Coral spawning patterns of Acropora across two Maldivian reef ecosystems

Understanding patterns in coral reproductive biology at local and regional scales is crucial to elucidate our knowledge of characteristics that regulate populations and communities. The lack of published data on coral spawning patterns in the Maldives hinders our understanding of coral reproductive...

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Main Authors: Margaux A.A. Monfared, Kate Sheridan, Simon P. Dixon, Matthew Gledhill, Thomas Le Berre
Format: Article
Language:English
Published: PeerJ Inc. 2023-10-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/16315.pdf
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author Margaux A.A. Monfared
Kate Sheridan
Simon P. Dixon
Matthew Gledhill
Thomas Le Berre
author_facet Margaux A.A. Monfared
Kate Sheridan
Simon P. Dixon
Matthew Gledhill
Thomas Le Berre
author_sort Margaux A.A. Monfared
collection DOAJ
description Understanding patterns in coral reproductive biology at local and regional scales is crucial to elucidate our knowledge of characteristics that regulate populations and communities. The lack of published data on coral spawning patterns in the Maldives hinders our understanding of coral reproductive biology and limits our ability to assess shifts in reproductive phenology over time. Here we document baseline environmental cues, spawning patterns, exact timings and oocyte development of restored and wild Acropora, inhabiting shallow water reefs, across two Maldivian atolls. A total of 1,200 colonies were recorded spawning across the two sites between October 2021 and April 2023. These colonies represent 22 species of Acropora, with coral spawning observed over an extended period of eight months. This research details exact spawning times of multi-specific spawning, asynchronous spawning and ‘split spawning’ of Acropora, across multiple lunar phases; and highlights the need to consider restored colonies when discussing the sexual reproductive patterns of Maldivian Acropora in the future. Overall, corals spawned earlier in North Male Atoll compared with Baa Atoll. Earlier spawning events were significantly correlated with lower tide depths, wind speeds, daily precipitation and higher sea surface temperatures which helped explain inter-atoll, inter-annual, and intra-annual variations in spawning day. This study contributes to understanding sexual reproductive cycles of Acropora in the Maldives; knowledge that is vital for effective management of a critically endangered ecosystem in a changing climate.
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spelling doaj.art-d0b103a249d94a64801e1e377ae007f22023-12-03T12:00:06ZengPeerJ Inc.PeerJ2167-83592023-10-0111e1631510.7717/peerj.16315Coral spawning patterns of Acropora across two Maldivian reef ecosystemsMargaux A.A. Monfared0Kate Sheridan1Simon P. Dixon2Matthew Gledhill3Thomas Le Berre4Reefscapers PVT Ltd, Male, MaldivesReefscapers PVT Ltd, Male, MaldivesReefscapers PVT Ltd, Male, MaldivesReefscapers PVT Ltd, Male, MaldivesReefscapers PVT Ltd, Male, MaldivesUnderstanding patterns in coral reproductive biology at local and regional scales is crucial to elucidate our knowledge of characteristics that regulate populations and communities. The lack of published data on coral spawning patterns in the Maldives hinders our understanding of coral reproductive biology and limits our ability to assess shifts in reproductive phenology over time. Here we document baseline environmental cues, spawning patterns, exact timings and oocyte development of restored and wild Acropora, inhabiting shallow water reefs, across two Maldivian atolls. A total of 1,200 colonies were recorded spawning across the two sites between October 2021 and April 2023. These colonies represent 22 species of Acropora, with coral spawning observed over an extended period of eight months. This research details exact spawning times of multi-specific spawning, asynchronous spawning and ‘split spawning’ of Acropora, across multiple lunar phases; and highlights the need to consider restored colonies when discussing the sexual reproductive patterns of Maldivian Acropora in the future. Overall, corals spawned earlier in North Male Atoll compared with Baa Atoll. Earlier spawning events were significantly correlated with lower tide depths, wind speeds, daily precipitation and higher sea surface temperatures which helped explain inter-atoll, inter-annual, and intra-annual variations in spawning day. This study contributes to understanding sexual reproductive cycles of Acropora in the Maldives; knowledge that is vital for effective management of a critically endangered ecosystem in a changing climate.https://peerj.com/articles/16315.pdfCoral SpawningMaldivesAcropora
spellingShingle Margaux A.A. Monfared
Kate Sheridan
Simon P. Dixon
Matthew Gledhill
Thomas Le Berre
Coral spawning patterns of Acropora across two Maldivian reef ecosystems
PeerJ
Coral Spawning
Maldives
Acropora
title Coral spawning patterns of Acropora across two Maldivian reef ecosystems
title_full Coral spawning patterns of Acropora across two Maldivian reef ecosystems
title_fullStr Coral spawning patterns of Acropora across two Maldivian reef ecosystems
title_full_unstemmed Coral spawning patterns of Acropora across two Maldivian reef ecosystems
title_short Coral spawning patterns of Acropora across two Maldivian reef ecosystems
title_sort coral spawning patterns of acropora across two maldivian reef ecosystems
topic Coral Spawning
Maldives
Acropora
url https://peerj.com/articles/16315.pdf
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