umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Spring and Late Summer Phytoplankton Biomass Impact on the Coastal Sediment Microbial Community Structure
Show others and affiliations
2019 (English)In: Microbial Ecology, ISSN 0095-3628, E-ISSN 1432-184X, Vol. 77, no 2, p. 288-303Article in journal (Refereed) Published
Abstract [en]

Two annual Baltic Sea phytoplankton blooms occur in spring and summer. The bloom intensity is determined by nutrient concentrations in the water, while the period depends on weather conditions. During the course of the bloom, dead cells sink to the sediment where their degradation consumes oxygen to create hypoxic zones (< 2 mg/L dissolved oxygen). These zones prevent the establishment of benthic communities and may result in fish mortality. The aim of the study was to determine how the spring and autumn sediment chemistry and microbial community composition changed due to degradation of diatom or cyanobacterial biomass, respectively. Results from incubation of sediment cores showed some typical anaerobic microbial processes after biomass addition such as a decrease in NO2 + NO3 in the sediment surface (0–1 cm) and iron in the underlying layer (1–2 cm). In addition, an increase in NO2 + NO3 was observed in the overlying benthic water in all amended and control incubations. The combination of NO2 + NO3 diffusion plus nitrification could not account for this increase. Based on 16S rRNA gene sequences, the addition of cyanobacterial biomass during autumn caused a large increase in ferrous iron-oxidizing archaea while diatom biomass amendment during spring caused minor changes in the microbial community. Considering that OTUs sharing lineages with acidophilic microorganisms had a high relative abundance during autumn, it was suggested that specific niches developed in sediment microenvironments. These findings highlight the importance of nitrogen cycling and early microbial community changes in the sediment due to sinking phytoplankton before potential hypoxia occurs.

Place, publisher, year, edition, pages
Springer, 2019. Vol. 77, no 2, p. 288-303
Keywords [en]
16S rRNA, Cyanobacteria, Diatom, Phytoplankton, Algae, Bloom, Sediment
National Category
Microbiology
Identifiers
URN: urn:nbn:se:umu:diva-157632DOI: 10.1007/s00248-018-1229-6ISI: 000460479100002PubMedID: 30019110Scopus ID: 2-s2.0-85049948034OAI: oai:DiVA.org:umu-157632DiVA, id: diva2:1299232
Available from: 2019-03-26 Created: 2019-03-26 Last updated: 2019-04-01Bibliographically approved

Open Access in DiVA

fulltext(3728 kB)62 downloads
File information
File name FULLTEXT01.pdfFile size 3728 kBChecksum SHA-512
7ba04487de8395ef4e9920dacc79e888f5a40f798e40ddc8f250d7fbe2e250d195fac75507f5d0c00b74bfa0a61afd05823049360ffa88afa6b03ec0ae0d4017
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMedScopus

Search in DiVA

By author/editor
Broman, Elias
In the same journal
Microbial Ecology
Microbiology

Search outside of DiVA

GoogleGoogle Scholar
Total: 62 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 128 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf