Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana
Many aquatic animals grow into colonies of repeated, genetically identical, modules (zooids). Zooid interconnections enable colonies to behave as integrated functional units, while plastic responses to environmental changes may affect individual zooids. Plasticity includes the variable partitioning...
Published in: | Marine Environmental Research |
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Language: | French |
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Online Access: | https://semaphore.uqar.ca/id/eprint/2341/ https://semaphore.uqar.ca/id/eprint/2341/1/Chiara_Lombardi_et_al_fevrier2017.pdf https://doi.org/10.1016/j.marenvres.2017.02.002 |
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ftunivquebecar:oai:semaphore.uqar.ca:2341 2023-11-05T03:44:26+01:00 Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana Lombardi, Chiara Taylor, Paul David Cocito, Silvia Bertolini, Camilla Calosi, Piero 2017-04 application/pdf https://semaphore.uqar.ca/id/eprint/2341/ https://semaphore.uqar.ca/id/eprint/2341/1/Chiara_Lombardi_et_al_fevrier2017.pdf https://doi.org/10.1016/j.marenvres.2017.02.002 fr fre https://semaphore.uqar.ca/id/eprint/2341/1/Chiara_Lombardi_et_al_fevrier2017.pdf Lombardi, Chiara, Taylor, Paul David, Cocito, Silvia, Bertolini, Camilla et Calosi, Piero orcid:0000-0003-3378-2603 (2017). Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana. Marine Environmental Research, 125 . pp. 110-117. Article Évalué par les pairs 2017 ftunivquebecar https://doi.org/10.1016/j.marenvres.2017.02.002 2023-10-07T23:10:41Z Many aquatic animals grow into colonies of repeated, genetically identical, modules (zooids). Zooid interconnections enable colonies to behave as integrated functional units, while plastic responses to environmental changes may affect individual zooids. Plasticity includes the variable partitioning of resources to sexual reproduction, colony growth and maintenance. Maintenance often involves regeneration, which is also a routine part of the life history in some organisms, such as bryozoans. Here we investigate changes in regenerative capacity in the encrusting bryozoan Cryptosula pallasiana when cultured at different seawater pCO2 levels. The proportion of active zooids showing polypide regeneration was highest at current oceanic pH (8.1), but decreased progressively as pH declined below that value, reaching a six-fold reduction at pH 7.0. The zone of budding of new zooids at the colony periphery declined in size below pH 7.7. Under elevated pCO2 conditions, already experienced sporadically in coastal areas, skeletal corrosion was accompanied by the proportional reallocation of resources from polypide regeneration in old zooids to the budding of new zooids at the edge of the colony. Thus, future ocean acidification can affect colonial organisms by changing how they allocate resources, with potentially profound impacts on life-history patterns and ecological interactions. -- Keywords : Phenotypic plasticity Resource allocation Climate change Ocean acidification Modular organism Bryozoa. Article in Journal/Newspaper Ocean acidification Université du Québec à Rimouski (UQAR): Sémaphore Marine Environmental Research 125 110 117 |
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Open Polar |
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Université du Québec à Rimouski (UQAR): Sémaphore |
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ftunivquebecar |
language |
French |
description |
Many aquatic animals grow into colonies of repeated, genetically identical, modules (zooids). Zooid interconnections enable colonies to behave as integrated functional units, while plastic responses to environmental changes may affect individual zooids. Plasticity includes the variable partitioning of resources to sexual reproduction, colony growth and maintenance. Maintenance often involves regeneration, which is also a routine part of the life history in some organisms, such as bryozoans. Here we investigate changes in regenerative capacity in the encrusting bryozoan Cryptosula pallasiana when cultured at different seawater pCO2 levels. The proportion of active zooids showing polypide regeneration was highest at current oceanic pH (8.1), but decreased progressively as pH declined below that value, reaching a six-fold reduction at pH 7.0. The zone of budding of new zooids at the colony periphery declined in size below pH 7.7. Under elevated pCO2 conditions, already experienced sporadically in coastal areas, skeletal corrosion was accompanied by the proportional reallocation of resources from polypide regeneration in old zooids to the budding of new zooids at the edge of the colony. Thus, future ocean acidification can affect colonial organisms by changing how they allocate resources, with potentially profound impacts on life-history patterns and ecological interactions. -- Keywords : Phenotypic plasticity Resource allocation Climate change Ocean acidification Modular organism Bryozoa. |
format |
Article in Journal/Newspaper |
author |
Lombardi, Chiara Taylor, Paul David Cocito, Silvia Bertolini, Camilla Calosi, Piero |
spellingShingle |
Lombardi, Chiara Taylor, Paul David Cocito, Silvia Bertolini, Camilla Calosi, Piero Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana |
author_facet |
Lombardi, Chiara Taylor, Paul David Cocito, Silvia Bertolini, Camilla Calosi, Piero |
author_sort |
Lombardi, Chiara |
title |
Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana |
title_short |
Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana |
title_full |
Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana |
title_fullStr |
Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana |
title_full_unstemmed |
Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana |
title_sort |
low ph conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan cryptosula pallasiana |
publishDate |
2017 |
url |
https://semaphore.uqar.ca/id/eprint/2341/ https://semaphore.uqar.ca/id/eprint/2341/1/Chiara_Lombardi_et_al_fevrier2017.pdf https://doi.org/10.1016/j.marenvres.2017.02.002 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://semaphore.uqar.ca/id/eprint/2341/1/Chiara_Lombardi_et_al_fevrier2017.pdf Lombardi, Chiara, Taylor, Paul David, Cocito, Silvia, Bertolini, Camilla et Calosi, Piero orcid:0000-0003-3378-2603 (2017). Low pH conditions impair module capacity to regenerate in a calcified colonial invertebrate, the bryozoan Cryptosula pallasiana. Marine Environmental Research, 125 . pp. 110-117. |
op_doi |
https://doi.org/10.1016/j.marenvres.2017.02.002 |
container_title |
Marine Environmental Research |
container_volume |
125 |
container_start_page |
110 |
op_container_end_page |
117 |
_version_ |
1781704286176018432 |