Phytoplankton composition and abundance of a central Amazonian floodplain lake

Ibañez, Maria do Socorro Rodrigues

doi:10.1023/a:1003124905996

Cited by 45 publications

(36 citation statements)

References 7 publications

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“…In the Danubian floodplains, Riedler (1997) and Tockner et al (1999) found a significant positive relationship between algal biomass and the increasing inundation. However, Garcia de Emiliani (1997), Ibañez (1998), Zalocar de Domitrovic (2003 and Mihaljevic et al (2009) found an inverse relationship between algal biomass and flooding. Moreover, Salmaso and Zignin (2010) stated that the intensity of discharge affected the phytoplankton biomass, and the phytoplankton development was limited by the high flushing rate.…”

Section: Discussionmentioning

confidence: 98%

“…The response of phytoplankton communities to water level fluctuations in floodplain lakes of tropical rivers have been largely investigated (Pedrozo et al 1992, Ibañez 1998, Zalocar de Domitrovic 2003, Nabout et al 2006, Butler et al 2007. Results indicate that phytoplankton dynamics are hydrologically driven, and the flood pulse influences the composition and the population density of phytoplankton communities.…”

Section: Introductionmentioning

confidence: 99%

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Temporal fluctuations of the phytoplankton community in an isolated floodplain lake (North Mollaköy Lake) of the Sakarya River (Northern Turkey)

Sevi̇ndi̇k

Tunca

Önem

et al. 2014

Oceanological and Hydrobiological Studies

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The aim of this study was to determine the spatial and temporal variation of phytoplankton and water quality in response to the hydrological regime in an isolated floodplain lake (North Mollaköy Lake) of the Sakarya River. Variations in the composition, biomass and functional groups of phytoplankton and environmental parameters were monthly analyzed in subsurface samples collected from the pelagic zone at four stations from July 2012 to June 2013. A total of 109 taxa were identified, and the species which contributed the most to the phytoplankton biomass were grouped into 14 functional groups (FGs). The distribution of FGs was linked to the transition (T1 and T2), high (HW) and low (LW) water periods in North Mollaköy Lake. FGs J, MP, N, G, X1, X2, Y, W1, W2, S1, H1, B and C were the contributors to the phytoplankton biomass during the low-water period (LW) and the transition periods (T1 and T2), while Lo contributed the most during the high-water period (HW). RDA revealed that the most important factor affecting the temporal distribution of FGs was the water discharge and that there are

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Temporal fluctuations of the phytoplankton community in an isolated floodplain lake (North Mollaköy Lake) of the Sakarya River (Northern Turkey)

Sevi̇ndi̇k

Tunca

Önem

et al. 2014

Oceanological and Hydrobiological Studies

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“…This has been the case for the Amazon region, where few studies have addressed the phytoplankton community as a whole ( Huszar & Reynolds 1997;Ibañez 1998;Melo & Huszar 2000;Melo et al 2005a;Paiva et al 2006;Aprile & Mera 2007;Monteiro et al 2009;Pereira et al 2010;Almeida & Melo 2011). Most studies conducted in the region have examined specific taxonomic groups, such as desmids (Grönblad 1945;Förster 1963Förster , 1964Förster , 1969Förster , 1974Scott et al 1965;Thomasson 1971;Sophia & Huszar 1996;Lopes & Bicudo 2003;Melo et al 2005b;Souza et al 2007;Souza & Melo 2011) and diatoms (Diaz-Castro et al 2003;Ferrari et al 2007;Pereira et al 2012;Raupp et al 2009;Sala et al 2002;Tudesque et al 2012;Wetzel et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Phytoplankton of two rivers in the eastern Amazon: characterization of biodiversity and new occurrences

Cunha

et al. 2013

Acta Bot. Bras.

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During the various hydrological periods in 2011, we studied the phytoplankton along an 87-km stretch of the Araguari and Falsino rivers, which are located in the eastern Brazilian Amazon, in the state of Amapá, Brazil, the most ecologically preserved state in the country. In the study area, the aquatic ecosystem is under pressure from human activities such as, mining, hydroelectric power generation and urbanization, which contrast with the surrounding areas that are designated for biodiversity conservation. The aim of this study was to characterize the composition, frequency and richness of algae species and also to identify spatial-temporal patterns of taxa distribution. During the study period, we identified 185 taxa (136 species in 49 genera). The division Chlorophyta (class: Zygnematophyceae) presented the greatest number of taxa, whereas the division Rhodophyta accounted for only 1% of the taxa recorded. Most of the species identified (69%) were classified as sporadic in occurrence. The few taxa that were classified as common belonged mainly to the group Bacillariophyta. Species richness was greatest richness in the lentic stretches (in a reservoir) and in November (during the dry season). Of the 185 taxa identified, 174 are new records for the state of Amapá.

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“…When there is a low-water level in the river, the reservoirs are not flooded with water from the river, and this conditions are called limnophase (Neiff 1996). Prolonged periods of hydrological drought cause an increase in the importance and the duration of action factors such as: wind dynamics, chemical potential, allelopathic influence of macrophytes, and shading by vegetation or zooplankton pressure (Ibañez 1998;Nabout et al 2006). During the isolation phase, significant differences can be observed between the planktonic communities of oxbow lakes.…”

Section: Introductionmentioning

confidence: 99%

Seasonal variation in phytoplankton and aquatic plants in floodplain lakes (lower Vistula River, Poland)

Dembowska

2015

Wetlands Ecol Manage

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The study focused on three oxbow lakes which have been isolated from the water of the Vistula River for several years. The diversity of phytoplankton communities was observed biweekly in the growing season (April-October), both in the three floodplain lakes along the lower Vistula River (northern Poland) and in the main current of the river. The water level in the Vistula River remained low, so the lakes were not filled with the surface water of the river. Different phytoplankton communities occurred in the studied lakes compared to the Vistula River. The phytoplankton in the oxbow lakes consisted mainly of small unicellular and colonial flagellates: Cryptomonas, Chlamydomonas, Trachelomonas, and Dinobryon. During the limnophase, only 2-3 species co-dominated, and the reservoirs were in a stable water conditions. The river phytoplankton had both higher diversity and higher abundance compared to the floodplain lakes. In total, 4-8 species co-dominated in the river, usually Chlorococcales and diatoms. The floodplain lakes were characterized by unexpected differences in the quality, quantity, and dynamics of planktonic algae. The differences were strictly associated with the occurrence of macrophytes. During the limnophase, the investigated oxbow lakes were also diversified in terms of colonizing plant communities. Different types of vegetation-free floating plants (W-1 lake), communities of submerged macrophytes, free floating plants and algal mats detached from the bottom (W-2 lake), and submerged macrophytes (Ma lake), affected the development of the microflora to a varying extent.

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Phytoplankton composition and abundance of a central Amazonian floodplain lake

Cited by 45 publications

References 7 publications

Temporal fluctuations of the phytoplankton community in an isolated floodplain lake (North Mollaköy Lake) of the Sakarya River (Northern Turkey)

Temporal fluctuations of the phytoplankton community in an isolated floodplain lake (North Mollaköy Lake) of the Sakarya River (Northern Turkey)

Phytoplankton of two rivers in the eastern Amazon: characterization of biodiversity and new occurrences

Seasonal variation in phytoplankton and aquatic plants in floodplain lakes (lower Vistula River, Poland)

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