Acidification effects on biofouling communities: winners and losers

Detalhes bibliográficos
Autor(a) principal: Peck, Lloyd S.
Data de Publicação: 2015
Outros Autores: Clark, Melody S., Power, Deborah, Reis, Joao, Batista, Frederico, Harper, Elizabeth M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/11701
Resumo: How ocean acidification affects marine life is a major concern for science and society. However, its impacts on encrusting biofouling communities, that are both the initial colonizers of hard substrata and of great economic importance, are almost unknown. We showed that community composition changed significantly, from 92% spirorbids, 3% ascidians and 4% sponges initially to 47% spirorbids, 23% ascidians and 29% sponges after 100days in acidified conditions (pH 7.7). In low pH, numbers of the spirorbid Neodexiospira pseudocorrugata were reduced x5 compared to controls. The two ascidians present behaved differently with Aplidium sp. decreasing x10 in pH 7.7, whereas Molgula sp. numbers were x4 higher in low pH than controls. Calcareous sponge (Leucosolenia sp.) numbers increased x2.5 in pH 7.7 over controls. The diatom and filamentous algal community was also more poorly developed in the low pH treatments compared to controls. Colonization of new surfaces likewise showed large decreases in spirorbid numbers, but numbers of sponges and Molgula sp. increased. Spirorbid losses appeared due to both recruitment failure and loss of existing tubes. Spirorbid tubes are comprised of a loose prismatic fabric of calcite crystals. Loss of tube materials appeared due to changes in the binding matrix and not crystal dissolution, as SEM analyses showed crystal surfaces were not pitted or dissolved in low pH conditions. Biofouling communities face dramatic future changes with reductions in groups with hard exposed exoskeletons and domination by soft-bodied ascidians and sponges.
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spelling Acidification effects on biofouling communities: winners and losersFuture ocean acidificationChanging OceanCarbonic acidMarineColonizationDissociationOrganismsSerpulidsConstantsSeawaterHow ocean acidification affects marine life is a major concern for science and society. However, its impacts on encrusting biofouling communities, that are both the initial colonizers of hard substrata and of great economic importance, are almost unknown. We showed that community composition changed significantly, from 92% spirorbids, 3% ascidians and 4% sponges initially to 47% spirorbids, 23% ascidians and 29% sponges after 100days in acidified conditions (pH 7.7). In low pH, numbers of the spirorbid Neodexiospira pseudocorrugata were reduced x5 compared to controls. The two ascidians present behaved differently with Aplidium sp. decreasing x10 in pH 7.7, whereas Molgula sp. numbers were x4 higher in low pH than controls. Calcareous sponge (Leucosolenia sp.) numbers increased x2.5 in pH 7.7 over controls. The diatom and filamentous algal community was also more poorly developed in the low pH treatments compared to controls. Colonization of new surfaces likewise showed large decreases in spirorbid numbers, but numbers of sponges and Molgula sp. increased. Spirorbid losses appeared due to both recruitment failure and loss of existing tubes. Spirorbid tubes are comprised of a loose prismatic fabric of calcite crystals. Loss of tube materials appeared due to changes in the binding matrix and not crystal dissolution, as SEM analyses showed crystal surfaces were not pitted or dissolved in low pH conditions. Biofouling communities face dramatic future changes with reductions in groups with hard exposed exoskeletons and domination by soft-bodied ascidians and sponges.EU [227799, 00415/2010]; Natural Environment Research Council [bas0100036, bas0100025]Wiley BlackwellSapientiaPeck, Lloyd S.Clark, Melody S.Power, DeborahReis, JoaoBatista, FredericoHarper, Elizabeth M.2018-12-07T14:53:49Z2015-052015-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11701eng1354-101310.1111/gcb.12841info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:23:32Zoai:sapientia.ualg.pt:10400.1/11701Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:03:10.164701Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Acidification effects on biofouling communities: winners and losers
title Acidification effects on biofouling communities: winners and losers
spellingShingle Acidification effects on biofouling communities: winners and losers
Peck, Lloyd S.
Future ocean acidification
Changing Ocean
Carbonic acid
Marine
Colonization
Dissociation
Organisms
Serpulids
Constants
Seawater
title_short Acidification effects on biofouling communities: winners and losers
title_full Acidification effects on biofouling communities: winners and losers
title_fullStr Acidification effects on biofouling communities: winners and losers
title_full_unstemmed Acidification effects on biofouling communities: winners and losers
title_sort Acidification effects on biofouling communities: winners and losers
author Peck, Lloyd S.
author_facet Peck, Lloyd S.
Clark, Melody S.
Power, Deborah
Reis, Joao
Batista, Frederico
Harper, Elizabeth M.
author_role author
author2 Clark, Melody S.
Power, Deborah
Reis, Joao
Batista, Frederico
Harper, Elizabeth M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Peck, Lloyd S.
Clark, Melody S.
Power, Deborah
Reis, Joao
Batista, Frederico
Harper, Elizabeth M.
dc.subject.por.fl_str_mv Future ocean acidification
Changing Ocean
Carbonic acid
Marine
Colonization
Dissociation
Organisms
Serpulids
Constants
Seawater
topic Future ocean acidification
Changing Ocean
Carbonic acid
Marine
Colonization
Dissociation
Organisms
Serpulids
Constants
Seawater
description How ocean acidification affects marine life is a major concern for science and society. However, its impacts on encrusting biofouling communities, that are both the initial colonizers of hard substrata and of great economic importance, are almost unknown. We showed that community composition changed significantly, from 92% spirorbids, 3% ascidians and 4% sponges initially to 47% spirorbids, 23% ascidians and 29% sponges after 100days in acidified conditions (pH 7.7). In low pH, numbers of the spirorbid Neodexiospira pseudocorrugata were reduced x5 compared to controls. The two ascidians present behaved differently with Aplidium sp. decreasing x10 in pH 7.7, whereas Molgula sp. numbers were x4 higher in low pH than controls. Calcareous sponge (Leucosolenia sp.) numbers increased x2.5 in pH 7.7 over controls. The diatom and filamentous algal community was also more poorly developed in the low pH treatments compared to controls. Colonization of new surfaces likewise showed large decreases in spirorbid numbers, but numbers of sponges and Molgula sp. increased. Spirorbid losses appeared due to both recruitment failure and loss of existing tubes. Spirorbid tubes are comprised of a loose prismatic fabric of calcite crystals. Loss of tube materials appeared due to changes in the binding matrix and not crystal dissolution, as SEM analyses showed crystal surfaces were not pitted or dissolved in low pH conditions. Biofouling communities face dramatic future changes with reductions in groups with hard exposed exoskeletons and domination by soft-bodied ascidians and sponges.
publishDate 2015
dc.date.none.fl_str_mv 2015-05
2015-05-01T00:00:00Z
2018-12-07T14:53:49Z
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dc.language.iso.fl_str_mv eng
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10.1111/gcb.12841
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dc.publisher.none.fl_str_mv Wiley Blackwell
publisher.none.fl_str_mv Wiley Blackwell
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