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Species–specific interactions between algal endosymbionts and coral hosts define their bleaching response to heat and light stress
TLDR
The results challenge speculations that associations with type D are universally most robust to thermal stress and highlight the complexity of interactions between symbiotic partners and a potential role for host factors in determining the physiological performance of reef corals. Expand
Variation in bleaching sensitivity of two coral species across a latitudinal gradient on the Great Barrier Reef: the role of zooxanthellae
TLDR
It was found that the bleaching sensitivity and recovery of both species differed between corals with clade D symbionts and those withclade C, suggesting that local adaptation has occurred in P. damicornis. Expand
Environmental Factors Controlling the Distribution of Symbiodinium Harboured by the Coral Acropora millepora on the Great Barrier Reef
TLDR
It is demonstrated that spatial variability in water quality correlates significantly with Symbiodinium distribution at local scales, and management of local-scale stressors such as altered water quality is also necessary for maintenance of coral-SymbiodInium associations. Expand
Temporal dynamics in coral bioindicators for water quality on coastal coral reefs of the Great Barrier Reef
TLDR
In situ measurements of benthic irradiance and turbidity allowed the quantification of potential stress thresholds for coastal corals, and data suggest long-term turbidity >3 NTU leads to sublethal stress, whereas long- term turbidity <5 NTU corresponds to severe stress effects on corals at shallow depths. Expand
Biogeochemical conditions determine virulence of black band disease in corals
TLDR
The results suggest that biogeochemical microgradients of BBD shaped by the complex microbial community, rather than a defined pathogen, are the major trigger for high virulence and the associated derived coral mortality of this disease. Expand
Microarray analysis reveals transcriptional plasticity in the reef building coral Acropora millepora
TLDR
Declines in total lipid content following translocation were the greatest for inshore corals, suggesting that turbid water corals have a strong reliance on heterotrophic feeding and may indicate nonoxidative stress, hibernation or caloric restriction associated with the changed environmental conditions. Expand
Niche specialization of reef-building corals in the mesophotic zone: metabolic trade-offs between divergent Symbiodinium types
TLDR
It is concluded that while photobiological flexibility is vital for persistence in contrasting light regimes, a shift in Symbiodinium type may also confer a functional advantage albeit at a metabolic cost with increased depth. Expand
Coral community response to bleaching on a highly disturbed reef
TLDR
The results suggest that, despite experiencing chronic anthropogenic disturbances, turbid shallow reef communities may be remarkably resilient to acute thermal stress. Expand
Seasonal variation in the photo-physiology of homogeneous and heterogeneous Symbiodinium consortia in two scleractinian corals
TLDR
Seasonal variation in the composition of the algal endosymbiont community and photo- physiology was determined in the corals Pocillopora damicornis and Acropora valida, and it was suggested that sun-adapted surfaces of P. dami- cornis are more sensitive than shade- Adapted surfaces to combined effects of higher temperature and irradiance in summer. Expand
Zooxanthellae Harvested by Ciliates Associated with Brown Band Syndrome of Corals Remain Photosynthetically Competent
TLDR
The observation of photosynthetically active intracellular zooxanthellae in the ciliates suggests that the latter can benefit from photosynthates produced by ingested zooxanhellae and from photosynthetic oxygen production that alleviates diffusion limitation of oxic respiration in the densely populated brown band tissue. Expand
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