A5038967029- Parasite Biology and Host Interactions
- Bird parasitology and diseases
- Vector-borne infectious diseases
- Coccidia and coccidiosis research
- Mosquito-borne diseases and control
- Turtle Biology and Conservation
- Helminth infection and control
- Parasitic Infections and Diagnostics
- Amphibian and Reptile Biology
- Viral Infections and Vectors
- Leech Biology and Applications
- Animal Nutrition and Physiology
- Aquaculture disease management and microbiota
- Heavy metals in environment
- Venomous Animal Envenomation and Studies
- Crustacean biology and ecology
- Veterinary medicine and infectious diseases
- Research on scale insects
- Research on Leishmaniasis Studies
- Mercury impact and mitigation studies
- Healthcare during COVID-19 Pandemic
- Myxozoan Parasites in Aquatic Species
- Trypanosoma species research and implications
- Heavy Metal Exposure and Toxicity
- Health, Education, and Cultural Studies
Universidade Federal do Amapá
2017-2025
DELL (United States)
2024
Universidade Federal de Mato Grosso do Sul
2006-2015
Universidade Federal do Tocantins
2015
Universidade do Estado do Rio de Janeiro
2011-2014
Fundação Oswaldo Cruz
2010
Universidade Estadual de Campinas (UNICAMP)
2005
The city of Macapá in the Brazilian Amazon faces critical aquatic pollution challenges due to inadequate sanitation infrastructure, leading heavy metal contamination fish within its urban water bodies. This study evaluates concentrations metals (Cu, Cd, Cr, Fe, Mn, Ni, Pb, Zn, Hg) muscle tissues from igarapés, floodplain lakes, and canals. Samples were collected six sites investigate bioaccumulation these their potential human health risks. Using Atomic Absorption...
Macapá City, located in the Brazilian Amazon, faces critical aquatic pollution challenges due to inadequate sanitation infrastructure, leading metal contamination fish within its urban water bodies. Our study evaluated concentrations of metals (Cu, Cd, Cr, Fe, Mn, Ni, Pb, Zn, and Hg) muscle tissues from igarapés, ressaca areas, canals. Samples were collected six sampling sites investigate bioaccumulation these their potential human health risks. All quantified by atomic absorption...
Trypanosomatids of the genera Trypanosoma and Leishmania are parasites medical veterinary importance that infect mammals, including humans domestic wild animals. Among rodents marsupials play a crucial role in maintaining spreading zoonotic transmission cycle these parasites. The present study aimed to detect natural occurrence spp. state Amapá, northern Brazil. In total, 137 samples were analyzed, which 19 (6 13 rodents) positive for trypanosomatid DNA. Partial sequences 18S rRNA gene...
Here we describe, in an unprecedented way for the Brazilian Amazon, one Apicomplexa species infecting anuran Pará, Brazil, using integrative approach that includes taxonomy, providing morphology, morphometrics, and molecular data. Samples were collected between February 2021 2022 community of Curupira, municipality Santarém, industrial area Marabá, both Pará state. Specimens Rhinella marina diptycha captured by hand during active search, blood samples cardiac puncture. One aliquot was used...
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The prevalence and parasitemia of Hepatozoon caimani in the natural population caiman, Caiman yacare, from Pantanal area, state Mato Grosso do Sul, central Brazil, were evaluated according to gender month capture July 2006 February 2008. Blood samples obtained bimonthly a total 229 caimans, 76% positive. Prevalence varied significantly sampling animal size. Almost all adults (100%) young-adults (97%) positive, while 63% juvenile caimans positive youngest individuals negative. These results...
Abstract Most studies on excavation behaviour of A mphisbaenia have been based descriptive analysis through visual observation or external body motion records. Herein, we recorded the excavatory gaits shovel‐headed amphisbaenid L eposternon microcephalum using videofluoroscopy. This technique films by X ‐ray emission, allowing a more detailed amphisbaenid's underground locomotor and performance. Thus, described, for first time, its ascendant cycle backward movement. Furthermore, analysed...
Seventy-five turtles Podocnemis expansa in the Brazilian Amazon were examined for presence of ectoparasites and hemoparasites. Samplings performed three study areas state Tocantins, Brazil. Twenty-five specimens sampled per area (a commercial breeding facility, an indigenous subsistence facility a wild population Javaés River). Hemoparasites genus Haemogregarina found 66% (50/75) turtle specimens, infections restricted to River. The mean level parasitemia was 54/2,000 erythrocytes (2%)....
Mosquitoes that feed on crocodilians are poorly known, despite the potential role of these exothermic animals as reservoirs arboviruses. In this article, we assessed frequency, abundance, and temporal variation caiman-biting mosquitoes well searched for natural vectors blood parasite caimans, Hepatozoon caimani, in Pantanal area central-western Brazil from captures conducted bimonthly September 2006 to 2007 February 2008. A total 5,272 belonging 10 species five genera was caught caimans. The...
Abstract Mosquitoes that feed on crocodilians are poorly known, despite the potential role of these exothermic animals as reservoirs arboviruses. In this article, we assessed frequency, abundance, and temporal variation caiman-biting mosquitoes well searched for natural vectors blood parasite caimans, Hepatozoon caimani, in Pantanal area central-western Brazil from captures conducted bimonthly September 2006 to 2007 February 2008. A total 5,272 belonging 10 species five genera was caught...
Amblyomma rotundatum Koch is a parthenogenetic tick usually associated with reptiles and amphibians. However, relatively few studies on occurrences of ticks in wild reptile populations Brazil have been produced. The aim this study was to analyze the presence species Grussaí restinga, municipality São João da Barra, state Rio de Janeiro, Brazil. Between December 2010 January 2011, 131 individuals belonging nine order Squamata were sampled: lizards Tropidurus torquatus (n = 51), Hemidactylus...
Blood samples from 330 lizards of 19 species were collected to investigate the occurrence haemoparasites. Samplings performed in areas upland (terra-firme) forest adjacent Manaus municipality, Amazonas, Brazil. parasites detected 220 (66%) 12 and comprised four major groups: Apicomplexa (including haemogregarines, piroplasms, haemosporidians), trypanosomatids, microfilarid nematodes viral or bacterial organisms. Order Haemosporida had highest prevalence, with 118 (35%) animals 11 species....
Knowledge of blood parasites in Brazilian chelonians is limited, since they have been recorded only six species. Mesoclemmys vanderhaegei (Bour) a freshwater turtle with wide geographic distribution Brazil, but there little information about its natural history. This paper reports on study the prevalence and infection intensity haemogregarine two subpopulations M. vanderhaegei. The was conducted areas Cerrado Upper Paraguay River basin state Mato Grosso, between November 2010 August 2013....
The prevalence and parasitemia of the piroplasm Sauroplasma sp. were evaluated in Amazon chelonian Podocnemis expansa Brazil. Samples collected from 75 chelonians 3 locations, including a commercial breeding facility, an indigenous subsistence wild population. found 72% (54/75) chelonians, varied among sampling sites. No significant correlations between sex body condition index chelonians. mean rate was 44.14/2,000 erythrocytes (2.2%), no correlation These results suggest that parasite is...