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Short-term effects of increased temperature and lowered pH on a temperate grazer-seaweed interaction (Littorina obtusata/Ascophyllum nodosum)

2017Journal article Restricted access
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dc.contributor.authorCardoso, Patricia G.
dc.contributor.authorF. Grilo, Tiago
dc.contributor.authorDionísio, Gisela
dc.contributor.authorAurelio, Maria
dc.contributor.authorLopes, Ana Rita
dc.contributor.authorPereira, Ricardo
dc.contributor.authorPacheco, Mário
dc.contributor.authorRosa, Rui
dc.date.accessioned2020-01-19T20:06:15Z
dc.date.available2020-01-19T20:06:15Z
dc.date.issued2017
dc.description.abstractThere has been a significant increase in the literature regarding the effects of warming and acidification on the marine ecosystem. To our knowledge, there is very little information on the potential effects of both combined stressors on marine grazer-seaweed interactions. Here, we evaluated, for the first time several phenotypic responses (e.g periwinkle survival, condition index, consumption rates, seaweed photosynthetic activity and oxidative stress) of the temperate periwinkle Littorina obtusata (grazer) and the brown seaweed Ascophyllum nodosum (prey) to such climate change-related variables, for 15 days. Increased temperature (22 °C, pH 8.0) elicited a significant lethal effect on the periwinkle within a short-term period (mortality rate > 90%). Acidification condition (18 °C, pH 7.6) was the one that showed lower mortality rates (≈20%), reflected by lower impact on periwinkle fitness and consumption rates. Under a scenario of increased temperature and lowered pH the antioxidant defences of L. obtusata seemed to be supressed increasing the risk of peroxidative damage. The seaweed evidenced signs of cellular damage under such conditions. These results suggest that: i) lower pH per se seems to benefit the interaction between grazer and seaweed while, ii) a combined scenario of increased temperature and lowered pH may be negative for the interaction, due to the unbalance between periwinkle mortality rates and consumption rates. But most importantly, since grazing often plays an important role on structuring natural communities, such predator-prey disturbances can elicit cascading effects on the remaining community structure and functioning of the temperate rocky-shore ecosystems.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.ecss.2017.08.007pt_PT
dc.identifier.issn0272-7714
dc.identifier.urihttp://hdl.handle.net/10451/41139
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0272771416303468pt_PT
dc.subjectWarmingpt_PT
dc.subjectAcidificationpt_PT
dc.subjectGrazer-seaweed interactionspt_PT
dc.subjectLittorina obtusatapt_PT
dc.subjectAscophyllum nodosumpt_PT
dc.titleShort-term effects of increased temperature and lowered pH on a temperate grazer-seaweed interaction (Littorina obtusata/Ascophyllum nodosum)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage44pt_PT
oaire.citation.startPage35pt_PT
oaire.citation.titleEstuarine, Coastal and Shelf Sciencept_PT
oaire.citation.volume197pt_PT
person.familyNameF. Grilo
person.familyNameDionísio
person.familyNameAurelio
person.familyNameLopes
person.familyNameRosa
person.givenNameTiago
person.givenNameGisela
person.givenNameMaria
person.givenNameAna Rita
person.givenNameRui
person.identifier298096
person.identifierH-3227-2014
person.identifier430759
person.identifier.ciencia-idA21C-B520-D46B
person.identifier.ciencia-id321D-EE64-25CD
person.identifier.ciencia-id611A-674E-B9CD
person.identifier.ciencia-id2B10-7D61-FF7A
person.identifier.orcid0000-0003-3403-4287
person.identifier.orcid0000-0001-8891-9908
person.identifier.orcid0000-0001-7109-6458
person.identifier.orcid0000-0002-3992-0715
person.identifier.orcid0000-0003-2801-5178
person.identifier.ridC-4482-2013
person.identifier.ridA-4580-2009
person.identifier.scopus-author-id26534096600
person.identifier.scopus-author-id15833954700
person.identifier.scopus-author-id55895278700
person.identifier.scopus-author-id7102610088
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication982c10dc-4868-40d0-a79c-8d619bfb9c6e
relation.isAuthorOfPublicationd02e3d2c-6519-42dd-bbf5-d1eed97f1aa8
relation.isAuthorOfPublication460a5651-b556-4565-9a71-aea1223bfd05
relation.isAuthorOfPublication70f0a966-815d-45c5-9540-ad733c62d223
relation.isAuthorOfPublication395f77c0-ac42-4b7c-9b4a-07fdb75305cc
relation.isAuthorOfPublication.latestForDiscovery460a5651-b556-4565-9a71-aea1223bfd05

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