Influência da variação do nível hidrométrico na comunidade fitoplanctônica do Rio Paranapanema e de uma lagoa marginal na zona de desembocadura na Represa de Jurumirim (SP)

Granado, Danielli Cristina; Henry, Raoul; Tucci, Andréa

doi:10.1590/s2236-89062009000100006

Cited by 9 publications

(9 citation statements)

References 25 publications

(31 reference statements)

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“…Except in Cavalos Lake, whose taxa richness was higher, the number of algae species in the other lentic environments was similar in the hydrologic period without disconnection from the river (Figure 4). In the three lacustrine environments, only one alga species (Cryptomonas brasiliensis) was constant, while in the Paranapanema River, this species and Closteriopsis acicularis were present in all the samples (Granado et al 2009). Closteriopsis acicularis and Cryptomonas brasiliensis were dominant algae species in the Paranapanema River in April 2004 and in the other sampling periods.…”

Section: Situationmentioning

confidence: 87%

Plankton Richness and Abundance in Several Different Hydrological Situations in Lakes Lateral to a River: A Case Study in the Mouth Zone of a Tributary into a Tropical Reservoir

Henry

Panarelli

Casanova³

et al. 2011

Oecol Aust

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A descriptive analysis of the responses of plankton from lakes lateral to a river in its mouth zone into a tropical reservoir to water level variations is presented. Three situations were reported: 1) a comparison of species richness and diversity and of algae population abundance in prolonged drought and in periods of connection of lakes to the river, 2) the spatial distribution of abundance and richness of Rotifera species in four isolated water bodies formed by fragmentation of a lateral lake during a period of prolonged drought and in the same areas during a period of integrity as an ecosystem, 3) the variability of total zooplankton and Cladocera densities at the end of the isolation period of a lateral lake and after the recovery of connection with the river and in a year of continuous connection with the lotic ecosystem. Various idiosyncrasies were observed in connected lateral lakes, like the surface hydrologic connectivity, a primary factor in species richness modifications and a secondary controlling factor of plankton abundance. Underground hydrologic connectivity, through the river → lake water flux during the high-water period and lake → river during drought period, appears to have an important role in richness and abundance variations of planktonic populations in the lake isolated from the river.

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Section: Situationmentioning

confidence: 87%

Plankton Richness and Abundance in Several Different Hydrological Situations in Lakes Lateral to a River: A Case Study in the Mouth Zone of a Tributary into a Tropical Reservoir

Henry

Panarelli

Casanova³

et al. 2011

Oecol Aust

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“…Dos 38 táxons identifi cados, 19 táxons apresentaram frequência de corrência entre 30-55% entre os pesqueiros estudados, os quais, por sua vez, são provenientes de diferentes bacias hidrográfi cas (Rossini 2010). Resultados que indicam que as espécies de Chlorophyceae são amplamente distribuídas em diferentes sistemas aquáticos brasileiros, desde reservatórios a lagos rasos e urbanos, eutrófi cos a oligotrófi cos, foram registrados em Sant'Anna et al (1989, 1997, Beyruth et al (1998), Bicudo et al (1999), Calijuri (1999, Henry & Nogueira (1999), Nogueira (1999), Beyruth (2000, Huszar et al (2000), Carvalho (2003), Tucci et al (2004Tucci et al ( , 2006, Ferragut et al (2005), Gentil (2007), Gentil et al (2008), Nogueira et al (2008), Rodrigues (2008), Granado et al (2009), e Rosini (2010.…”

Section: Eutetramorus Walton 1918unclassified

“…Exemplos desta porcentagem foram registrados por Sant' Anna et al (1989Anna et al ( , 1997Anna et al ( , 2006, Beyruth et al (1998), Bicudo et al (1999), Beyruth (2000), Huszar et al (2000), Carvalho (2003), Tucci et al (2004Tucci et al ( , 2006, Ferragut et al (2005), Gentil et al (2008), Nogueira et al (2008), Rodrigues (2008), Granado et al (2009), em sistemas aquáticos com diferentes condições ambientais e graus de trofi a, indicando que, de maneira geral, as Chlorophyceae estão amplamente distribuídas nas águas continentais brasileiras.…”

unclassified

Chlorococcales (exceto Scenedesmaceae) de pesqueiros da Região Metropolitana de São Paulo, SP, Brasil: levantamento florístico

Rosini¹,

Sant’Anna

Tucci

2012

Hoehnea

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-(Chlorococcales (except Scenedesmaceae) from fi shing ponds in the Metropolitan Region of São Paulo, São Paulo State, Brazil: a fl oristic survey). Studies in fi shing ponds have mainly focused on economic issues and environmental impacts, while studies on the fl ora of micro algae are rarely performed. Therefore, the objective of this study was to perform a survey of the Chlorococcales from ten fi shing ponds located in the Metropolitan Region of São Paulo. We identifi ed 38 taxa, distributed in eight families, 19 genera and four varieties that are not typical of the species. With the exception of Scenedesmaceae, Chlorellaceae and Coelastraceae had the greatest number of taxa, 10 and eight species respectively, while Micractiniaceae, Radiococcaceae and Treubariaceae had the lowest numbers of taxa and frequencies of occurrence. Dictyosphaerium pulchellum was the only species with 90% frequency of occurrence. Out of the 38 taxa identifi ed, 19 had a frequency of occurrence between 30-55%, indicating a greater distribution of these species among the studied fi shing ponds, corroborating the information in the literature, which argue that the Chlorococcales, Chlorophyceae species are well distributed in different Brazilians aquatic systems. The Scenedesmaceae family will be addressed separately due to its high wealth of taxa. Key words: biodiversity, Dictyosphaerium, taxonomic RESUMO -(Chlorococcales (exceto Scenedesmaceae) de pesqueiros da Região Metropolitana de São Paulo, SP, Brasil: levantamento fl orístico). Estudos em pesqueiros ressaltam, principalmente, questões econômicas e de impactos ambientais, enquanto que, estudos sobre a fl ora de microalgas raramente são realizados. Assim, o objetivo deste estudo foi realizar o levantamento das Chlorococcales em dez pesqueiros da Região Metropolitana de São Paulo. Foram identifi cados 38 táxons, distribuídos em oito famílias, 19 gêneros e quatro variedades que não as típicas das espécies. Com exceção de Scenedesmaceae, Chlorellaceae e Coelastraceae apresentaram maior riqueza, 10 e oito espécies respectivamente, enquanto que, Micractiniaceae, Radiococcaceae e Treubariaceae apresentaram as menores riquezas e as menores frequências de ocorrência. Dictyosphaerium pulchellum foi a única espécie com 90% de frequência de ocorrência. Dos 38 táxons identifi cados, 19 apresentaram frequência de ocorrência entre 30-55%, indicando melhor distribuição dessas espécies entre os pesqueiros estudados, corroborando com as informações da literatura, que discutem que várias espécies de Chlorococcales, Chlorophyceae são bem distribuídas entre os diferentes sistemas aquáticos brasileiros. A família Scenedesmaceae, pela elevada riqueza de táxons, será abordada separadamente.

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“…In this disturbed environment, phytoplankton may remain in a successional stage, dominated by small and fast-growing species such as cryptophyceans and diatoms, some of them resuspended from the bottom (Henry et al, 2006;Granado et al, 2009). Detritus and sediment resuspended by the daily circulation, in addition to the small amounts contributed by the river, decrease light penetration, benefiting some planktonic groups such as cryptophyceans (Henry et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Effects of temperature, sestonic algae features, and seston mineral content on cladocerans of a tropical lake

Fileto

Arcifa

Henry

et al. 2010

Ann. Limnol. - Int. J. Lim.

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-The effects of temperature on the life table, and of seston quality on the individual growth and reproduction of cladocerans from a tropical lake were tested in the laboratory. Life-table experiments were carried out at 17 xC, 23 xC, and 27 xC. Growth bioassays tested the influence of natural seston fractions, separated by net filtration, on cladocerans. The treatments were: (1) total seston plus Scenedesmus spinosus (1 mg C.L x1 ), (2) seston j 36 mm, and (3) seston > 36 mm. Phytoplankton composition, density, and biomass were evaluated during growth experiments, together with sestonic carbon, nitrogen, and phosphorus concentrations. The intrinsic rates of natural increase were higher for Moina micrura and Daphnia ambigua at 27 xC compared to 17 xC. The age at first reproduction of both species was delayed at 17 xC. Growth rates and fecundity of M. micrura were higher in the seston fraction j 36 mm than in the fraction > 36 mm. Higher growth rates and fecundity of Moina minuta were observed in the seston enriched with the green alga in comparison to the seston j 36 mm and > 36 mm. Bosmina longirostris was unable to reproduce at 17 xC and to grow in the seston > 36 mm in one experiment. High densities and/or biomass of large colonial and filamentous algae present in the larger seston fraction could have contributed to reduce growth and reproduction. Episodes of food-quantity limitation may occur, but there was no evidence of mineral limitation, although seston C : P and C : N ratios were always above the limiting values assumed for temperate water bodies. The C : P and C : N ratios are highly influenced by carbon that originates primarily from resuspended detritus from the lake.

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Influência da variação do nível hidrométrico na comunidade fitoplanctônica do Rio Paranapanema e de uma lagoa marginal na zona de desembocadura na Represa de Jurumirim (SP)

Cited by 9 publications

References 25 publications

Plankton Richness and Abundance in Several Different Hydrological Situations in Lakes Lateral to a River: A Case Study in the Mouth Zone of a Tributary into a Tropical Reservoir

Plankton Richness and Abundance in Several Different Hydrological Situations in Lakes Lateral to a River: A Case Study in the Mouth Zone of a Tributary into a Tropical Reservoir

Chlorococcales (exceto Scenedesmaceae) de pesqueiros da Região Metropolitana de São Paulo, SP, Brasil: levantamento florístico

Effects of temperature, sestonic algae features, and seston mineral content on cladocerans of a tropical lake

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