Dominant and co-existing species of Cyanobacteria from a Eutrophicated reservoir of Rio Grande do Norte State, Brazil

Chellappa, Naithirithi Tiruvenkatachary; Costa, Maria Aliete Medeiros

doi:10.1016/s1146-609x(03)00005-5

Cited by 71 publications

(67 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Discharge of nutrients into water bodies have been reported to increase phytoplankton density, especially cyanobacteria (PIZZOLON et al, 1999;NOGUEIRA et al, 2010;GOWEN et al, 2012). Furthermore, Chellappa and Costa (2003) found that the intensive fish-farming in a northeastern Brazil reservoir provided favorable conditions for the dominance of cyanobacteria. The presence of cyanobacteria is indicative of eutrophic or high trophic level environments.…”

Section: Introductionmentioning

confidence: 99%

“…In northeastern Brazil, the genus Planktothrix has been found in the states of Maranhão (NOGUEIRA et al, 2005), Rio Grande do Norte (CÂMARA et al, 2007;CHELLAPPA et al, 2009) and Pernambuco (MOURA et al, 2008). In the state of Pernambuco, 39 reservoirs classified as eutrophic have often demonstrated cyanobacterial blooms of Cylindrospermopsis raciborskii (BOUVY et al, 1999(BOUVY et al, , 2000(BOUVY et al, , 2001, Microcystis aeruginosa (CHELLAPPA; COSTA, 2003) and Anabaena spiroides (MOLICA et al, 2005;LIRA et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of filamentous cyanobacteria on the water quality of two tropical reservoirs

Barros

Lopes

Carvalho³

et al. 2017

RBRH

View full text Add to dashboard Cite

Artificial lakes play an important role in water availability in tropical semi-arid Northeastern Brazil. However, in addition to the negative effects that dams have on the water quality of rivers, other practices such as discharge of untreated wastewater, intensive crop fertilization and fish farming have been contributing to water quality deterioration. Climate change may be another driver of water quality decrease. Increases in precipitation and drought intensities as well as temperature increase may redefine the dynamics of planktonic communities and favour species more adapted to the new environment. Water samples were collected in two reservoirs selected based on the recurrence of positive results for saxitoxins, Acarape do Meio (AM) and Sitios Novos (SN). In general, diversity in SN (1.08) was higher than in the AM (0.60). Phytoplankton dynamics in these reservoirs differ from other reservoirs in the same region of Brazil, in the sense that filamentous cyanobacteria are dominant. Furthermore, lower diversity, concentration and richness of chlorophyceae and bacillariophyceae were found in both reservoirs. Increase in diversity was observed during the intense rainy season of 2011, suggesting a slight improvement of water quality. A close inverse correlation between Cylindrospermopsis sp and other cyanobacteria was found in SN (R 2 = -0.862) and in AM (R 2 = -0.997) and the data collected demonstrates that a season with intensive rainfall may lead to lower cyanobacteria concentrations probably due to water dilution and higher flushing rates.Keywords: Artificial reservoirs; Freshwater cyanobacteria; Semi-arid regions; Temporal phytoplankton dynamics; Eutrophication. RESUMOOs lagos artificiais tem um papel primordial na disponibilidade hídrica no semi-árido Brasileiro. Entretanto, além dos efeitos negativos que os barramentos dos rios causam sobre a qualidade da água, a descarga de esgotos, a irrigação e a piscicultura intensivas vêm acentuando a deterioração da qualidade da água em um ritmo sem precedentes nesta região. A mudança climática é outro fator de impacto negativo na qualidade da água. O aumento da intensidade das precipitações pode redefinir a dinâmica das comunidades de plâncton e espécies mais adaptadas a ambientes extremamente variáveis. Os reservatórios estudados, Acarape do Meio (AM) e Sítios Novos (SN), foram selecionados com base na recorrência de resultados positivos para saxitoxinas. A dinâmicas do fitoplâncton encontrada, difere de outras áreas da mesma região, no sentido em que as cianobactérias filamentosas são dominantes. Baixas diversidade, concentração média e riqueza de Chlorophyceae e Bacillariophyceae foram encontrados em ambos os reservatórios, embora tenha sido observado um aumento durante o intenso período chuvoso de 2011, sugerindo uma ligeira melhoria da qualidade da água. Em geral, a diversidade no reservatório SN (1,08) foi maior que no AM (0,60). Uma correlação inversa entre a concentração de Cylindrospermopsis sp e outras cianobactérias foi encontrada nos reservatór...

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of filamentous cyanobacteria on the water quality of two tropical reservoirs

Barros

Lopes

Carvalho³

et al. 2017

RBRH

View full text Add to dashboard Cite

show abstract

“…Chellapa et al (1998) studied phytoplankton from Engenho Armando Ribeiro Gonçalves Reservoir-RN (Brazil). Chellapa and Costa (2003) discussed the ecology and the dominance of cyanobacteria in an annual cycle on the eutrophic reservoir Gargalheiras -RN (Brazil). Research on reservoirs started during the 90's in Pernambuco, especially when contaminated water with microcystin was used on the patients under Hemodialisis treatment in Caruaru (Azevedo, 1996, Jochimsen et al, 1998Bittencourt-Oliveira and Molica, 2003).…”

Section: Introductionmentioning

confidence: 99%

Structure of the phytoplankton in a water supply system in the State of Pernambuco - Brazil

Moura

Dantas

Bittencourt‐Oliveira

2007

Braz. arch. biol. technol.

View full text Add to dashboard Cite

show abstract

“…A contribuição das Chlorophyta, em relação aos demais grupos, foi registrada para reservatórios na mesma bacia pelos autores : Chellappa & Costa (2003); Chellappa et al (2007; ;Panosso et al (2007) e Costa et al (2009). A importância dessa divisão em ambientes aquáticos tropicais, sobretudo em ambientes lacustres, tem sido relatada em vários estudos (CALIJURI et al, 2002;FERRAGUT et al, 2005;MOURA et al, 2007;RODRIGUES, TUCCI & SANT' ANNA, 2010;SILVA et al 2011).…”

Section: Resultsunclassified

Análise da presença do fitoplâncton em bacia integrante do Projeto de Integração do Rio São Francisco, região semiárida, Nordeste brasileiro

Cardoso

Marwell²,

Sobral³

et al. 2016

Eng. Sanit. Ambient.

View full text Add to dashboard Cite

RESUMOEstudos taxonômicos do fitoplâncton são importantes ferramentas para advertir a qualidade da água, possibilitando o monitoramento das águas utilizadas para fins múltiplos. Assim, este trabalho visou estudar a composição e a distribuição fitoplanctônica em trechos da Bacia do Rio Piranhas-Açu, na região semiárida do Nordeste brasileiro, de 2010 a 2011, com 13 pontos amostrais, em rios e reservatórios.

show abstract

Dominant and co-existing species of Cyanobacteria from a Eutrophicated reservoir of Rio Grande do Norte State, Brazil

Cited by 71 publications

References 10 publications

Impact of filamentous cyanobacteria on the water quality of two tropical reservoirs

Impact of filamentous cyanobacteria on the water quality of two tropical reservoirs

Structure of the phytoplankton in a water supply system in the State of Pernambuco - Brazil

Análise da presença do fitoplâncton em bacia integrante do Projeto de Integração do Rio São Francisco, região semiárida, Nordeste brasileiro

Contact Info

Product

Resources

About