Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis

Abstract Siliceous sponges have survived pre-historical mass extinction events caused by ocean acidification and recent studies suggest that siliceous sponges will continue to resist predicted increases in ocean acidity. In this study, we monitored silica biomineralization in the Hawaiian sponge Myc...

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Published in:ICES Journal of Marine Science
Main Authors: Vicente, Jan, Silbiger, Nyssa J., Beckley, Billie A., Raczkowski, Charles W., Hill, Russell T.
Format: Article in Journal/Newspaper
Language:English
Published: Oxford University Press (OUP) 2015
Subjects:
Online Access:http://dx.doi.org/10.1093/icesjms/fsv235
http://academic.oup.com/icesjms/article-pdf/73/3/704/31231043/fsv235.pdf
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spelling croxfordunivpr:10.1093/icesjms/fsv235 2024-06-23T07:55:50+00:00 Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis Vicente, Jan Silbiger, Nyssa J. Beckley, Billie A. Raczkowski, Charles W. Hill, Russell T. 2015 http://dx.doi.org/10.1093/icesjms/fsv235 http://academic.oup.com/icesjms/article-pdf/73/3/704/31231043/fsv235.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 73, issue 3, page 704-714 ISSN 1095-9289 1054-3139 journal-article 2015 croxfordunivpr https://doi.org/10.1093/icesjms/fsv235 2024-06-11T04:19:40Z Abstract Siliceous sponges have survived pre-historical mass extinction events caused by ocean acidification and recent studies suggest that siliceous sponges will continue to resist predicted increases in ocean acidity. In this study, we monitored silica biomineralization in the Hawaiian sponge Mycale grandis under predicted pCO2 and sea surface temperature scenarios for 2100. Our goal was to determine if spicule biomineralization was enhanced or repressed by ocean acidification and thermal stress by monitoring silica uptake rates during short-term (48 h) experiments and comparing biomineralized tissue ratios before and after a long-term (26 d) experiment. In the short-term experiment, we found that silica uptake rates were not impacted by high pCO2 (1050 µatm), warmer temperatures (27°C), or combined high pCO2 with warmer temperature (1119 µatm; 27°C) treatments. The long-term exposure experiments revealed no effect on survival or growth rates of M. grandis to high pCO2 (1198 µatm), warmer temperatures (25.6°C), or combined high pCO2 with warmer temperature (1225 µatm, 25.7°C) treatments, indicating that M. grandis will continue to prosper under predicted increases in pCO2 and sea surface temperature. However, ash-free dry weight to dry weight ratios, subtylostyle lengths, and silicified weight to dry weight ratios decreased under conditions of high pCO2 and combined pCO2 warmer temperature treatments. Our results show that rising ocean acidity and temperature have marginal negative effects on spicule biomineralization and will not affect sponge survival rates of M. grandis. Article in Journal/Newspaper Ocean acidification Oxford University Press ICES Journal of Marine Science 73 3 704 714
institution Open Polar
collection Oxford University Press
op_collection_id croxfordunivpr
language English
description Abstract Siliceous sponges have survived pre-historical mass extinction events caused by ocean acidification and recent studies suggest that siliceous sponges will continue to resist predicted increases in ocean acidity. In this study, we monitored silica biomineralization in the Hawaiian sponge Mycale grandis under predicted pCO2 and sea surface temperature scenarios for 2100. Our goal was to determine if spicule biomineralization was enhanced or repressed by ocean acidification and thermal stress by monitoring silica uptake rates during short-term (48 h) experiments and comparing biomineralized tissue ratios before and after a long-term (26 d) experiment. In the short-term experiment, we found that silica uptake rates were not impacted by high pCO2 (1050 µatm), warmer temperatures (27°C), or combined high pCO2 with warmer temperature (1119 µatm; 27°C) treatments. The long-term exposure experiments revealed no effect on survival or growth rates of M. grandis to high pCO2 (1198 µatm), warmer temperatures (25.6°C), or combined high pCO2 with warmer temperature (1225 µatm, 25.7°C) treatments, indicating that M. grandis will continue to prosper under predicted increases in pCO2 and sea surface temperature. However, ash-free dry weight to dry weight ratios, subtylostyle lengths, and silicified weight to dry weight ratios decreased under conditions of high pCO2 and combined pCO2 warmer temperature treatments. Our results show that rising ocean acidity and temperature have marginal negative effects on spicule biomineralization and will not affect sponge survival rates of M. grandis.
format Article in Journal/Newspaper
author Vicente, Jan
Silbiger, Nyssa J.
Beckley, Billie A.
Raczkowski, Charles W.
Hill, Russell T.
spellingShingle Vicente, Jan
Silbiger, Nyssa J.
Beckley, Billie A.
Raczkowski, Charles W.
Hill, Russell T.
Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis
author_facet Vicente, Jan
Silbiger, Nyssa J.
Beckley, Billie A.
Raczkowski, Charles W.
Hill, Russell T.
author_sort Vicente, Jan
title Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis
title_short Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis
title_full Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis
title_fullStr Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis
title_full_unstemmed Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis
title_sort impact of high pco2 and warmer temperatures on the process of silica biomineralization in the sponge mycale grandis
publisher Oxford University Press (OUP)
publishDate 2015
url http://dx.doi.org/10.1093/icesjms/fsv235
http://academic.oup.com/icesjms/article-pdf/73/3/704/31231043/fsv235.pdf
genre Ocean acidification
genre_facet Ocean acidification
op_source ICES Journal of Marine Science
volume 73, issue 3, page 704-714
ISSN 1095-9289 1054-3139
op_doi https://doi.org/10.1093/icesjms/fsv235
container_title ICES Journal of Marine Science
container_volume 73
container_issue 3
container_start_page 704
op_container_end_page 714
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