Diatoms as indicators of lake eutrophication

Hall, Roland I.; Smol, John P.

doi:10.1017/cbo9780511613005.007

Cited by 179 publications

(116 citation statements)

References 195 publications

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“…Lakes/ponds accumulate vast amounts of ecological and chemical information in their sediments, which can be used to reconstruct past changes in lake ecosystems (Hall & smol 2001(Hall & smol , poulíčková et al 2008c. As speciesspecific responses to environmental changes occur, particularly diatoms/desmids are useful bioindicators in the study of anthropogenically mediated environmental change (coesel 1998(coesel , 2003(coesel , Hall & smol 2001.…”

Section: Occurrence Of Other Algae/organismsmentioning

confidence: 99%

Epipelic cyanobacteria and algae: a case study from Czech ponds.

Hašler¹,

Štěpánková²,

Špačková³

et al. 2008

Fottea

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Abstract:The present paper focuses on the epipelic cyanobacteria and algae (particularly desmids). Altogether 45 sediment samples were taken at ponds covering a pH/conductivity and trophic gradients. Statistic evaluation based on environmental variables measured, divided localities into four major groups differing also by sediment quality and its algal flora. Altogether 39 cyanobacterial species were found including sedimented planktic or litoral forms, with prevalence of motile filamentous genera (Komvophoron, Oscillatoria, Phormidium, Pseudanabaena). Although, the majority of 42 desmid taxa belongs to commonly occurring species with a wide ecological amplitude, several remarkable taxa occurred mostly at oligo/dystrophic sites with sandy sediments. The highest species richness of euglenophytes was found on the muddy sediments (both oxygenated and anoxic). Other epipelic organisms were represented by Gymnodinium aeruginosum, Paulinella chromatophora and various protozoa, feeding on epipelic algae (Amoeba, Urceolus cyclostomus).

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Section: Occurrence Of Other Algae/organismsmentioning

confidence: 99%

Epipelic cyanobacteria and algae: a case study from Czech ponds.

Hašler¹,

Štěpánková²,

Špačková³

et al. 2008

Fottea

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“…Diatom assemblages are since long time used as indicators for historical changes in the trophic state of lakes (see Hall & Smol, 1999, for a review) and there are several case studies available from various regions in Europe that demonstrate lake eutrophication and restoration trends over the past 120 years (e.g. Lotter, 1998).…”

Section: Past Changes In Trophic Statementioning

confidence: 99%

The palaeolimnological potential of diatom assemblages in floodplain lakes of the Danube Delta, Romania: a pilot study

et al. 2004

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Within the framework of a palaeolimnological pilot study, the potential of sedimentary diatom assemblages for the reconstruction of the eutrophication history was studied in short sediment cores from five shallow lakes located in the Romanian Danube Delta. A total of 234 diatom taxa representing 57 genera could be identified but diatom assemblages are generally predominated by a few species only. Loss on ignition percentages, total diatom abundances and diatom downcore successions largely vary within the single sediment cores and between all five lakes. This suggests the presence of various lake environments within the Danube Delta, each characterized by lakespecific geomorphological, sedimentological, hydrological, and biological conditions. Highly variable depositional conditions are also confirmed by radiocesium measurements in two of the five cores suggesting distinct inter-lake differences in the sedimentation rate. Causes for the great intra-lake and inter-lake variability in diatom downcore successions are difficult to specify and may include changes in the physico-chemical conditions, aquatic vegetation cover, water depth, river influence, turbidity and inter-biotic interactions. However, based on this pilot study, it is likely that the spatial and temporal distribution of sedimentary diatom assemblages in Danube Delta lakes were not triggered by the trophic state. The delta lakes likely became meso-to eutrophic long before 1950, possibly during late-Holocene times.

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“…Fossil remains of a range of organisms are preserved in the sediment record and several organism groups are known to be sensitive bioindicators that can be used to reconstruct past environmental conditions. Diatoms are one of the few algal groups that preserve well in lake sediments and have been extensively used in palaeolimnology to track changes in water quality related to changes in pH or total phosphorus (Hall and Smol 1999;Battarbee et al 2001). Conventional palaeolimnological studies tend to concentrate on millennial, centennial, or decadal-scale variability of aquatic ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Climate-driven shifts in diatom assemblages recorded in annually laminated sediments of Sacrower See (NE Germany)

et al. 2010

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Sacrower See is a eutrophic lake with annually laminated sediments extending back to A.D. 1868. Analysis of annual layers revealed multi-decadal periods of distinct diatom assemblages at A.D. 1868-1875, 1876-1940, 1941-1978, and 1979-2000. Detrended correspondence analysis performed on individual seasonal sediment layers showed decadal-scale patterns of turnover in the diatom flora. The spring-summer layers showed higher sample scores until the early 1960s, after which the differences with the autumn-winter layers became smaller. Rates-of-change analysis revealed that the seasonal variability in diatom assemblages was higher than the annual changes. Summer diatom rates of change over the period A.D. 1894-1960 was on average higher than for winter, whereas between the 1960s and 1970s the winter rates of change became higher than the summer ones. Redundancy Analyses showed that seasonal temperatures and wind strength were significant explanatory variables for diatom assemblages in both annual and seasonal layers. These results suggest that meteorological changes indirectly affected diatom assemblages via the mixing regime of the lake. A comparison of the diatom rates of change with the amplitude of inter-annual climate change shows a statistically significant correlation for the spring-summer layers in the period of A.D. 1963-2000, showing that the sensitivity of diatom assemblages to meteorological changes has varied over the past century, with a stronger effect on diatoms registered during the past 40 years.

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Diatoms as indicators of lake eutrophication

Cited by 179 publications

References 195 publications

Epipelic cyanobacteria and algae: a case study from Czech ponds.

Epipelic cyanobacteria and algae: a case study from Czech ponds.

The palaeolimnological potential of diatom assemblages in floodplain lakes of the Danube Delta, Romania: a pilot study

Climate-driven shifts in diatom assemblages recorded in annually laminated sediments of Sacrower See (NE Germany)

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