Estrutura da assembléia de microcrustáceos (Cladocera e Copepoda) em um reservatório do semi-árido Neotropical, Barragem de Pedra, Estado da Bahia, Brasil

Simões, Nadson Ressyé; Sonoda, Sérgio Luiz

doi:10.4025/actascibiolsci.v31i1.538

Cited by 10 publications

(7 citation statements)

References 3 publications

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“…It was also shown to be higher than what was found by Zanatta et al (2010), who found rates below 1.85. However, it is still lower than most values registered by Guntzel et al (2010) and Simões & Sonoda (2009). It is worth noting that the work of Zanatta et al (2010) and Simões & Sonoda (2009) are related to samplings in the limnetic zone.…”

Section: Discussionmentioning

confidence: 66%

Composition and diversity of phytophilous cladocerans of oxbow lakes of Southwest Amazonian, Acre state, Brazil

et al. 2021

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The objective of this study was to inventory the community of cladocerans associated with macrophytes in oxbow lakes of the Chandless River, located within the Chandless State Park, during the local dry season. In three lakes covered with macrophytes, 90 sample units were collected, arranged over nine transects. Twenty species of cladocerans were found, which 16 are new records for the state of Acre. Mascote Lake had the largest abundance and richness, while São João Lake had the lowest indexes. The Shannon-Wiener index points to an average diversity within the work area, probably due to the difference in richness and abundance between the lakes.

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Section: Discussionmentioning

confidence: 66%

Composition and diversity of phytophilous cladocerans of oxbow lakes of Southwest Amazonian, Acre state, Brazil

et al. 2021

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“…Rainfall promotes particle entrainment into the reservoir, increasing levels of solids in the suspension, causing an increase in turbidity and reduced light penetration and primary production (Baxter, 1977), while in the drought the evaporation promotes ions concentration. Limnological variables differed significantly between the sampling months, such as recorded in other studies performed in semiarid regions (Leitão et al, 2006;Sousa et al, 2008;Simões & Sonoda, 2009).…”

Section: Cladoceramentioning

confidence: 58%

Spatial distribution and temporal variation of microcrustaceans assembly (Cladocera and Copepoda) in different compartments of a reservoir in the brazilian semiarid region

2018

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Aim: The objective of this study was to investigate the spatial and temporal variation of microcrustacean assemblages of a reservoir in the Brazilian semiarid region. Methods Physical and chemical water variables and samples of microcrustaceans were collected at eight sites of the reservoir between July 2013 and November 2014, in a total of seven campaigns. For this study, the reservoir was categorized in two compartments: lateral and central. Results Limnological variables showed significant temporal variation (PERMANOVA, Pseudo-F = 19.51, p = 0.001). Higher turbidity values and suspended solids were observed in the rainiest months, while during the dry months, we measured higher values of transparency, dissolved oxygen, and chlorophyll-a. It was not found significant spatial variation of limnological variables (PERMANOVA, Pseudo-F = 0.96; p = 0.394). During the study period, ten species were recorded: four Cladocera (Ceriodaphnia cornuta, Daphnia gessneri, Diaphanosoma birgei and Diaphanosoma spinulosum ) three Copepoda Calanoida (Argyrodiaptomus azevedoi, Notodiaptomus cearensis and Notodiaptomus iheringi) and three Copepoda Cyclopoida (Macrocyclops albidus, Thermocyclops minutus and Thermocyclops decipiens). The microcrustacean assemblages showed significant temporal variation (PERMANOVA, Pseudo-F = 4.34; p = 0.001) as well as significant spatial variation (PERMANOVA, Pseudo-F = 9.46; p = 0.001). The highest values of abundance and richness were observed in the lateral compartment, this result is mainly related to the presence of aquatic macrophytes in this region, because the analysis of partial RDA indicated that limnological variables explained only 11% of this variation (Pseudo-F = 2.08, p = 0.001). Conclusions The results suggest that the seasonality of the semiarid is an important factor in the temporal dynamics of the limnological variables, while the aquatic macrophytes play an important role in the spatial distribution of the microcrustacean assembly.

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“…Also, small systems are more susceptible to climate changes (STRAILE et al, 2003). For example, Chapman et al (1998), working on a small protected Ugandan crater lake (Lake Nkuruba), concluded that the system responds rapidly to short-term meteorological changes, and the annual heat exchange cycle was confined to upper waters.…”

Section: Discussionmentioning

confidence: 99%

“…In order to formulate a typology for lakes and reservoirs, the interaction of climate, (variation in air temperature, and rainfall) and geographical location (latitude, and altitude) with lake characteristics (morphology, and size), must be carefully considered (STRAILE et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

Spatial and temporal variation of Dona Francisca reservoir (Jacuí river, Rio Grande do Sul State), a subtropical reservoir

Rodrigues

Schwarzbold

Oliveira

2012

Acta Sci. Biol. Sci.

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ABSTRACT. The present study examined the behavior of a reservoir located on subtropical latitude (Dona Francisca reservoir). The limnological variables measured were dissolved oxygen, temperature, pH and electric conductivity. Measurements were taken quarterly at different sampling sites along the reservoir. The results indicated the formation of longitudinal zones regarding circulation patterns and stratification, beyond the influence from the water masses of the main tributary. The vertical profiles were obtained. The behavior of the reservoir is similar to others previously studied in the country, but with shorter time-lag stratification and a narrower range, possibly due to the shorter residence time of the water, and to the latitude, where summer is shorter.Keywords: subtropical reservoir, thermal stratification, compartmentalization, thermocline.Variação temporal e espacial do reservatório Dona Francisca (rio Jacuí, Estado do Rio Grande do Sul), um reservatório subtropical RESUMO. O estudo buscou analisar o comportamento das variáveis limnológicas, dentre elas oxigênio dissolvido, temperatura, pH e condutividade elétrica, em um reservatório de latitude subtropical (reservatório Dona Francisca). Medidas trimestrais foram feitas em diferentes locais do reservatório, onde foram obtidos os perfis de profundidade. Os resultados indicaram a formação de zonas longitudinais a partir dos padrões de circulação e estratificação, além da influência exercida pelas massas de água do afluente principal. Conclui-se que o comportamento do reservatório se assemelha a outros no país, mas com intervalo de tempo de estratificação menos prolongado e amplitudes menos acentuadas, em parte, possivelmente, pelo pequeno tempo de residência da água e sua posição latitudinal, quando o verão é mais curto.Palavras-chave: reservatório subtropical, estratificação de reservatório, compartimentalização, termoclima.

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Estrutura da assembléia de microcrustáceos (Cladocera e Copepoda) em um reservatório do semi-árido Neotropical, Barragem de Pedra, Estado da Bahia, Brasil

Cited by 10 publications

References 3 publications

Composition and diversity of phytophilous cladocerans of oxbow lakes of Southwest Amazonian, Acre state, Brazil

Composition and diversity of phytophilous cladocerans of oxbow lakes of Southwest Amazonian, Acre state, Brazil

Spatial distribution and temporal variation of microcrustaceans assembly (Cladocera and Copepoda) in different compartments of a reservoir in the brazilian semiarid region

Spatial and temporal variation of Dona Francisca reservoir (Jacuí river, Rio Grande do Sul State), a subtropical reservoir

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