Aquatic Ecology最新文献

{"title":"Insights into heterotrophic protozoa assemblages spatiotemporal distribution in urban-agricultural landscapes streams","authors":"María del Carmen Núñez,&nbsp;María Florencia Gutierrez,&nbsp;Diego Frau","doi":"10.1007/s10452-024-10155-w","DOIUrl":"10.1007/s10452-024-10155-w","url":null,"abstract":"<div><p>This study investigated the environmental variables that influence heterotrophic protozoan assemblages in streams located in urban-agricultural landscapes of Argentina and estimated their potential as water quality indicators through environmental optimum distribution calculations. We sampled nine streams across all four seasons, collecting data on relevant environmental variables and protozoans in the water. For the analysis, we compared richness and total abundance across seasons and among streams and then focused on dominant genera. We performed a canonical correspondence analysis, multiple regression models, and calculations of optimum and tolerance levels. A total of 109 taxa most of them belonging to ciliates were identified. Total density distribution among seasons (spring was different from the other seasons) and streams were variable. <i>Stentor</i> and <i>Zoothamnium</i> were associated with higher water flow and high chlorophyll-a (Chl-a) content. At the same time, <i>Paramecium</i>, <i>Blepharisma</i>, <i>Holophyra</i>, and <i>Litonotus</i> were linked to lower oxygen availability or higher organic matter concentrations. Results showed that <i>Pleuronema</i> and <i>Holophrya</i> had lower optimum temperature values than <i>Difflugia</i> and <i>Arcella</i>. For dissolved oxygen, <i>Holophrya</i> had a higher optimum value than <i>Litonotus</i> while for Chl-a content, <i>Stentor</i> and <i>Zoothamnium</i> had a higher optimum value than <i>Vorticella</i>. The other showed similar optimum values for soluble reactive phosphorus, water temperature, and biochemical oxygen demand (BOD₅), all displaying broad tolerance ranges. Results suggest that protozoa assemblages respond to environmental changes in lowlands streams, and optimum distribution values of some genera suggest that these groups could be used in the future to design water quality indexes.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"169 - 183"},"PeriodicalIF":1.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362198","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 ecology of planktonic harpacticoids (Harpacticoida: Copepoda) in a stressed tropical coastal ecosystem, Bay of Bengal, India","authors":"Md Anwar Nawaz,&nbsp;Mehraj ud din War,&nbsp;Gurunathan Baskar,&nbsp;Sivalingam Valliappan Meenakshi,&nbsp;Kandhasamy Sivakumar","doi":"10.1007/s10452-024-10154-x","DOIUrl":"10.1007/s10452-024-10154-x","url":null,"abstract":"<div><p>The ecological role of planktonic harpacticoid copepods within marine ecosystems remains understudied. While primarily benthic, a subset of these organisms exhibits pelagic lifestyles. This research investigates the relationship between environmental factors and planktonic harpacticoid communities at Marina Beach, Chennai, a coastal area impacted by pollution from the Adyar and Cooum rivers. Zooplankton samples and environmental data were collected monthly from January to December 2021. Among the seven observed harpacticoid species, <i>Longipedia weberi</i> and <i>Euterpina acutifrons</i> displayed dominance, with mean abundances of 178.2 ± 190.54 ind./m³ and 196.5 ± 155.8 ind./m³, respectively. Notably, the distributional pattern of <i>L. weberi</i> differed from that of <i>E. acutiforns</i>, with the former prevailing when micro-nutrient content in the water was high, particularly from June onwards. Regression analyses revealed a positive correlation between <i>L. weberi</i> abundance and nitrite and phosphate concentrations (R = 0.31 and 0.358, respectively). Furthermore, redundancy analysis indicated a close association between <i>L. weberi</i> and other nutrient parameters, suggesting its potential as an indicator species for coastal eutrophication along the Chennai coast. Throughout the study period, the diversity and distribution of harpacticoid copepods exhibited variations across different months.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"159 - 167"},"PeriodicalIF":1.7,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362009","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":"Correction: Tilapia venturing into high-salinity environments: A cause for concern?","authors":"Ana Clara Sampaio Franco,&nbsp;Valter M. Azevedo-Santos,&nbsp;Marluce Aparecida Mattos de Paula Nogueira,&nbsp;Tommaso Giarrizzo,&nbsp;Rachel Ann Hauser-Davis,&nbsp;Erick Cristofore Guimarães,&nbsp;Roger Henrique Dalcin,&nbsp;Marcelo Soeth,&nbsp;Matheus Oliveira Freitas,&nbsp;Áthila A. Bertoncini,&nbsp;Vinícius Abilhoa,&nbsp;Almir Manoel Cunico,&nbsp;Johnatas Adelir-Alves,&nbsp;Bianca Bentes,&nbsp;José Luís Costa Novaes,&nbsp;Mauricio Hostim-Silva,&nbsp;Jonas Rodrigues Leite,&nbsp;Vagner Leonardo Macêdo dos Santos,&nbsp;Jean Ricardo Simões Vitule","doi":"10.1007/s10452-024-10143-0","DOIUrl":"10.1007/s10452-024-10143-0","url":null,"abstract":"","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"393 - 394"},"PeriodicalIF":1.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-024-10143-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361798","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":"Salinity optimization for enhanced growth and biochemical performance of Saccostrea cucullata","authors":"Paria Akbary,&nbsp;Sachinandan Dutta,&nbsp;Salim Sharifian","doi":"10.1007/s10452-024-10148-9","DOIUrl":"10.1007/s10452-024-10148-9","url":null,"abstract":"<div><p>The bivalve industry faces significant financial losses due to fluctuating salinity levels, highlighting the need to determine the optimal salinity for <i>Saccostrea cucullata</i> cultivation. This study investigates how salinity affects growth, filtration rate, nutritional composition, and antioxidant status. Oysters, averaging 6.26 ± 0.82 cm in shell length and 62.70 ± 15.01 g in weight, were randomly divided into four groups (10 individual each) within 10 L containers with salinities of S20, S25, S30, and S35 PSU. Over eight weeks, they were fed <i>Chaetoceros</i> sp microalgae twice daily. Also, at one- and two-hour intervals, their density was again counted to determine the filtration rate. Fatty acid and amino acid compositions were analyzed using gas chromatography (GC) and high-performance liquid chromatography (HPLC), respectively. Antioxidant enzyme activities (superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx)) were measured by spectrophotometr. Filtration rates were measured at one- and two-hour intervals, with the highest rates observed at 30 and 35 PSU after one hour and at 35 PSU after two hours, significantly differing from other salinities (<i>P</i> &lt; 0.05). Analysis revealed that a salinity of 35 PSU resulted in elevated levels of several amino acids including arginine, alanine, taurine, threonine, serine, glutamic acid, tyrosine, phenylalanine, histidine, and valine compared to other levels (<i>P</i> &lt; 0.05). Additionally, 35 PSU showed the lowest levels of myristic acid (C14:0), palmitic acid (C16:0), and total saturated fatty acids (SFA), significantly differing from other salinities (<i>P</i> &lt; 0.05). In terms of monounsaturated fatty acids (MUFA), the highest levels of palmitoleic acid (C16:1) and total MUFA were found at a salinity of 35 PSU, with significant differences from other levels (<i>P</i> &lt; 0.05). Similarly, 35 PSU exhibited the highest total polyunsaturated fatty acids (PUFA) content, including linolenic acid (C18:3), arachidonic acid (C20:4), docosahexaenoic acid (DHA, C22:6), and eicosapentaenoic acid (EPA, C20:5), along with favorable ratios of n-3 to n-6 series fatty acids. Moreover, the lowest levels of CAT, GPx, and SOD were recorded at a salinity of 35 PSU (<i>P</i> &lt; 0.05). Overall, these findings suggest that a salinity of 35 PSU optimally enhances the filtration rate, nutritional profile, and antioxidant capacity of <i>S. cucullata</i>. These results underscore the significant influence of salinity on physiological and biochemical processes in this species, providing valuable insights for improved management and cultivation practices in the bivalve industry.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"67 - 81"},"PeriodicalIF":1.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362082","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":"Kinetic modelling and salinity tolerance in Chlorella vulgaris and Desmodesmus communis (Chlorophyta): insights into differential growth responses","authors":"Mohamed Abbas,&nbsp;Lixiao Ni,&nbsp;Cunhao Du","doi":"10.1007/s10452-024-10153-y","DOIUrl":"10.1007/s10452-024-10153-y","url":null,"abstract":"<div><p>Microalgae are increasingly recognized for their potential in renewable energy, nutrition, and wastewater treatment applications. In this study, the effects of salinity on the growth and productivity of two microalgal species were examined, with a focus on their responses to salinity variations ranging from 0 to 10 g l⁻¹. A novel aspect of this research is the employment of salinity as the sole limiting factor in kinetic growth models, a less conventional approach that has been found to effectively delineate the growth patterns of both species. This method allows for the exploration of alternative substrates beyond the commonly used nutrients and light, thus enhancing the understanding of the diverse factors influencing microalgal growth. It was observed that salinity levels above 2 g l⁻¹ inhibited the growth of <i>Chlorella vulgaris</i> Beijerinck 1890, indicating a preference for freshwater and low salinity conditions. In contrast, resilience to salinity up to 5 g l⁻¹ was demonstrated by <i>Desmodesmus communis</i> (E.Hegewald) E.Hegewald 2000, suggesting its suitability for cultivation in brackish or moderately saline conditions. Despite some reports of high salinity tolerance in <i>C. vulgaris</i>, variability in halotolerance among different strains was revealed by this research, highlighting the importance of meticulous strain selection. The modified Richards model was identified as the most appropriate kinetic model for both species. These findings underline the necessity for species-specific models to accurately predict microalgal growth under saline conditions, contributing to a better understanding of microalgal salinity tolerance and aiding in the optimization of strain selection and cultivation for diverse applications, including saline wastewater treatment.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"145 - 158"},"PeriodicalIF":1.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362077","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":"Deciphering the transcriptional regulatory networks of FOX genes in nitrite-induced spleen injury in largemouth bass","authors":"Yan Sun,&nbsp;Dayong Xu,&nbsp;Xi Chen,&nbsp;Junming Zhou,&nbsp;Changwei Jiang,&nbsp;Zhiqiu Huang,&nbsp;Dongming Qi","doi":"10.1007/s10452-024-10132-3","DOIUrl":"10.1007/s10452-024-10132-3","url":null,"abstract":"<div><p>Nitrite accumulation in aquatic habitats can induce toxicity and cause spleen injury in fish. This study identified forkhead box (FOX) transcription factors involved in the splenic response to nitrite stress in largemouth bass through transcriptomic analysis. Phylogenetic analysis classified 93 FOX genes into 17 subgroups, with FOXN, FOXP and FOXO showing significant upregulation after nitrite treatment. Further analysis identified msFOX_29, msFOX_81, msFOX_89 and msFOX_7 as key FOX transcriptional regulators mediating spleen injury. Co-expression network analysis revealed that these FOX transcription factors may regulate downstream targets involved in pathways such as apoptosis (CASP8), immune cell infiltration (CD34), protein synthesis (UBA52, FARSB), signal transduction (PPP2CB), and metabolism (GUK1). These targets contained FOX binding sites in promoter regions and were upregulated under nitrite stress. Additionally, FOX expression was found correlated with changes in immune cell infiltration. Cross-species analyses revealed phylogenetic conservation and functional importance of FOXN, FOXP and FOXO subgroups in the splenic responses more fish species. Our study delineates the FOX transcriptional regulatory networks mediating nitrite-induced spleen injury in largemouth bass and provides insights into nitrite toxicity mechanisms in fish.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"1 - 20"},"PeriodicalIF":1.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362157","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":"Water quality of Balili River before, during and after COVID: lessons learned and ways forwards for tropical river remediation","authors":"Fernie D. SitSit,&nbsp;Romeo M. Dizon,&nbsp;Jones T. Napaldet","doi":"10.1007/s10452-024-10151-0","DOIUrl":"10.1007/s10452-024-10151-0","url":null,"abstract":"<div><p>Improvement in water quality of several rivers was noted during COVID lockdowns by several studies but no report was dedicated to trace the water quality after COVID. Our study observed the water quality of Balili River, Philippines from 2018–2023 to address this data gap and learn lessons and ways forward towards the attainment of SDG 6 Water and Sanitation. The river exhibited significant improvement during COVID at TSS, color, DO, BOD, PO4 and Cl. The cumulative parameters namely water quality index and comprehensive pollution index showed that the water quality of Balili River improved during COVID at 27–40% but deteriorated again after COVID, though not as polluted as the pre-COVID state. The fecal coliform got worse during COVID but drastically improved after COVID. The water quality generally is worst during dry season then improves in the rainy months due to dilution from rain. These results show that upland tropical rivers, particularly in the case of Balili River, Benguet, Northern Philippines has a natural means of purification namely dilution from rain. Hence, the floating constructed wetland could be implemented during dry months starting from November to May. During heavy rains, the floating constructed wetland could be allowed to be swept downstream, allowing dilution as the next mode of remediation. Then after the rainy season, another floating constructed wetland would be established for another cycle.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"107 - 124"},"PeriodicalIF":1.7,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362227","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":"Enantioselective effects of dinotefuran on physiological parameters in Rana nigromaculata tadpoles","authors":"Fangze Li,&nbsp;Yu Wang,&nbsp;Xiaohuan Wang,&nbsp;Hui Jiao,&nbsp;Lulu Ran,&nbsp;Ping Lu","doi":"10.1007/s10452-024-10150-1","DOIUrl":"10.1007/s10452-024-10150-1","url":null,"abstract":"<div><p>Dinotefuran possesses promising prospects, but poses a threat to the health of organisms in aquatic environment. In this study, the enantioselective toxicity effects of dinotefuran on <i>Rana nigromaculata</i> tadpoles were investigated. Acute toxicity tests for 96 h showed that <i>R</i>-(−)-dinotefuran had a more significant toxic effect on tadpoles than <i>Rac</i>-dinotefuran, which was greater than that of <i>S</i>-(+)-dinotefuran. In the toxicity assays with 0.2 and 2 mg/L dinotefuran for 28 d, noticeable changes in oxidative stress induced by <i>Rac-</i>dinotefuran and the two enantiomers were observed. The results of the growth parameters indicated that the development of <i>R. nigromaculata</i> tadpoles was inhibited to a certain extent, and the order was <i>R</i>-(-)-dinotefuran &gt; <i>Rac</i>-dinotefuran &gt; <i>S-</i>(+)<i>-</i>dinotefuran. Furthermore, the determination of triiodothyronine (T3) and thyroxine (T4), and the expression levels of corresponding genes (<i>dio2, dio3, trα and trβ</i>), demonstrated that <i>R</i>-(-)-dinotefuran and <i>Rac</i>-dinotefuran caused endocrine disruption of the thyroid system and delayed the development and metamorphosis of tadpoles, but <i>S-</i>(+)-dinotefuran had little effect, which was basically consistent with the results of acute toxicity and growth parameter assays. The results provide a new theoretical basis for assessing the environmental risk posed by chiral pesticides to aquatic nontargeted organisms.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"95 - 106"},"PeriodicalIF":1.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362195","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":"Succession of bacterial community during microbially driven cyanobacterial organic matter degradation and its relationship to water quality in Taihu Lake, China","authors":"Jing Chen,&nbsp;Yongqiang Zhou,&nbsp;Yunlin Zhang,&nbsp;Quanzhong Guo,&nbsp;Shulan Zhang,&nbsp;Guanghuan Ge","doi":"10.1007/s10452-024-10152-z","DOIUrl":"10.1007/s10452-024-10152-z","url":null,"abstract":"<div><p>Anthropogenic eutrophication continuously degrades aquatic ecosystems and has led to a high frequency of massive cyanobacterial blooms in Taihu Lake since 1980. After bloom-forming cyanobacteria begin to disappear, substantial cyanobacterial scum accumulates and is degraded by microorganisms along the lakeshore. Several studies have revealed that cyanobacterial decomposition alters bacterial composition. However, the differences in responses among free-living and particle-attached bacteria to lake microbial community succession and the transition mechanism from one life strategy to another during cyanobacterial biomass and cyanobacteria-derived dissolved organic matter degradation remain unclear. This study investigated the microbial dynamics of cyanobacterial organic matter degradation over 61 days and revealed that complex interactions between particle-attached bacteria and cyanobacterial organic matter resulted in stage-specific changes in the chemical properties of water and a significant succession of the particle-attached bacterial community structure. As cyanobacteria biomass decayed, partial particle-attached bacteria transitioned into free-living bacteria. Successive free-living and particle-attached bacterial communities play important roles in driving dynamic variations in the chemical properties of water. This study provides new insights into the ecological processes and mechanisms governing the shift in bacterial community assembly between free-living and particle-attached bacteria during the post-bloom period in the Lake Taihu watershed.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"125 - 144"},"PeriodicalIF":1.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362204","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":"Assessment of heavy metal ecological risk in typical seagrass beds of the China Yellow Sea","authors":"Sai Wang,&nbsp;Jing Wen,&nbsp;Tuan-Qi Guo,&nbsp;Hong-Jin Zhang,&nbsp;Yong-Duo Song,&nbsp;Guo-Ping Fu,&nbsp;Tuan-Tuan Wang","doi":"10.1007/s10452-024-10149-8","DOIUrl":"10.1007/s10452-024-10149-8","url":null,"abstract":"<div><p>As a major parts of marine organism, seagrass exhibit crucial role in sustaining balance of marine ecosystem. However, the escalating development of urban industry may bring potential pollution risk to seagrass. In order to make a comprehensive understand of the pollution level of heavy metals and their environmental risk in seagrass, totally four seagrass beds from seashore of Yellow Sea were selected in this study. The concentration of typical heavy metals in seagrass, seawater, and sediment were determined and their ecological risk in different seagrass beds were further evaluated. In regards to the concentration of heavy metals in sediments and seawater, our results indicated that Zn exhibits the highest concentration and then decreased in order of Cu, Pb and Cd. However, the average concentration of these metals are not exceed the first-class national quality standard of sediments and water. Significant differences of heavy metal concentration in seagrass are found among different sampling sites. Furthermore, the heavy metals accumulated in the aboveground tissues of seagrass are found higher than those in underground tissues. The risk assessment in the study area show that although no significance pollution risk is found for each element, a high risk level of Cd with <i>E</i>_<i>i</i> (ecological hazard index of element <i>i</i>) value of 156.9 in seagrass beds is observed, which was also proved by the value of risk indices (<i>IR</i>). The value of <i>I</i>_geo (Geoaccumulation index) in seagrass beds decrease in order of Cd &gt; Pb &gt; Zn &gt; Cu. The results of this study are of considerable significant for the protection of seagrass ecosystem in Yellow Sea.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 1","pages":"83 - 94"},"PeriodicalIF":1.7,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362186","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}