Limnological Review

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📃Manuscript Title: "Water Monitoring Practices 2.0—Water Fleas as Key Species in Ecotoxicology and Risk Assessment".

💧 Conventional approaches for water pollution rely on the detection of chemicals in the environment. However, these descriptive observations when compared against water quality standards used as metrics for pollution are unable to predict pollution early or capture the extent of its impact. Focusing on the freshwater ecosystem, daphnids are key species employed in risk assessment which are characterised as highly responsive to pollutants and physical stressors. The translation of molecular information describing the physiology of these organisms provides novel and sensitive metrics for pollution assessment.

🎓Authors: Anne Leung, Emma Rowan, Flavia Melati Chiappara and Konstantinos Grintzalis.

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Water Monitoring Practices 2.0—Water Fleas as Key Species in Ecotoxicology and Risk Assessment Humanity faces the great challenges arising from pollution and climate change which evidently lead to the irreversible effects observed on the planet. It is now more important than ever to monitor and safeguard the ecosystem as it has been highlighted by governments and scientists. Conventional appr...

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📃Manuscript Title: "Generation of Nitrous Oxide by Aerobic Denitrifiers Isolated from an Urban Wetland in Bogotá, Colombia".

🏞️In this study, we evaluated the nitrous oxide production potential of denitrifying bacterial strains isolated from sediments of the urban wetland Santa María del Lago under anaerobic and aerobic conditions to determine their potential role in mitigating anthropogenic N2O emissions, which have increased by approximately 40% since 1980, and if these emissions could be related to the absence of the nitrous oxide reductase gene (nosZ). The results demonstrated that denitrifying bacteria belonging to the genus Bacillus were able to generate nitrous oxide in high concentrations under both aerobic (up to 83 nM/h) and anaerobic (up to 3865.5 nM/h) conditions in cultures with optimal concentrations of nitrate and carbon.

🎓Authors: Maribeb Castro-González and Verónica Molina.

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Generation of Nitrous Oxide by Aerobic Denitrifiers Isolated from an Urban Wetland in Bogotá, Colombia In this study, we evaluated the nitrous oxide production potential of denitrifying bacterial strains isolated from sediments of the urban wetland Santa María del Lago under anaerobic and aerobic conditions to determine their potential role in mitigating anthropogenic N2O emissions, which have incre...

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📃Manuscript Title: "Paleolimnological Approaches to Track Anthropogenic Eutrophication in Lacustrine Systems Across the American Continent: A Review".

🏞️This review synthesizes the main methodologies used in paleolimnological research focused on trophic state reconstruction with particular attention to the utility of proxies such as fossil pigments, diatoms, chironomids, and elemental geochemistry. It further underscores the need to broaden spatial research coverage, fostering interdisciplinary integration and the use of emerging tools such as sedimentary DNA among others..

🎓Authors: Cinthya Soledad Manjarrez-Rangel, Silvana Raquel Halac, Luciana Del Valle Mengo, Eduardo Luis Piovano and Gabriela Ana Zanor.

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Paleolimnological Approaches to Track Anthropogenic Eutrophication in Lacustrine Systems Across the American Continent: A Review Eutrophication has intensified in lacustrine systems across the American continent, which has been primarily driven by human activities such as intensive agriculture, wastewater discharge, and land-use change. This phenomenon adversely affects water quality, biodiversity, and ecosystem functioning.....

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🏞️In this study, we investigated how varying quantities of surrounding detritus impact leaf litter decay rates. The findings indicate that the amount of surrounding detritus modulates leaf litter decomposition independently of invertebrate density, by influencing oxygen dynamics and, consequently, the activity of biological decomposers.

🎓Authors: Franca Sangiorgio, Daniela Santagata, Fabio Vignes, Maurizio Pinna and Alberto Basset.

👉Read the full article: https://brnw.ch/21x2PvA

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Effect of Surrounding Detritus on Phragmites australis Litter Decomposition: Evidence from Laboratory Aquatic Microcosms The availability of detritus is a key factor influencing aquatic biota and can significantly affect decomposition processes. In this study, we investigated how varying quantities of surrounding detritus impact leaf litter decay rates. It was tested in flowing and still-water microcosms to highlight....

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💧This study aims to monitor and analyze the dynamics of aquatic vegetation in Chimaditida Shallow Lake, Greece, using Sentinel-2 satellite imagery, with validation from field measurements. Data processing was performed using Google Earth Engine and QGIS. The study focuses on discriminating and mapping two classes of aquatic surface conditions: areas covered with Floating and Emergent Aquatic Vegetation and open water, covering all seasons from 1 March 2024, to 28 February 2025.

🔎Read the full article: https://brnw.ch/21x2Np6

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Monitoring and Analyzing Aquatic Vegetation Using Sentinel-2 Imagery Time Series: A Case Study in Chimaditida Shallow Lake in Greece Aquatic vegetation plays a crucial role in freshwater ecosystems by providing habitats, regulating water quality, and supporting biodiversity. This study aims to monitor and analyze the dynamics of aquatic vegetation in Chimaditida Shallow Lake, Greece, using Sentinel-2 satellite imagery, with valid...

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🏞️During the period from 2020 to 2024, 900 springs were mapped on the southern slopes of Medvednica Mountain Nature Park. Physicochemical parameters (temperature, pH, and electrical conductivity) were measured at 701 of these springs using a portable multimeter. This research provides the first results of this kind in this study area, aiming to expand the knowledge on local springs and to support the future protection and management of spring ecosystems.

👉Read the full article: https://brnw.ch/21x2JsN

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Natural and Anthropogenic Influence on the Physicochemical Characteristics of Spring Water: The Case Study of Medvednica Mountain (Central Croatia) During the period from 2020 to 2024, 900 springs were mapped on the southern slopes of Medvednica Mountain Nature Park. Physicochemical parameters (temperature, pH, and electrical conductivity) were measured at 701 of these springs using a portable multimeter, and results were analyzed in relation t...

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This study presents a methodological framework for prioritizing areas for forest restoration with the primary objective of enhancing water provision. A multi-scale approach was employed, starting with macro-scale criteria at the river basin level, followed by more localized landscape and hydro-ecological assessments. The project’s primary goal is to improve water security by restoring native vegetation across 100 springs and 100 hectares of riparian zones, which are critical to the water supply system for the Salvador Metropolitan Region.

Read the full article: https://brnw.ch/21x2IxK

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Methodologies and Criteria for Defining Areas for Forest Restoration Aiming at Water Production and Security This study presents a methodological framework for prioritizing areas for forest restoration with the primary objective of enhancing water provision. A multi-scale approach was employed, starting with macro-scale criteria at the river basin level, followed by more localized landscape and hydro-ecolo...

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Alpine streams are particularly vulnerable to climate change and in many parts of the world are poorly studied, which is true of western North America. The authors sampled the invertebrate communities and measured the physico-chemical parameters of nine small streams in a single alpine meadow. The results suggest strong environmental filters on communities in these alpine stream systems and the potential for high regional biodiversity far beyond what individual streams support.

Read the full article: https://brnw.ch/21x2H3D

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📃Manuscript Title: "Evaluating an Ensemble-Based Machine Learning Approach for Groundwater Dynamics by Downscaling GRACE Data".

💧This study addresses these limitations by leveraging downscaled Gravity Recovery and Climate Experiment (GRACE) data to estimate groundwater levels using random forest modeling (RFM). By integrating satellite data with machine learning, this research provides a framework for addressing regional water management challenges and advancing sustainable practices in water-stressed agricultural regions.

🎓Authors: Zahra Ghaffari, Abdel Rahman Awawdeh, Greg Easson, Lance D. Yarbrough and Lucas James Heintzman.

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Evaluating an Ensemble-Based Machine Learning Approach for Groundwater Dynamics by Downscaling GRACE Data Groundwater depletion poses a critical challenge to global water security, threatening ecosystems, agriculture, and sustainable development. The Mississippi Delta, a region heavily reliant on groundwater for agriculture, has experienced significant groundwater level declines due to intensive irrigat...

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📃Manuscript Title: "Status and Trends of Saline Lake Research in British Columbia, Canada".

💧Saline lakes are distinct, understudied aquatic ecosystems, particularly those that are hydrologically isolated from marine environments. In British Columbia (BC), Canada, the scope and trajectory of scientific research on these systems remain largely undocumented. To address this gap, a meta-analysis was conducted of peer-reviewed scholarly articles focusing on both coastal and inland saline lakes to identify the primary research themes and assess temporal trends in scientific inquiry.

🎓Author: Markus Heinrichs

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Status and Trends of Saline Lake Research in British Columbia, Canada Saline lakes are distinct, understudied aquatic ecosystems, particularly those that are hydrologically isolated from marine environments. In British Columbia (BC), Canada, the scope and trajectory of scientific research on these systems remain largely undocumented. To address this gap, a meta-analys...