Journal article
Future climate change is predicted to affect the microbiome and condition of habitat-forming kelp
Proceedings. Biological sciences, Vol.286(1896), pp.1-10
2019
Abstract
Climate change is driving global declines of marine habitat-forming species through physiological effects and through changes to ecological interactions, with projected trajectories for oceanwarming and acidification likely to exacerbate such impacts in coming decades. Interactions between habitat-formers and their microbiomes are fundamental for host functioning and resilience, but how such relationships will change in future conditions is largely unknown. We investigated independent and interactive effects of warming and acidification on a large brown seaweed, the kelp Ecklonia radiata, and its associated microbiome in experimental mesocosms. Microbial communities were affected by warming and, during the first week, by acidification. During the second week, kelp developed disease-like symptoms previously observed in the field. The tissue of some kelp blistered, bleached and eventually degraded, particularly under the acidification treatments, affecting photosynthetic efficiency. Microbial communities differed between blistered and healthy kelp for all treatments, except for those under future conditions of warming and acidification, which after two weeks resembled assemblages associated with healthy hosts. This indicates that changes in the microbiome were not easily predictable as the severity of future climate scenarios increased. Future ocean conditions can change kelp microbiomes and may lead to host disease, with potentially cascading impacts on associated ecosystems.
Details
- Title
- Future climate change is predicted to affect the microbiome and condition of habitat-forming kelp
- Authors
- Z Qiu (Author) - University of New South WalesM A Coleman (Author) - NSW FisheriesE Provost (Author) - Southern Cross UniversityAlexandra H Campbell (Author) - University of the Sunshine Coast - School of Health & Sports SciencesB P Kelaher (Author) - Southern Cross UniversityS J Dalton (Author) - Southern Cross UniversityT Thomas (Author) - University of New South WalesP D Steinberg (Author) - University of New South WalesE M Marzinelli (Author) - University of New South Wales
- Publication details
- Proceedings. Biological sciences, Vol.286(1896), pp.1-10
- Publisher
- Royal Society of Chemistry (R S C) Publications
- Date published
- 2019
- DOI
- 10.1098/rspb.2018.1887
- ISSN
- 0962-8452
- Copyright note
- Copyright © 2019 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
- Organisation Unit
- School of Health - Biomedicine; University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy; School of Health and Behavioural Sciences - Legacy
- Language
- English
- Record Identifier
- 99450903902621
- Output Type
- Journal article
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