Microbial signatures of protected and impacted Northern Caribbean reefs: changes from Cuba to the Florida Keys.
Journal
Environmental microbiology
ISSN: 1462-2920
Titre abrégé: Environ Microbiol
Pays: England
ID NLM: 100883692
Informations de publication
Date de publication:
01 2020
01 2020
Historique:
received:
17
04
2019
accepted:
18
11
2019
pubmed:
20
11
2019
medline:
1
9
2020
entrez:
20
11
2019
Statut:
ppublish
Résumé
There are a few baseline reef-systems available for understanding the microbiology of healthy coral reefs and their surrounding seawater. Here, we examined the seawater microbial ecology of 25 Northern Caribbean reefs varying in human impact and protection in Cuba and the Florida Keys, USA, by measuring nutrient concentrations, microbial abundances, and respiration rates as well as sequencing bacterial and archaeal amplicons and community functional genes. Overall, seawater microbial composition and biogeochemistry were influenced by reef location and hydrogeography. Seawater from the highly protected 'crown jewel' offshore reefs in Jardines de la Reina, Cuba had low concentrations of nutrients and organic carbon, abundant Prochlorococcus, and high microbial community alpha diversity. Seawater from the less protected system of Los Canarreos, Cuba had elevated microbial community beta-diversity whereas waters from the most impacted nearshore reefs in the Florida Keys contained high organic carbon and nitrogen concentrations and potential microbial functions characteristic of microbialized reefs. Each reef system had distinct microbial signatures and within this context, we propose that the protection and offshore nature of Jardines de la Reina may preserve the oligotrophic paradigm and the metabolic dependence of the community on primary production by picocyanobacteria.
Identifiants
pubmed: 31743949
doi: 10.1111/1462-2920.14870
pmc: PMC6972988
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
499-519Subventions
Organisme : Dalio Foundation
Pays : International
Organisme : Division of Ocean Sciences
ID : 1736288
Pays : International
Organisme : National Science Foundation
Pays : International
Organisme : Cuban Center for Inspection and Environmental Control
Pays : International
Informations de copyright
© 2019 The Authors. Environmental Microbiology published by Society for Applied Microbiology and John Wiley & Sons Ltd.
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