Robust bacterial co-occurence community structures are independent of r- and K-selection history
Abstract Selection for bacteria which are K-strategists instead of r-strategists has been shown to improve fish health and survival in aquaculture. We considered an experiment where microcosms were inoculated with natural seawater and the selection regime was switched from K-selection (by continuous...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-12-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-03018-z |
| _version_ | 1818572599516463104 |
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| author | Jakob Peder Pettersen Madeleine S. Gundersen Eivind Almaas |
| author_facet | Jakob Peder Pettersen Madeleine S. Gundersen Eivind Almaas |
| author_sort | Jakob Peder Pettersen |
| collection | DOAJ |
| description | Abstract Selection for bacteria which are K-strategists instead of r-strategists has been shown to improve fish health and survival in aquaculture. We considered an experiment where microcosms were inoculated with natural seawater and the selection regime was switched from K-selection (by continuous feeding) to r-selection (by pulse feeding) and vice versa. We found the networks of significant co-occurrences to contain clusters of taxonomically related bacteria having positive associations. Comparing this with the time dynamics, we found that the clusters most likely were results of similar niche preferences of the involved bacteria. In particular, the distinction between r- or K-strategists was evident. Each selection regime seemed to give rise to a specific pattern, to which the community converges regardless of its prehistory. Furthermore, the results proved robust to parameter choices in the analysis, such as the filtering threshold, level of random noise, replacing absolute abundances with relative abundances, and the choice of similarity measure. Even though our data and approaches cannot directly predict ecological interactions, our approach provides insights on how the selection regime affects the composition of the microbial community, providing a basis for aquaculture experiments targeted at eliminating opportunistic fish pathogens. |
| first_indexed | 2024-12-14T23:59:46Z |
| format | Article |
| id | doaj.art-5a9ec3dc5b894bf5a2dea111c65ea94a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-14T23:59:46Z |
| publishDate | 2021-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-5a9ec3dc5b894bf5a2dea111c65ea94a2022-12-21T22:42:58ZengNature PortfolioScientific Reports2045-23222021-12-0111111210.1038/s41598-021-03018-zRobust bacterial co-occurence community structures are independent of r- and K-selection historyJakob Peder Pettersen0Madeleine S. Gundersen1Eivind Almaas2Department of Biotechnology and Food Science, NTNU - Norwegian University of Science and TechnologyDepartment of Biotechnology and Food Science, NTNU - Norwegian University of Science and TechnologyDepartment of Biotechnology and Food Science, NTNU - Norwegian University of Science and TechnologyAbstract Selection for bacteria which are K-strategists instead of r-strategists has been shown to improve fish health and survival in aquaculture. We considered an experiment where microcosms were inoculated with natural seawater and the selection regime was switched from K-selection (by continuous feeding) to r-selection (by pulse feeding) and vice versa. We found the networks of significant co-occurrences to contain clusters of taxonomically related bacteria having positive associations. Comparing this with the time dynamics, we found that the clusters most likely were results of similar niche preferences of the involved bacteria. In particular, the distinction between r- or K-strategists was evident. Each selection regime seemed to give rise to a specific pattern, to which the community converges regardless of its prehistory. Furthermore, the results proved robust to parameter choices in the analysis, such as the filtering threshold, level of random noise, replacing absolute abundances with relative abundances, and the choice of similarity measure. Even though our data and approaches cannot directly predict ecological interactions, our approach provides insights on how the selection regime affects the composition of the microbial community, providing a basis for aquaculture experiments targeted at eliminating opportunistic fish pathogens.https://doi.org/10.1038/s41598-021-03018-z |
| spellingShingle | Jakob Peder Pettersen Madeleine S. Gundersen Eivind Almaas Robust bacterial co-occurence community structures are independent of r- and K-selection history Scientific Reports |
| title | Robust bacterial co-occurence community structures are independent of r- and K-selection history |
| title_full | Robust bacterial co-occurence community structures are independent of r- and K-selection history |
| title_fullStr | Robust bacterial co-occurence community structures are independent of r- and K-selection history |
| title_full_unstemmed | Robust bacterial co-occurence community structures are independent of r- and K-selection history |
| title_short | Robust bacterial co-occurence community structures are independent of r- and K-selection history |
| title_sort | robust bacterial co occurence community structures are independent of r and k selection history |
| url | https://doi.org/10.1038/s41598-021-03018-z |
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