The effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion

Biological invasions represent a threat to ecosystems, through competition and habitat destruction, which may result in significant changes of the invaded community. Asparagopsis armata Harvey 1855 is a red macroalgae (Rodophyta) globally recognized as an invasive species. It is found from the inter...

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Autores principales:	Carla O. Silva, Marco F.L. Lemos, Rui Gaspar, Carlos Gonçalves, João M. Neto
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Macroalgae Biodiversity Intertidal assemblages Marine invasion Non-indigenous species (NIS) Atlantic European coast Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/927782e7e4504d89b1833644fe3d108d
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spelling	oai:doaj.org-article:927782e7e4504d89b1833644fe3d108d2021-12-01T04:46:46ZThe effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion1470-160X10.1016/j.ecolind.2021.107463https://doaj.org/article/927782e7e4504d89b1833644fe3d108d2021-06-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X2100128Xhttps://doaj.org/toc/1470-160XBiological invasions represent a threat to ecosystems, through competition and habitat destruction, which may result in significant changes of the invaded community. Asparagopsis armata Harvey 1855 is a red macroalgae (Rodophyta) globally recognized as an invasive species. It is found from the intertidal to shallow subtidal areas, on rock or epiphytic, forming natural vegetation belts on exposed coasts. This study evaluated the variations on native intertidal seaweed and macroinvertebrate assemblages inhabiting rock pools with and without the presence of the invasive macroalgae A. armata. To achieve this, manipulation experiments on Atlantic (Portugal) rock pools were done. Three rock pools were maintained without A. armata by manual removal of macroalgae, and three others were not experimentally manipulated during the study period and A. armata was freely present. In this study the variations between different rock pools were assessed. Results showed different patterns in the macroalgae composition of assemblages but not for the macrobenthic communities. Ellisolandia elongata (J. Ellis & Solander) K.R. Hind & G.W. Saunders 2013 was the main algal species affected by the invasion of A. armata. Invaded pools tended to show less macroalgal species richness, showing a more constant and conservative structure, with lower variation of its taxonomic composition than the pools not containing A. armata, where the variability between samples was always higher. Despite the importance of the achieved results, further data based on observation of long-term series are needed, in order to further understand more severe effects of the invader A. armata on native macroalgal assemblage.Carla O. SilvaMarco F.L. LemosRui GasparCarlos GonçalvesJoão M. NetoElsevierarticleMacroalgaeBiodiversityIntertidal assemblagesMarine invasionNon-indigenous species (NIS)Atlantic European coastEcologyQH540-549.5ENEcological Indicators, Vol 125, Iss , Pp 107463- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Macroalgae Biodiversity Intertidal assemblages Marine invasion Non-indigenous species (NIS) Atlantic European coast Ecology QH540-549.5
spellingShingle	Macroalgae Biodiversity Intertidal assemblages Marine invasion Non-indigenous species (NIS) Atlantic European coast Ecology QH540-549.5 Carla O. Silva Marco F.L. Lemos Rui Gaspar Carlos Gonçalves João M. Neto The effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion
description	Biological invasions represent a threat to ecosystems, through competition and habitat destruction, which may result in significant changes of the invaded community. Asparagopsis armata Harvey 1855 is a red macroalgae (Rodophyta) globally recognized as an invasive species. It is found from the intertidal to shallow subtidal areas, on rock or epiphytic, forming natural vegetation belts on exposed coasts. This study evaluated the variations on native intertidal seaweed and macroinvertebrate assemblages inhabiting rock pools with and without the presence of the invasive macroalgae A. armata. To achieve this, manipulation experiments on Atlantic (Portugal) rock pools were done. Three rock pools were maintained without A. armata by manual removal of macroalgae, and three others were not experimentally manipulated during the study period and A. armata was freely present. In this study the variations between different rock pools were assessed. Results showed different patterns in the macroalgae composition of assemblages but not for the macrobenthic communities. Ellisolandia elongata (J. Ellis & Solander) K.R. Hind & G.W. Saunders 2013 was the main algal species affected by the invasion of A. armata. Invaded pools tended to show less macroalgal species richness, showing a more constant and conservative structure, with lower variation of its taxonomic composition than the pools not containing A. armata, where the variability between samples was always higher. Despite the importance of the achieved results, further data based on observation of long-term series are needed, in order to further understand more severe effects of the invader A. armata on native macroalgal assemblage.
format	article
author	Carla O. Silva Marco F.L. Lemos Rui Gaspar Carlos Gonçalves João M. Neto
author_facet	Carla O. Silva Marco F.L. Lemos Rui Gaspar Carlos Gonçalves João M. Neto
author_sort	Carla O. Silva
title	The effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion
title_short	The effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion
title_full	The effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion
title_fullStr	The effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion
title_full_unstemmed	The effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion
title_sort	effects of the invasive seaweed asparagopsis armata on native rock pool communities: evidences from experimental exclusion
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/927782e7e4504d89b1833644fe3d108d
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The effects of the invasive seaweed Asparagopsis armata on native rock pool communities: Evidences from experimental exclusion

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