Coral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks

Many temperate reefs are experiencing a shift towards a greater abundance of tropical species in response to marine heatwaves and long-term ocean warming worldwide. Baseline data for coral communities growing in high-latitude reefs is required to better understand ecosystem changes over time. In thi...

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Autores principales:	Claire L. Ross, Ben French, Emily K. Lester, Shaun K. Wilson, Paul B. Day, Michael D. Taylor, Neville Barrett
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	tropicalization temperate reefs climate change long-term monitoring seawater temperature Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/ceb510867beb4f6ca2b1ec6654d7fcee
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spelling	oai:doaj.org-article:ceb510867beb4f6ca2b1ec6654d7fcee2021-11-25T17:22:38ZCoral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks10.3390/d131105541424-2818https://doaj.org/article/ceb510867beb4f6ca2b1ec6654d7fcee2021-10-01T00:00:00Zhttps://www.mdpi.com/1424-2818/13/11/554https://doaj.org/toc/1424-2818Many temperate reefs are experiencing a shift towards a greater abundance of tropical species in response to marine heatwaves and long-term ocean warming worldwide. Baseline data for coral communities growing in high-latitude reefs is required to better understand ecosystem changes over time. In this study, we explore spatial and temporal trends in the distribution of coral communities from 1999 to 2019 at 118 reef sites within the five marine parks located in the south-west of Western Australia (WA) between 30° to 35° S. Our estimates of coral cover were generally low (<5%), except for a few sites in Jurien Bay Marine Park and Rottnest Island Marine Reserve where coral cover was 10% to 30%. Interannual changes in genera assemblages were detected but were not consistent over time, whereas significant temporal increases in coral cover estimates were found at the lowest latitude site in Jurien Bay. Coral assemblages were primarily distinguished by <i>Turbinaria</i> spp. at Marmion Marine Park and Ngari Capes Marine Park, and <i>Pocillopora</i> spp. and <i>Dipsastraea</i> spp. at Rottnest Island and Jurien Bay. Our findings suggest that conditions in south-west WA are favorable to the ongoing survival of existing genera and there were minimal signs of expansion in coral cover at most study sites. Coral cover and composition on these reefs may, however, change with ongoing ocean warming and increased occurrence of marine heatwaves. This study provides a valuable benchmark for assessing future changes in coral assemblages and highlights the need for targeted hard-coral surveys to quantify subtle changes in high-latitude coral community assemblages.Claire L. RossBen FrenchEmily K. LesterShaun K. WilsonPaul B. DayMichael D. TaylorNeville BarrettMDPI AGarticletropicalizationtemperate reefsclimate changelong-term monitoringseawater temperatureBiology (General)QH301-705.5ENDiversity, Vol 13, Iss 554, p 554 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	tropicalization temperate reefs climate change long-term monitoring seawater temperature Biology (General) QH301-705.5
spellingShingle	tropicalization temperate reefs climate change long-term monitoring seawater temperature Biology (General) QH301-705.5 Claire L. Ross Ben French Emily K. Lester Shaun K. Wilson Paul B. Day Michael D. Taylor Neville Barrett Coral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks
description	Many temperate reefs are experiencing a shift towards a greater abundance of tropical species in response to marine heatwaves and long-term ocean warming worldwide. Baseline data for coral communities growing in high-latitude reefs is required to better understand ecosystem changes over time. In this study, we explore spatial and temporal trends in the distribution of coral communities from 1999 to 2019 at 118 reef sites within the five marine parks located in the south-west of Western Australia (WA) between 30° to 35° S. Our estimates of coral cover were generally low (<5%), except for a few sites in Jurien Bay Marine Park and Rottnest Island Marine Reserve where coral cover was 10% to 30%. Interannual changes in genera assemblages were detected but were not consistent over time, whereas significant temporal increases in coral cover estimates were found at the lowest latitude site in Jurien Bay. Coral assemblages were primarily distinguished by <i>Turbinaria</i> spp. at Marmion Marine Park and Ngari Capes Marine Park, and <i>Pocillopora</i> spp. and <i>Dipsastraea</i> spp. at Rottnest Island and Jurien Bay. Our findings suggest that conditions in south-west WA are favorable to the ongoing survival of existing genera and there were minimal signs of expansion in coral cover at most study sites. Coral cover and composition on these reefs may, however, change with ongoing ocean warming and increased occurrence of marine heatwaves. This study provides a valuable benchmark for assessing future changes in coral assemblages and highlights the need for targeted hard-coral surveys to quantify subtle changes in high-latitude coral community assemblages.
format	article
author	Claire L. Ross Ben French Emily K. Lester Shaun K. Wilson Paul B. Day Michael D. Taylor Neville Barrett
author_facet	Claire L. Ross Ben French Emily K. Lester Shaun K. Wilson Paul B. Day Michael D. Taylor Neville Barrett
author_sort	Claire L. Ross
title	Coral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks
title_short	Coral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks
title_full	Coral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks
title_fullStr	Coral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks
title_full_unstemmed	Coral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks
title_sort	coral communities on marginal high-latitude reefs in west australian marine parks
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ceb510867beb4f6ca2b1ec6654d7fcee
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Coral Communities on Marginal High-Latitude Reefs in West Australian Marine Parks

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