Microbiome variation in corals with distinct depth distribution ranges across a shallow-mesophotic gradient (15-85 m)

Author(s)
Bettina Glasl, Pim Bongaerts, Nathalie H. Elisabeth, Ove Hoegh-Guldberg, Gerhard J. Herndl, Pedro R. Frade
Abstract

Mesophotic coral ecosystems (MCEs) are generally poorly studied, and our knowledge of lower MCEs (below 60 m depth) is largely limited to visual surveys. Here, we provide a first detailed assessment of the prokaryotic community associated with scleractinian corals over a depth gradient to the lower mesophotic realm (15-85 m). Specimens of three Caribbean coral species exhibiting differences in their depth distribution ranges (Agaricia grahamae, Madracis pharensis and Stephanocoenia intersepta) were collected with a manned submersible on the island of Cura double dagger ao, and their prokaryotic communities assessed using 16S rRNA gene sequencing analysis. Corals with narrower depth distribution ranges (depth-specialists) were associated with a stable prokaryotic community, whereas corals with a broader niche range (depth-generalists) revealed a higher variability in their prokaryotic community. The observed depth effects match previously described patterns in Symbiodinium depth zonation. This highlights the contribution of structured microbial communities over depth to the coral's ability to colonize a broader depth range.

Organisation(s)
Department of Limnology and Bio-Oceanography
Journal
Coral Reefs
Volume
36
Pages
447-452
No. of pages
6
ISSN
0722-4028
DOI
https://doi.org/10.1007/s00338-016-1517-x
Publication date
06-2017
Publication status
Published
Peer reviewed
Yes
Austrian Fields of Science 2012
106021 Marine biology
Keywords
Mesophotic coral ecosystems, Prokaryotic community, 16S rRNA tag sequencing, Indicator species, ASSOCIATIONS, SEQUENCES, COMMUNITY, DIVERSITY, BACTERIA, MUCUS
Portal url
https://ucris.univie.ac.at/portal/en/publications/microbiome-variation-in-corals-with-distinct-depth-distribution-ranges-across-a-shallowmesophotic-gradient-1585-m(8af6f38b-ce58-430c-9791-2bb3b7b1c73e).html