Comparison of the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in coral Acropora digitifera
Summary Global warming (GW) and ocean acidification (OA) have been recognized as severe threats for reef-building corals that support coral reef ecosystems, but these effects on the early life history stage of corals are relatively unknown compared with the effects on calcification of adult corals....
Published in: | Zygote |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2014
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0967199414000185 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0967199414000185 |
id |
crcambridgeupr:10.1017/s0967199414000185 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0967199414000185 2024-06-23T07:55:52+00:00 Comparison of the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in coral Acropora digitifera Iguchi, Akira Suzuki, Atsushi Sakai, Kazuhiko Nojiri, Yukihiro 2014 http://dx.doi.org/10.1017/s0967199414000185 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0967199414000185 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Zygote volume 23, issue 4, page 631-634 ISSN 0967-1994 1469-8730 journal-article 2014 crcambridgeupr https://doi.org/10.1017/s0967199414000185 2024-06-05T04:04:56Z Summary Global warming (GW) and ocean acidification (OA) have been recognized as severe threats for reef-building corals that support coral reef ecosystems, but these effects on the early life history stage of corals are relatively unknown compared with the effects on calcification of adult corals. In this study, we evaluated the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in a reef-building coral, Acropora digitifera. The fertilization rates of A. digitifera decreased in response to thermal stress compared with those under normal seawater conditions. In contrast, the changes of fertilization rates were not evident in the acidified seawater. Generalized Linear Mixed Model (GLMM) predicted that sperm/egg crosses and temperature were explanatory variables in the best-fitted model for the fertilization data. In the best model, interactions between thermal stress and acidified seawater on the fertilization rates were not selected. Our results suggested that coral fertilization is more sensitive to future GW than OA. Taking into consideration the previous finding that sperm motility of A. digitifera was decreased by acidified seawater, the decrease in coral cover followed by that of sperm concentration might cause the interacting effects of GW and OA on coral fertilization. Article in Journal/Newspaper Ocean acidification Cambridge University Press Zygote 23 4 631 634 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Summary Global warming (GW) and ocean acidification (OA) have been recognized as severe threats for reef-building corals that support coral reef ecosystems, but these effects on the early life history stage of corals are relatively unknown compared with the effects on calcification of adult corals. In this study, we evaluated the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in a reef-building coral, Acropora digitifera. The fertilization rates of A. digitifera decreased in response to thermal stress compared with those under normal seawater conditions. In contrast, the changes of fertilization rates were not evident in the acidified seawater. Generalized Linear Mixed Model (GLMM) predicted that sperm/egg crosses and temperature were explanatory variables in the best-fitted model for the fertilization data. In the best model, interactions between thermal stress and acidified seawater on the fertilization rates were not selected. Our results suggested that coral fertilization is more sensitive to future GW than OA. Taking into consideration the previous finding that sperm motility of A. digitifera was decreased by acidified seawater, the decrease in coral cover followed by that of sperm concentration might cause the interacting effects of GW and OA on coral fertilization. |
format |
Article in Journal/Newspaper |
author |
Iguchi, Akira Suzuki, Atsushi Sakai, Kazuhiko Nojiri, Yukihiro |
spellingShingle |
Iguchi, Akira Suzuki, Atsushi Sakai, Kazuhiko Nojiri, Yukihiro Comparison of the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in coral Acropora digitifera |
author_facet |
Iguchi, Akira Suzuki, Atsushi Sakai, Kazuhiko Nojiri, Yukihiro |
author_sort |
Iguchi, Akira |
title |
Comparison of the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in coral Acropora digitifera |
title_short |
Comparison of the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in coral Acropora digitifera |
title_full |
Comparison of the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in coral Acropora digitifera |
title_fullStr |
Comparison of the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in coral Acropora digitifera |
title_full_unstemmed |
Comparison of the effects of thermal stress and CO 2 -driven acidified seawater on fertilization in coral Acropora digitifera |
title_sort |
comparison of the effects of thermal stress and co 2 -driven acidified seawater on fertilization in coral acropora digitifera |
publisher |
Cambridge University Press (CUP) |
publishDate |
2014 |
url |
http://dx.doi.org/10.1017/s0967199414000185 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0967199414000185 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Zygote volume 23, issue 4, page 631-634 ISSN 0967-1994 1469-8730 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0967199414000185 |
container_title |
Zygote |
container_volume |
23 |
container_issue |
4 |
container_start_page |
631 |
op_container_end_page |
634 |
_version_ |
1802648646988070912 |