Patterns of coral settlement in an extreme environment: The southern Persian Gulf (Dubai, United Arab Emirates)

Andrew G. Bauman, Andrew H. Baird, John Burt, Morgan S. Pratchett, David A. Feary

Research output: Contribution to journalArticle

Abstract

Coral settlement is a key ecological process in the maintenance, recovery and resilience of coral reef ecosystems. Coral reefs in the Persian Gulf survive in one of the world's most extreme environments, yet there remains limited knowledge of the role of coral settlement considered critical for maintaining population dynamics. Spatial and temporal patterns of coral settlement were examined at 6 sites in Dubai, United Arab Emirates, using settlement tiles deployed and collected every 3 mo from 2009 to 2011 following coral community surveys. Settlement was highly seasonal with the highest settlement rates between June and August (3.2 spat tile-1 ± 0.21 SE), when summer sea temperatures approached 35°C. There was a smaller settlement pulse between September and November, but no settlement between December and May. Settlement was observed 1 to 4 mo after the major spawning season (April and May), suggesting either delayed settlement of larvae, or spatial and/or taxonomic disparity between studies of reproduction versus settlement. Settlement rates varied significantly among sites, but spatial variation was consistent between the 2 years of the study, suggesting strong effects of local environmental conditions or local coral assemblages. Poritidae and Acroporidae comprised 27 and 11% of the spat respectively, there were no Pocilloporidae and the most abundant coral spat (61%) were from other, not identifiable, families. These data indicate that observed long-term shifts in the community structure of adult coral assemblages are being reinforced through a combination of settlement and post-settlement processes, such that there is limited scope for recovery of former Acropora - dominated coral assemblages in the Persian Gulf.

Original languageEnglish (US)
Pages (from-to)115-126
Number of pages12
JournalMarine Ecology Progress Series
Volume499
DOIs
StatePublished - Mar 3 2014

Fingerprint

United Arab Emirates
Persian Gulf
corals
coral
spit
tiles
coral reefs
coral reef
post-settlement process
Acroporidae
Acropora
gulf
spatial variation
population dynamics
community structure
spawning
environmental conditions
larva
environmental factors
ecosystems

Keywords

  • Arabian Gulf
  • Climate change
  • Coral reefs
  • Coral settlement
  • Larval supply

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Patterns of coral settlement in an extreme environment : The southern Persian Gulf (Dubai, United Arab Emirates). / Bauman, Andrew G.; Baird, Andrew H.; Burt, John; Pratchett, Morgan S.; Feary, David A.

In: Marine Ecology Progress Series, Vol. 499, 03.03.2014, p. 115-126.

Research output: Contribution to journalArticle

Bauman, Andrew G. ; Baird, Andrew H. ; Burt, John ; Pratchett, Morgan S. ; Feary, David A. / Patterns of coral settlement in an extreme environment : The southern Persian Gulf (Dubai, United Arab Emirates). In: Marine Ecology Progress Series. 2014 ; Vol. 499. pp. 115-126.
@article{a6416b24c12f44f0832b005228310c57,
title = "Patterns of coral settlement in an extreme environment: The southern Persian Gulf (Dubai, United Arab Emirates)",
abstract = "Coral settlement is a key ecological process in the maintenance, recovery and resilience of coral reef ecosystems. Coral reefs in the Persian Gulf survive in one of the world's most extreme environments, yet there remains limited knowledge of the role of coral settlement considered critical for maintaining population dynamics. Spatial and temporal patterns of coral settlement were examined at 6 sites in Dubai, United Arab Emirates, using settlement tiles deployed and collected every 3 mo from 2009 to 2011 following coral community surveys. Settlement was highly seasonal with the highest settlement rates between June and August (3.2 spat tile-1 ± 0.21 SE), when summer sea temperatures approached 35°C. There was a smaller settlement pulse between September and November, but no settlement between December and May. Settlement was observed 1 to 4 mo after the major spawning season (April and May), suggesting either delayed settlement of larvae, or spatial and/or taxonomic disparity between studies of reproduction versus settlement. Settlement rates varied significantly among sites, but spatial variation was consistent between the 2 years of the study, suggesting strong effects of local environmental conditions or local coral assemblages. Poritidae and Acroporidae comprised 27 and 11{\%} of the spat respectively, there were no Pocilloporidae and the most abundant coral spat (61{\%}) were from other, not identifiable, families. These data indicate that observed long-term shifts in the community structure of adult coral assemblages are being reinforced through a combination of settlement and post-settlement processes, such that there is limited scope for recovery of former Acropora - dominated coral assemblages in the Persian Gulf.",
keywords = "Arabian Gulf, Climate change, Coral reefs, Coral settlement, Larval supply",
author = "Bauman, {Andrew G.} and Baird, {Andrew H.} and John Burt and Pratchett, {Morgan S.} and Feary, {David A.}",
year = "2014",
month = "3",
day = "3",
doi = "10.3354/meps10662",
language = "English (US)",
volume = "499",
pages = "115--126",
journal = "Marine Ecology - Progress Series",
issn = "0171-8630",
publisher = "Inter-Research",

}

TY - JOUR

T1 - Patterns of coral settlement in an extreme environment

T2 - The southern Persian Gulf (Dubai, United Arab Emirates)

AU - Bauman, Andrew G.

AU - Baird, Andrew H.

AU - Burt, John

AU - Pratchett, Morgan S.

AU - Feary, David A.

PY - 2014/3/3

Y1 - 2014/3/3

N2 - Coral settlement is a key ecological process in the maintenance, recovery and resilience of coral reef ecosystems. Coral reefs in the Persian Gulf survive in one of the world's most extreme environments, yet there remains limited knowledge of the role of coral settlement considered critical for maintaining population dynamics. Spatial and temporal patterns of coral settlement were examined at 6 sites in Dubai, United Arab Emirates, using settlement tiles deployed and collected every 3 mo from 2009 to 2011 following coral community surveys. Settlement was highly seasonal with the highest settlement rates between June and August (3.2 spat tile-1 ± 0.21 SE), when summer sea temperatures approached 35°C. There was a smaller settlement pulse between September and November, but no settlement between December and May. Settlement was observed 1 to 4 mo after the major spawning season (April and May), suggesting either delayed settlement of larvae, or spatial and/or taxonomic disparity between studies of reproduction versus settlement. Settlement rates varied significantly among sites, but spatial variation was consistent between the 2 years of the study, suggesting strong effects of local environmental conditions or local coral assemblages. Poritidae and Acroporidae comprised 27 and 11% of the spat respectively, there were no Pocilloporidae and the most abundant coral spat (61%) were from other, not identifiable, families. These data indicate that observed long-term shifts in the community structure of adult coral assemblages are being reinforced through a combination of settlement and post-settlement processes, such that there is limited scope for recovery of former Acropora - dominated coral assemblages in the Persian Gulf.

AB - Coral settlement is a key ecological process in the maintenance, recovery and resilience of coral reef ecosystems. Coral reefs in the Persian Gulf survive in one of the world's most extreme environments, yet there remains limited knowledge of the role of coral settlement considered critical for maintaining population dynamics. Spatial and temporal patterns of coral settlement were examined at 6 sites in Dubai, United Arab Emirates, using settlement tiles deployed and collected every 3 mo from 2009 to 2011 following coral community surveys. Settlement was highly seasonal with the highest settlement rates between June and August (3.2 spat tile-1 ± 0.21 SE), when summer sea temperatures approached 35°C. There was a smaller settlement pulse between September and November, but no settlement between December and May. Settlement was observed 1 to 4 mo after the major spawning season (April and May), suggesting either delayed settlement of larvae, or spatial and/or taxonomic disparity between studies of reproduction versus settlement. Settlement rates varied significantly among sites, but spatial variation was consistent between the 2 years of the study, suggesting strong effects of local environmental conditions or local coral assemblages. Poritidae and Acroporidae comprised 27 and 11% of the spat respectively, there were no Pocilloporidae and the most abundant coral spat (61%) were from other, not identifiable, families. These data indicate that observed long-term shifts in the community structure of adult coral assemblages are being reinforced through a combination of settlement and post-settlement processes, such that there is limited scope for recovery of former Acropora - dominated coral assemblages in the Persian Gulf.

KW - Arabian Gulf

KW - Climate change

KW - Coral reefs

KW - Coral settlement

KW - Larval supply

UR - http://www.scopus.com/inward/record.url?scp=84895558031&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84895558031&partnerID=8YFLogxK

U2 - 10.3354/meps10662

DO - 10.3354/meps10662

M3 - Article

AN - SCOPUS:84895558031

VL - 499

SP - 115

EP - 126

JO - Marine Ecology - Progress Series

JF - Marine Ecology - Progress Series

SN - 0171-8630

ER -