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Spatio-temporal coral disease dynamics in the Wakatobi Marine National Park, South-East Sulawesi, Indonesia

Citation

Haapkyla, J and Unsworth, RKF and Seymour, AS and Melbourne-Thomas, J and Flavell, M and Willis, BL and Smith, DJ, Spatio-temporal coral disease dynamics in the Wakatobi Marine National Park, South-East Sulawesi, Indonesia , Diseases of Aquatic Organisms, 87, (1-2) pp. 105-115. ISSN 0177-5103 (2009) [Refereed Article]

DOI: doi:10.3354/dao02160

Abstract

In the present study we investigated inter-annual coral disease dynamics, in situ disease progression rates, and disease-associated coral tissue mortality in the Wakatobi Marine National Park (WMNP) situated in the coral triangle in South-East Sulawesi, Indonesia. In 2005, only 2 known syndromes were recorded within the sampling area transect surveys: white syndrome (WS; 0.42% prevalence) and growth anomalies (GA; 0.15% prevalence), whilst 4 diseases were recorded in 2007: WS (0.19%), Porites ulcerative white spot disease (PUWS; 0.08%), GA (0.05%) and black band disease (BBD; 0.02%). Total disease prevalence decreased from 0.57% in 2005 to 0.33% in 2007. In addition to prevalence surveys, in situ progression rates of 4 diseases were investigated in 2007: BBD on Pachyseris foliosa, P. rugosa and Diploastrea heliopora, WS on Acropora clathrata, and brown band (BrB) and skeletal eroding band (SEB) diseases on Acropora pulchra. BrB and WS had the highest progression rates, 1.2 ± 0.36 and 1.1 ± 0.07 cm d-1, respectively, indicating that diseases may have a significant impact on local Acropora populations. BBD had the lowest progression rate (0.39 ± 0.14 cm d-1). WS caused the most severe recorded total tissue mortality: 53 923 cm2 over a period of 36 d. Sedimentation and coral cover were studied and a highly significant drop in coral cover was observed. This study provides the first documentation of spatio-temporal coral disease dynamics from Indonesia. Despite low total disease prevalence, progression rates comparable to the ones observed in the Caribbean and Australia indicate that diseases may threaten the reef framework in some locations and add to the degradation of coral reefs in a region already at high risk from anthropogenic impacts. © Inter-Research 2009.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Environment
Objective Group:Control of Pests, Diseases and Exotic Species
Objective Field:Control of Pests, Diseases and Exotic Species in Marine Environments
Author:Melbourne-Thomas, J (Dr Jessica Melbourne-Thomas)
ID Code:59213
Year Published:2009
Web of Science® Times Cited:26
Deposited By:Zoology
Deposited On:2009-11-25
Last Modified:2015-01-27
Downloads:0

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