Resilience of branching and massive corals to wave loading under sea level rise - A coupled computational fluid dynamics-structural analysis

被引：40

作者：

Baldock, Tom E. ^{[1
]}

Karampour, Hassan ^{[3
]}

Sleep, Rachael ^{[1
]}

Vyltla, Anisha ^{[1
]}

Albermani, Faris ^{[1
]}

Golshani, Aliasghar ^{[1
]}

Callaghan, David P. ^{[1
]}

Roff, George ^{[2
]}

Mumby, Peter J. ^{[2
]}

机构：

[1] Univ Queensland, Sch Civil Engn, St Lucia, Qld 4072, Australia

[2] Univ Queensland, Sch Biol Sci, Marine Spatial Ecol Lab, St Lucia, Qld 4072, Australia

[3] Griffith Univ, Sch Engn, Gold Coast, Qld 4222, Australia

来源：

MARINE POLLUTION BULLETIN | 2014年 / 86卷 / 1-2期

关键词：

Coral; Wave loading; Coral breakage; Sea level rise; Structural properties; Reef bathymetry; CLIMATE-CHANGE; REEF FLATS; MODEL; MECHANICS; MORTALITY; BREAKAGE; ECOLOGY; IMPACT;

D O I：

10.1016/j.marpolbul.2014.07.038

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Measurements of coral structural strength are coupled with a fluid dynamics-structural analysis to investigate the resilience of coral to wave loading under sea level rise and a typical Great Barrier Reef lagoon wave climate. The measured structural properties were used to determine the wave conditions and flow velocities that lead to structural failure. Hydrodynamic modelling was subsequently used to investigate the type of the bathymetry where coral is most vulnerable to breakage under cyclonic wave conditions, and how sea level rise (SLR) changes this vulnerability. Massive corals are determined not to be vulnerable to wave induced structural damage, whereas branching corals are susceptible at wave induced orbital velocities exceeding 0.5 m/s. Model results from a large suite of idealised bathymetry suggest that SLR of 1 m or a loss of skeleton strength of order 25% significantly increases the area of reef flat where branching corals are exposed to damaging wave induced flows. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：91 / 101

页数：11

共 35 条

[1] Shifts in coral-assemblage composition do not ensure persistence of reef functionality [J].

Alvarez-Filip, Lorenzo ;

Carricart-Ganivet, Juan P. ;

Horta-Puga, Guillermo ;

Iglesias-Prieto, Roberto .

SCIENTIFIC REPORTS, 2013, 3

[2] Impact of sea-level rise and coral mortality on the wave dynamics and wave forces on barrier reefs [J].

Baldock, T. E. ;

Golshani, A. ;

Callaghan, D. P. ;

Saunders, M. I. ;

Mumby, P. J. .

MARINE POLLUTION BULLETIN, 2014, 83 (01) :155-164

[3] Skeletal morphology and material properties of a fragmenting gorgonian coral [J].

Boller, ML ;

Swain, TD ;

Lasker, HR .

MARINE ECOLOGY PROGRESS SERIES, 2002, 228 :131-141

[4] A third-generation wave model for coastal regions - 1. Model description and validation [J].

Booij, N ;

Ris, RC ;

Holthuijsen, LH .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1999, 104 (C4) :7649-7666

[5] Skeletal micro-density, porosity and bulk density of acroporid corals [J].

Bucher, DJ ;

Harriott, VJ ;

Roberts, LG .

JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 1998, 228 (01) :117-136

[6] CORAL-REEF GROWTH IN AN ERA OF RAPIDLY RISING SEA-LEVEL - PREDICTIONS AND SUGGESTIONS FOR LONG-TERM RESEARCH [J].

BUDDEMEIER, RW ;

SMITH, SV .

CORAL REEFS, 1988, 7 (01) :51-56

[7] Hydrodynamic forcing on salt-marsh development: Distinguishing the relative importance of waves and tidal flows [J].

Callaghan, D. P. ;

Bouma, T. J. ;

Klaassen, P. ;

van der Wal, D. ;

Stive, M. J. F. ;

Herman, P. M. J. .

ESTUARINE COASTAL AND SHELF SCIENCE, 2010, 89 (01) :73-88

[8] Sensitivity of Calcification to Thermal Stress Varies among Genera of Massive Reef-Building Corals [J].

Carricart-Ganivet, Juan P. ;

Cabanillas-Teran, Nancy ;

Cruz-Ortega, Israel ;

Blanchon, Paul .

PLOS ONE, 2012, 7 (03)

[9] MECHANICAL-PROPERTIES OF CORAL SKELETON - COMPRESSIVE STRENGTH AND ITS ADAPTIVE SIGNIFICANCE [J].

CHAMBERLAIN, JA .

PALEOBIOLOGY, 1978, 4 (04) :419-435

[10] Declining Coral Calcification on the Great Barrier Reef [J].

De'ath, Glenn ;

Lough, Janice M. ;

Fabricius, Katharina E. .

SCIENCE, 2009, 323 (5910) :116-119

← 1 2 3 4 →