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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fttriple:oai:gotriple.eu:10670/1.2zyc48 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) 2020-01-01 https://doi.org/10.1007/s00227-019-3615-0 https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 en eng HAL CCSD Springer Verlag hal-02891826 doi:10.1007/s00227-019-3615-0 10670/1.2zyc48 https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology Marine Biology, Springer Verlag, 2020, 167 (1), ⟨10.1007/s00227-019-3615-0⟩ envir socio Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.1007/s00227-019-3615-0 2023-01-22T16:49:20Z 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 Unknown Marine Biology 167 1 |
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envir socio 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 |
envir socio |
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://doi.org/10.1007/s00227-019-3615-0 https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology Marine Biology, Springer Verlag, 2020, 167 (1), ⟨10.1007/s00227-019-3615-0⟩ |
op_relation |
hal-02891826 doi:10.1007/s00227-019-3615-0 10670/1.2zyc48 https://hal-univ-perp.archives-ouvertes.fr/hal-02891826 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1007/s00227-019-3615-0 |
container_title |
Marine Biology |
container_volume |
167 |
container_issue |
1 |
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1766158683354431488 |