Synergistic effects of hypoxia and increasing CO2 on benthic invertebrates of the central Chilean coast

Handle URI:
http://hdl.handle.net/10754/560377
Title:
Synergistic effects of hypoxia and increasing CO2 on benthic invertebrates of the central Chilean coast
Authors:
Steckbauer, Alexandra; Ramajo, Laura; Hendriks, Iris E.; Fernandez, Miriam; Lagos, Nelson A.; Prado, Luis; Duarte, Carlos M. ( 0000-0002-1213-1361 )
Abstract:
Ocean acidification (OA) and hypoxic events are an increasing worldwide problem, but the synergetic effects of these factors are seldom explored. However, this synergetic occurrence of stressors is prevalent. The coastline of Chile not only suffers from coastal hypoxia but the cold, oxygen-poor waters in upwelling events are also supersaturated in CO2, a study site to explore the combined effect of OA and hypoxia. We experimentally evaluated the metabolic response of different invertebrate species (2 anthozoans, 9 molluscs, 4 crustaceans, 2 echinoderms) of the coastline of central Chile (33°30′S, 71°37′W) to hypoxia and OA within predicted levels and in a full factorial design. Organisms were exposed to 4 different treatments (ambient, low oxygen, high CO2, and the combination of low oxygen and high CO2) and metabolism was measured after 3 and 6 days. We show that the combination of hypoxia and increased pCO2 reduces the respiration significantly, compared to a single stressor. The evaluation of synergistic pressures, a more realistic scenario than single stressors, is crucial to evaluate the effect of future changes for coastal species and our results provide the first insight on what might happen in the next 100 years.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Synergistic effects of hypoxia and increasing CO2 on benthic invertebrates of the central Chilean coast 2015, 2 Frontiers in Marine Science
Publisher:
Frontiers Media SA
Journal:
Frontiers in Marine Science
Issue Date:
10-Jul-2015
DOI:
10.3389/fmars.2015.00049
Type:
Article
ISSN:
2296-7745
Additional Links:
http://journal.frontiersin.org/article/10.3389/fmars.2015.00049
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorSteckbauer, Alexandraen
dc.contributor.authorRamajo, Lauraen
dc.contributor.authorHendriks, Iris E.en
dc.contributor.authorFernandez, Miriamen
dc.contributor.authorLagos, Nelson A.en
dc.contributor.authorPrado, Luisen
dc.contributor.authorDuarte, Carlos M.en
dc.date.accessioned2015-07-14T11:58:36Zen
dc.date.available2015-07-14T11:58:36Zen
dc.date.issued2015-07-10en
dc.identifier.citationSynergistic effects of hypoxia and increasing CO2 on benthic invertebrates of the central Chilean coast 2015, 2 Frontiers in Marine Scienceen
dc.identifier.issn2296-7745en
dc.identifier.doi10.3389/fmars.2015.00049en
dc.identifier.urihttp://hdl.handle.net/10754/560377en
dc.description.abstractOcean acidification (OA) and hypoxic events are an increasing worldwide problem, but the synergetic effects of these factors are seldom explored. However, this synergetic occurrence of stressors is prevalent. The coastline of Chile not only suffers from coastal hypoxia but the cold, oxygen-poor waters in upwelling events are also supersaturated in CO2, a study site to explore the combined effect of OA and hypoxia. We experimentally evaluated the metabolic response of different invertebrate species (2 anthozoans, 9 molluscs, 4 crustaceans, 2 echinoderms) of the coastline of central Chile (33°30′S, 71°37′W) to hypoxia and OA within predicted levels and in a full factorial design. Organisms were exposed to 4 different treatments (ambient, low oxygen, high CO2, and the combination of low oxygen and high CO2) and metabolism was measured after 3 and 6 days. We show that the combination of hypoxia and increased pCO2 reduces the respiration significantly, compared to a single stressor. The evaluation of synergistic pressures, a more realistic scenario than single stressors, is crucial to evaluate the effect of future changes for coastal species and our results provide the first insight on what might happen in the next 100 years.en
dc.publisherFrontiers Media SAen
dc.relation.urlhttp://journal.frontiersin.org/article/10.3389/fmars.2015.00049en
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en
dc.subjecthypoxiaen
dc.subjectocean acidificationen
dc.subjectChileen
dc.subjectinvertebratesen
dc.subjectrespiration rateen
dc.titleSynergistic effects of hypoxia and increasing CO2 on benthic invertebrates of the central Chilean coasten
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalFrontiers in Marine Scienceen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionGlobal Change Department, Instituto Mediterráneo de Estudios Avanzados IMEDEA (CSIC-UIB), Esporles, Spainen
dc.contributor.institutionCentro de Investigación e Innovación para el Cambio Climático (CiiCC), Universidad Santo Tomás, Santiago, Chileen
dc.contributor.institutionEstación Costera de Investigaciones Marinas de Las Cruces, Departamento de Ecología, Centro de Conservación Marina, Pontificia Universidad Católica de Chile, Las Cruces, Chileen
dc.contributor.institutionCenter for the study of Multiple Drivers on Marine Socio-Ecological Systems, Universidad de Concepción, Concepción, Chileen
kaust.authorDuarte, Carlos M.en
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