Elevated temperature, but not acidification, reduces fertilization success in the small giant clam, Tridacna maxima
International audience Elevated temperature and decreased ocean pH (ocean acidification) are associated with anthropogenic climate change and can adversely affect fertilization and development in marine invertebrates. However, the potential synergistic impact of these stressors on fertilization succ...
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ftccsdartic:oai:HAL:hal-02891826v1 2023-05-15T17:51:31+02:00 Elevated temperature, but not acidification, reduces fertilization success in the small giant clam, Tridacna maxima Armstrong, Eric Dubousquet, Vaimiti Mills, Suzanne Stillman, Jonathon Department of Integrative Biology Berkeley (IB) University of California Berkeley University of California-University of California Université de la Polynésie Française (UPF) Centre de recherches insulaires et observatoire de l'environnement (CRIOBE) Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 2020-01 https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 https://doi.org/10.1007/s00227-019-3615-0 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-019-3615-0 hal-02891826 https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 doi:10.1007/s00227-019-3615-0 ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 Marine Biology, Springer Verlag, 2020, 167 (1), ⟨10.1007/s00227-019-3615-0⟩ [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2020 ftccsdartic https://doi.org/10.1007/s00227-019-3615-0 2021-11-21T00:41:49Z International audience Elevated temperature and decreased ocean pH (ocean acidification) are associated with anthropogenic climate change and can adversely affect fertilization and development in marine invertebrates. However, the potential synergistic impact of these stressors on fertilization success remains unresolved for many ecologically and economically important species including giant clams of the genus Tridacna. Individual and interactive effects of warming and acidification on fertilization (successful first cleavage) were investigated in the small giant clam, Tridacna maxima. Experiments were performed on gametes of T. maxima (collected in October 2015 from the island of Moorea, French Polynesia; 17.54° S, 149.83° W) fertilized under ambient conditions (27 °C, pH 8.1) and under conditions congruent with temperature and pH projections for the coming century (31 °C, pH 7.6). Fertilization success was low, but within previously reported levels, under ambient conditions (47.7 ± 3.4%) and was significantly reduced at elevated temperature per se and in combination with lowered pH (18.5 ± 4.4% and 21.2 ± 4.6%, respectively). However, acidification alone had no effect on fertilization success in T. maxima (48.2 ± 3.1%). These results indicate that although fertilization in T. maxima is resilient to lowered pH, it is strongly inhibited by elevated temperature. Populations of T. maxima may, therefore, be at risk of low reproductive success over the coming century as a result of rising ocean temperature. Article in Journal/Newspaper Ocean acidification Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Marine Biology 167 1 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes Armstrong, Eric Dubousquet, Vaimiti Mills, Suzanne Stillman, Jonathon Elevated temperature, but not acidification, reduces fertilization success in the small giant clam, Tridacna maxima |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience Elevated temperature and decreased ocean pH (ocean acidification) are associated with anthropogenic climate change and can adversely affect fertilization and development in marine invertebrates. However, the potential synergistic impact of these stressors on fertilization success remains unresolved for many ecologically and economically important species including giant clams of the genus Tridacna. Individual and interactive effects of warming and acidification on fertilization (successful first cleavage) were investigated in the small giant clam, Tridacna maxima. Experiments were performed on gametes of T. maxima (collected in October 2015 from the island of Moorea, French Polynesia; 17.54° S, 149.83° W) fertilized under ambient conditions (27 °C, pH 8.1) and under conditions congruent with temperature and pH projections for the coming century (31 °C, pH 7.6). Fertilization success was low, but within previously reported levels, under ambient conditions (47.7 ± 3.4%) and was significantly reduced at elevated temperature per se and in combination with lowered pH (18.5 ± 4.4% and 21.2 ± 4.6%, respectively). However, acidification alone had no effect on fertilization success in T. maxima (48.2 ± 3.1%). These results indicate that although fertilization in T. maxima is resilient to lowered pH, it is strongly inhibited by elevated temperature. Populations of T. maxima may, therefore, be at risk of low reproductive success over the coming century as a result of rising ocean temperature. |
author2 |
Department of Integrative Biology Berkeley (IB) University of California Berkeley University of California-University of California Université de la Polynésie Française (UPF) Centre de recherches insulaires et observatoire de l'environnement (CRIOBE) Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Armstrong, Eric Dubousquet, Vaimiti Mills, Suzanne Stillman, Jonathon |
author_facet |
Armstrong, Eric Dubousquet, Vaimiti Mills, Suzanne Stillman, Jonathon |
author_sort |
Armstrong, Eric |
title |
Elevated temperature, but not acidification, reduces fertilization success in the small giant clam, Tridacna maxima |
title_short |
Elevated temperature, but not acidification, reduces fertilization success in the small giant clam, Tridacna maxima |
title_full |
Elevated temperature, but not acidification, reduces fertilization success in the small giant clam, Tridacna maxima |
title_fullStr |
Elevated temperature, but not acidification, reduces fertilization success in the small giant clam, Tridacna maxima |
title_full_unstemmed |
Elevated temperature, but not acidification, reduces fertilization success in the small giant clam, Tridacna maxima |
title_sort |
elevated temperature, but not acidification, reduces fertilization success in the small giant clam, tridacna maxima |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 https://doi.org/10.1007/s00227-019-3615-0 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 Marine Biology, Springer Verlag, 2020, 167 (1), ⟨10.1007/s00227-019-3615-0⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-019-3615-0 hal-02891826 https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 doi:10.1007/s00227-019-3615-0 |
op_doi |
https://doi.org/10.1007/s00227-019-3615-0 |
container_title |
Marine Biology |
container_volume |
167 |
container_issue |
1 |
_version_ |
1766158693498355712 |