Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus

Martínez-Dios, Ariadna; Pelejero, Carles; López-Sanz, Àngel; Sherrell, Robert M.; Ko, Stanley; Häussermann, Vreni; Försterra, Günter; Calvo, Eva María; Consejo Superior de Investigaciones Científicas (España)

Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus

28 pages, 5 figures, 6 tables, supplemental information https://doi.org/10.7717/peerj.8236/supp-1 and https://doi.org/10.7717/peerj.8236/supp-2.-- The data on weight, calciﬁcation rate and mortality of D. dianthus corals during the experiment is available as a Supplemental File https://doi.org/10.7717/peerj.8236/supp-1

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Main Authors:	Martínez-Dios, Ariadna, Pelejero, Carles, López-Sanz, Àngel, Sherrell, Robert M., Ko, Stanley, Häussermann, Vreni, Försterra, Günter, Calvo, Eva María
Other Authors:	Consejo Superior de Investigaciones Científicas (España)
Format:	artículo biblioteca
Published:	PeerJ 2020-01
Subjects:	Scleractinian corals, Deep-sea corals, Ocean acidiﬁcation, Global change, Coral calcification, Carbonate saturation, Coral feeding,
Online Access:	http://hdl.handle.net/10261/209325 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100007827 http://dx.doi.org/10.13039/501100007829 http://dx.doi.org/10.13039/501100011033
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id	dig-icm-es-10261-209325
record_format	koha
spelling	dig-icm-es-10261-2093252021-12-27T16:54:54Z Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus Martínez-Dios, Ariadna Pelejero, Carles López-Sanz, Àngel Sherrell, Robert M. Ko, Stanley Häussermann, Vreni Försterra, Günter Calvo, Eva María Consejo Superior de Investigaciones Científicas (España) Fundación Endesa Fundación San Ignacio del Huinay Ministerio de Economía y Competitividad (España) Agencia Estatal de Investigación (España) Scleractinian corals Deep-sea corals Ocean acidiﬁcation Global change Coral calcification Carbonate saturation Coral feeding 28 pages, 5 figures, 6 tables, supplemental information https://doi.org/10.7717/peerj.8236/supp-1 and https://doi.org/10.7717/peerj.8236/supp-2.-- The data on weight, calciﬁcation rate and mortality of D. dianthus corals during the experiment is available as a Supplemental File https://doi.org/10.7717/peerj.8236/supp-1 Cold-Water Corals (CWCs), and most marine calcifiers, are especially threatened by ocean acidification (OA) and the decrease in the carbonate saturation state of seawater. The vulnerability of these organisms, however, also involves other global stressors like warming, deoxygenation or changes in sea surface productivity and, hence, food supply via the downward transport of organic matter to the deep ocean. This study examined the response of the CWC Desmophyllum dianthus to low pH under different feeding regimes through a long-term incubation experiment. For this experiment, 152 polyps were incubated at pH 8.1, 7.8, 7.5 and 7.2 and two feeding regimes for 14 months. Mean calcification rates over the entire duration of the experiment ranged between ¿0.3 and 0.3 mg CaCO3 g¿1d¿1. Polyps incubated at pH 7.2 were the most affected and 30% mortality was observed in this treatment. In addition, many of the surviving polyps at pH 7.2 showed negative calcification rates indicating that, in the long term, CWCs may have difficulty thriving in such aragonite undersaturated waters. The feeding regime had a significant effect on skeletal growth of corals, with high feeding frequency resulting in more positive and variable calcification rates. This was especially evident in corals reared at pH 7.5 (¿A = 0.8) compared to the low frequency feeding treatment. Early life-stages, which are essential for the recruitment and maintenance of coral communities and their associated biodiversity, were revealed to be at highest risk. Overall, this study demonstrates the vulnerability of D. dianthus corals to low pH and low food availability. Future projected pH decreases and related changes in zooplankton communities may potentially compromise the viability of CWC populations. This work was supported by projects GEODESMO (2014CL0020), funded by Consejo Superior de Investigaciones Científicas (CSIC), Fundación Endesa y Fundación San Ignacio de Huinay and SCORE (CGL-2015-68194-R) funded by the Spanish Ministry of Science, Innovation and Universities, which included a Formación de Personal Investigador (FPI) PhD grant to Ariadna Martínez Dios With the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI) 2020-04-28T08:01:42Z 2020-04-28T08:01:42Z 2020-01 2020-04-28T08:01:43Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.7717/peerj.8236 e-issn: 2167-8359 PeerJ 8: e8236 (2020) CEX2019-000928-S http://hdl.handle.net/10261/209325 10.7717/peerj.8236 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100007827 http://dx.doi.org/10.13039/501100007829 http://dx.doi.org/10.13039/501100011033 31915573 #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2015-68194-R Publisher's version https://doi.org/10.7717/peerj.8236 Sí open PeerJ
institution	ICM ES
collection	DSpace
country	España
countrycode	ES
component	Bibliográfico
access	En linea
databasecode	dig-icm-es
tag	biblioteca
region	Europa del Sur
libraryname	Biblioteca del ICM España
topic	Scleractinian corals Deep-sea corals Ocean acidiﬁcation Global change Coral calcification Carbonate saturation Coral feeding Scleractinian corals Deep-sea corals Ocean acidiﬁcation Global change Coral calcification Carbonate saturation Coral feeding
spellingShingle	Scleractinian corals Deep-sea corals Ocean acidiﬁcation Global change Coral calcification Carbonate saturation Coral feeding Scleractinian corals Deep-sea corals Ocean acidiﬁcation Global change Coral calcification Carbonate saturation Coral feeding Martínez-Dios, Ariadna Pelejero, Carles López-Sanz, Àngel Sherrell, Robert M. Ko, Stanley Häussermann, Vreni Försterra, Günter Calvo, Eva María Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus
description	28 pages, 5 figures, 6 tables, supplemental information https://doi.org/10.7717/peerj.8236/supp-1 and https://doi.org/10.7717/peerj.8236/supp-2.-- The data on weight, calciﬁcation rate and mortality of D. dianthus corals during the experiment is available as a Supplemental File https://doi.org/10.7717/peerj.8236/supp-1
author2	Consejo Superior de Investigaciones Científicas (España)
author_facet	Consejo Superior de Investigaciones Científicas (España) Martínez-Dios, Ariadna Pelejero, Carles López-Sanz, Àngel Sherrell, Robert M. Ko, Stanley Häussermann, Vreni Försterra, Günter Calvo, Eva María
format	artículo
topic_facet	Scleractinian corals Deep-sea corals Ocean acidiﬁcation Global change Coral calcification Carbonate saturation Coral feeding
author	Martínez-Dios, Ariadna Pelejero, Carles López-Sanz, Àngel Sherrell, Robert M. Ko, Stanley Häussermann, Vreni Försterra, Günter Calvo, Eva María
author_sort	Martínez-Dios, Ariadna
title	Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus
title_short	Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus
title_full	Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus
title_fullStr	Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus
title_full_unstemmed	Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus
title_sort	effects of low ph and feeding on calcification rates of the cold-water coral desmophyllum dianthus
publisher	PeerJ
publishDate	2020-01
url	http://hdl.handle.net/10261/209325 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100007827 http://dx.doi.org/10.13039/501100007829 http://dx.doi.org/10.13039/501100011033
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Effects of low pH and feeding on calcification rates of the cold-water coral Desmophyllum dianthus

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