Ecohydrology & Hydrobiology最新文献

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Abundance and community structure of comammox bacteria in the rhizosphere of aquatic plants in an urban eutrophic lake 城市富营养化湖泊中水生植物根瘤菌的丰度和群落结构
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2024.02.008
Mingzhi Zhou , Rong Du , Ziyan Lei , Shuang Liu , Jianwei Zhao
{"title":"Abundance and community structure of comammox bacteria in the rhizosphere of aquatic plants in an urban eutrophic lake","authors":"Mingzhi Zhou ,&nbsp;Rong Du ,&nbsp;Ziyan Lei ,&nbsp;Shuang Liu ,&nbsp;Jianwei Zhao","doi":"10.1016/j.ecohyd.2024.02.008","DOIUrl":"10.1016/j.ecohyd.2024.02.008","url":null,"abstract":"<div><div><span><span>Different from ammonia oxidizing archaea<span> and ammonia oxidizing bacteria, </span></span>complete ammonia oxidation<span> (comammox) bacteria can directly oxidize ammonia to nitrate. Hence, it is necessary to clarify the distribution of comammox bacteria in water bodies<span><span>. Aquatic plants, whose roots can provide favorable conditions for nitrification, are often used to remediate polluted lakes. This study investigated the community structure of comammox bacteria in the </span>rhizosphere<span> of four aquatic plants in Lake Yuehu, an urban eutrophic lake. The results showed that the abundance of comammox bacteria in the near-rhizosphere of most aquatic plants was higher than that in the far-rhizosphere, suggesting that the aquatic plants promote the rhizosphere abundance of comammox bacteria in eutrophic lakes. Both clade A and clade B of comammox bacteria were present in the Lake Yuehu, with the former showing greater dominance. Co-occurrence network analysis revealed that two subclades of clade A had opposite network parameters in the near-rhizosphere and far-rhizosphere. Redundancy analysis (RDA) analysis showed that OM, pH and NO</span></span></span></span><sub>2</sub><sup>--</sup><span><span><span>N of sediment were correlated with the abundance of comammox bacteria, which were the main environmental factors affecting the growth of this microorganism. These results suggest that aquatic plants affected the distribution and diversity of comammox bacteria in sediments, which may result in changes in the process of ammonia </span>oxidation and </span>eutrophication in water.</span></div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 206-214"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140044858","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}
引用次数: 0
Allometric determinations in the early development of Schoenoplectus californicus to monitor nutrient uptake in constructed wetlands 测定加州蝶形花早期发育的等比数列,以监测人造湿地的营养吸收情况
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2023.11.013
Wilma A. Arce , Dario Achá
{"title":"Allometric determinations in the early development of Schoenoplectus californicus to monitor nutrient uptake in constructed wetlands","authors":"Wilma A. Arce ,&nbsp;Dario Achá","doi":"10.1016/j.ecohyd.2023.11.013","DOIUrl":"10.1016/j.ecohyd.2023.11.013","url":null,"abstract":"<div><div>Studies of <em>Schoenoplectus californicus</em><span> focus on the development of aboveground biomass estimations. However, below-ground assessments are important for net primary productivity monitoring in wetlands. This study aims to monitor nutrient assimilation by developing allometric models for above and below-ground biomass estimation of </span><em>S. californicus</em><span> in constructed wetlands</span><em>.</em> The plants we evaluated were grown <em>in vitro</em>, allowing us to control the experimental conditions. The results show that shoot length and apex diameter are significant parameters for building our models. Two non-destructive allometric equations were established to predict above and below-ground biomass and the models were highly significant (R<sup>2</sup> = 0.79 and 0.49, <em>p</em> &lt; 0.001). During active growth, both the aboveground and below-ground components showed to be essential for removing nutrients from the water. Both non-destructive equations allowed the monitoring of biomass accumulation in constructed wetlands for seven months, demonstrating that this low-cost method can be used to evaluate the performance of wetlands for wastewater.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 34-41"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138691743","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}
引用次数: 0
The synergistic effect of abiotic microbes in a standardized aquaponics system for the production of high-value fish and plant biomass 标准化鱼菜共生系统中非生物微生物对生产高价值鱼类和植物生物量的协同效应
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2024.01.005
Karuppusetti Jayaprakash , Manickam Muthuselvam , Karuppaiah Nanthini Devi , Perumal Santhanam , Sundarraj Dinesh Kumar , Shanmugam Gunabal , Nagarajan Krishnaveni , John Roopavathy , Annamalai Aravinth , Sundaramoorthy Dhanasundaram , Pachiappan Perumal
{"title":"The synergistic effect of abiotic microbes in a standardized aquaponics system for the production of high-value fish and plant biomass","authors":"Karuppusetti Jayaprakash ,&nbsp;Manickam Muthuselvam ,&nbsp;Karuppaiah Nanthini Devi ,&nbsp;Perumal Santhanam ,&nbsp;Sundarraj Dinesh Kumar ,&nbsp;Shanmugam Gunabal ,&nbsp;Nagarajan Krishnaveni ,&nbsp;John Roopavathy ,&nbsp;Annamalai Aravinth ,&nbsp;Sundaramoorthy Dhanasundaram ,&nbsp;Pachiappan Perumal","doi":"10.1016/j.ecohyd.2024.01.005","DOIUrl":"10.1016/j.ecohyd.2024.01.005","url":null,"abstract":"<div><div>Aquaponics is an attempt to control water quality such that all living beings (fish, plants, and bacteria) can live. In this study, the tilapia fish, <em>Oreochromis niloticus</em>, and the plants, mustard (<em>Brassica nigra</em>) and millet (<em>Pennisetum glaucum</em>), were raised in a low-cost aquaponics system (Nutrient Film Technique or NFT). The study also examined the microbial load and various water quality parameters. According to the USEPA rules, the water quality attributes of NFT have to be stable. During different culture periods, the growth rate of fish in the NFT system was gradually increased significantly (<em>p</em> &lt; 0.01). The ANOVA analysis revealed that the recorded biochemical-values of NFT-raised fishes were less significant (<em>p</em> &lt; 0.04) (than control fishes). When compared to the NFT-grown mustard plant, the biochemical content of NFT-raised millet plant was significantly lower (<em>p</em> &lt; 0.003). Currently, the phytochemical content has been found to be high in NFT grown plants. Chlorophyll 'a' level was high (8.17 mg) in NFT and low (2.34 mg) in controls. The maximum chlorophyll 'b' level in plants produced using NFT was 8.45 mg, whereas the lowest (0.84 mg) was recorded in control plants. Carotenoid concentration was high (707 mg) in plants cultivated using NFT, but low (239 mg) in control plants. Furthermore, when compared to the control (24 colonies), the NFT produced the greatest number of microbial colonies (57 colonies) at 10<sup>−4</sup>dilution. Thus the adoption of NFT techniques shows its usefulness in terms of reduced cost and water usage and the reduction in microbial load (when fish and plants are raised together). Therefore, this research-output supports the potential of NFT-technology as an integrated aquaculture approach for future.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 74-89"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139893045","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}
引用次数: 0
Data limitations in developing countries make river restoration planning challenging. Study case of the Cesar River, Colombia 发展中国家的数据限制使河流修复规划工作面临挑战。哥伦比亚塞萨尔河研究案例
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2024.01.012
Stefany P. Vega , Ronald R. Gutierrez , Aymer Y. Maturana , Frank Escusa
{"title":"Data limitations in developing countries make river restoration planning challenging. Study case of the Cesar River, Colombia","authors":"Stefany P. Vega ,&nbsp;Ronald R. Gutierrez ,&nbsp;Aymer Y. Maturana ,&nbsp;Frank Escusa","doi":"10.1016/j.ecohyd.2024.01.012","DOIUrl":"10.1016/j.ecohyd.2024.01.012","url":null,"abstract":"<div><div>Past research has mapped the limitations of water quality data in developing countries. This contribution reports a detailed assessment of the status of water quality data of the Cesar River, one of the main tributaries of the Magdalena River, which is regarded as the largest river system in Colombia. Our assessment indicates that the data is limited (in terms of length of record and resolution spatial) and exhibits significant information gaps, and that it is collected through a network of very sparse ground stations with deficient density. Subnational permissible limits for the five main water quality parameters (i.e., pH, TP, TN, DO, TSS) determine that water has reached worrisome levels of pollution. The data limitations does not allow for establishing the influence of natural (e.g., soil erosion) or anthropogenic processes such as wastewater discharges and in-channel sand mining into water quality. Since Colombia is a member of the Pacific Alliance and the Organisation for Economic Co-operation and Development (OECD) the associated supranational water quality regulatory frameworks are analyzed as they may guide the permissible limits and targets in the coming years. A freely accessible database of water quality observations between the years 2004–2020 of the Cesar River accompanies this contribution. We believe that it potentially constitutes a scientific input to plan for restoring the ecosystem services of the Cesar. We also believe this study depicts a representative case of the status of several rivers from the Latin American sphere and other developing countries.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 138-154"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140044758","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}
引用次数: 0
Influence of the microtopography of patagonian peatbogs on the fluxes of greenhouse gasses and dissolved carbon in porewater 巴塔哥尼亚泥炭沼泽的微地形对温室气体和孔隙水中溶解碳通量的影响
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2024.01.013
Mariano S. Iseas , M. Florencia Rossi , Marie-Claire Aravena Acuña , Verónica A. Pancotto
{"title":"Influence of the microtopography of patagonian peatbogs on the fluxes of greenhouse gasses and dissolved carbon in porewater","authors":"Mariano S. Iseas ,&nbsp;M. Florencia Rossi ,&nbsp;Marie-Claire Aravena Acuña ,&nbsp;Verónica A. Pancotto","doi":"10.1016/j.ecohyd.2024.01.013","DOIUrl":"10.1016/j.ecohyd.2024.01.013","url":null,"abstract":"<div><div><span>Peatlands play an important role in global carbon cycling, as they act as a natural sink of carbon dioxide (CO</span><sub>2</sub>) or as a source of methane (CH<sub>4</sub><span>). The influence of microtopography<span> (lawns and hummock-hollow complexes) in the biogeochemical dynamics of dissolved organic and inorganic carbon (DOC and DIC) and dissolved CH</span></span><sub>4</sub> and CO<sub>2</sub> is generally miss-considered. Southernmost Patagonia has huge areas of pristine peatlands, which are still in a largely natural state with scarce anthropogenic influence. In this study we provide foundational insights into the dynamics of greenhouse gasses (GHGs) and DOC in <span><em>Sphagnum</em></span> dominated peatlands of Southern Patagonia, assessing the impact of microtopography on these dynamics. The stocks of dissolved GHGs and DOC in hummock-hollows complex and lawns were analysed at three depths (25, 50, and 75 cm) in four ombrotrophic peatbogs. CH<sub>4</sub>, N<sub>2</sub>O and CO<sub>2</sub><span> fluxes, net ecosystem exchange (NEE) and gross primary productivity (GPP) were also studied. CO</span><sub>2</sub> and CH<sub>4</sub> fluxes were strongly affected by microtopography. Hummock-hollows showed higher CO<sub>2</sub> fluxes, and temperature and radiation were the main drivers for respiration and GPP, respectively. In addition, in this microtopography, higher DOC concentrations were observed at the top depth. In contrast, lawns acted as a source of CH<sub>4</sub>, with higher emission rates and high dissolved GHGs concentration throughout the depth profile.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 155-165"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140167399","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}
引用次数: 0
Bathymetric modelling for long-term monitoring of water dynamics of Ramsar-listed lakes using inundation frequency and photon-counting LiDAR data 利用淹没频率和光子计数激光雷达数据进行ramsar列表湖泊水动力学长期监测的水深模型
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2023.10.003
Zhenyu Zhang, Xiaoye Liu
{"title":"Bathymetric modelling for long-term monitoring of water dynamics of Ramsar-listed lakes using inundation frequency and photon-counting LiDAR data","authors":"Zhenyu Zhang,&nbsp;Xiaoye Liu","doi":"10.1016/j.ecohyd.2023.10.003","DOIUrl":"10.1016/j.ecohyd.2023.10.003","url":null,"abstract":"<div><div>Accurate information on lake bathymetry and water dynamics is crucial for comprehending the intricate ecological processes in wetland ecosystems, which in turn can inform effective conservation and management strategies. However, obtaining such information can be challenging, particularly in remote areas with limited data. This study presents a way to leverage inundation frequency and ICESat-2 photon-counting LiDAR data to develop bathymetric models for Ramsar-listed lakes in a semi-arid region of Australia. Based on developed bathymetric models, monthly time series of water areas, levels and volumes were derived, providing a long-term view of the water dynamics of the two lakes from1987-2021. This is the first time that such detailed bathymetry and long-term water dynamics have been established for Ramsar-listed lakes in Australia's Outback. The findings of this study provide the most up-to-date information on the long-term trends of the Ramsar-listed lakes in the region and highlight the lakes’ prolonged dry spells when drought conditions prevailed through much of the 2000s and the 2010s as denoted by rainfall deficiencies and high evaporation. The outcome of this study serves as a valuable baseline for understanding the historical and ongoing status of these Ramsar-listed lakes in a warming and drying climate and contributes to the development of strategic plans to fulfill international obligations for wetland protection under the Ramsar Convention.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 10-22"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135760265","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}
引用次数: 0
The role of planktonic filtrators in the distribution of metals in the water of semi-closed lagoon (southern Baltic) 浮游滤食者在半封闭泻湖(波罗的海南部)水中金属分布中的作用
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2024.02.004
Magdalena Bełdowska , Justyna Kobos , Lidia Nawrocka , Dorota Sieńska , Wojciech Chwiałkowski , Agata Rychter , Jerzy Bolałek , Ryszard Kornijów
{"title":"The role of planktonic filtrators in the distribution of metals in the water of semi-closed lagoon (southern Baltic)","authors":"Magdalena Bełdowska ,&nbsp;Justyna Kobos ,&nbsp;Lidia Nawrocka ,&nbsp;Dorota Sieńska ,&nbsp;Wojciech Chwiałkowski ,&nbsp;Agata Rychter ,&nbsp;Jerzy Bolałek ,&nbsp;Ryszard Kornijów","doi":"10.1016/j.ecohyd.2024.02.004","DOIUrl":"10.1016/j.ecohyd.2024.02.004","url":null,"abstract":"<div><div><span><span><span>For decades of human activity, particularly in the second half of the 20th century a large load of metals has been deposited in sediments of water bodies<span>. It is important to identify processes determining their origin, pathways, distribution, and seasonal dynamics. This was studied in the Vistula Lagoon, second largest lagoon of the southern Baltic. A significant effect of wind on the magnitude and variability of concentrations of metals in the shallow lagoon was observed. It determined the supply of the elements from land (mainly Mn, Zn, U, Co) and distribution within salty Baltic waters (Co, V) from more polluted areas. Another process affecting circulation of metals in estuaries was </span></span>flocculation<span>. It contributed to vertical transport of Pb, Al, Fe, Mn, Cd, and Be to the sediment surface. Changes in their concentrations were observed, largely due to their remobilisation from land and sediments. It may consequently allow their inclusion into the food-web, particularly: Pb, U, Co, Be, Zn, Se, Cr, Sr, Ca, Al, Fe, Ni and Mg. The amount and type of accumulated metals in the cells were different for each </span></span>phytoplankton group and cell size. The critical role was played by cyanobacteria algae </span><span><em>Oscillatoriales</em></span>. Not consumed degrading organic matter becomes a source of dissolved Pb, Ni and Mn in water.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 172-183"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140044753","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}
引用次数: 0
Assessing the Impact of Human-Induced and Climate Change-Driven Streamflow Alterations on Freshwater Ecosystems 评估人类和气候变化驱动的河流变化对淡水生态系统的影响
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2023.09.003
Seo-Yeon Park , Hyeon-Tae Moon , Jong-Suk Kim , Joo-Heon Lee
{"title":"Assessing the Impact of Human-Induced and Climate Change-Driven Streamflow Alterations on Freshwater Ecosystems","authors":"Seo-Yeon Park ,&nbsp;Hyeon-Tae Moon ,&nbsp;Jong-Suk Kim ,&nbsp;Joo-Heon Lee","doi":"10.1016/j.ecohyd.2023.09.003","DOIUrl":"10.1016/j.ecohyd.2023.09.003","url":null,"abstract":"<div><div>Streamflow is critical and master variable for maintaining healthy and restorative processes in freshwater ecosystems. However, human-induced dam construction and climate change have significantly altered the flow regime and disrupted hydrological conditions. Consequently, protecting river ecosystems has become a crucial goal, necessitating environmental streamflow assessments. This study evaluates the impact of dam construction and climate change on the flow regime and environmental flow in the Gamcheon Basin, Korea. It focuses on two fish species, the dominant <em>Zacco platypus</em> and endangered <em>Squalidus gracilis majimae</em>, using an ecosystem function model to determine the appropriate environmental flow. GIS analysis was also employed to quantify the habitat connectivity within the assessed environmental streamflow. The study provides key insights into preserving streamflow and revitalizing river ecosystems, highlighting the need for a broader multi-species analysis for environmental flow determination and conservation. By determining the appropriate environmental flow and analyzing habitat connectivity, effective strategies can be developed for protecting and maintaining healthy freshwater ecosystems in a changing climate.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 1-9"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347792","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}
引用次数: 0
Seasonal dynamics of phytoplankton and zooplankton communities in the estuarine Elblag Bay (Vistula Lagoon, southern Baltic) dominated by floating-leaved plants 以浮叶植物为主的埃尔布拉格湾(波罗的海南部维斯瓦泻湖)河口浮游植物和浮游动物群落的季节动态
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2024.02.009
Maciej Karpowicz , Ryszard Kornijów , Jolanta Ejsmont-Karabin , Lidia Nawrocka , Justyna Kobos , Aneta Jakubowska , Krzysztof Grzonkowski
{"title":"Seasonal dynamics of phytoplankton and zooplankton communities in the estuarine Elblag Bay (Vistula Lagoon, southern Baltic) dominated by floating-leaved plants","authors":"Maciej Karpowicz ,&nbsp;Ryszard Kornijów ,&nbsp;Jolanta Ejsmont-Karabin ,&nbsp;Lidia Nawrocka ,&nbsp;Justyna Kobos ,&nbsp;Aneta Jakubowska ,&nbsp;Krzysztof Grzonkowski","doi":"10.1016/j.ecohyd.2024.02.009","DOIUrl":"10.1016/j.ecohyd.2024.02.009","url":null,"abstract":"<div><div><span><span>Lagoons and estuaries, as transitional ecosystems between freshwater and marine environments, are characterized by exceptionally strong fluctuations in abiotic and </span>biotic factors. This study aimed to present the seasonal succession of </span>phytoplankton<span> and zooplankton and their interactions in highly variable, shallow estuarine Elblag Bay dominated by floating-leaved macrophytes. The ecosystem experiences temporary shifts between freshwater and brackish water due to the seasonal influx of freshwater from the river during winter and spring, and the substantial inflow of brackish water during summer and autumn. The seasonal changes of plankton in the bay were driven by several factors, among which the most important were water temperature, periodic brackish water inflow, and development of aquatic vegetation. After winter, phytoplankton began to develop first (March), followed by rotifers (April) and crustaceans (May). At the beginning of summer, zooplankton biomass decreased, which could favored the development of phytoplankton, however, the intense growth of algae was limited by shading by plant canopies and nutrient competition between macrophytes and phytoplankton. The development of vegetation was accompanied by an increase in the species richness and diversity of crustacean zooplankton with many plant-associated species. The results of our research indicate that the periodically changing habitat complexity (macrophytes, salinity) in the estuary bay limits the intense development of plankton but increases its diversity.</span></div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 215-224"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140405074","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}
引用次数: 0
Comparative investigation provides further insights on how riparian deforestation and different land uses impact the distribution of freshwater macroinvertebrates in Nigerian streams 比较调查进一步揭示了河岸森林砍伐和不同土地利用如何影响尼日利亚溪流中淡水大型无脊椎动物的分布。
IF 2.7 4区 环境科学与生态学
Ecohydrology & Hydrobiology Pub Date : 2025-01-01 DOI: 10.1016/j.ecohyd.2024.01.006
O.T. Akinpelu , F.O. Arimoro , A.V. Ayanwale , V.I. Chukwuemeka , A.M. Adedapo , E.O. Akindele
{"title":"Comparative investigation provides further insights on how riparian deforestation and different land uses impact the distribution of freshwater macroinvertebrates in Nigerian streams","authors":"O.T. Akinpelu ,&nbsp;F.O. Arimoro ,&nbsp;A.V. Ayanwale ,&nbsp;V.I. Chukwuemeka ,&nbsp;A.M. Adedapo ,&nbsp;E.O. Akindele","doi":"10.1016/j.ecohyd.2024.01.006","DOIUrl":"10.1016/j.ecohyd.2024.01.006","url":null,"abstract":"<div><div><span>Riparian forest<span><span> loss and various land use impacts on macroinvertebrate<span> communities in Nigerian streams remain poorly understudied. To fill this knowledge gap, a study was conducted on five streams in the southwest ecoregion of Nigeria between December 2019 and October 2021. A total of 2,077 macroinvertebrates were sampled, comprising 16 orders, 40 families, and 80 species. Aquatic insects were the most abundant, constituting 85 % of species and 73.13 % of individuals. Other specimens included </span></span>Mollusca<span><span>, Crustacea, Arachnida<span>, and Annelida. Notably, Olumirin stream exhibited the highest macroinvertebrate abundance, including the stress-sensitive Ephemeroptera-Plecoptera-Trichoptera (EPT) members. The site also had the highest degree of naturalness, widest channel and dissolved oxygen (DO), but lowest electrical conductivity (EC) and total dissolved solids (TDS) compared to the other streams (Abirunmu, Awoosun, Mogimogi, and Aboto), that harbored facultative and stress-tolerant species, indicating varying degrees of disturbances. The bivariate regression analysis confirms that riparian </span></span>deforestation<span> and land use impact macroinvertebrate distribution in streams as there was an inverse relationship between EPT abundance and forest cover. Also, DO positively correlates with EPT taxa richness but inversely correlates with Coleoptera richness and Hemiptera abundance. As a result, Olumirin stream is proposed as a benchmark for evaluating freshwater ecological integrity in the region. Given the escalating </span></span></span></span>anthropogenic activities in the tropics, urgent collaborative efforts are required to safeguard freshwater biodiversity, protect the riparian corridor of Olumirin stream, and restore impaired streams in the region.</div></div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"25 1","pages":"Pages 90-105"},"PeriodicalIF":2.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139678842","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}
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