A5040250483- Environmental Toxicology and Ecotoxicology
- Pesticide Exposure and Toxicity
- Water Quality and Pollution Assessment
- Aquatic Ecosystems and Phytoplankton Dynamics
- Pesticide and Herbicide Environmental Studies
- Marine Toxins and Detection Methods
- Agricultural and Food Sciences
- Fish biology, ecology, and behavior
- Microplastics and Plastic Pollution
- Geography and Environmental Studies
- Chemistry and Chemical Engineering
- Aquaculture Nutrition and Growth
- Environmental Chemistry and Analysis
- Electrochemical sensors and biosensors
- Heavy metals in environment
- Cholinesterase and Neurodegenerative Diseases
- Pharmaceutical and Antibiotic Environmental Impacts
- Enzyme Catalysis and Immobilization
- Heavy Metal Exposure and Toxicity
- Environmental Sustainability and Education
- Pesticide Residue Analysis and Safety
- Marine and coastal ecosystems
- Environmental and biological studies
- Coastal and Marine Management
- Child Nutrition and Water Access
Instituto Federal Fluminense
2015-2025
University of Lisbon
2025
Ian's Friends Foundation
2014-2015
Internet Society
2011
Fundação Oswaldo Cruz
2010
Universidade do Estado do Rio de Janeiro
2010
Escola Nacional de Saúde Pública
2010
Three species of freshwater Brazilian fishes (pacu, Piaractus mesopotamicus ; piavussu, Leporinus macrocephalus , and curimbatá, Prochilodus lineatus ) were exposed to an acute dose 5 ppm methyl parathion organophosphate pesticide. five individuals per exposed, one at a time, 40 liters tap water spiked with Folidol 600. Pesticide concentrations cholinesterase (ChE) activities evaluated in serum, liver, brain, heart, muscle. The bioconcentration was similar for all studied fishes. Brain...
<p>A poluição marinha tem sido razão de preocupação toda sociedade mundial. Os níveis provocados pela ação descontrolada da humanidade têm levado a ONU organizar diversas Convenções e Tratados para disciplinar o uso do recurso mar prevenção ambiente marinho. Foram evocados princípios ambientais como precaução poluidor-pagador na criação um conjunto regras forma contribuir efetivamente diminuição dos riscos em vários aspectos. O Brasil estabelecido importante legislação calcada nos...
A Represa de Juturnaíba, localizada entre os municípios Silva Jardim e Araruama, é o único manancial água doce que abastece toda a Região dos Lagos fluminense. O objetivo desta pesquisa foi avaliar qualidade da do reservatório Juturnaíba por meio análises físico-químicas microbiológicas realizadas montante nos rios, comparando-as com jusante, fim identificar sua hidrodinâmica. Foram feitas seis coletas em pontos estratégicos. afluente maiores restrições na rio Capivari. melhor São João.
Esterase activity found in muscle extracts is useful to evaluate harmful effects of anticholinesterase pollutants. Yet, most procedures applied the extraction fish esterases order investigate their as a biomarker environmental exposure comprise homogenization tissue low-salt solutions, followed by centrifugation separate supernatant enzyme source. However, acetylcholinesterase (AChE), main target these monitoring efforts, membrane-bound protein and only present if carried out using...
A Lagoa de Araruama é a maior laguna hipersalina do mundo e está localizada no sudeste Brasil, estado Rio Janeiro. vem sofrendo perda da qualidade ambiental devido intervenções antrópicas, como o aumento liberação resíduos orgânicos em decorrência crescimento populacional na região litorânea. O objetivo deste trabalho foi identificar alguns impactos sofridos pela município Cabo Frio, através percepção comunidade Praia Siqueira sobre fornecer dados para futuras propostas projetos Educação...
The contamination of coastal areas by petroleum and its derivatives is a relevant issue based on large-scale production consumption. This study presents field laboratory surveys the detoxification enzymes estuarine/coastal catfish Genidens genidens to understand enzymatic responses oil environmental conditions. Field catalase (CAT) glutathione S-tranferase (GST) measurements suggest oxidative stress acting repair mechanisms in fishes, but were not induced diesel as indicated studies. On...
Brazil is noteworthy in South America due to several laws concerning effluent ecotoxicological assessments. Due the growing demand for sanitary toxicity control urban settings, this study carried out a comprehensive assessment of current criteria and standards release receiving water bodies Brazil. The findings reveal that states mostly apply federal legislation, with only six (SP, RJ, MG, PR, SC, RS) establishing more protective laws. These results aid environmental legislation adjustments,...
If the current policy explores utilization of active ingredients in use quickly and to maximum, same does not occur with ban on registration products highly dangerous both health environment. The aim at reducing pesticide toxicity ecotoxicity, required reduce environmental contamination human exposure. To this end, it is essential adjust scientific evaluation parameters concerning lower concentration tolerance limits modernity standards, addition banning for which there evidence...
Trace metals that present toxicity to vertebrates are cause of concern in environmental monitoring programs due impact caused by anthropogenic activity. The distribution these elements is found different settings: water, sediment and biota. Metals such as Pb, Cd, Hg, As Cr related significant damage, which can contaminate man, primarily fish consumption. Some biomarkers be applied via an approach, risk assessment for populations species susceptible exposure toxic effects trace metals....
In Brazil, malacoculture is developed mainly in the state of Santa Catarina, followed by São Paulo and Rio de Janeiro. course development Brazilian mariculture, legislation has addressed sanitary requirements necessary for bivalve commercialization. However, monitoring phycotoxins a challenge, due to often costly reference methods. this context, study evaluated use alternative ecotoxicological bioanalytical methods using Artemia franciscana (brine shrimp) lethality assessments. The results...
Algal blooms are phenomena produced by anthropogenic activities, despite the possible natural causes. In Araruama Lagoon, occurred in 2005 and in subsequent years, causing profound changes phytoplankton communities. These episodes triggered events of extensive fish mortality associated with low levels of dissolved oxygen. Another adverse effect is the production of harmful toxins such as phycotoxins eukaryotic microalgae cyanotoxins produced cyanobacteria. Samples (mullet menhaden) seston...
Trace metals that present toxicity to vertebrates are cause of concern in environmental monitoring programs due impact caused by anthropogenic activity. The distribution these elements is found different settings: water, sediment and biota. Metals such as Pb, Cd, Hg, As Cr related significant damage, which can contaminate man, primarily fish consumption. Some biomarkers be applied via an approach, risk assessment for populations species susceptible exposure toxic effects trace metals....
Algal blooms are phenomena produced by anthropogenic activities, despite the possible natural causes. In Araruama Lagoon, occurred in 2005 and subsequent years, causing profound changes phytoplankton communities. These episodes triggered events of extensive fish mortality associated with low levels dissolved oxygen. Another adverse effect is production harmful toxins such as phycotoxins eukaryotic microalgae cyanotoxins cyanobacteria. Samples (mullet menhaden) seston showed microcystin...
As lagoas costeiras são instrumentos na manutenção de condições climáticas e hidrológicas. Na região Norte Fluminense, elas possuem demasiada representatividade sendo atreladas ao desenvolvimento regional. Contudo, as alterações antrópicas vêm interferindo qualidade desses ecossistemas. Este artigo objetiva uma revisão bibliográfica consequente caracterização das do Açu, Salgada, Grussaí Iquipari, localizadas em São João da Barra/RJ. Nesse sentido, percebeu-se que a urbanização no entorno...
O ecossistema manguezal é um dos mais produtivos do planeta e possui relevante importância ecológica. Ele oferece diversos serviços como a proteção da região costeira, imobilização de contaminantes, fonte alimento refúgio para organismos. No entanto, os manguezais encontram-se frequentemente ameaçados por atividades antrópicas. Os derrames petróleo em áreas próximas manguezais, exemplo, são fontes potenciais entrada contaminantes metais pesados hidrocarbonetos. Dentre outras fontes, podem-se...
La acetilcolineterasa (AChE) es uno de los biomarcadores mas conocidos en programas de monitoreo ecotoxicologico organofosforados y carbamatos. Sin embargo, algunos estudios plantean la posibilidad que acetilcolinesterasa tambien actue como un biomarcador para otros xenobioticos. Con este enfoque hemos realizado pruebas comparacion dos ubicaciones ciudad Arraial do Cabo � RJ, Brasil. playa dos Anjos, una ensenada que alberga puerto considerado entorno impactado por tributilestano...
The Environmental Protection Area of Grussaí has been planned within the region Porto do Açu, onsisting following lagoons: Iquipari, Salgada, Grussaí, and Taí. This study was conducted in Lagoa Taí, 5th district São João da Barra, RJ, aimed to evaluate its water quality through physical, chemical, microbiological analyses from July December 2012. evaluation performed on temporal spatial scale. We evaluated parameters: DO, BOD, E. coli, turbidity, pH total hosphorus. Of six parameters against...
Toxic cyanobacteria blooms have been reported in freshwater sources worldwide and may lead to aquatic biota toxin accumulation trophic chain transfer, resulting ecological public health concerns. To assess effects on microcystin uptake phosphatase, acethylcholinesterase (AChE) carboxylesterase (CarbE) enzymatic activities, an vivo experiment was carried out employing the golden mussel Limnoperna fortunei. These mussels were exposed a Microcystis aeruginosa NPLJ-4 strain (NPLJ-4) for 48 hours...
No estudo em questão, utilizou-se a inibição da enzima acetilcolinesterase para detectar pesticidas organofosforados e carbamatos frutas hortaliças consumidas na cidade de Cabo Frio. Hortaliças ali coletadas, anos distintos (1996 2007) apresentaram todas as amostras. As amostras alface (1996) agrião (2007) foram que maiores teores equivalentes metil-paration, 0,7 1,4 ppm, respectivamente. Os níveis mais baixos detectados nas uvas: 0,2 ppm. A solubilização dos compostos envolvidos no Triton...
Desde o início da ocupação territorial bacia hidrográfica lagoa Feia, foram promovidas alterações na dinâmica hídrica, a qual era considerada empecilho ao desenvolvimento. O cultivo de cana-de-açúcar foi destaque região, uma vez que as condições naturais locais eram favoráveis à cultura. A expansão atividade demandou implementação diversas obras drenagem desde dessecação áreas alagadas, redução das lagoas e calhas rios. Neste sentido, neste trabalho objetivou-se elaborar revisão...