A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones

Abstract The decline of coral reefs has fueled interest in determining whether mesophotic reefs can shield against disturbances and help replenish deteriorated shallower reefs. In this study, we characterized spatial (horizontal and vertical) and seasonal patterns of diversity in coral recruits from...

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Autores principales:	Derek Soto, Stéphane DePalmas, Ming‐Jay Ho, Vianney Denis, Chaolun Allen Chen
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	barcoding diversity recruitment refuge settlement Taiwan Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/ed0c4b97ecea479395dea976f26c8e24
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spelling	oai:doaj.org-article:ed0c4b97ecea479395dea976f26c8e242021-11-08T17:10:40ZA molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones2045-775810.1002/ece3.8122https://doaj.org/article/ed0c4b97ecea479395dea976f26c8e242021-11-01T00:00:00Zhttps://doi.org/10.1002/ece3.8122https://doaj.org/toc/2045-7758Abstract The decline of coral reefs has fueled interest in determining whether mesophotic reefs can shield against disturbances and help replenish deteriorated shallower reefs. In this study, we characterized spatial (horizontal and vertical) and seasonal patterns of diversity in coral recruits from Dabaisha and Guiwan reefs at Ludao, Taiwan. Concrete blocks supporting terra‐cotta tiles were placed at shallow (15m) and mesophotic (40m) depths, during 2016–2018. Half of the tiles were retrieved and replaced biannually over three 6‐month surveys (short‐term); the remainder retrieved at the end of the 18‐month (long‐term) survey. 451 recruits were located using fluorescent censusing and identified by DNA barcoding. Barcoding the mitochondrial cytochrome oxidase I (COI) gene resulted in 17 molecular operational taxonomic units (MOTUs). To obtain taxonomic resolution to the generic level, Pocillopora were phylotyped using the mitochondrial open reading frame (ORF), resolving eight MOTUs. Acropora, Isopora, and Montipora recruits were identified by the nuclear PaxC intron, yielding ten MOTUs. Overall, 35 MOTUs were generated and were comprised primarily of Pocillopora and, in fewer numbers, Acropora, Isopora, Pavona, Montipora, Stylophora, among others. 40% of MOTUs recruited solely within mesophotic reefs while 20% were shared by both depth zones. MOTUs recruiting across a broad depth distribution appear consistent with the hypothesis of mesophotic reefs acting as a refuge for shallow‐water coral reefs. In contrast, Acropora and Isopora MOTUs were structured across depth zones representing an exception to this hypothesis. This research provides an imperative assessment of coral recruitment in understudied mesophotic reefs and imparts insight into the refuge hypothesis.Derek SotoStéphane DePalmasMing‐Jay HoVianney DenisChaolun Allen ChenWileyarticlebarcodingdiversityrecruitmentrefugesettlementTaiwanEcologyQH540-549.5ENEcology and Evolution, Vol 11, Iss 21, Pp 14573-14584 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	barcoding diversity recruitment refuge settlement Taiwan Ecology QH540-549.5
spellingShingle	barcoding diversity recruitment refuge settlement Taiwan Ecology QH540-549.5 Derek Soto Stéphane DePalmas Ming‐Jay Ho Vianney Denis Chaolun Allen Chen A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones
description	Abstract The decline of coral reefs has fueled interest in determining whether mesophotic reefs can shield against disturbances and help replenish deteriorated shallower reefs. In this study, we characterized spatial (horizontal and vertical) and seasonal patterns of diversity in coral recruits from Dabaisha and Guiwan reefs at Ludao, Taiwan. Concrete blocks supporting terra‐cotta tiles were placed at shallow (15m) and mesophotic (40m) depths, during 2016–2018. Half of the tiles were retrieved and replaced biannually over three 6‐month surveys (short‐term); the remainder retrieved at the end of the 18‐month (long‐term) survey. 451 recruits were located using fluorescent censusing and identified by DNA barcoding. Barcoding the mitochondrial cytochrome oxidase I (COI) gene resulted in 17 molecular operational taxonomic units (MOTUs). To obtain taxonomic resolution to the generic level, Pocillopora were phylotyped using the mitochondrial open reading frame (ORF), resolving eight MOTUs. Acropora, Isopora, and Montipora recruits were identified by the nuclear PaxC intron, yielding ten MOTUs. Overall, 35 MOTUs were generated and were comprised primarily of Pocillopora and, in fewer numbers, Acropora, Isopora, Pavona, Montipora, Stylophora, among others. 40% of MOTUs recruited solely within mesophotic reefs while 20% were shared by both depth zones. MOTUs recruiting across a broad depth distribution appear consistent with the hypothesis of mesophotic reefs acting as a refuge for shallow‐water coral reefs. In contrast, Acropora and Isopora MOTUs were structured across depth zones representing an exception to this hypothesis. This research provides an imperative assessment of coral recruitment in understudied mesophotic reefs and imparts insight into the refuge hypothesis.
format	article
author	Derek Soto Stéphane DePalmas Ming‐Jay Ho Vianney Denis Chaolun Allen Chen
author_facet	Derek Soto Stéphane DePalmas Ming‐Jay Ho Vianney Denis Chaolun Allen Chen
author_sort	Derek Soto
title	A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones
title_short	A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones
title_full	A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones
title_fullStr	A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones
title_full_unstemmed	A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones
title_sort	molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/ed0c4b97ecea479395dea976f26c8e24
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A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones

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