Characterisation of Benthic Macroinvertebrate Communities in Small Watercourses of the European Central Plains Ecoregion and the Effect of Different Environmental Factors

Animals, Journal Year: 2022, Volume and Issue: 12(5), P. 606 - 606

Published: Feb. 28, 2022

Most publications on the influence of environmental factors macroinvertebrate communities focus large rivers, whereas relatively few examine small watercourses in agricultural areas, which, due to their size and pressure from intensive production, are much more susceptible effects unfavourable conditions or anthropopressure. The aim our study was compare biodiversity macrozoobenthos assemblages determine physicochemical hydrological abundance density 10 rivers areas located northwest (53°23' N 15°14' E) central (52°11' 20°48' Poland. In total, 105 taxa were recorded, with majority being euryoecious. Among assessed parameters, oxygenation found affect number taxa; another important factor content nitrate nitrogen. Sensitivity changes water temperature observed some (especially Decapoda). Of examined greatest exerted by speed, flow, depth.

Language: Английский

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Macroinvertebrate conservation in river ecosystems: Challenges, restoration strategies, and integrated management approaches

Entomological Research, Journal Year: 2023, Volume and Issue: 53(8), P. 271 - 290

Published: Aug. 1, 2023

Abstract River ecosystems face growing threats from human‐induced stressors, resulting in habitat degradation and biodiversity loss. Crucial to these ecosystems, macroinvertebrates maintain river health functioning. In this review, we examine the challenges confronting macroinvertebrates, explore restoration strategies management approaches, shed light on knowledge gaps future research directions. Habitat degradation, water pollution, climate change, invasive species are discussed as key challenges. Various strategies, such in‐stream restoration, flow regime riparian zone connectivity evaluated for macroinvertebrate conservation. Integrated catchment management, adaptive community‐based monitoring, policy integration highlighted essential long‐term innovative techniques, change resilience, incorporation identified areas calling further research. Ultimately, a proactive, adaptable, cooperative approach will ensure conservation sustainable ecosystems.

Language: Английский

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Effect of land use type on macrobenthos assemblages, distribution, and functional guild in Upstream Citarum River

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111849 - 111849

Published: March 1, 2024

Aquatic community biodiversity is gradually impacted by the expansion and intensification of agricultural urbanization land use. However, data on macrobenthos responses to use in tropical streams are relatively limited. This study aims investigate diversity, functional guild, physicochemical parameters Upstream Citarum River type, area. A total 317 species from 21 families, 11 orders three phyla were identified, with having highest abundance macroinvertebrates (222 individuals), followed (95 individuals). Ecological indices, including evenness, dominance, margalef displayed similar patterns across different types. Contribution upstream based Similarity Percentage (SIMPER) analysis Hydropychidae Palaemonidae. Filter collectors (FC) had density (78.829%) use, while scrapers (SC) (87.37%) Nepidae Palaemonidae showed positive correlations temperature, organic carbon (TOC) matter (TOM). The concludes that river communities guilds influenced type water quality. effect will provide management for further help sustainability stream implication policy future studies.

Language: Английский

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Water Quality Management in a Tropical Karstic System Influenced by Land Use in Chiapas, Mexico

Published: Jan. 1, 2024

Language: Английский

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Immediate Effect of Floating Solar Energy Deployment on Greenhouse Gas Dynamics in Ponds

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

Floating photovoltaic (FPV) solar energy offers promise for renewable electricity production that spares land other societal benefits. FPV deployment may alter greenhouse gas (GHG) and emissions from waterbodies by changing physical, chemical, biological processes, which can have implications the carbon cost of with FPV. Here, we use an ecosystem-scale experiment to assess how GHG dynamics in ponds respond installation operationally representative Following deployments 70% array coverage, daily whole-pond increased 26.8% on a dioxide-equivalent (CO2-eq) basis, dissolved oxygen availability rapidly decreased. Despite following deployment, FPV-derived are likely lower than landscape associated terrestrial hydropower CO2-eq kWh–1 basis. Adaptive management strategies like bubbler reduce magnitude impacts dynamics.

Language: Английский

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Engineering demonstration of the remediation of urban water using a novel MES enhanced ecological floating bed: From construction to long-term performance

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 454, P. 140024 - 140024

Published: Oct. 28, 2022

Language: Английский

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Diatom and Macroinvertebrate assemblages to inform management of Brazilian savanna’s watersheds

Ecological Indicators, Journal Year: 2021, Volume and Issue: 128, P. 107834 - 107834

Published: June 4, 2021

Human activities are increasingly affecting freshwater ecosystems and biodiversity, especially in neotropical regions like the Brazilian savanna. Limited research data availability have inhibited development implementation of systematic bioassessment programs management guidelines. Identifying drivers biological assemblages' composition ecological thresholds along human disturbance gradients is an important step to protect recover while avoiding threats goods services value humans. The objectives this study were to: 1) assess changes density periphytic diatom macroinvertebrate assemblages relative natural savanna's streams, 2) identify for direct indirect disturbances potential indicator taxa that could inform biomonitoring Brazil other countries. Samplings carried out 52 stretches streams located central during two campaigns throughout 2018. Ordination analyses (NMDS) applied main distribution (TITAN) detect possible bioindicator taxa. Our results pointed scale land use catchment, treated sewage input, water quality variables (nitrate, phosphate, conductivity) assemblages. Taxa such as Eunotia (diatoms) some families orders Ephemeroptera, Plecoptera, Trichoptera (EPT, macroinvertebrates) associated with conditions, Nitzschia palea Gomphonema Oligochaeta Hirudinea (macroinvertebrates) related environments a higher degree disturbance. Although varied among biotic groups, our revealed relatively minor increases riparian zone (>0%) upstream catchment (0–33%) sufficient trigger significant limits tolerance conductivity, nitrate phosphate also low, varying between 7-163 µS.cm−1, 0.3–1.0 mg.L−1 0.03–1.5 mg.L−1, respectively. In general, values we found more restrictive than those provided by government guidelines, suggesting latter would be insufficient maintain integrity watersheds. We valuable knowledge about sensitivities tolerances macroinvertebrate's taxa/assemblages can useful proper watersheds management.

Language: Английский

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Hidden seafloor hypoxia in coastal waters

Limnology and Oceanography, Journal Year: 2024, Volume and Issue: 69(11), P. 2489 - 2502

Published: July 22, 2024

Abstract The expansion of transient and permanent coastal benthic anoxia is one the most severe problems for ocean globally. We report frequent, hidden hypoxia in bottom 5 cm water column a site central Baltic Sea by continuous high‐resolution profiling oxygen (O 2 ) directly above sediment surface. This stood stark contrast to 30‐yr O monitoring records at this that suggest apparent well‐oxygenated conditions. In situ measurements showed highly dynamic conditions 30 recording frequent gradual abrupt changes between normoxic (> 63 μ mol L −1 hypoxic (< would remain undetectable conventional monitoring. temporal variability these “hidden” tied current field consumption following resuspension events. Our observations much more common than routine data indicate.

Language: Английский

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Evaluating a process‐guided deep learning approach for predicting dissolved oxygen in streams

Hydrological Processes, Journal Year: 2024, Volume and Issue: 38(9)

Published: Sept. 1, 2024

Abstract Dissolved oxygen (DO) is a critical water quality constituent that governs habitat suitability for aquatic biota, biogeochemical reactions and solubility of metals in streams. Recently introduced high‐frequency sensors have increased our ability to measure DO, but we still lack the capacity understand predict DO concentrations at high spatial resolutions or unmonitored locations. Machine learning (ML) has been commonly used approach modelling however, conventional ML models no representation limnological processes governing dynamics. Here implement evaluate two process‐guided deep (PGDL) approaches predicting daily minimum, mean maximum rivers from Delaware River Basin, USA. In both cases, multi‐task was taken which PGDL predicted stream metabolism gas exchange rates addition themselves. Our results showed these sites, did not improve upon baseline predictions temporal spatially similar holdout experiments. One did, when applied dissimilar sites. Although this particular predictive accuracy most suggest process guidance, perhaps more constrained approach, could benefit data‐driven model.

Language: Английский

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Indicator species reveal the physical and biological singularity of esker ecosystems

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110612 - 110612

Published: July 21, 2023

Eskers are complex geological formations shaped with a linear accumulation of sand and gravel under the glaciers during last ice age that provide crucial resources such as drinking water, sand/gravel, outdoor recreational sites, productive forests. Surrounding connection groundwater influences physicochemical properties lakes on esker which can benefit different biotic communities in food web. The sustainable management provided by eskers requires baseline ecological knowledge these ecosystems. However, very little information exists about ecology freshwater ecosystems eskers. This study uses web approach to identify environmental variables, biological diversity, indicator species associated better understand their functioning biodiversity patterns conservation. Fifty were sampled Abitibi-Témiscamingue region (Canada), half surrounding boreal clay belt include most abundant lake region. Physicochemical, environmental, anthropogenic variables measured two types showed differed markedly from lakes. Nutrient concentrations, conductivity, macrophyte cover significantly lower than lakes, whereas dissolved oxygen saturation concentration opposite trend. Three interconnected trophic levels webs—waterbird, fish, macroinvertebrate communities—were characterized for diversity species. We found Shannon index waterbirds (mean ± standard deviation; 0.7 0.2), fish (0.4 0.3), tendency value macroinvertebrates (0.9 0.3) (1.1 0.4, 0.9 0.3, 1.3 0.5, respectively). Common goldeneye (Bucephala clangula) Canada goose identified In contrast, ring-necked duck (Aythya collaris) hooded merganser (Lophodytes cucullatus) Perlidae was similarly an macroinvertebrates. Anthropogenic activities forest harvesting have altered waterbird community, around modified communities. conclude differ other regional specific is all studied web, but waterbodies preferential habitats some research provides first necessary establish conservation strategies this vulnerable ecosystem.

Language: Английский

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