Microbial planktonic communities in the Red Sea: high levels of spatial and temporal variability shaped by nutrient availability and turbulence

Handle URI:
http://hdl.handle.net/10754/625297
Title:
Microbial planktonic communities in the Red Sea: high levels of spatial and temporal variability shaped by nutrient availability and turbulence
Authors:
Pearman, John K. ( 0000-0002-2237-9723 ) ; Ellis, Joanne ( 0000-0002-2625-4274 ) ; Irigoien, Xabier ( 0000-0002-5411-6741 ) ; Sarma, Y. V. B.; Jones, Burton ( 0000-0002-9599-1593 ) ; Carvalho, Susana ( 0000-0003-1300-1953 )
Abstract:
The semi-enclosed nature of the Red Sea (20.2°N-38.5°N) makes it a natural laboratory to study the influence of environmental gradients on microbial communities. This study investigates the composition and structure of microbial prokaryotes and eukaryotes using molecular methods, targeting ribosomal RNA genes across different regions and seasons. The interaction between spatial and temporal scales results in different scenarios of turbulence and nutrient conditions allowing for testing of ecological theory that categorizes the response of the plankton community to these variations. The prokaryotic reads are mainly comprised of Cyanobacteria and Proteobacteria (Alpha and Gamma), with eukaryotic reads dominated by Dinophyceae and Syndiniophyceae. Periodic increases in the proportion of Mamiellophyceae and Bacillariophyceae reads were associated with alterations in the physical oceanography leading to nutrient increases either through the influx of Gulf of Aden Intermediate Water (south in the fall) or through water column mixing processes (north in the spring). We observed that in general dissimilarity amongst microbial communities increased when nutrient concentrations were higher, whereas richness (observed OTUs) was higher in scenarios of higher turbulence. Maximum abundance models showed the differential responses of dominant taxa to temperature giving an indication how taxa will respond as waters become warmer and more oligotrophic.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Red Sea Research Center (RSRC)
Citation:
Pearman JK, Ellis J, Irigoien X, Sarma YVB, Jones BH, et al. (2017) Microbial planktonic communities in the Red Sea: high levels of spatial and temporal variability shaped by nutrient availability and turbulence. Scientific Reports 7. Available: http://dx.doi.org/10.1038/s41598-017-06928-z.
Publisher:
Springer Nature
Journal:
Scientific Reports
Issue Date:
20-Jul-2017
DOI:
10.1038/s41598-017-06928-z
Type:
Article
ISSN:
2045-2322
Sponsors:
The authors would like to thank the crews of the RV Aegaeo and the RV Thuwal who enabled the sampling to be undertaken. We would like to thank Saskia Kürten for undertaking the nutrient analysis, Ute Langner for producing the map figure and Maria Ferri Sanz for producing Fig. 6. Also the help from the Coastal and Marine Resources Core Laboratory in obtaining permits and assistance in the field was deeply appreciated. The authors would also like to thank two anonymous reviewers for their valuable comments. The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) as well as from collaboration between KAUST and Saudi Aramco within the framework of the Saudi Aramco – KAUST Center for Marine Environmental Observations.
Additional Links:
https://www.nature.com/articles/s41598-017-06928-z
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPearman, John K.en
dc.contributor.authorEllis, Joanneen
dc.contributor.authorIrigoien, Xabieren
dc.contributor.authorSarma, Y. V. B.en
dc.contributor.authorJones, Burtonen
dc.contributor.authorCarvalho, Susanaen
dc.date.accessioned2017-08-07T10:52:00Z-
dc.date.available2017-08-07T10:52:00Z-
dc.date.issued2017-07-20en
dc.identifier.citationPearman JK, Ellis J, Irigoien X, Sarma YVB, Jones BH, et al. (2017) Microbial planktonic communities in the Red Sea: high levels of spatial and temporal variability shaped by nutrient availability and turbulence. Scientific Reports 7. Available: http://dx.doi.org/10.1038/s41598-017-06928-z.en
dc.identifier.issn2045-2322en
dc.identifier.doi10.1038/s41598-017-06928-zen
dc.identifier.urihttp://hdl.handle.net/10754/625297-
dc.description.abstractThe semi-enclosed nature of the Red Sea (20.2°N-38.5°N) makes it a natural laboratory to study the influence of environmental gradients on microbial communities. This study investigates the composition and structure of microbial prokaryotes and eukaryotes using molecular methods, targeting ribosomal RNA genes across different regions and seasons. The interaction between spatial and temporal scales results in different scenarios of turbulence and nutrient conditions allowing for testing of ecological theory that categorizes the response of the plankton community to these variations. The prokaryotic reads are mainly comprised of Cyanobacteria and Proteobacteria (Alpha and Gamma), with eukaryotic reads dominated by Dinophyceae and Syndiniophyceae. Periodic increases in the proportion of Mamiellophyceae and Bacillariophyceae reads were associated with alterations in the physical oceanography leading to nutrient increases either through the influx of Gulf of Aden Intermediate Water (south in the fall) or through water column mixing processes (north in the spring). We observed that in general dissimilarity amongst microbial communities increased when nutrient concentrations were higher, whereas richness (observed OTUs) was higher in scenarios of higher turbulence. Maximum abundance models showed the differential responses of dominant taxa to temperature giving an indication how taxa will respond as waters become warmer and more oligotrophic.en
dc.description.sponsorshipThe authors would like to thank the crews of the RV Aegaeo and the RV Thuwal who enabled the sampling to be undertaken. We would like to thank Saskia Kürten for undertaking the nutrient analysis, Ute Langner for producing the map figure and Maria Ferri Sanz for producing Fig. 6. Also the help from the Coastal and Marine Resources Core Laboratory in obtaining permits and assistance in the field was deeply appreciated. The authors would also like to thank two anonymous reviewers for their valuable comments. The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) as well as from collaboration between KAUST and Saudi Aramco within the framework of the Saudi Aramco – KAUST Center for Marine Environmental Observations.en
dc.publisherSpringer Natureen
dc.relation.urlhttps://www.nature.com/articles/s41598-017-06928-zen
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleMicrobial planktonic communities in the Red Sea: high levels of spatial and temporal variability shaped by nutrient availability and turbulenceen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalScientific Reportsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionAZTI tecnalia, Herrera Kaia, Portualedea z/g Pasaia, Gipuzkoa, 20110, , Spainen
kaust.authorPearman, John K.en
kaust.authorEllis, Joanneen
kaust.authorIrigoien, Xabieren
kaust.authorSarma, Y. V. B.en
kaust.authorJones, Burtonen
kaust.authorCarvalho, Susanaen
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