Paleolimnologically inferred eutrophication of a shallow, tropical, urban reservoir in southeast Brazil

Costa-Böddeker, Sandra; Bennion, H; Jesus, Tatiane Araújo de; Albuquerque, Ana Luíza Spadano; Figueira, Rubens César Lopes; Bicudo, Denise C.

doi:10.1007/s10933-012-9642-1

Cited by 59 publications

(38 citation statements)

References 43 publications

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“…Trata-se de espécie com ampla distribuição no Brasil, especialmente nas regiões Sul (Oliveira et al 2001 e Sudeste do país (Eskinazi-Leça et al 2012). No Estado de São Paulo foi reportada em estudo paleolimnológico de represa urbana (Costa-Böddeker et al 2012). Para a área de estudo, trata-se da primeira ocorrência, onde se distribuiu apenas no Reservatório de Rosana, ocorrendo em 14% das estações de amostragem (tabela 1).…”

Section: Figuraunclassified

“…As demais contribuições sobre diatomáceas de reservatórios no Brasil contemplaram a flora de diatomáceas de uma dada represa ou tributário em uma série de reservatórios em cascata (Bicudo et al 1993, Bittencourt-Oliveira 2002), a ecologia de diferentes comunidades de algas, incluindo diatomáceas (Nogueira 2000, BittencourtOliveira 2002, Silva et al 2005, Nogueira et al 2010, listagens ou apenas citações de espécies em trabalhos eminentemente ecológicos (Nogueira 2000, Felisberto & Rodrigues 2005, Silva et al 2005, Henry et al 2006, Nogueira et al 2010. Dada a importância do compartimento sedimentar como acumulador de informações espaço-temporais, existem poucos estudos, sendo a quase totalidade deles com enfoque paleolimnológico e realizados em ecossistemas lênticos do país (e.g., Moro & Bicudo 1998, Moro et al 2004, Souza et al 2007, Costa-Böddeker et al 2012.…”

Section: Introductionunclassified

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Biodiversidade e distribuição das diatomáceas (Bacillariophyceae) de sedimentos superficiais nos reservatórios em cascata do rio Paranapanema, SP/PR, Brasil

Fontana

Bicudo

2012

Hoehnea

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-(Biodiversity and distribution of diatoms (Bacillariophyceae) from surface sediments in the cascading reservoirs of Paranapanema river, São Paulo and Paraná States, Brazil). Paper presents the taxonomic survey and distribution of diatoms (class Bacillariophyceae) from the surface sediments of five cascading reservoirs of the Paranapanema river. Samples were dredged from three sampling stations (upstream, middle portion, and close to the dam) of reservoirs. 44 taxa belonging to 22 genera were identified, 23 (52.3%) of which represent new records for the Paranapanema river basin, four (9.1%) for the São Paulo State, and two (4.5%) for the Paraná State. Morphometric data, relevant comments, and local spatial distribution of species in the São Paulo and Paraná States are available. Taxonomic richness was markedly greater in the first reservoir (Jurumirim) and in the sampling station with influence of the Tibagi river. Present work is a pioneer contribution to the country in regard to biodiversity and spatial distribution of diatoms in cascade reservoirs, contributing for future studies on conservation and monitoring of the Paranapanema river basin. Key words: algae, cascade reservoirs, flora, sediment RESUMO -(Biodiversidade e distribuição das diatomáceas (Bacillariophyceae) de sedimentos superficiais nos reservatórios em cascata do rio Paranapanema, SP/PR, Brasil. O trabalho apresenta os resultados do inventário e da distribuição das diatomáceas da classe Bacillariophyceae de sedimentos superficiais de cinco reservatórios em cascata do rio Paranapanema. Amostras foram coletadas com draga em três locais (montante, região intermediária e lacustre) dos reservatórios. Foram identificados 44 táxons infragenéricos, sendo 23 (52,3%) novas citações para a bacia do rio Paranapanema, quatro (9,1%) para o Estado de São Paulo e duas (4,5%) para o Estado do Paraná. São disponibilizados dados morfométricos, comentários relevantes, distribuição espacial e local de ocorrência das espécies para os Estados de São Paulo e Paraná. A riqueza de espécie foi nitidamente mais elevada no primeiro reservatório da série (Jurumirim) e na estação com influência do rio Tibagi. Este trabalho traz contribuição pioneira para o país no que se refere à biodiversidade e distribuição espacial das diatomáceas em reservatórios em cascata, podendo subsidiar futuros estudos sobre conservação e monitoramento na bacia hidrográfica do rio Paranapanema. Palavras-chave: algas, flora, represas em cascata, sedimentos IntroduçãoOs sedimentos superficiais acumulam os eventos que ocorreram na bacia de drenagem ao longo de um passado recente, fornecendo uma amostra rica em informações sobre a biodiversidade, uma vez que integra diferentes hábitats (plâncton, perifíton, bentos) ao longo do tempo e inviável de ser obtida a partir de amostras vivas (Bennion 1995). Dessa forma, o estudo das diatomáceas acumuladas no sedimento contribui de forma mais abrangente para o conhecimento da biodiversidade dos ecossistemas aquáticos, podendo subsidiar estudos sobre co...

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Section: Figuraunclassified

Section: Introductionunclassified

Biodiversidade e distribuição das diatomáceas (Bacillariophyceae) de sedimentos superficiais nos reservatórios em cascata do rio Paranapanema, SP/PR, Brasil

Fontana

Bicudo

2012

Hoehnea

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“…Estes incluem apenas as citações e só eventualmente se fizeram acompanhar de ilustração e/ou medidas dos materiais identificados (ex. Marinho 1994, Vercellino 2001, Fermino 2006, Costa 2008, Ferrari 2010, Borduqui & Ferragut 2012, Costa-Böddeker et al 2012, Pellegrini & Ferragut 2012.…”

Section: Introductionunclassified

Criptógamos do Parque Estadual das Fontes do Ipiranga, São Paulo, SP. Algas 36: Bacillariophyceae (Cymbellales)

Marquardt

Bicudo

2014

Hoehnea

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-(Cryptogams of the Parque Estadual das Fontes do Ipiranga, São Paulo, SP. Algae 36: Bacillariophyceae (Cymbellales)).The floristic survey of Cymbellales order (Bacillariophyceae) from the Parque Estadual das Fontes do Ipiranga (PEFI), São Paulo State, Brazil, is presented based on the analysis of 28 sampling units. Plankton samples were gathered with a plankton net and periphyton samples through collection and removal of diatoms attached to the stems of submerged plants. The samples were oxidized and analyzed under a light and a scanning electron microscope. Six genera and a total of 36 taxa were identified. Morphological characteristics and dimensions of the frustules were provided for all recorded taxa.Among the species identified, the following 13 are new records for the PEFI:

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“…These fluctuations have the potential to disrupt the sediment record (Shotbolt et al 2001) by resuspending and transporting sediment previously deposited in the reservoir (Effler and Matthews 2004) in addition to transporting sediment into the reservoir from the catchment. Despite these concerns, paleolimnological techniques have been successfully used in reservoirs to: determine changes in diatom communities since construction (Donar et al 1996); to provide information on historic water quality changes (Dixit et al 1999, Tremblay et al 2001, Costa-Boddeker et al 2012, Fontana et al 2014, Winston et al 2014; and to identify historic changes in hydrodynamics (Tibby 2001, Liu et al 2012). The application of paleolimnological techniques in reservoirs requires further investigation, especially in subtropical climates, as these reservoirs are subject to large episodic rainfall events and significant fluctuations in water level due to major catchment inflows.…”

Section: Introductionmentioning

confidence: 99%

“…The abundance of individual diatom taxa in aquatic systems can be influenced by several factors including light and nutrient availability, conductivity (Reed 1998, Yang et al 2003, Stevenson et al 2008, catchment land use Bailey 2001a, Bere andTundisi 2011) and hydrodynamics (Wang et al 2009). Both benthic and planktonic diatoms can be found in the sediment record, with paleolimnological studies using diatoms to provide insight into historic water quality conditions of reservoirs (Bradbury and Van Metre 1997, Tibby 2004, Costa-Boddeker et al 2012). …”

Section: Introductionmentioning

confidence: 99%

Diatoms as indicators of ecological change in freshwater reservoirs of South East Queensland

Gale¹

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Diatoms are powerful bioindicators, as each species has a specific tolerance for environmental variables, they are abundant in aquatic ecosystems and they respond rapidly to change. The use of diatoms as bioindicators is widespread especially in streams, rivers and natural lakes and is increasing in reservoirs. Typically, diatoms utilised in streams and rivers for biomonitoring consist of living benthic communities attached to rocks, while in lakes and reservoirs diatoms collected from the sediments consist of senescent planktonic diatom that have settled out of the water column. The development of diatoms as indicators in reservoirs can be problematic due to the complex hydrology and higher rates of sedimentation associated with these systems. Despite these challenges the use of diatoms in reservoir environments to develop transfer functions to infer historical changes in water quality is increasing. The development of regional datasets is important, as using indicators or transfer functions that have been developed in other areas to quantify changes in water quality does not provide accurate results.The aim of this thesis was to develop diatoms as bioindicators of water quality in freshwater reservoirs of subtropical south east Queensland (SEQ), to complement the traditional water quality monitoring across different sites. This will provide understanding of environmental drivers of diatom assemblages in this region. The diatom assemblages of reservoirs in this region have not been investigated to date and this study will provide the first investigation into their biological diversity and the water quality histories of the reservoirs.This study was undertaken in drinking water reservoirs of subtropical south east Queensland, Australia. Spatial variability of the sediment surface diatom assemblage was investigated in the Lake Wivenhoe, the largest reservoir of the region which supplies over two million people with drinking water. The diatom assemblage of surface sediments was found to vary spatially within a reservoir and aligned with zonation that is typical of reservoir environment, lacustrine, transition and riverine. Three groups of diatoms characterised the reservoir, taxa reported as cosmopolitan were found throughout, higher abundances of planktonic taxa were observed in the lacustrine zone and benthic taxa were reported in the riverine zone. i Sediment samples were collected from 15 reservoirs in south east Queensland. The diatom assemblage and corresponding water quality parameters from each site were used to develop transfer functions specific for the region. Robust models were developed using weighted averaging partial least squares for conductivity and total phosphorus. The optimum and tolerances of these parameters are reported for 116 diatom taxa.Early in 2011, the largest rainfall on record took place in the Wivenhoe dam catchment which resulted in an extreme inflow into the reservoir. One core had been taken in October 2010 to determine historic changes in the diatom assemblage. Following...

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Paleolimnologically inferred eutrophication of a shallow, tropical, urban reservoir in southeast Brazil

Cited by 59 publications

References 43 publications

Biodiversidade e distribuição das diatomáceas (Bacillariophyceae) de sedimentos superficiais nos reservatórios em cascata do rio Paranapanema, SP/PR, Brasil

Biodiversidade e distribuição das diatomáceas (Bacillariophyceae) de sedimentos superficiais nos reservatórios em cascata do rio Paranapanema, SP/PR, Brasil

Criptógamos do Parque Estadual das Fontes do Ipiranga, São Paulo, SP. Algas 36: Bacillariophyceae (Cymbellales)

Diatoms as indicators of ecological change in freshwater reservoirs of South East Queensland

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