scholarly journals Spatial and temporal distribution of the zoobenthos community during the filling up period of Porto Primavera Reservoir (Paraná River, Brazil)

2009 ◽  
Vol 69 (1) ◽  
pp. 19-29 ◽  
Author(s):  
A. Jorcin ◽  
MG. Nogueira ◽  
R. Belmont
Keyword(s):  
Hydroelectric Power Plant ◽  
Mean Value ◽  
Sao Paulo ◽  
Paraná River ◽  
Second Phase ◽  
São Paulo ◽  
Hydroelectric Power ◽  
Mato Grosso ◽  
Parana River ◽  
Energy Company

This study is part of the limnological monitoring undertaken by the Energy Company of the State of São Paulo (CESP) during the filling up process of the Porto Primavera Reservoir (Hydroelectric Power Plant Engenheiro Sérgio Motta). This reservoir, located in the high Paraná River between the States of São Paulo and Mato Grosso do Sul, is the fourth largest in the country. The first filling up phase started in December 1998 and the second phase in March 2001. Samples for benthic community and sediment characteristics analysis were quarterly collected between August of 1999 and November 2001 and also in August of 2002 (11 sampling campaigns). Samplings were carried out at 13 stations distributed in the reservoir, and at one point located downstream of the dam. 128 invertebrate taxa were identified, being Mollusca, Annelida, Insecta and Nematoda the dominant groups during almost the whole study period. Insecta was the best represented class (9 different orders), and Diptera contributed with higher number of taxa, 63. The exotic species of bivalve Corbicula fluminea was recorded in all sampling stations showing its great capacity to colonize new habitats in the neotropical region. Noticeable variations in the fauna density were observed, considering both different periods and locations. The maximum density of organisms (mean value of 7812 ind.m-2) was recorded in the center of the reservoir, and the minimum (mean value 9 ind.m-2) in the more lacustrine area near the dam. The greatest species richness per sample (24 taxa) was observed in the reservoir upstream (fluvial zone). The maximum diversity (Shannon-Wiener Index) per station/period, 3.82 and 3.86 bits.ind-1, were calculated in the transitional river/reservoir zone during the beginning (August 1999) and in the reservoir central zones in the end (August 2002) of the filling up period, respectively. There was no clear relation between the distribution of the different faunistic groups and the sediment granulometric characteristics. However, the decrease or even total absence of organisms was observed at stations with high organic matter concentration (>40%) in a low degradation state (coarse detritus). This fact may be related to the lack of sediment deposits, which would cause difficulties to the fixation of the benthic fauna. Additionally, in those conditions more reduced chemical conditions are expected in function of the intense decomposition process of the flooded vegetation.

scholarly journals INVENTARIAMENTO DE SERPENTES: ANÁLISE COMPARATIVA NAS PROXIMIDADES DO RIO PARANÁ ENTRE O NOROESTE DO ESTADO DE SÃO PAULO E LESTE DO ESTADO MATO GROSSO DO SUL

2021 ◽  
Vol 10 (12) ◽  
pp. 1-12
Author(s):  
Beatriz Nogueira de LIMA ◽  
Maria Carolina Machiavelli MARTINS ◽  
Eliana do Amaral GIMENEZ
Keyword(s):  
Comparative Analysis ◽  
Sao Paulo ◽  
Paraná River ◽  
The State ◽  
São Paulo ◽  
Santa Fe ◽  
Mato Grosso ◽  
Parana River ◽  
Boa Constrictor ◽  
Mato Grosso Do Sul

O objetivo deste trabalho é inventariar as espécies de serpentes encontradas na divisa entre os estados de São Paulo e Mato Grosso do Sul, nas proximidades do Rio Paraná, tendo como referência os municípios de Santa Fé do Sul (SP) e Aparecida do Taboado (MS) e incluindo os municípios adjacentes. Com o auxílio da comunidade, corpo de bombeiros e secretaria de saúde, foram coletados dados acerca da ocorrência de serpentes na região. Foram registrados, preliminarmente, um total de 11 gêneros, 12 espécies e 34 espécimes de serpentes distribuídas em quatro famílias (Boidae, Elapidae, Viperidae e Dipsadidae). No Noroeste de São Paulo, foram encontradas 10 espécies, 3 delas apenas encontradas no estado de São Paulo, enquanto que no Mato Grosso do Sul, 9 espécies, 2 delas apenas encontradas no estado de Mato Grosso do Sul. As demais espécies foram encontradas em ambos os estados. Foi registrado que a ocorrência de Boa constrictor é notoriamente maior que a de outras espécies, sendo 60% mais alta que a segunda maior ocorrência a de Erytrolamprus Poecilogyrus. Sendo uma análise comparativa, não há uma grande diferença, do número total de espécies em ambos os estados de um estado para o outro. Em relação à área da saúde, os dados revelam que há maior quantidade de acidentes ofídicos na cidade de Paranaíba no estado de Mato Grosso do Sul.   INVENTORY OF SNAKES: COMPARATIVE ANALYSIS AROUND PARANÁ RIVER BETWEEN THE NORTHWEST OF THE STATE OF SÃO PAULO AND EAST OF THE STATE OF MATO GROSSO DO SUL   ABSTRACT This paper aims to inventory snakes species found in the border of both São Paulo and Mato Grosso do Sul States, around Paraná River, having as reference the municipalities of Santa Fé do Sul (SP) and Aparecida do Taboado (MS), including bordering municipalities. Data about snake’s incidence in that region was collected with the help of the community, Fire Brigade and Health Secretary. At first, it was reported, a total of 11 genres, 12 species, and 34 specimens of snakes distributed in four families (Boidae, Elapidae, Viperidae and Dipsadidae). In São Paulo northeast 10 species were found, 3 of them were only found in São Paulo, whereas in Mato Grosso do Sul, 19 species, 2 of them were found in Mato Grosso do Sul. All the other species were found in both States. It was recorded that the incidence of Boa constrictor is notoriously higher than the incidence of other species, being 60% higher than the second one for Erytrolamprus Poecilogyrus. It is a comparative analysis, thus there is not a big difference in the total number of species for both States. Regarding health issues, the data presented a higher quantity of ophidian accidents in the city of Paranaíba in the State of Mato Grosso do Sul.   Keywords: Inventory of Snakes. São Paulo-SP. Mato Grosso do Sul-MS.

scholarly journals Effects of flooding of the River Paraná on the temporal activity of Anopheles (Nyssorhynchus) darlingi Root (Diptera: Culicidae), at the border state of Mato Grosso do Sul and São Paulo, Brazil

2010 ◽  
Vol 43 (5) ◽  
pp. 516-522 ◽  
Author(s):  
Almério de Castro Gomes ◽  
Marcia Bicudo de Paula ◽  
Delsio Natal ◽  
Sabina Léa Davidson Gotlieb ◽  
Luis Filipe Mucci
Keyword(s):  
Activity Patterns ◽  
Electrical Energy ◽  
Sao Paulo ◽  
Malaria Vectors ◽  
Hydroelectric Power Station ◽  
São Paulo ◽  
Anopheles Darlingi ◽  
Hydroelectric Power ◽  
Mato Grosso ◽  
Mato Grosso Do Sul

INTRODUCTION: Study of the temporal activity of malaria vectors during the implantation of a hydroelectric power station on the River Paraná, intended to generate electrical energy. The river separates the States of São Paulo and Mato Grosso do Sul, in Brazil. The objective was to verify whether alterations occurred in the wealth and diversity indices of Anopheles, following two successive floods, extended to the temporal activity and nycthemeral rhythm followed over a five year period. METHODS: Mosquito capture was performed monthly using the Human Attraction Technique and Shannon Traps. The first, executed for 24h, provided the nycthemeral rhythm and the second, lasting 15h, permitted the tracking of Anopheles during the two floods. RESULTS: The bimodal pattern of Anopheles darlingi defined before these floods was modified throughout the environment interventions. The same effect had repercussions on the populations of An albitarsis s.l., An triannulatus and An galvaoi. Activity prior to twilight was less affected by the environment alterations. CONCLUSIONS: The dam construction provoked changes in Anopheles temporal activity patterns, permitting classification of the area as an ecologically steady and unstable situation. Differences observed in Anopheles behavior due to the capture methods revealed the influence of solo and multiple attractiveness inside the populations studied.

scholarly journals Effects of Artificial Flooding for Hydroelectric Development on the Population ofMansonia humeralis(Diptera: Culicidae) in the Paraná River, São Paulo, Brazil

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Marcia Bicudo de Paula ◽  
Almério de Castro Gomes ◽  
Delsio Natal ◽  
Ana Maria Ribeiro de Castro Duarte ◽  
Luís Filipe Mucci
Keyword(s):  
Hydroelectric Plant ◽  
Maximum Level ◽  
Sao Paulo ◽  
Paraná River ◽  
São Paulo ◽  
Entomological Surveillance ◽  
Parana River ◽  
Animal Contact ◽  
Two Phases ◽  
Area Monitoring

The closure of two phases of the dam at the Porto Primavera Hydroelectric Plant on the Paraná River flooded a flawed system located in the Municipality of Presidente Epitácio, São Paulo state, favoring the proliferation of aquatic weeds. This study aimed to observe the population ofMansonia humeralisin the area, monitoring the richness, diversity, and dominance of this species both before and during different phases of reservoir flooding as well as evaluate its possible consequences concerning human and animal contact. Adult mosquitoes were collected monthly in the following periods: at the original level, after the first flood, and after the maximum level had been reached between 1997 and 2002. Collection methods used were an aspirator, a Shannon trap, and the Human Attractive Technique. A total of 30,723 mosquitoes were collected,Ma. humeralisaccounting for 3.1% in the preflood phase, 59.6% in the intermediate, and 53.8% at maximum level. This species is relevant to public health, since the prospect of continued contact betweenMa. humeralisand the human population enhances the dam’s importance in the production of nuisance mosquitoes, possibly facilitating the transmission of arboviruses. Local authorities should continue to monitor culicid activity through sustainable entomological surveillance.

scholarly journals ARQUEOLOGIA DAS PRÁTICAS MORTUÁRIAS DE GRUPOS TUPINAMBÁ E GUARANI

2018 ◽  
Vol 33 (2) ◽  
pp. 184
Author(s):  
Mariana Alves Pereira Cristante
Keyword(s):  
Rio De Janeiro ◽  
Human Remains ◽  
River Basins ◽  
Sao Paulo ◽  
Paraná River ◽  
São Paulo ◽  
Parana River ◽  
Site Characteristics ◽  
The Relationship

Este trabalho trata da variabilidade de contextos funerários associados a grupos Tupinambá e Guarani das regiões do Paranapanema, alto Paraná e regiões próximas dos estados de São Paulo e Rio de Janeiro. Fizemos a análise de material cerâmico, contextos funerários, remanescentes humanos, características dos sítios e fontes etnohistóricas, e essas análises combinadas nos trouxeram diversas considerações a serem feitas sobre a interpretação dos contextos, sua variabilidade, as vasilhas funerárias e a relação entre vivos e mortos para esses grupos. ARCHEOLOGY OF THE MORTUAL PRACTICES OF TUPINAMBÁ AND GUARANI GROUPSABSTRACTThis research will deal with the variability of funerary contexts associated with Tupinambá and Guarani groups from Paranapanema and Paraná river basins, and regions near of São Paulo and Rio de Janeiro states. We did the analysis of pottery, funerary contexts, human remains, site characteristics and ethnohistorical sources, and these combined analyzes brought us several considerations to be made about the interpretation of contexts, their variability, funerary vessels and the relationship between living and dead for these groups.Keywords: funerary contexts, Tupinambá and Guarani groups, pottery, human remains

scholarly journals Vascular plants of oxbow lakes of Turvo River, Upper Paraná River basin, São Paulo State, Brazil

Check List ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 058 ◽  
Author(s):  
Renato Braz de Araujoa ◽  
Francisco Langeani ◽  
Neusa Taroda Ranga
Keyword(s):  
River Basin ◽  
Vascular Plants ◽  
Sao Paulo ◽  
Paraná River ◽  
São Paulo ◽  
Oxbow Lakes ◽  
Parana River ◽  
Upper Paraná River ◽  
Upper Paraná River Basin ◽  
Paraná River Basin

Vascular plants were investigated in oxbow lakes of Turvo River, Upper Paraná River basin, between Icém and Nova Granada municipalities, state of São Paulo, Brazil. In this region, six lagoons were sampled: Ganzella, Mustafá, Braço Morto, 45, Federal, and Parente. The survey showed a total of 54 species, 36 genera and 22 families. The species richest families were Poaceae, Cyperaceae, and Polygonaceae. Eichhornia crassipes (Pontederiaceae) was the single species encountered in all the six lakes.

scholarly journals Passage performance of long-distance upstream migrants at a large dam on the Paraná River and the compounding effects of entry and ascent

2012 ◽  
Vol 10 (4) ◽  
pp. 785-795 ◽  
Author(s):  
Ricardo Luiz Wagner ◽  
Sergio Makrakis ◽  
Theodore Castro-Santos ◽  
Maristela Cavicchioli Makrakis ◽  
João Henrique Pinheiro Dias ◽  
...  
Keyword(s):  
Hydroelectric Power Plant ◽  
Paraná River ◽  
Failure Rates ◽  
Migratory Fish ◽  
Hydroelectric Power ◽  
Long Distance ◽  
Prochilodus Lineatus ◽  
Piaractus Mesopotamicus ◽  
Parana River ◽  
Large Dam

This paper presents results of a fishway evaluation performed at the Engenheiro Sérgio Motta Hydroelectric Power Plant (known as Porto Primavera) - CESP, Paraná River, Brazil. The evaluation was designed to quantify entry and passage proportions of 4 long-distance migratory fish species: Brycon orbignyanus (piracanjuba), Piaractus mesopotamicus (pacu), Prochilodus lineatus (curimba), and Rhinelepis aspera (cascudo-preto). Proportions finding and entering the fishway differed between species, ranged from 7.4 % (Prochilodus lineatus) to 55.4% (Piaractus mesopotamicus). Also, proportion passing was different between species, ranged from 31% (R. aspera) to 100% (Prochilodus lineatus). Fish that were marked and released within the fishway had greater failure rates than those that entered volitionally. Total time to pass ranged from 1.48 hours (Prochilodus lineatus) to 178.9 hours (R. aspera). Failure rates were greatest in the lower end of the fishway. Although some individuals of all species passed successfully, significant challenges remain to restoring connectivity of the upper Paraná River.

scholarly journals The helminth community ofGeophagus proximus(Perciformes: Cichlidae) from a tributary of the Paraná River, Ilha Solteira Reservoir, São Paulo State, Brazil

2012 ◽  
Vol 87 (2) ◽  
pp. 203-211 ◽  
Author(s):  
A.C. Zago ◽  
L. Franceschini ◽  
M.C. Zocoller-Seno ◽  
R. Veríssimo-Silveira ◽  
A.A.D. Maia ◽  
...  
Keyword(s):  
Sao Paulo ◽  
Paraná River ◽  
Helminth Parasites ◽  
São Paulo ◽  
Larval Stages ◽  
Parana River ◽  
Paulo State ◽  
Host Sex ◽  
São Paulo State ◽  
First Time

AbstractThis study aimed to evaluate the helminth parasites ofGeophagus proximusfrom the São José dos Dourados River, a tributary of Paraná River, Ilha Solteira Reservoir, São Paulo State, Brazil. From May 2006 to May 2007, 116G. proximusspecimens were examined and seven different taxa of helminth were collected and identified: proteocephalidean plerocercoids (Cestoda); metacercariae ofAustrodiplostomumcompactum, Clinostomum heluansandClinostomumsp. (Trematoda); andRaphidascaris(Sprentascaris)hypostomi, and larvae ofRaphidascarissp. andContracaecumsp. (Nematoda). All parasites presented the typical aggregated pattern of distribution, as well as the presence of a high number of larval stages, an absence of influence of the host sex and seasonality upon community parameters, as well as a correlation between species richness and host body weight. Moreover, with the exception ofA. compactummetacercariae, all helminths found in this study are reported for the first time inG. proximus.

scholarly journals Proteocephalid cestode infection in tucunaré Cichla sp. (Osteichthyes: Cichlidae) from Paraná River, São Paulo

2011 ◽  
Vol 63 (3) ◽  
pp. 584-590 ◽  
Author(s):  
R.S. Santos ◽  
K. Roumbedakis ◽  
N.G. Marengoni ◽  
H.K. Takahashi ◽  
F.D.A. Pimenta ◽  
...  
Keyword(s):  
Sao Paulo ◽  
Paraná River ◽  
São Paulo ◽  
Parana River

The occurrence of proteocephalid cestodes in tucunaré Cichla sp., captured monthly, between August 2000 and August 2001, in Paraná River, Presidente Epitácio, SP, was evaluated. From 128 specimens, 71 (55.6%) were parasitized by Proteocephalus macrophallus (Diesing, 1850) and/or P. microscopicus (Woodland, 1935). Total mean abundance and intensity were 157.08 and 223.41, respectively. The highest prevalence (90%) mean abundance (1,122.4) and intensity indexes (1,247.11) occurred in February 2001, while in September 2000 there were no observed animals infected by cestodes. No relationship between the sex of the host and parasitological indexes was found.

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