Viral predation pressure on coral reefs.
Bacteriophages
Benthic cover
Coral cover
Fish biomass
Microbialization
Phase-shift
Journal
BMC biology
ISSN: 1741-7007
Titre abrégé: BMC Biol
Pays: England
ID NLM: 101190720
Informations de publication
Date de publication:
11 04 2023
11 04 2023
Historique:
received:
23
06
2022
accepted:
17
03
2023
medline:
12
4
2023
entrez:
10
4
2023
pubmed:
11
4
2023
Statut:
epublish
Résumé
Predation pressure and herbivory exert cascading effects on coral reef health and stability. However, the extent of these cascading effects can vary considerably across space and time. This variability is likely a result of the complex interactions between coral reefs' biotic and abiotic dimensions. A major biological component that has been poorly integrated into the reefs' trophic studies is the microbial community, despite its role in coral death and bleaching susceptibility. Viruses that infect bacteria can control microbial densities and may positively affect coral health by controlling microbialization. We hypothesize that viral predation of bacteria has analogous effects to the top-down pressure of macroorganisms on the trophic structure and reef health. Here, we investigated the relationships between live coral cover and viruses, bacteria, benthic algae, fish biomass, and water chemistry in 110 reefs spanning inhabited and uninhabited islands and atolls across the Pacific Ocean. Statistical learning showed that the abundance of turf algae, viruses, and bacteria, in that order, were the variables best predicting the variance in coral cover. While fish biomass was not a strong predictor of coral cover, the relationship between fish and corals became apparent when analyzed in the context of viral predation: high coral cover (> 50%) occurred on reefs with a combination of high predator fish biomass (sum of sharks and piscivores > 200 g m The results presented here support the hypothesis that viral predation of bacteria is associated with high coral cover and, thus, coral health and stability. We propose that combined predation pressures from fishes and viruses control energy fluxes, inhibiting the detrimental accumulation of ecosystem energy in the microbial food web.
Sections du résumé
BACKGROUND
Predation pressure and herbivory exert cascading effects on coral reef health and stability. However, the extent of these cascading effects can vary considerably across space and time. This variability is likely a result of the complex interactions between coral reefs' biotic and abiotic dimensions. A major biological component that has been poorly integrated into the reefs' trophic studies is the microbial community, despite its role in coral death and bleaching susceptibility. Viruses that infect bacteria can control microbial densities and may positively affect coral health by controlling microbialization. We hypothesize that viral predation of bacteria has analogous effects to the top-down pressure of macroorganisms on the trophic structure and reef health.
RESULTS
Here, we investigated the relationships between live coral cover and viruses, bacteria, benthic algae, fish biomass, and water chemistry in 110 reefs spanning inhabited and uninhabited islands and atolls across the Pacific Ocean. Statistical learning showed that the abundance of turf algae, viruses, and bacteria, in that order, were the variables best predicting the variance in coral cover. While fish biomass was not a strong predictor of coral cover, the relationship between fish and corals became apparent when analyzed in the context of viral predation: high coral cover (> 50%) occurred on reefs with a combination of high predator fish biomass (sum of sharks and piscivores > 200 g m
CONCLUSIONS
The results presented here support the hypothesis that viral predation of bacteria is associated with high coral cover and, thus, coral health and stability. We propose that combined predation pressures from fishes and viruses control energy fluxes, inhibiting the detrimental accumulation of ecosystem energy in the microbial food web.
Identifiants
pubmed: 37038111
doi: 10.1186/s12915-023-01571-9
pii: 10.1186/s12915-023-01571-9
pmc: PMC10088212
doi:
Banques de données
figshare
['10.6084/m9.figshare.22255564', '10.6084/m9.figshare.22255573']
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
77Informations de copyright
© 2023. The Author(s).
Références
mSystems. 2020 Sep 15;5(5):
pubmed: 32934113
Commun Biol. 2021 Jun 3;4(1):679
pubmed: 34083722
Nat Commun. 2016 Jun 07;7:11833
pubmed: 27270557
Nat Commun. 2021 Jul 26;12(1):4522
pubmed: 34312399
Oecologia. 2010 Jun;163(2):497-507
pubmed: 20058024
Nat Ecol Evol. 2022 Aug;6(8):1132-1144
pubmed: 35773344
Curr Biol. 2022 Jan 10;32(1):220-227.e5
pubmed: 34758284
PLoS One. 2008 Feb 27;3(2):e1584
pubmed: 18301735
Nat Microbiol. 2018 Jul;3(7):754-766
pubmed: 29867096
Ecol Appl. 2021 Jan;31(1):e02224
pubmed: 32866333
Appl Environ Microbiol. 2004 Nov;70(11):6855-64
pubmed: 15528553
Environ Microbiol. 2016 Sep;18(8):2620-33
pubmed: 27234003
Environ Microbiol. 2015 Oct;17(10):3832-46
pubmed: 25817914
Science. 2018 Jan 5;359(6371):80-83
pubmed: 29302011
Proc Natl Acad Sci U S A. 2002 Oct 29;99(22):14250-5
pubmed: 12384570
Proc Natl Acad Sci U S A. 2020 Jun 16;117(24):13588-13595
pubmed: 32482859
Front Microbiol. 2017 May 22;8:784
pubmed: 28588555
Nature. 2016 Mar 24;531(7595):466-70
pubmed: 26982729
Sci Rep. 2017 Oct 25;7(1):13965
pubmed: 29070893
R Soc Open Sci. 2019 Oct 23;6(10):190298
pubmed: 31824686
Proc Natl Acad Sci U S A. 2014 May 27;111(21):7813-8
pubmed: 24825894
Oecologia. 2017 Jan;183(1):161-175
pubmed: 27744581
PLoS Biol. 2008 Feb;6(2):e54
pubmed: 18303956
Environ Microbiol. 2021 Aug;23(8):4098-4111
pubmed: 34121301
Nat Microbiol. 2016 Apr 25;1(6):16042
pubmed: 27572833
Proc Natl Acad Sci U S A. 2010 Jul 20;107(29):12941-5
pubmed: 20616006
Proc Biol Sci. 2016 Apr 27;283(1829):
pubmed: 27097927
Proc Natl Acad Sci U S A. 2001 Apr 24;98(9):4822-4
pubmed: 11320228
PeerJ. 2013 Jul 16;1:e108
pubmed: 23882445
PeerJ. 2017 Jun 21;5:e3423
pubmed: 28649468
Sci Adv. 2017 Nov 08;3(11):e1701356
pubmed: 29134196
ISME J. 2022 Oct;16(10):2406-2420
pubmed: 35840731
PLoS One. 2012;7(9):e43233
pubmed: 22970122
J Vis Exp. 2014 Nov 05;(93):e52131
pubmed: 25407983
Ecol Lett. 2006 Nov;9(11):1216-27
pubmed: 17040324
Proc Natl Acad Sci U S A. 2005 Apr 12;102(15):5443-7
pubmed: 15802468
Curr Biol. 2018 Nov 5;28(21):3355-3363.e4
pubmed: 30344114
Nature. 2016 Jul 21;535(7612):416-9
pubmed: 27309809
PeerJ. 2014 Jan 02;2:e235
pubmed: 24482757
Science. 2020 Apr 17;368(6488):307-311
pubmed: 32299952
Science. 2001 Jul 27;293(5530):629-37
pubmed: 11474098
Microbiol Mol Biol Rev. 2004 Sep;68(3):560-602, table of contents
pubmed: 15353570
ISME J. 2019 Apr;13(4):921-936
pubmed: 30518818
Sci Adv. 2021 Aug 13;7(33):
pubmed: 34389536
PLoS One. 2011;6(11):e27973
pubmed: 22125645
Proc Natl Acad Sci U S A. 2017 Apr 4;114(14):3660-3665
pubmed: 28320966
Ecol Lett. 2006 Jul;9(7):835-45
pubmed: 16796574
Trends Ecol Evol. 2016 May;31(5):395-407
pubmed: 26975420
FEMS Microbiol Rev. 2017 Jul 1;41(4):575-595
pubmed: 28486655
Elife. 2019 Dec 03;8:
pubmed: 31793432
Ecology. 2016 Jul;97(7):1862-1872
pubmed: 27859162
ISME J. 2014 Nov;8(11):2272-9
pubmed: 24830827
Front Microbiol. 2014 Sep 23;5:493
pubmed: 25295032
Nat Rev Microbiol. 2017 Apr;15(4):205-216
pubmed: 28090075
ISME J. 2016 Sep;10(9):2280-92
pubmed: 26953605
Trends Microbiol. 2012 Dec;20(12):621-8
pubmed: 22944243
Glob Chang Biol. 2020 Sep;26(9):4785-4799
pubmed: 32691514
Int J Syst Evol Microbiol. 2001 Jul;51(Pt 4):1383-1388
pubmed: 11491336
Bioessays. 2020 Jul;42(7):e2000004
pubmed: 32548850
Ecology. 2010 Jul;91(7):1949-61
pubmed: 20715614
Nat Commun. 2013;4:1402
pubmed: 23360993
Am Nat. 2003 Oct;162(4 Suppl):S51-62
pubmed: 14583857
Trends Microbiol. 2002 Nov;10(11):521-9
pubmed: 12419617
PLoS One. 2008 Feb 27;3(2):e1548
pubmed: 18301734
PLoS One. 2009 Nov 26;4(11):e8043
pubmed: 19956632
Ecol Lett. 2018 Mar;21(3):439-454
pubmed: 29316114
BMC Genomics. 2020 Feb 5;21(1):126
pubmed: 32024463
Science. 2006 Jan 6;311(5757):98-101
pubmed: 16400152
Proc Natl Acad Sci U S A. 2012 Oct 30;109(44):17995-9
pubmed: 23027961
ISME J. 2013 May;7(5):962-79
pubmed: 23303369
Science. 2019 Jun 21;364(6446):1189-1192
pubmed: 31123105
Proc Biol Sci. 2016 Jan 13;283(1822):
pubmed: 26740615