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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F11%3A00360225%21RIV12-AV0-60077344
rdf:type
n8:Vysledek skos:Concept
dcterms:description
In order to evaluate the effects of contrasting hydrological scenarios on the spatial and temporal heterogeneity of phytoplankton in a reservoir, vertical chlorophyll and temperature profiles were measured and functional classification of phytoplankton was applied. From April to October 2007, at 1–2 week intervals, seasonal changes in various parameters were studied along the longitudinal axis of the canyon-shaped, eutrophic Římov Reservoir (Czech Republic). At the river inflow, phytoplankton markedly differed from the rest of the reservoir, being dominated by functional groups D and J (pinnate diatoms and chlorococcal algae) without a clear seasonal pattern. From April to mid-June, groups Y and P (large cryptophytes and colonial diatoms) prevailed in the whole reservoir. Phytoplankton spatial heterogeneity was the most apparent during the summer reflecting a pronounced gradient of environmental parameters from the river inflow to the dam (e.g., decreasing nutrients, increasing light availability, etc.). A dense cyanobacterial bloom (groups H1 and M) developed in the nutrient-rich transition zone, while functional Group N (desmids) dominated the phytoplankton at the same time at the dam area. In late summer, a sudden flood event considerably disrupted thermal stratification, altered nutrient and light availability, and later even resulted in cyanobacterial dominance in the whole reservoir. Additionally, our study emphasizes the importance of having an intensive phytoplankton monitoring program, which would allow for detecting severe consequences of sudden flood events on phytoplankton spatial and temporal heterogeneity, which significantly affect water quality at the dam area used for drinking water purposes. In order to evaluate the effects of contrasting hydrological scenarios on the spatial and temporal heterogeneity of phytoplankton in a reservoir, vertical chlorophyll and temperature profiles were measured and functional classification of phytoplankton was applied. From April to October 2007, at 1–2 week intervals, seasonal changes in various parameters were studied along the longitudinal axis of the canyon-shaped, eutrophic Římov Reservoir (Czech Republic). At the river inflow, phytoplankton markedly differed from the rest of the reservoir, being dominated by functional groups D and J (pinnate diatoms and chlorococcal algae) without a clear seasonal pattern. From April to mid-June, groups Y and P (large cryptophytes and colonial diatoms) prevailed in the whole reservoir. Phytoplankton spatial heterogeneity was the most apparent during the summer reflecting a pronounced gradient of environmental parameters from the river inflow to the dam (e.g., decreasing nutrients, increasing light availability, etc.). A dense cyanobacterial bloom (groups H1 and M) developed in the nutrient-rich transition zone, while functional Group N (desmids) dominated the phytoplankton at the same time at the dam area. In late summer, a sudden flood event considerably disrupted thermal stratification, altered nutrient and light availability, and later even resulted in cyanobacterial dominance in the whole reservoir. Additionally, our study emphasizes the importance of having an intensive phytoplankton monitoring program, which would allow for detecting severe consequences of sudden flood events on phytoplankton spatial and temporal heterogeneity, which significantly affect water quality at the dam area used for drinking water purposes.
dcterms:title
Spatial heterogeneity and seasonal succession of phytoplankton along the longitudinal gradient in a eutrophic reservoir Spatial heterogeneity and seasonal succession of phytoplankton along the longitudinal gradient in a eutrophic reservoir
skos:prefLabel
Spatial heterogeneity and seasonal succession of phytoplankton along the longitudinal gradient in a eutrophic reservoir Spatial heterogeneity and seasonal succession of phytoplankton along the longitudinal gradient in a eutrophic reservoir
skos:notation
RIV/60077344:_____/11:00360225!RIV12-AV0-60077344
n8:predkladatel
n9:ico%3A60077344
n3:aktivita
n4:P n4:V n4:Z
n3:aktivity
P(GA206/08/0015), P(GP206/07/P407), V, Z(AV0Z60170517)
n3:cisloPeriodika
1
n3:dodaniDat
n16:2012
n3:domaciTvurceVysledku
n12:7551452 n12:9497129
n3:druhVysledku
n20:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
231186
n3:idVysledku
RIV/60077344:_____/11:00360225
n3:jazykVysledku
n19:eng
n3:klicovaSlova
phytoplankton; reservoir; spatial heterogeneity; seasonal succession; functional classification; f lood event
n3:klicoveSlovo
n6:f%20lood%20event n6:phytoplankton n6:reservoir n6:functional%20classification n6:seasonal%20succession n6:spatial%20heterogeneity
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[1C18C57BE853]
n3:nazevZdroje
Hydrobiologia
n3:obor
n5:DA
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n10:GA206%2F08%2F0015 n10:GP206%2F07%2FP407
n3:rokUplatneniVysledku
n16:2011
n3:svazekPeriodika
663
n3:tvurceVysledku
Rychtecký, Pavel Znachor, Petr
n3:wos
000286393300012
n3:zamer
n14:AV0Z60170517
s:issn
0018-8158
s:numberOfPages
12
n17:doi
10.1007/s10750-010-0571-6