Cargando…

The physiological response of the deep-sea coral Solenosmilia variabilis to ocean acidification

Several forms of calcifying scleractinian corals provide important habitat complexity in the deep-sea and are consistently associated with a high biodiversity of fish and other invertebrates. How these corals may respond to the future predicted environmental conditions of ocean acidification is poor...

Descripción completa

Detalles Bibliográficos
Autores principales: Gammon, Malindi J., Tracey, Dianne M., Marriott, Peter M., Cummings, Vonda J., Davy, Simon K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6055589/
https://www.ncbi.nlm.nih.gov/pubmed/30042891
http://dx.doi.org/10.7717/peerj.5236
_version_ 1783341202764988416
author Gammon, Malindi J.
Tracey, Dianne M.
Marriott, Peter M.
Cummings, Vonda J.
Davy, Simon K.
author_facet Gammon, Malindi J.
Tracey, Dianne M.
Marriott, Peter M.
Cummings, Vonda J.
Davy, Simon K.
author_sort Gammon, Malindi J.
collection PubMed
description Several forms of calcifying scleractinian corals provide important habitat complexity in the deep-sea and are consistently associated with a high biodiversity of fish and other invertebrates. How these corals may respond to the future predicted environmental conditions of ocean acidification is poorly understood, but any detrimental effects on these marine calcifiers will have wider impacts on the ecosystem. Colonies of Solenosmilia variabilis, a protected deep-sea coral commonly occurring throughout the New Zealand region, were collected during a cruise in March 2014 from the Louisville Seamount Chain. Over a 12-month period, samples were maintained in temperature controlled (∼3.5 °C) continuous flow-through tanks at a seawater pH that reflects the region’s current conditions (7.88) and an end-of-century scenario (7.65). Impacts on coral growth and the intensity of colour saturation (as a proxy for the coenenchyme tissue that covers the coral exoskeleton and links the coral polyps) were measured bimonthly. In addition, respiration rate was measured after a mid-term (six months) and long-term (12 months) exposure period. Growth rates were highly variable, ranging from 0.53 to 3.068 mm year(−1) and showed no detectable difference between the treatment and control colonies. Respiration rates also varied independently of pH and ranged from 0.065 to 1.756 µmol O(2) g protein(−1) h(−1). A significant change in colour was observed in the treatment group over time, indicating a loss of coenenchyme. This loss was greatest after 10 months at 5.28% and could indicate a reallocation of energy with physiological processes (e.g.  growth and respiration) being maintained at the expense of coenenchyme production. This research illustrates important first steps to assessing and understanding the sensitivity of deep-sea corals to ocean acidification.
format Online
Article
Text
id pubmed-6055589
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher PeerJ Inc.
record_format MEDLINE/PubMed
spelling pubmed-60555892018-07-24 The physiological response of the deep-sea coral Solenosmilia variabilis to ocean acidification Gammon, Malindi J. Tracey, Dianne M. Marriott, Peter M. Cummings, Vonda J. Davy, Simon K. PeerJ Aquaculture, Fisheries and Fish Science Several forms of calcifying scleractinian corals provide important habitat complexity in the deep-sea and are consistently associated with a high biodiversity of fish and other invertebrates. How these corals may respond to the future predicted environmental conditions of ocean acidification is poorly understood, but any detrimental effects on these marine calcifiers will have wider impacts on the ecosystem. Colonies of Solenosmilia variabilis, a protected deep-sea coral commonly occurring throughout the New Zealand region, were collected during a cruise in March 2014 from the Louisville Seamount Chain. Over a 12-month period, samples were maintained in temperature controlled (∼3.5 °C) continuous flow-through tanks at a seawater pH that reflects the region’s current conditions (7.88) and an end-of-century scenario (7.65). Impacts on coral growth and the intensity of colour saturation (as a proxy for the coenenchyme tissue that covers the coral exoskeleton and links the coral polyps) were measured bimonthly. In addition, respiration rate was measured after a mid-term (six months) and long-term (12 months) exposure period. Growth rates were highly variable, ranging from 0.53 to 3.068 mm year(−1) and showed no detectable difference between the treatment and control colonies. Respiration rates also varied independently of pH and ranged from 0.065 to 1.756 µmol O(2) g protein(−1) h(−1). A significant change in colour was observed in the treatment group over time, indicating a loss of coenenchyme. This loss was greatest after 10 months at 5.28% and could indicate a reallocation of energy with physiological processes (e.g.  growth and respiration) being maintained at the expense of coenenchyme production. This research illustrates important first steps to assessing and understanding the sensitivity of deep-sea corals to ocean acidification. PeerJ Inc. 2018-07-20 /pmc/articles/PMC6055589/ /pubmed/30042891 http://dx.doi.org/10.7717/peerj.5236 Text en ©2018 Gammon et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Aquaculture, Fisheries and Fish Science
Gammon, Malindi J.
Tracey, Dianne M.
Marriott, Peter M.
Cummings, Vonda J.
Davy, Simon K.
The physiological response of the deep-sea coral Solenosmilia variabilis to ocean acidification
title The physiological response of the deep-sea coral Solenosmilia variabilis to ocean acidification
title_full The physiological response of the deep-sea coral Solenosmilia variabilis to ocean acidification
title_fullStr The physiological response of the deep-sea coral Solenosmilia variabilis to ocean acidification
title_full_unstemmed The physiological response of the deep-sea coral Solenosmilia variabilis to ocean acidification
title_short The physiological response of the deep-sea coral Solenosmilia variabilis to ocean acidification
title_sort physiological response of the deep-sea coral solenosmilia variabilis to ocean acidification
topic Aquaculture, Fisheries and Fish Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6055589/
https://www.ncbi.nlm.nih.gov/pubmed/30042891
http://dx.doi.org/10.7717/peerj.5236
work_keys_str_mv AT gammonmalindij thephysiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT traceydiannem thephysiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT marriottpeterm thephysiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT cummingsvondaj thephysiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT davysimonk thephysiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT gammonmalindij physiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT traceydiannem physiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT marriottpeterm physiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT cummingsvondaj physiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification
AT davysimonk physiologicalresponseofthedeepseacoralsolenosmiliavariabilistooceanacidification