A decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef

Abstract Decreasing coral cover on the Great Barrier Reef (GBR) may provide opportunities for rapid growth and expansion of other taxa. The bioeroding sponges Cliona spp. are strong competitors for space and may take advantage of coral bleaching, damage, and mortality. Benthic surveys of the inshore...

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Autores principales:	Blake D. Ramsby, Mia O. Hoogenboom, Steve Whalan, Nicole S. Webster, Angus Thompson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e9f108e6d7ff4cc09cf000db12836cf4
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spelling	oai:doaj.org-article:e9f108e6d7ff4cc09cf000db12836cf42021-12-02T16:07:57ZA decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef10.1038/s41598-017-02196-z2045-2322https://doaj.org/article/e9f108e6d7ff4cc09cf000db12836cf42017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02196-zhttps://doaj.org/toc/2045-2322Abstract Decreasing coral cover on the Great Barrier Reef (GBR) may provide opportunities for rapid growth and expansion of other taxa. The bioeroding sponges Cliona spp. are strong competitors for space and may take advantage of coral bleaching, damage, and mortality. Benthic surveys of the inshore GBR (2005–2014) revealed that the percent cover of the most abundant bioeroding sponge species, Cliona orientalis, has not increased. However, considerable variation in C. orientalis cover, and change in cover over time, was evident between survey locations. We assessed whether biotic or environmental characteristics were associated with variation in C. orientalis distribution and abundance. The proportion of fine particles in the sediments was negatively associated with the presence-absence and the percent cover of C. orientalis, indicating that the sponge requires exposed habitat. The cover of corals and other sponges explained little variation in C. orientalis cover or distribution. The fastest increases in C. orientalis cover coincided with the lowest macroalgal cover and chlorophyll a concentration, highlighting the importance of macroalgal competition and local environmental conditions for this bioeroding sponge. Given the observed distribution and habitat preferences of C. orientalis, bioeroding sponges likely represent site-specific – rather than regional – threats to corals and reef accretion.Blake D. RamsbyMia O. HoogenboomSteve WhalanNicole S. WebsterAngus ThompsonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Blake D. Ramsby Mia O. Hoogenboom Steve Whalan Nicole S. Webster Angus Thompson A decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef
description	Abstract Decreasing coral cover on the Great Barrier Reef (GBR) may provide opportunities for rapid growth and expansion of other taxa. The bioeroding sponges Cliona spp. are strong competitors for space and may take advantage of coral bleaching, damage, and mortality. Benthic surveys of the inshore GBR (2005–2014) revealed that the percent cover of the most abundant bioeroding sponge species, Cliona orientalis, has not increased. However, considerable variation in C. orientalis cover, and change in cover over time, was evident between survey locations. We assessed whether biotic or environmental characteristics were associated with variation in C. orientalis distribution and abundance. The proportion of fine particles in the sediments was negatively associated with the presence-absence and the percent cover of C. orientalis, indicating that the sponge requires exposed habitat. The cover of corals and other sponges explained little variation in C. orientalis cover or distribution. The fastest increases in C. orientalis cover coincided with the lowest macroalgal cover and chlorophyll a concentration, highlighting the importance of macroalgal competition and local environmental conditions for this bioeroding sponge. Given the observed distribution and habitat preferences of C. orientalis, bioeroding sponges likely represent site-specific – rather than regional – threats to corals and reef accretion.
format	article
author	Blake D. Ramsby Mia O. Hoogenboom Steve Whalan Nicole S. Webster Angus Thompson
author_facet	Blake D. Ramsby Mia O. Hoogenboom Steve Whalan Nicole S. Webster Angus Thompson
author_sort	Blake D. Ramsby
title	A decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef
title_short	A decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef
title_full	A decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef
title_fullStr	A decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef
title_full_unstemmed	A decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef
title_sort	decadal analysis of bioeroding sponge cover on the inshore great barrier reef
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e9f108e6d7ff4cc09cf000db12836cf4
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A decadal analysis of bioeroding sponge cover on the inshore Great Barrier Reef

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