Evidence map›Paper›PMID 16435168›Full record

ArticleMicrobial ecology2006

Effect of nutrient loading on bacterioplankton community composition in lake mesocosms.

Kaisa Haukka, Eija Kolmonen, Rafiqul Hyder, Jaana Hietala, Kirsi Vakkilainen, Timo Kairesalo, Heikki Haario, Kaarina Sivonen

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Microbial ecology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. A guide to the natural history of freshwater lake bacteria.Microbiology and molecular biology reviews : MMBR · 2011
    Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Kaisa HaukkaDepartment of Applied Chemistry and Microbiology, University of Helsinki, P.O. Box 56, Viikki Biocenter, 00014, Helsinki, Finland. kaisa.haukka@ktl.fi
Eija Kolmonen
Rafiqul Hyder
Jaana Hietala
Kirsi Vakkilainen
Timo Kairesalo
Heikki Haario
Kaarina Sivonen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Changes in bacterioplankton community composition were followed in mesocosms set up in the littoral of Lake Vesijärvi, southern Finland, over two summers. Increasing nitrogen and phosphorus concentrations in the mesocosms represented different trophic states, from mesotrophic to hypertrophic. In 1998, the mesocosms were in a turbid state with a high biomass of phytoplankton, whereas in 1999, macrophytes proliferated and a clear-water state prevailed. The bacterial communities in the mesocosms also developed differently, as shown by denaturing gradient gel electrophoresis profiling of partial 16S rRNA gene fragments and by nonmetric multidimensional scaling analysis. In 1998, nutrient treatments affected the diversity and clustering of bacterial communities strongly, but in 1999, the bacterial communities were less diversified and not clearly affected by treatments. Canonical correspondence analysis indicated that bacterioplankton communities in the mesocosms were influenced by environmental physicochemical variables linked to the increasing level of eutrophication. Nitrogen concentration correlated directly with the bacterioplankton composition. In addition, the high nutrient levels had indirect effects through changes in the biomass and composition of phyto- and zooplankton. Sequencing analysis showed that the dominant bacterial divisions remained the same, but the dominant phylotypes changed during the 2-year period. The occurrence of Verrucomicrobia correlated with more eutrophic conditions, whereas the occurrence of Actinobacteria correlated with less eutrophic conditions.

Indexed as

EcosystemEnvironmental MonitoringBacteriaElectrophoresis, Polyacrylamide GelEutrophicationFinlandFresh WaterNitrogenPlanktonRNA, BacterialRNA, Ribosomal, 16SSpecies SpecificityNitrogenRNA, BacterialRNA, Ribosomal, 16S

Identifiers

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.