Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)

Abstract This study aims to map the occurrence and distribution of Madrepora oculata and to quantify density and colony sizes across recently discovered coral mounds off Angola. Despite the fact that the Angolan populations of M. oculata thrive under extreme hypoxic conditions within the local oxyge...

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Autores principales:	Covadonga Orejas, Claudia Wienberg, Jürgen Titschack, Leonardo Tamborrino, André Freiwald, Dierk Hebbeln
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/28c753d2b85b4751ac0b20717e20fc01
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spelling	oai:doaj.org-article:28c753d2b85b4751ac0b20717e20fc012021-12-02T16:24:52ZMadrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)10.1038/s41598-021-94579-62045-2322https://doaj.org/article/28c753d2b85b4751ac0b20717e20fc012021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94579-6https://doaj.org/toc/2045-2322Abstract This study aims to map the occurrence and distribution of Madrepora oculata and to quantify density and colony sizes across recently discovered coral mounds off Angola. Despite the fact that the Angolan populations of M. oculata thrive under extreme hypoxic conditions within the local oxygen minimum zone, they reveal colonies with remarkable heights of up to 1250 mm—which are the tallest colonies ever recorded for this species—and average densities of 0.53 ± 0.37 (SD) colonies m−2. This is particularly noteworthy as these values are comparable to those documented in areas without any oxygen constraints. The results of this study show that the distribution pattern documented for M. oculata appear to be linked to the specific regional environmental conditions off Angola, which have been recorded in the direct vicinity of the thriving coral community. Additionally, an estimated average colony age of 95 ± 76 (SD) years (total estimated age range: 16–369 years) indicates relatively old M. oculata populations colonizing the Angolan coral mounds. Finally, the characteristics of the Angolan populations are benchmarked and discussed in the light of the existing knowledge on M. oculata gained from the North Atlantic and Mediterranean Sea.Covadonga OrejasClaudia WienbergJürgen TitschackLeonardo TamborrinoAndré FreiwaldDierk HebbelnNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Covadonga Orejas Claudia Wienberg Jürgen Titschack Leonardo Tamborrino André Freiwald Dierk Hebbeln Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)
description	Abstract This study aims to map the occurrence and distribution of Madrepora oculata and to quantify density and colony sizes across recently discovered coral mounds off Angola. Despite the fact that the Angolan populations of M. oculata thrive under extreme hypoxic conditions within the local oxygen minimum zone, they reveal colonies with remarkable heights of up to 1250 mm—which are the tallest colonies ever recorded for this species—and average densities of 0.53 ± 0.37 (SD) colonies m−2. This is particularly noteworthy as these values are comparable to those documented in areas without any oxygen constraints. The results of this study show that the distribution pattern documented for M. oculata appear to be linked to the specific regional environmental conditions off Angola, which have been recorded in the direct vicinity of the thriving coral community. Additionally, an estimated average colony age of 95 ± 76 (SD) years (total estimated age range: 16–369 years) indicates relatively old M. oculata populations colonizing the Angolan coral mounds. Finally, the characteristics of the Angolan populations are benchmarked and discussed in the light of the existing knowledge on M. oculata gained from the North Atlantic and Mediterranean Sea.
format	article
author	Covadonga Orejas Claudia Wienberg Jürgen Titschack Leonardo Tamborrino André Freiwald Dierk Hebbeln
author_facet	Covadonga Orejas Claudia Wienberg Jürgen Titschack Leonardo Tamborrino André Freiwald Dierk Hebbeln
author_sort	Covadonga Orejas
title	Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)
title_short	Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)
title_full	Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)
title_fullStr	Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)
title_full_unstemmed	Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)
title_sort	madrepora oculata forms large frameworks in hypoxic waters off angola (se atlantic)
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/28c753d2b85b4751ac0b20717e20fc01
work_keys_str_mv	AT covadongaorejas madreporaoculataformslargeframeworksinhypoxicwatersoffangolaseatlantic AT claudiawienberg madreporaoculataformslargeframeworksinhypoxicwatersoffangolaseatlantic AT jurgentitschack madreporaoculataformslargeframeworksinhypoxicwatersoffangolaseatlantic AT leonardotamborrino madreporaoculataformslargeframeworksinhypoxicwatersoffangolaseatlantic AT andrefreiwald madreporaoculataformslargeframeworksinhypoxicwatersoffangolaseatlantic AT dierkhebbeln madreporaoculataformslargeframeworksinhypoxicwatersoffangolaseatlantic
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Madrepora oculata forms large frameworks in hypoxic waters off Angola (SE Atlantic)

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