26 documents found, page 1 of 3
Do Freshwater and Marine Bivalves Differ in Their Response to Wildfire Ash? Eff...
Jesus, Fátima; Mesquita, Filipa; Virumbrales Aldama, Elisa; Marques, Ana; Gonçalves, Ana M. M.; Magalhães, Luísa; Nogueira, António J. A.; Ré, AnaWildfires constitute a source of contamination to both freshwater and marine ecosystems. This study aimed to compare the antioxidant defense response of the freshwater clam Corbicula fluminea and the marine cockle (Cerastoderma edule) to wildfire ash exposure and the concomitant metal body burden. Organisms were exposed to different concentrations (0%, 12.5%, 25%, 50%, and 100%) of aqueous extracts of Eucalypt ...
Do Freshwater and Marine Bivalves Differ in Their Response to Wildfire Ash? Eff...
Jesus, Fátima; Mesquita, Filipa; Virumbrales Aldama, Elisa; Marques, Ana Margarida; Gonçalves, Ana M M; Magalhães, Luísa; Nogueira, António J A; Ré, AnaWildfires constitute a source of contamination to both freshwater and marine ecosystems. This study aimed to compare the antioxidant defense response of the freshwater clam Corbicula fluminea and the marine cockle (Cerastoderma edule) to wildfire ash exposure and the concomitant metal body burden. Organisms were exposed to different concentrations (0%, 12.5%, 25%, 50%, and 100%) of aqueous extracts of Eucalypt ...
Effects of wildfire ashes on aquatic invertebrates: First molecular approach on...
Muñiz González, Ana-Belén; Campos, Isabel; Ré, Ana; Martínez-Guitarte, José-Luis; Abrantes, NelsonThe wildfire magnification in recent years has raised increasing concern about their adverse impacts on the environment. Wildfires are recognized as an important source of diffuse pollution for the nearby aquatic systems being potentially toxic to aquatic life. Albeit previous studies with wildfire runoff/ashes observed effects in aquatic organisms, to date, different severity origins of ashes and their impact ...
A review on polycyclic aromatic hydrocarbons distribution in freshwater ecosyst...
Jesus, Fátima; Pereira, Joana L.; Campos, Isabel; Santos, Martha; Ré, Ana; Keizer, Jacob; Nogueira, António; Gonçalves, Fernando J. M.; Abrantes, NelsonPolycyclic aromatic hydrocarbons (PAHs) are a group of organic compounds, found ubiquitously in all environmental compartments. PAHs are considered hazardous pollutants, being of concern to both the environmental and human health. In the aquatic environment, PAHs tend to accumulate in the sediment due to their high hydrophobicity, and thus sediments can be considered their ultimate sink. Concurrently, sediments...
Avaliação dos efeitos dos incêndios florestais na espécie bentónica Chironomus ...
Jesus, Fátima; Santos, Martha; Ré, Ana; Campos, Isabel; Pereira, Joana L.; Gonçalves, Fernando J.M.; Abrantes, Nelson; Serpa, DalilaOs incêndios florestais constituem uma fonte de contaminação difusa, sendo reconhecidos como uma ameaça à biodiversidade dos ecossistemas aquáticos. No entanto, os seus efeitos nos organismos aquáticos permanecem pouco estudados. Neste trabalho avaliou-se o efeito dos contaminantes associados aos incêndios florestais em organismos bentónicos da espécie Chironomus riparius. Para tal, foram recolhidos sedimentos ...
Forest fires as drivers of contamination of polycyclic aromatic hydrocarbons to...
Campos, Isabel; Abrantes, NelsonForest fires are a well-known source of polycyclic aromatic hydrocarbons (PAHs), playing an important role on their formation and redistribution across the terrestrial and aquatic compartments. Fire-induced inputs of PAHs to the environment are of major concern due to their toxicity, high persistence, and tendency to bioaccumulate. This article presents a synthesis of the most important work on the role of wild...
Avaliação dos efeitos dos incêndios florestais na espécie bentónica Chironomus ...
Jesus, Fátima; Santos, Martha; Ré, Ana; Campos, Isabel; Pereira, Joana L.; Gonçalves, Fernando J. M.; Abrantes, Nelson; Serpa, DalilaOs incêndios florestais constituem uma fonte de contaminação difusa, sendo reconhecidos como uma ameaça à biodiversidade dos ecossistemas aquáticos. No entanto, os seus efeitos nos organismos aquáticos permanecem pouco estudados. Neste trabalho avaliou-se o efeito dos contaminantes associados aos incêndios florestais em organismos bentónicos da espécie Chironomus riparius. Para tal, foram recolhidos sedimentos ...
Drp1-mediated mitochondrial fission regulates calcium and F-actin dynamics duri...
Ponte, Susana; Carvalho, Lara; Gagliardi, Maria; Campos, Isabel; Oliveira, Paulo J.; Jacinto, AntónioMitochondria adapt to cellular needs by changes in morphology through fusion and fission events, referred to as mitochondrial dynamics. Mitochondrial function and morphology are intimately connected and the dysregulation of mitochondrial dynamics is linked to several human diseases. In this work, we investigated the role of mitochondrial dynamics in wound healing in the Drosophila embryonic epidermis. Mutants f...
Biochemical and functional responses of stream invertebrate shredders to postwi...
Pradhan, Arunava; Carvalho, Francisco; Abrantes, Nélson; Campos, Isabel; Keizer, Jan Jacob; Cássio, Fernanda; Pascoal, CláudiaForests in Mediterranean Europe including Portugal are highly susceptible to wildfires. Freshwaters are often exposed to post-wildfire contamination that contains several toxic substances, which may impose risk to freshwater organisms and ecosystem functions. However, knowledge on the impacts of post-wildfire runoffs from different origins on freshwater biota is scarce. In forest streams, invertebrate shredders...
Utilização do gastrópode aquático Physa acuta em ensaios in situ
J. Saraiva, Maria; R. Puga, João; Ré, Ana; Campos, Isabel; Gonçalves, Fernando; Jacob Keizer, Jan; Abrantes, NelsonOs ensaios in situ constituem uma ferramenta efetiva e ambientalmente relevante de avaliação de efeitos ecotoxicológicos, permitindo estabelecer relações causa-efeito em ambientes aquáticos sujeitos a vários agentes de stress. Entre as várias espécies aquáticas utilizadas neste tipo de testes, o gastrópode Physa acuta assume-se como um potencial organismo teste, permitindo, para além da avaliação de efeitos let...