarum</em> together with <em>C. edule</em> were more abundant in sites combining a strong marine influence with organic-rich finer sediments. However, each of those species also had different environmental niches mostly related to their particular sediment affinities, the proximity to the river mouth, and their physiological tolerances to temperature and salinity. <em>D. trunculus</em> was only found in outer exposed shellfish grounds, while <em>S. marginatus</em> abundance increased in muddy sediments. River distance was a sound descriptor of individual shell length and length variability with contrasting effects on the different species. Furthermore, slopes of length-weight relationships were steeper in autumn than in spring, and this allometry tended to be more positive in sites located closer to the rivers’ mouth, which had a higher organic matter C/N ratio. Overall, harvested intertidal bivalves had identifiable environmental preferences that influence their spatial distribution in abundance, body size, and allometric growth.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"202 ","pages":"Article 106808"},"PeriodicalIF":3.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Distinct impacts of microplastics on the carbon sequestration capacity of coastal blue carbon ecosystems: A case of seagrass beds","authors":"Xin Hou ,&nbsp;Changjun Li ,&nbsp;Yong Zhao ,&nbsp;Yike He ,&nbsp;Wentao Li ,&nbsp;Xiaotong Wang ,&nbsp;Xianhua Liu","doi":"10.1016/j.marenvres.2024.106793","DOIUrl":"10.1016/j.marenvres.2024.106793","url":null,"abstract":"<div><div>Seagrass beds, as an important coastal blue carbon ecosystem, are excellent at storing organic carbon and mitigating the impacts of global climate change. However, seagrass beds are under threat due to increased human activities and ubiquitous presence of microplastics (MPs) in marine environments. Bibliometric analysis shows that the distribution and accumulation of microplastics in seagrass beds has been widely documented worldwide, but their impacts on seagrass beds, particularly on carbon sequestration capacity, have not been given sufficient attention. This review aims to outline the potential impacts of MPs on the carbon sequestration capacity of seagrass ecosystems across five key aspects: (1) MPs act as sources of organic carbon, contributing to direct pollution in seagrass ecosystems; (2) Impacts of MPs on seagrasses and their epiphytic algae, affecting plant growth and net primary productivity; (3) Impacts of MPs on microorganisms, influencing production of recalcitrant dissolved organic carbon and greenhouse gas; (4) Impacts of MPs on seagrass sediments, altering the quality, structure, properties and decomposition processes of plant litters; (5) Other complex impacts on the seagrass ecosystems, depending on different behaviors of MPs. Latest progress in these fields are summarized and recommendations for future work are discussed. This review can provide valuable insights to facilitate future multidisciplinary investigations and encourage society-wide implementation of effective conservation measures to enhance the carbon sequestration capacity of seagrass beds.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"202 ","pages":"Article 106793"},"PeriodicalIF":3.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Artificial river flow regulation triggered spatio-temporal changes in marine macrobenthos of the Yellow River Estuary","authors":"Debin Sun ,&nbsp;Jiao Wang ,&nbsp;Qinglu Fu ,&nbsp;Linlin Chen ,&nbsp;Jing Chen ,&nbsp;Teng Sun ,&nbsp;Baoquan Li","doi":"10.1016/j.marenvres.2024.106804","DOIUrl":"10.1016/j.marenvres.2024.106804","url":null,"abstract":"<div><div>The Water Sediment Discharge Regulation (WSR) in the Yellow River transports a vast quantity of freshwater and materials to the Bohai Sea within 20 days, significantly altering the ambient environment of the estuary. To elucidate the ecological impacts of this typically artificial flood event, we investigated the benthic habitats and macrobenthic biodiversity within the Affected Core Area (ACA) influenced by this discharge. Our results show that: (1) The discharge created an area with extreme environmental conditions, extending from the southern estuary to Laizhou Bay. This led to a rapid transformation of the habitat, as evidenced by a significant increase in turbidity, ammonium, and silicate levels. Among these factors, nitrogen nutrients and pH were the dominant drivers of environmental filtration, shaping the macrobenthos community structure; (2) The changing habitat triggered spatial shifts in macrobenthos abundance based on the distance from the estuary. Compared to the northern estuary, species composition and <em>C</em>-diversity in the southern area decreased significantly. These changes collectively established a short-term biodiversity front in the estuary region; (3) Community stability declined, as evidenced by a 24.20% reduction in niche width for generalist species and a 90.91% shift in specialist species. Furthermore, the connectivity between species decreased, and the average path length of the network increased, resulting in a more fragmented community structure. Notably, some ecological patches dominated by generalist species (e.g. <em>Alpheus distinguendus</em>) emerged. These findings enhance our understanding of marine ecological responses to artificial flood events within the context of global environmental changes.</div></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":"202 ","pages":"Article 106804"},"PeriodicalIF":3.0,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}