Cyto-genotoxic effects predict ecotoxicity in plant bioassays and the aquatic organism Artemia salina L.: a case study from a sewage treatment plant

Journal of Environmental Science and Health Part A, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 17

Published: March 2, 2025

This study evaluated the toxicological and mutagenic potential of water samples from a Wastewater Treatment Plant (WWTP) in Lavras, Minas Gerais, Brazil. Samples were taken four sites: upstream stream (P1), downstream (P2), at entrance treatment station (P3), exit (P4). We conducted physicochemical analyses water, phytotoxicity tests on plants (Triticum aestivum, Pennisetum glaucum, Lactuca sativa, Raphanus sativus), cytogenotoxicity using onion roots (Allium cepa), Artemia salina immobilization tests. Elevated Biochemical Oxygen Demand (BOD), Chemical (COD), anionic surfactants, ammoniacal nitrogen found P3 P4. While germination rates generally unaffected, P4 inhibited speed R. sativus. The growth L. sativa increased P4, sativus P2, due to more phosphorus. T. aestivum P. however, had their surfactant toxicity. Cytogenotoxicity revealed highest frequencies micronuclei nuclear buds cells exposed Additionally, caused 87.5% A. salina. These findings suggest that WWTP is not fully efficient, its effluent discharge may contribute eutrophication genetic mutations organisms.

Language: Английский

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Linking freshwater ecotoxicity to damage on ecosystem services in life cycle assessment

Environment International, Journal Year: 2022, Volume and Issue: 171, P. 107705 - 107705

Published: Dec. 19, 2022

Freshwater ecosystems provide major benefits to human wellbeing-so-called ecosystem services (ES)-but are currently threatened among others by ecotoxicological pressure from chemicals reaching the environment. There is an increased motivation incorporate ES in quantification tools that support decision-making, such as life cycle assessment (LCA). However, mechanistic models and frameworks can systematically translate ecotoxicity effect data chemical tests into eventual damage on species diversity, functional field still missing. While current approaches focus translating predicted impacts terms of loss, no available LCA other comparative for linking functioning or ES. To overcome this challenge, we propose a way forward based evaluating characterize pollution freshwater We first outline overall framework effects related compliance with boundary conditions quantitative, assessments. Second, within proposed framework, present possible stepwise diversity Finally, discuss strengths, limitations, availability each step. Although most directly deriving either loss have not been operationalized, there some promising ways forward. The Threshold Indicator Taxa ANalysis (TITAN) seems suitable metric quantitative diversity. A Trait Probability Density Framework (TPD) approach incorporates various components groups could be adapted link loss. An Ecological Production Function (EPF) further flows wellbeing. order integrate entire pathway frameworks, adopted step need harmonized assumptions, consistent interfaces other.

Language: Английский

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Zooplankton taxonomic and functional structure is determined by macrophytes and fish predation in a Neotropical river

Hydrobiologia, Journal Year: 2021, Volume and Issue: 848(7), P. 1475 - 1490

Published: March 1, 2021

Language: Английский

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Functional responses of zooplankton communities to depth, trophic status, and ion content in mine pit lakes

Hydrobiologia, Journal Year: 2021, Volume and Issue: 848(11), P. 2699 - 2719

Published: April 27, 2021

Abstract Functional traits can be used to identify various ecosystem processes that are influenced by natural and anthropogenic factors. We tested the hypothesis species composition functional feeding of zooplankton environmental gradients, such as depth, trophic status, ion content. This was in three lignite strip mine lakes Central Poland. Two shallow, polymictic were reclaimed (1994 2008), third deep, stratified lake has been during flooding process, since 2011. Samples collected monthly 2016 2017. The responses communities variables through redundancy analyses. Both eutrophy oligotrophy contributed taxonomic heterogeneity homogeneity zooplankton. In eutrophic condition small microphagous rotifers small-sized crustaceans dominated, while high concentrations favored dominance large stationary/suspended feeders. turn, depth gradient a newly emerging, resulted Our results complement existing knowledge about post-industrial areas, also provide new information on mechanisms formation functioning pit ecosystems.

Language: Английский

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Zooplankton network conditioned by turbidity gradient in small anthropogenic reservoirs

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: March 10, 2022

Abstract Water turbidity can significantly influence interspecific interactions in aquatic ecosystems. We tested the hypothesis that gradient differentiates dynamics, significance and type of relationships structure zooplankton communities colonizing mine pit reservoirs. The between species were evaluated by network graph analysis for three water classes: high (HT), moderate (MT) low (LT). HT was most cohesive, it controlled taxa grazing on various food sources within one ecological niche ( Polyarthra longiremis , Brachionus angularis Cyclops vicinus Codonella cratera ) positive negative them balanced. MT biocenotic composed sub-networks connected nodes with communication attributes vulgaris Bosmina longirostris C. ), antagonistic (predation competition) less important. LT heterogeneous, Daphnia cuculllata exerted strongest network’s forming numerous (coexistence predators) (interference competition microphagous rotifers) relationships. study provides new information about ecology ecosystems, are disturbed changes turbidity.

Language: Английский

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Changing taxonomic and functional β-diversity of cladoceran communities in Northeastern and South Brazil

Hydrobiologia, Journal Year: 2020, Volume and Issue: 847(18), P. 3845 - 3856

Published: April 2, 2020

Language: Английский

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Effect of eutrophication on the functional diversity of zooplankton in shallow ponds in Northeast Brazil

Journal of Plankton Research, Journal Year: 2021, Volume and Issue: 43(6), P. 894 - 907

Published: Sept. 8, 2021

Abstract Eutrophication is a process characterized by the enrichment of given aquatic environment with nutrients, triggering serious and growing ecological problem in continental ecosystems, including effects on biodiversity ecosystem functioning. For this, we predicted that eutrophication decreases zooplankton functional richness, evenness, divergence dispersion, changes composition zooplankton. Zooplankton water features were sampled sixteen shallow ponds northeastern Brazil. Functional diversity aspects calculated for each assembly (rotifers, cladocerans, copepods) using multidimensional indexes groups. Principal component analysis, multiple linear regression, hierarchical cluster analysis distance-based redundancy performed to characterize environmental variation, identify associations diversity. We observed turbidity increased nutrients influenced indices due pollution. Eutrophic environments favored more specialized species, greater selectivity food capture ability escape predators. suggest eutrophic conditions lead assemblies decreasing differentiation variability traits. Such loss processes make these ecosystems vulnerable.

Language: Английский

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Features that matter: studying how phytoplankton drives zooplankton community functional traits

Hydrobiologia, Journal Year: 2022, Volume and Issue: 849(12), P. 2647 - 2662

Published: May 20, 2022

Language: Английский

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Deciphering the Patterns and Correlates of Zooplankton Functional Diversity in Mountain and Lowland Ponds

Freshwater Biology, Journal Year: 2025, Volume and Issue: 70(1)

Published: Jan. 1, 2025

ABSTRACT Biodiversity studies have usually been conducted considering only the taxonomic dimension of ecological communities. However, diversity measurements taking into account functional traits species may be more sensitive in capturing aspects community functioning that are not apparent with traditional approach. Functional (either based on alpha or beta levels) is, therefore, a facet provides link between ecosystem and structure an important metric for assessing impact global change context applied conservation schemes. Zooplankton is key element lentic ecosystems due to its linkage primary producers secondary consumers. Here, we tried disentangle spatial patterns correlates zooplankton along relatively wide altitudinal gradient (700–2100 m a.s.l.) across central northwestern Spain. We also identified environmental controls extensive set lowland (48) mountain (28) ponds sampled 2004–2005 2007–2008, respectively. assessed whether replacement richness differences drove overall evaluated relative contributions geographical distances variation diversity. Our findings highlighted importance filtering increasing elevation, leading potentially concomitant decrease values. was related changes patterns, which were mostly result pure loss gain both ponds. suggest eutrophication associated agricultural development main factor underlying homogenisation communities Local strongly dominant trait difference component than distances. This study supports prediction elevation fosters different functions. results local conditions determining architecture communities, physiologically extreme environments (mountains) areas suffering from pressures processes. fraction characterising relationships generally low. suggests prevalence idiosyncratic responses random stochastic events structuring composition freshwater

Language: Английский

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Biodiversity

Published: March 21, 2025

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