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JOURNAL ARTICLE
Nan Zang, Guozhi Cao, Yanxue Xu, Yu Feng, Zesheng Xu, Xiafei Zhou, Yunjie Liao
The precise assessment of a water body's eutrophication status is essential for making informed decisions in water environment management. However, conventional approaches frequently fail to consider the randomness, fuzziness, and inherent hidden information of water quality indicators. These would result in an unreliable assessment. An enhanced method was proposed for the eutrophication assessment under uncertainty in this study. The multi-dimension gaussian cloud distribution was introduced to capture the randomness and fuzziness...
April 25, 2024: Environmental Science and Pollution Research International
#2
JOURNAL ARTICLE
Keheng Yan, Fen Guo, Martin J Kainz, Stuart E Bunn, Feilong Li, Wei Gao, Xiaoguang Ouyang, Yuan Zhang
While eutrophication has led to serious habitat degradation and biotic shifts in freshwater ecosystems, most current studies have focused on changes in community assemblages, with few considering the effect of eutrophication on food webs. We conducted a field study in subtropical headwater streams with a gradient of nutrient levels to examine the effect of increasing water nutrients on food webs by using the long-chain polyunsaturated fatty acid eicosapentaenoic acid (EPA) as a measure of the nutritional quality of food...
April 22, 2024: Science of the Total Environment
#3
JOURNAL ARTICLE
Ámbar Cerda, Macarena Gonzalez, Carolina Rodríguez, Heylin González, Jennyfer Serrano, Eduardo Leiva
Nitrogen pollution has been increasing with the development of industrialization. Consequently, the excessive deposition of reactive nitrogen in the environment has generated the loss of biodiversity and eutrophication of different ecosystems. In 2005, a Feammox process was discovered that anaerobically metabolizes ammonium. Feammox with the use of hollow fiber membrane bioreactors (HFMB), based on the formation of biofilms of bacterial communities, has emerged as a possible efficient and sustainable method for ammonium removal in environments with high iron concentrations...
April 22, 2024: Chemosphere
#4
JOURNAL ARTICLE
Snatashree Mohanty, Anirban Paul, Sagar Banerjee, K V Rajendran, Gayatri Tripathi, Pratap Chandra Das, Pramoda Kumar Sahoo
No water body is resilient to afflicts of algal bloom, if goes unmanaged. With the increasing trend of intensification, eutrophication and climate change, Labeo rohita (rohu) is highly anticipated to suffer from the deleterious effects of bloom and eventually its toxins. A comprehensive study was conducted to understand the toxicopathological effects of microcystin-LR (MC-LR) in rohu following intraperitoneal injection of 96 h-LD50 dose i.e., 713 μg kg-1 . Substantial changes in micro- and ultrastructural level were evident in histopathology and transmission electron microscope (TEM) study...
April 22, 2024: Chemosphere
#5
JOURNAL ARTICLE
Zhiyuan Wang, Qiuwen Chen, Jianyun Zhang, Huacheng Xu, Lingzhan Miao, Tao Zhang, Dongsheng Liu, Qiuheng Zhu, Hanlu Yan, Dandan Yan
Both cyanobacterial blooms and antibiotic resistance have aggravated worldwide and posed a great threat to public health in recent years. As a significant source and reservoir of water environmental resistome, cyanobacteria exhibit confusing discrepancy between their reduced susceptibility and their chronic exposure to antibiotic mixtures at sub-inhibitory concentrations. How the increasing temperature affects the adaptive evolution of cyanobacteria-associated antibiotic resistance in response to low-level antibiotic combinations under climate change remains unclear...
April 18, 2024: Water Research
#6
JOURNAL ARTICLE
Karine Lino Rodrigues, Patrícia de Oliveira da Silva Scaranni, Evelyn Nunes Goulart da Silva Pereira, Vivian Vieira Dias da Silva, Raquel Rangel Silvares, Beatriz Peres de Araujo, Cristina Castilho, Maria Inês Schmidt, Maria de Jesus Mendes da Fonseca, Rosane Harter Griep, Anissa Daliry
INTRODUCTION: Hair cortisol level has recently been identified as a promising marker for detecting long-term cortisol levels and a marker of hypothalamic-pituitary-adrenal cortex (HPA) axis activity. However, research on the association between obesity and an altered cortisol metabolism remains controversial. OBJECTIVE: This study aimed to investigate the relationship between hair cortisol levels and overweight and obesity in participants from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)...
2024: Frontiers in Endocrinology
#7
REVIEW
Krishna Priyadarshini Das, Pooja Chauhan, Ulrike Staudinger, Bhabani Kumar Satapathy
Phosphorus to an optimum extent is an essential nutrient for all living organisms and its scarcity may cause food security, and environmental preservation issues vis-à-vis agroeconomic hurdles. Undesirably excess phosphorus intensifies the eutrophication problem in non-marine water bodies and disrupts the natural nutrient balance of the ecosystem. To overcome such dichotomy, biodegradable polymer-based adsorbents have emerged as a cost-effective and implementable approach in striking a "desired optimum-undesired excess" balance pertaining to phosphate in a sustainable manner...
April 22, 2024: Environmental Science and Pollution Research International
#8
JOURNAL ARTICLE
Tamar Bakman, Bettina Susanne Hoffmann, Joana Portugal-Pereira
Diet shift is an opportunity to mitigate the impacts of food systems, which are responsible for about a third of greenhouse gas (GHG) emissions globally and exert various environmental pressures on ecosystems. This study evaluates the mitigation potential of both global and local environmental impacts through dietary changes within the Brazilian context. Furthermore, the study aims to identify the potential benefits and trade-offs that may arise from these dietary transitions, thus providing a comprehensive analysis of the overall environmental implications...
April 20, 2024: Science of the Total Environment
#9
REVIEW
Shangjun Cai, Qibin Lao, Chunqing Chen, Qingmei Zhu, Fajin Chen
Under the influence of many factors, such as climate change, anthropogenic eutrophication, and the development of aquaculture, the area and frequency of algal blooms have showed an increasing trend worldwide, which has become a challenging issue at present. However, the coupled relationship between nitrous oxide (N2 O) and algal blooms and the underlying mechanisms remain unclear. To address this issue, 15 N isotope cultures and quantitative polymerase chain reaction (qPCR) experiments were conducted in Zhanjiang Bay during algal and non-algal bloom periods...
April 21, 2024: Journal of Environmental Management
#10
JOURNAL ARTICLE
Dejene Tsegaye Bedane, Seyoum Leta Asfaw
Anaerobically treated slaughterhouse effluent is rich in nutrients, organic matter, and cause eutrophication if discharged to the environment without proper further treatment. Moreover, phosphorus and nitrogen in agro-processing industry wastewaters are mainly removed in the tertiary treatment phase. The objective of this study is to evaluate the pollutant removal efficiency of Chlorella and Scenedesmus species as well as their co-culture treating two-phase anaerobic digester effluent through microalgae biomass production...
November 15, 2023: Bioresources and Bioprocessing
#11
JOURNAL ARTICLE
Jin-Tao Xu, Yuan Yao, Wen Yang, Zhong Wang, Xin-Yang Li, Fa-Qi Tan, Wei-Wei Li, Ji-Cheng Ma, Xin Ma
To explore the causes of red tides in Qinhuangdao coastal water, we conducted surveys on both water quality and red tides during April to September of 2022 and analyzed the relationships between main environmental factors and red tide organisms through the factor analysis and canonical correspondence analysis. The results showed that there were eight red tides along the coast of Qinhuangdao in 2022, with a cumulative blooming area of 716.1 km2 . The red tides could be divided into three kinds based on the major blooming organisms and occurrence time, Noctiluca scintillans bloom, diatom-euglena ( Skeletonema costatum , Eutreptiella gymnastica , Pseudo-nitzschia spp...
March 18, 2024: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
#12
JOURNAL ARTICLE
Elisa Soana, Maria Pia Gervasio, Tommaso Granata, Daniela Colombo, Giuseppe Castaldelli
Rivers worldwide are under stress from eutrophication and nitrate pollution, but the ecological consequences overlap with climate change, and the resulting interactions may be unexpected and still unexplored. The Po River basin (northern Italy) is one of the most agriculturally productive and densely populated areas in Europe. It remains unclear whether the climate change impacts on the thermal and hydrological regimes are already affecting nutrient dynamics and transport to coastal areas. The present work addresses the long-term trends (1992-2020) of nitrogen and phosphorus export by investigating both the annual magnitude and the seasonal patterns and their relationship with water temperature and discharge trajectories...
September 2024: Journal of Environmental Sciences (China)
#13
JOURNAL ARTICLE
Thaís Muniz Montalvão-Sousa, Priscila de Ataides Ferreira, Natália Leite Colombelli, Kênia Mara Baiocchi de Carvalho, Anthony J Blazevich, Ricardo M Lima
PURPOSE: To apply the ESPEN-EASO diagnostic criteria for Sarcopenic Obesity (SO) in older women and to assess its association with the risk of falls, fear of falls (FOF), and bone mineral density (BMD). METHODS: After exclusion criteria, 232 women aged ≥60 years (68.2 ± 6.1) were enrolled in the study. Volunteers had handgrip strength (HGS; dynamometer) and body composition assessed by DXA before risk of falls was evaluated using the QuickScreen and FOF evaluated by the Falls Efficiency Scale...
April 12, 2024: Archives of Gerontology and Geriatrics
#14
JOURNAL ARTICLE
Laura Álvarez-Álvarez, María Rubín-García, Facundo Vitelli-Storelli, Silvia García, Cristina Bouzas, Miguel Ángel Martínez-González, Dolores Corella, Jordi Salas-Salvadó, Mireia Malcampo, J Alfredo Martínez, Ángel M Alonso-Gómez, Julia Wärnberg, Jesús Vioque, Dora Romaguera, José López-Miranda, Ramon Estruch, Francisco J Tinahones, José Lapetra, Lluís Serra-Majem, Aurora Bueno-Cavanillas, Camino García Fernández, Xavier Pintó, Miguel Delgado-Rodríguez, Pilar Matía-Martín, Josep Vidal, Clotilde Vázquez, Lidia Daimiel, Emilio Ros, Ana García-Arellano, María Ángeles Martínez, José V Sorlí, María Dolores Zomeño, Antonio García-Rios, Sandra González-Palacios, Margalida Monserrat-Mesquida, Itziar Abete, Antoni Colom Fernández, Rosa Casas, Naomi Cano Ibañez, Lucía Ugarriza, M Rosa Bernal-López, Maira Bes-Rastrollo, Indira Paz-Graniel, Eva M Asensio, Montse Fitó, Antonio P Arenas Larriva, Alejandro Oncina-Cánovas, Zenaida Vázquez, María Fernández de la Puente, Alejandra Pérez-Vega, Josep A Tur, Vicente Martín-Sánchez
OBJECTIVE: To estimate the environmental impact of a dietary intervention based on an energy-reduced Mediterranean diet (MedDiet) after one year of follow-up. METHODS: Baseline and 1-year follow-up data were used for 5800 participants aged 55-75 years with metabolic syndrome in the PREDIMED-Plus study. Food intake was estimated through a validated semiquantitative food consumption frequency questionnaire, and adherence to the MedDiet was estimated through the Diet Score...
April 18, 2024: Science of the Total Environment
#15
JOURNAL ARTICLE
Yuqi Huang, Yu Li, Ying Guo, Bo Yao, Shengrui Wang, Shou-Qing Ni
Lake ecological processes and nutrient patterns are increasingly affected by water level variation around the world. Still, the long-term effects of water level change on lake ecosystems and their implications for suitable lake level management have rarely been studied. Here, we studied the ecosystem dynamics of a mesotrophic lake located in the cold and arid region of northern China based on long-term paleo-diatom and fishery records. Utilizing a novel Copula-Bayesian Network model, possible hydrological-driven ecosystem evolution was discussed...
April 18, 2024: Science of the Total Environment
#16
JOURNAL ARTICLE
Ling Lin, Jiangzhiqian Xiong, Tianchen Yue, Wenfeng Xu, Lihua Liu, Feifei Wang, Shengchang Yang, Wenzhi Cao
Phosphorus (P) plays an important role in regulating primary production in estuarine environments. However, knowledge of the P-functional gene composition of microbial communities and the mechanisms of microbial adaptation to changes in available P in estuaries remain limited. This study coupling 16 s rDNA and metagenomics sequencing was conducted to reveal the relationship between P cycling functional genes, microbial interactions, and P availability in the Jiulong River Estuary. The results showed that the relative abundance of P cycling functions genes was highest in winter, and lowest in summer...
April 17, 2024: Science of the Total Environment
#17
JOURNAL ARTICLE
M P Pasquale Pérez, E Carol, L Santucci, Y L Idaszkin
Wetlands provide numerous ecosystem services to the environment, such as nutrient removal and storage. The aim of this work is to evaluate the nutrient dynamics in different sectors within wetland systems in the south of the Samborombón Bay (Argentina) based on hydrological and/or anthropogenic variations. For this purpose, the hydrological features of the wetland were defined through the analysis of satellite images, precipitation and tidal data, and field surveys. Three sectors were identified in the wetland: one with tidal influence, another which is dependent on rainfall, and another that receives inputs from rainfall and from a sewage effluent treatment plant...
April 17, 2024: Science of the Total Environment
#18
JOURNAL ARTICLE
Qi Lin, Ke Zhang, Charline Giguet-Covex, Fabien Arnaud, Suzanne McGowan, Ludovic Gielly, Eric Capo, Shixin Huang, Gentile Francesco Ficetola, Ji Shen, John A Dearing, Michael E Meadows
Understanding the transient dynamics of interlinked social-ecological systems (SES) is imperative for assessing sustainability in the Anthropocene. However, how to identify critical transitions in real-world SES remains a formidable challenge. In this study, we present an evolutionary framework to characterize these dynamics over an extended historical timeline. Our approach leverages multidecadal rates of change in socioeconomic data, paleoenvironmental, and cutting-edge sedimentary ancient DNA records from China's Yangtze River Delta, one of the most densely populated and intensively modified landscapes on Earth...
April 23, 2024: Proceedings of the National Academy of Sciences of the United States of America
#19
JOURNAL ARTICLE
Madeleine Moyle, John Boyle, Helen Bennion, Richard Chiverrell
Validating paleo total phosphorus (TP) inference methods over long time scales is essential for understanding historic changes in lake P supply and the processes leading up to the present-day global lake eutrophication crisis. Monitored lake water TP time series have enabled us to identify the drivers of eutrophication over recent decades. However, over longer time scales, the lack of reliable TP inference means our understanding of drivers is speculative. Validation of lake water TP reconstruction, therefore, remains the "ultimate aim" of eutrophication studies...
April 19, 2024: Environmental Science & Technology
#20
JOURNAL ARTICLE
Kerstin Bouma, Elisabeth S Bakker, Marleen Wilborts, Bjorn J M Robroek, Leon L Lamers, Perry Cornelissen, Mennobart R van Eerden, Ralph J M Temmink
The lack of extreme water level fluctuations in managed, non-peat forming wetland ecosystems can result in decreased productivity through the loss of heterogeneity of these ecosystems. Stochastic disruption, such as a water level drawdown, can effectively reverse this effect and return the wetland to a more productive state, associated with higher biodiversity through new vegetation development. Yet, aside from the effect on vegetation dynamics, little is known about longer-term effects (30 years) of a water level drawdown, hereafter referred to as legacy effects, and how this may impact future water level drawdowns...
April 16, 2024: Science of the Total Environment
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