Results 61 to 70 of about 21,498 (271)

Assessing the Health Impacts of Contaminants on Green Turtles (Chelonia mydas) Along the Southern Coast of Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Chemical pollutants pose a significant threat to marine ecosystems. Among these contaminants are trace elements and polycyclic aromatic hydrocarbons (PAH). Green turtles can be employed to evaluate the oceans' health due to their coastal habitats and exposure to multiple threats.
Camila Roberta da Silva Ribeiro   +6 more
wiley   +1 more source

Oxidative Stress Biomarkers in the Shrimp Macrobrachium amazonicum (Heller, 1862): Assessment in an Environmental Preservation Area in the Brazilian Amazon

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Anthropogenic activities generate a significant amount of pollutants that are released into the environment, causing physiological and ecological disturbances. Among the xenobiotics present in aquatic ecosystems, numerous chemical and organic compounds have oxidative potential or are metabolized through oxidative processes, which may amplify ...
Natália Eduarda da Silva   +6 more
wiley   +1 more source

Detection of Sulfur from Industrial Emissions Across a Complex Mountainous Landscape: An Isotope Approach Using Plant-Based Biomonitors in Winter

open access: yesAtmosphere
Tree rings, tree needles, and moss can be used as biomonitors to evaluate atmospheric pollutant concentrations and deposition patterns spanning different timescales.
Ann-Lise Norman   +5 more
doaj   +1 more source

Environmental Contaminant Accumulation in Freshwater Turtles Inhabiting Three Rivers of the Permian Basin, New Mexico, USA

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp   +4 more
wiley   +1 more source

Freshwater nematodes as bioindicators in field studies - the NemaSPEAR[%]-index

open access: yes, 2021
Höss S, Traunspurger W. Freshwater nematodes as bioindicators in field studies - the NemaSPEAR[%]-index. In: Traunspurger W, ed. Ecology of freshwater nematodes.
Höss, Sebastian, Traunspurger, Walter
core   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves   +8 more
wiley   +1 more source

Dominant Meristic Traits of Fish and Their Association with Habitat Water Quality Parameters: A Case Study

open access: yesFishes
Fish morphological traits are increasingly recognized as sensitive bioindicators of aquatic ecosystem quality. This study investigated the associations between dominant meristic traits, which are a subset of morphological features of six common ...
Olha Biedunkova   +7 more
doaj   +1 more source

Soil macrofauna in a Cerrado/Caatinga ecotone under different crops in Southwestern Piauí State, Brazil

open access: yesCiência Rural, 2017
: The aim of this study was to characterize the soil macrofauna under different crop systems and compare them to the macrofauna under the native vegetation of a Cerrado/Caatinga ecotone in southwestern Piauí State, Brazil.
Djavan Pinheiro Santos   +4 more
doaj   +1 more source

Insects as bioindicators

open access: yes, 2023
Industrial revolution, intensive agriculture and growing human population are causing extensive exploitation of natural ecosystem which leads to advanced destruction process of land ecosystem. As ecosystem more complex and their biological communities, it is not easy to directly assess the health of natural environments.
openaire   +2 more sources

Cytogenotoxic Effects of Fluopyram in Allium cepa Root Cells Involving Microtubule Disruption

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Fluopyram is a next‐generation fungicide widely used in agriculture; however, its persistence in soils and mobility toward aquatic systems have raised concerns regarding potential ecotoxicological risks. This study evaluated the cytogenotoxic effects of a commercial fluopyram‐based pesticide formulation on Allium cepa root meristem cells ...
Carlos Filipe Camilo‐Cotrim   +10 more
wiley   +1 more source

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