Contrasting metabolic strategies of two co-occurring deep-sea octocorals

Abstract The feeding biology of deep-sea octocorals remains poorly understood, as attention is more often directed to reef building corals. The present study focused on two common deep-water octocoral species in the Azores Archipelago, Dentomuricea aff. meteor and Viminella flagellum, aiming at dete...

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Autores principales:	M. Rakka, S. R. Maier, D. Van Oevelen, A. Godinho, M. Bilan, C. Orejas, M. Carreiro-Silva
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/15c8e3ab49624ba78070997daf5a8edb
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spelling	oai:doaj.org-article:15c8e3ab49624ba78070997daf5a8edb2021-12-02T14:58:38ZContrasting metabolic strategies of two co-occurring deep-sea octocorals10.1038/s41598-021-90134-52045-2322https://doaj.org/article/15c8e3ab49624ba78070997daf5a8edb2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90134-5https://doaj.org/toc/2045-2322Abstract The feeding biology of deep-sea octocorals remains poorly understood, as attention is more often directed to reef building corals. The present study focused on two common deep-water octocoral species in the Azores Archipelago, Dentomuricea aff. meteor and Viminella flagellum, aiming at determining their ability to exploit different food sources. We adopted an experimental approach, with three different food sources, including live phytoplankton, live zooplankton and dissolved organic matter (DOM), that were artificially enriched with 13C and 15N (C and N tracers). The presence of tracers was subsequently followed in the coral tissue, C respiration and particulate organic C and N (POC and PON) release. In both species, feeding with zooplankton resulted in significantly higher incorporation of tracers in all measured variables, compared to the other food sources, highlighting the importance of zooplankton for major physiological processes. Our results revealed contrasting metabolic strategies between the two species, with D. aff. meteor acquiring higher amounts of prey and allocating higher percentage to respiration and release of POC and PON than V. flagellum. Such metabolic differences can shape species fitness and distributions and have further ecological implications on the ecosystem function of communities formed by different octocoral species.M. RakkaS. R. MaierD. Van OevelenA. GodinhoM. BilanC. OrejasM. Carreiro-SilvaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q M. Rakka S. R. Maier D. Van Oevelen A. Godinho M. Bilan C. Orejas M. Carreiro-Silva Contrasting metabolic strategies of two co-occurring deep-sea octocorals
description	Abstract The feeding biology of deep-sea octocorals remains poorly understood, as attention is more often directed to reef building corals. The present study focused on two common deep-water octocoral species in the Azores Archipelago, Dentomuricea aff. meteor and Viminella flagellum, aiming at determining their ability to exploit different food sources. We adopted an experimental approach, with three different food sources, including live phytoplankton, live zooplankton and dissolved organic matter (DOM), that were artificially enriched with 13C and 15N (C and N tracers). The presence of tracers was subsequently followed in the coral tissue, C respiration and particulate organic C and N (POC and PON) release. In both species, feeding with zooplankton resulted in significantly higher incorporation of tracers in all measured variables, compared to the other food sources, highlighting the importance of zooplankton for major physiological processes. Our results revealed contrasting metabolic strategies between the two species, with D. aff. meteor acquiring higher amounts of prey and allocating higher percentage to respiration and release of POC and PON than V. flagellum. Such metabolic differences can shape species fitness and distributions and have further ecological implications on the ecosystem function of communities formed by different octocoral species.
format	article
author	M. Rakka S. R. Maier D. Van Oevelen A. Godinho M. Bilan C. Orejas M. Carreiro-Silva
author_facet	M. Rakka S. R. Maier D. Van Oevelen A. Godinho M. Bilan C. Orejas M. Carreiro-Silva
author_sort	M. Rakka
title	Contrasting metabolic strategies of two co-occurring deep-sea octocorals
title_short	Contrasting metabolic strategies of two co-occurring deep-sea octocorals
title_full	Contrasting metabolic strategies of two co-occurring deep-sea octocorals
title_fullStr	Contrasting metabolic strategies of two co-occurring deep-sea octocorals
title_full_unstemmed	Contrasting metabolic strategies of two co-occurring deep-sea octocorals
title_sort	contrasting metabolic strategies of two co-occurring deep-sea octocorals
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/15c8e3ab49624ba78070997daf5a8edb
work_keys_str_mv	AT mrakka contrastingmetabolicstrategiesoftwocooccurringdeepseaoctocorals AT srmaier contrastingmetabolicstrategiesoftwocooccurringdeepseaoctocorals AT dvanoevelen contrastingmetabolicstrategiesoftwocooccurringdeepseaoctocorals AT agodinho contrastingmetabolicstrategiesoftwocooccurringdeepseaoctocorals AT mbilan contrastingmetabolicstrategiesoftwocooccurringdeepseaoctocorals AT corejas contrastingmetabolicstrategiesoftwocooccurringdeepseaoctocorals AT mcarreirosilva contrastingmetabolicstrategiesoftwocooccurringdeepseaoctocorals
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Contrasting metabolic strategies of two co-occurring deep-sea octocorals

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