Camarena-Gomez , M T , Ruiz-Gonzalez , C , Piiparinen , J , Lipsewers , T , Sobrino , C , Logares , R & Spilling , K 2021 , ' Bacterioplankton dynamics driven by interannual and spatial variation in diatom and dinoflagellate spring bloom communities in the Baltic Sea ' , Limnology and Oceanography , vol. 66 , no. 1 , pp. 255-271 . https://doi.org/10.1002/lno.11601
Title: | Bacterioplankton dynamics driven by interannual and spatial variation in diatom and dinoflagellate spring bloom communities in the Baltic Sea |
Author: | Camarena-Gomez, Maria Teresa; Ruiz-Gonzalez, Clara; Piiparinen, Jonna; Lipsewers, Tobias; Sobrino, Cristina; Logares, Ramiro; Spilling, Kristian |
Contributor organization: | Tvärminne Zoological Station |
Date: | 2021-01 |
Language: | eng |
Number of pages: | 17 |
Belongs to series: | Limnology and Oceanography |
ISSN: | 0024-3590 |
DOI: | https://doi.org/10.1002/lno.11601 |
URI: | http://hdl.handle.net/10138/341315 |
Abstract: | In parts of the Baltic Sea, the phytoplankton spring bloom communities, commonly dominated by diatoms, are shifting toward the co-occurrence of diatoms and dinoflagellates. Although phytoplankton are known to shape the composition and function of associated bacterioplankton communities, the potential bacterial responses to such a decrease of diatoms are unknown. Here we explored the changes in bacterial communities and heterotrophic production during the spring bloom in four consecutive spring blooms across several sub-basins of the Baltic Sea and related them to changes in environmental variables and in phytoplankton community structure. The taxonomic structure of bacterioplankton assemblages was partially explained by salinity and temperature but also linked to the phytoplankton community. Higher carbon biomass of the diatomsAchnanthes taeniata,Skeletonema marinoi,Thalassiosira levanderi, andChaetocerosspp. was associated with more diverse bacterial communities dominated by copiotrophic bacteria (Flavobacteriia, Gammaproteobacteria, and Betaproteobacteria) and higher bacterial production. During dinoflagellate dominance, bacterial production was low and bacterial communities were dominated by Alphaproteobacteria, mainly SAR11. Our results suggest that increases in dinoflagellate abundance during the spring bloom will largely affect the structuring and functioning of the associated bacterial communities. This could decrease pelagic remineralization of organic matter and possibly affect the bacterial grazers communities. |
Subject: |
DISSOLVED ORGANIC-CARBON
BACTERIAL PRODUCTION PHYTOPLANKTON GROWTH PRODUCTIVITY POPULATIONS CRENOTHRIX SUCCESSION LIMITATION ABUNDANCE 1181 Ecology, evolutionary biology |
Peer reviewed: | Yes |
Rights: | cc_by |
Usage restriction: | openAccess |
Self-archived version: | publishedVersion |
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