scholarly journals Protozooplankton and its relationship with environmental conditions in 13 water bodies of the Mogi-Guaçu basin - SP, Brazil

2013 ◽  
Vol 13 (4) ◽  
pp. 152-163 ◽  
Author(s):  
Inessa Lacativa Bagatini ◽  
Ana Lúcia Gerardi Spínola ◽  
Bianca de Miranda Peres ◽  
Adrislaine da Silva Mansano ◽  
Mafalda Alexandra Antunes Rodrigues ◽  
...  
Keyword(s):  
Environmental Variables ◽  
Sao Paulo ◽  
Water Bodies ◽  
Bromophenol Blue ◽  
São Paulo ◽  
Paulo State ◽  
Two Samples ◽  
São Paulo State ◽  
Biological Aspects ◽  
The Mean

Protozooplankton is an important component of the aquatic microbial food webs and its composition, density, and distribution reflect the chemical, physical, and biological aspects of the environment. Considering the scarce literature on freshwater protozoans in Brazil and on protozoan ecology in subtropical environments, we listed the ciliates and amoebae taxa found in 13 water bodies in São Paulo State and analyzed their abundance in relation to the environmental variables. We collected two samples in each environment, fixed immediately with mercuric chloride and stained with bromophenol blue. After microscopical analysis, 74 protozoan genera were identified and the Ciliophora were dominant in the majority of the environments. The Stichotrichia, represented mostly by the genus Halteria, occurred in all environments, and was the dominant subclass in five of them. The canonic correspondence analysis of the most frequent genera and the environmental variables showed that nitrite and nitrate were the variables that better explained the distribution of Limnostrombidium, Urotricha, and Vorticella. The densities of the genera Halteria, Coleps, and of the species Cinetochilum margaritaceum were positively affected by increasing concentrations of dissolved oxygen, particulate phosphate, conductivity, and temperature. C. margaritaceum were also negatively affected by increasing concentrations of nitrite and nitrate. Considering that we made only one sampling in each environment, the richness was high compared to the mean diversity of lakes in the São Paulo State. The Diogo Lake, located in an ecological reserve, was the richest one, confirming the need of more research on the biodiversity of more preserved environments.

scholarly journals Municipalities of higher vulnerability to Sylvatic Yellow Fever occurrence in the São Paulo State, Brazil

2011 ◽  
Vol 53 (6) ◽  
pp. 335-339 ◽  
Author(s):  
Eduardo Stramandinoli Moreno ◽  
Rita de Cássia Barradas Barata
Keyword(s):  
High Risk ◽  
Yellow Fever ◽  
Environmental Variables ◽  
Multiple Correspondence Analysis ◽  
Sao Paulo ◽  
São Paulo ◽  
Prevention Measures ◽  
Paulo State ◽  
São Paulo State ◽  
Yellow Fever Vaccination

Until 1999 the endemic cases of Sylvatic Yellow Fever were located in the states of northern, midwestern and pre-Amazon regions. Since then, the disease progressively expanded its territory of occurrence, cases being registered beyond the traditional boundaries of endemism. The São Paulo State is considered to be part of this context, since after decades without registration of autochthonous cases of the disease, it reported, in 2000 and 2008-2009, epizootic occurrence in non-human primates and 30 cases in humans. Facts like these, added to the increase in incidences of serious adverse effects resulting from the Yellow Fever vaccination, have highlighted the importance of defining priority municipalities for vaccination against the disease in the state. Two groups of municipalities, some affected and some non-affected by YF, were compared for environmental variables related to the eco-epidemiology of the disease according to literature. The Multiple Correspondence Analysis (MCA) was used to pinpoint the factor able to differentiate the two groups of municipalities and define the levels of risk. The southeast region of the São Paulo State was considered to be the area with a higher number of municipalities classified as high risk and should be considered a priority for the application of prevention measures against Yellow Fever.

scholarly journals Canine rabies epidemiology in Araçatuba and neighborhood, Northwestern São Paulo State - Brazil

2004 ◽  
Vol 37 (2) ◽  
pp. 139-142 ◽  
Author(s):  
Luzia Helena Queiroz da Silva ◽  
César Eduardo Bissoto ◽  
Ádna Cleia B. Delbem ◽  
Clara Isabel de Lucca Ferrari ◽  
Sílvia Helena Venturoli Perri ◽  
...  
Keyword(s):  
Urban Areas ◽  
Sao Paulo ◽  
São Paulo ◽  
Canine Rabies ◽  
Paulo State ◽  
São Paulo State ◽  
The Mean ◽  
Northwest Region ◽  
Epidemiological Characteristics ◽  
Rabies Diagnosis

Epidemiological characteristics of canine rabies in the northwest region of São Paulo State (Araçatuba region), Brazil, from 1993 to 1997 are presented. Out of 1,984 dogs, a total of 351 (17.7%) were positive for rabies diagnosis; 89% (312/351) of these occurred in urban areas and 85% (266/312) of the urban positive cases were among owned dogs. The mean age of the rabid dogs was 34 months and 61% were male. Aggressive behavior was observed in 77% of rabid dogs, followed by lack of coordination and paralysis (42%) and 48% of these dogs were responsible biting people or other animals. Information about vaccination status was obtained from 182 records and 51% of rabid dogs were non-vaccinated. The number of unvaccinated rabid dogs indicates a low vaccination index and this factor added to the high dog/man ratio must have contributed to the canine rabies epizootic observed in the studied area.

scholarly journals Colibacillosis in lambs is associated to type I heat-stable enterotoxin in a farm in São Paulo State, Brazil

2012 ◽  
Vol 42 (5) ◽  
pp. 854-857 ◽  
Author(s):  
Annelize Zambon Barbosa Aragão ◽  
Marcelo Ananias Teocchi ◽  
Maria Clara Duarte Fregolente ◽  
Maria Silvia Viccari Gatti ◽  
Alexandre Vaz Pires ◽  
...  
Keyword(s):  
Small Ruminants ◽  
Sao Paulo ◽  
Type I ◽  
São Paulo ◽  
Cytopathic Effects ◽  
Paulo State ◽  
Heat Stable ◽  
Two Samples ◽  
São Paulo State ◽  
Hlya Gene

Twenty seven (48.2%) culture supernatants of 56 Escherichia coli isolated from diarrheic lamb feces (7 to 10 days old) in São Paulo State, Brazil, presented positive results to suckling mice assay (fluid accumulation) but none caused cytopathic effects on Vero and CHO cells, indicating that these strains did not produced LT or VT toxins. PCR assays showed that these 27 E. coli strains harbored estA, that codifies for STa, but not for stx1, stx2 or cnf genes. The positive STa strains were checked for genes that codify for F41, F17 and K99 fimbriae, wich are considered colonization factors in ETEC. Only F17 was detect in two samples (7.4%). Twelve of 27 STa positive carried hlyA gene and presented hemolytic activity in blood Agar. Presence of rotavirus was not detected among the diarrheic feces. These data suggests that STa must be an important diarrheagenic factor to small ruminants in São Paulo State.

scholarly journals Occurrence of Mesocyclops ogunnus Onabamiro, 1957 (Copepoda Cyclopoida) in water bodies of São Paulo State, identified as Mesocyclops kieferi Van de Velde, 1984

2002 ◽  
Vol 62 (4a) ◽  
pp. 615-620 ◽  
Author(s):  
T. MATSUMURA-TUNDISI ◽  
W. M. SILVA
Keyword(s):  
Related Species ◽  
Sao Paulo ◽  
The State ◽  
Water Bodies ◽  
São Paulo ◽  
Closely Related Species ◽  
Paulo State ◽  
The World ◽  
São Paulo State ◽  
Copepoda Cyclopoida

The aim of this work is clarify the identification of Mesocyclops ogunnus that occur in several reservoirs in the State of São Paulo and that was previously identified as Mesocyclops kieferi. These two species are closely related species with very similar characteristics. The differential characteristics are presented and the distribution of both species in the world is discussed.

scholarly journals Helminth fauna of Astyanax fasciatus Cuvier, 1819, in two distinct sites of the Taquari River, São Paulo State, Brazil

2015 ◽  
Vol 75 (1) ◽  
pp. 242-250 ◽  
Author(s):  
AA Acosta ◽  
J. Queiroz ◽  
H. Brandão ◽  
RJ Silva
Keyword(s):  
Sao Paulo ◽  
Host Population ◽  
Helminth Fauna ◽  
São Paulo ◽  
New Host ◽  
Paulo State ◽  
Astyanax Fasciatus ◽  
São Paulo State ◽  
The Mean ◽  
Direct Cycle

This study assessed the helminth fauna of Astyanax fasciatus in two distinct sites of the Taquari River, São Paulo State, with 30 individuals sampled in a lotic site and 30 in a lentic site, recording the monogeneans: Cacatuocotyle paranaensis, Characithecium costaricensis, Diaphorocleidus kabatai, Jainus sp., Notozothecium sp. and Gyrodactylus sp., the digenean Antorchis lintoni and no-identified metacercariae; the nematode Procamallanus (Spirocamallanus) inopinatus and no-identified larvae. The mean abundances of total monogeneans (U = 1053; p = 0.042) and C. costaricensis (U = 1107; p = 0.005) were higher in the lotic site. This difference may be due to the higher density of the host population in the lotic site, and the water transparence in lentic environments that prevents A. fasciatus to form shoals, precluding the exchange of parasites with direct cycle within a host population. This study is the first report of the helminth fauna of A. fasciatus in the Taquari River, with ten taxa recorded, and reports A. fasciatus as a new host for Notozothecium sp. and C. paranaensis.

scholarly journals Several rare freshwater planktic Cyanobacteria (Cyanoprokaryotes) from reservoirs in South America

Hoehnea ◽  
2007 ◽  
Vol 34 (1) ◽  
pp. 49-58 ◽  
Author(s):  
Jiøi Komárek ◽  
Jaroslava Komárková-Legnerová
Keyword(s):  
South America ◽  
Sao Paulo ◽  
Water Bodies ◽  
São Paulo ◽  
Paulo State ◽  
São Paulo State

Ten rare filamentous cyanobacterial oscillatorialean morphospecies, recorded in plankton of freshwater water bodies in tropical and subtropical South America, mainly in São Paulo State, Brazil, are described in this article. Four morphospecies from the genera Romeria, Arthrospira, Planktothricoides and Hormoscilla are not identifiable according to literature, and they are described as new for science.

scholarly journals Disaggregation of daily rainfall data for the Caraguatatuba city, in São Paulo State, Brazil

RBRH ◽  
2019 ◽  
Vol 24 ◽  
Author(s):  
Daniela Martins ◽  
Maria Luiza Teofilo Gandini ◽  
Nadiane Smaha Kruk ◽  
Paulo Ivo Braga Queiroz
Keyword(s):  
Daily Rainfall ◽  
Rain Gauge ◽  
Sao Paulo ◽  
São Paulo ◽  
Relative Deviation ◽  
Study Region ◽  
Mean Values ◽  
Paulo State ◽  
São Paulo State ◽  
The Mean

ABSTRACT The objective of this study is to present disaggregation coefficients for intense daily rainfalls for E2-046 rainfall station, located at Caraguatatuba, São Paulo state. The data obtained through rain gauge refer to a continuous period (31 years of series) and had a strong correlation with the measurements of the rain gauge, validating the pluviographs reading, which attributed greater reliability to the results. The average coefficient “24 hours”/“1-day” found for the study region was 1.075, which differs significantly from the values found in literature. The relative deviation considering other durations, and consequently other precipitation coefficients in relation to the mean values of the disaggregation values of the E2-046 station reached 22.06% (18 hours/“24 hours”). The relative deviation of rainfall disaggregation coefficients of the station studied in relation to the mean coefficients for the cities of São Paulo State to small durations was quite high, reaching almost 50% (10 minutes /“24 hours”). This reinforces the need of using local disaggregation coefficients.

scholarly journals Detection of anti-Toxoplasma gondii antibodies in wild free-living birds and mammals from the northwest region of São Paulo state, Brazil

2021 ◽  
Vol 58 ◽  
pp. e176683
Author(s):  
Lilian Castiglioni ◽  
Luiz Paulo Nogueira Aires ◽  
Vinícius Matheus Ferrari ◽  
Fernando Henrique Antunes Murata ◽  
Herbert Sousa Soares ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Animal Species ◽  
Sao Paulo ◽  
São Paulo ◽  
Wild Animals ◽  
Free Living ◽  
Paulo State ◽  
Two Samples ◽  
São Paulo State ◽  
Northwest Region

Toxoplasmosis is a protozoonosis caused by an obligate intracellular parasite named Toxoplasma gondii, which can infect humans and a large number of homeothermic animal species with worldwide distribution. The present study aimed to detect anti T. gondii antibodies from serological samples of free living wild animals from the northwest region of São Paulo state, Brazil. Thirty-two samples (eight from birds and 24 from mammals) were analyzed by the modified agglutination test (MAT) using 5 cut-off points for birds and 25 for mammals. Seropositivity was observed in 25% (2/8) of birds, including the species Rupornis magnirostris (roadside hawk) and Caracara plancus (southern caracara), and 29.2% (7/24) animals were seropositive among mammals, including one hoary fox (Lycalopex vetulus), two maned wolves (Chrysocyon brachyurus), one black howler monkey (Alouatta caraya), two crab-eating foxes (Cerdocyon thous) and one gray brocket deer (Mazama gouazoubira). The results obtained with the present study indicate the exposure to T. gondii of free-living wild animals from the northwest region of São Paulo state and, therefore, that they probably play a role in the transmission and maintenance of T. gondii in the environment they inhabit. Thus, identification of the infection in several animal species in the region indicates the environmental contamination of the area. Studies of this nature may help to understand the importance of the prevention and control of this disease in Brazil.

scholarly journals Anura, Estação Ecológica de Jataí, São Paulo state, southeastern Brazil

Check List ◽  
2009 ◽  
Vol 5 (3) ◽  
pp. 495 ◽  
Author(s):  
Vitor Hugo Mendonça do Prado ◽  
Fernando Rodrigues Da Silva ◽  
Natacha Yuri Nagatani Dias ◽  
José Salatiel Rodrigues Pires ◽  
Denise De Cerqueira Rossa-Feres
Keyword(s):  
Sao Paulo ◽  
The State ◽  
Water Bodies ◽  
Southeastern Brazil ◽  
São Paulo ◽  
Semideciduous Forest ◽  
Paulo State ◽  
Anuran Species ◽  
Exploratory Survey ◽  
São Paulo State

The Estação Ecológica de Jataí comprises one of the largest mesophytic semideciduous forest and savanna remnants in the state of São Paulo. However, anuran surveys on this site have not been registered in the literature. As result of an exploratory survey conducted in water bodies in the mesophytic semideciduous forest and surroundings in December 2006, we recorded 21 anuran species belonging to five families and 10 genera. These findings contribute to the knowledge of the anuran fauna associated to the mesophytic semideciduous forest of São Paulo state, Brazil.

scholarly journals Yellow fever epizootics in non-human primates, São Paulo state, Brazil, 2008-2009

2013 ◽  
Vol 55 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Eduardo Stramandinoli Moreno ◽  
Roberta Spinola ◽  
Cilea Hatsumi Tengan ◽  
Roosecelis Araujo Brasil ◽  
Melissa Mascheratti Siciliano ◽  
...  
Keyword(s):  
Yellow Fever ◽  
Biological Samples ◽  
Conservation Status ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Paulo State ◽  
Two Samples ◽  
Sentinel Events ◽  
São Paulo State

Since 2000, the expansion of Sylvatic Yellow Fever (YF) has been observed in the southeast of Brazil, being detected in areas considered silent for decades. Epizootics in non-human primates (NHPs) are considered sentinel events for the detection of human cases. It is important to report epizootic events that could have impact on the conservation status of susceptible species. We describe the epizootics in NHPs, notified in state of São Paulo, Brazil, between September 2008 to August 2009. Ninety-one epizootic events, involving 147 animals, were reported in 36 counties. Samples were obtained from 65 animals (44.2%). Most of the epizootics (46.6%) were reported between March and April, the same period during which human cases of YF occurred in the state. Biological samples were collected from animals found dead and were sent to Instituto Adolfo Lutz, in São Paulo. Two samples, collected in two counties without an indication for YF vaccination, were positive for the virus. Another 48 animals were associated with YF by clinical-epidemiological linkage with laboratory confirmed cases. Because the disease in human and NHPs occurred in the same period, the detection of the virus in NHPs did not work as sentinel, but aided in the delineation of new areas of risk.

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