The effect of temperature and ammonia on species-dependent coral health status: A comparative case study of Acropora sp. and Porites sp.

2018 ◽  
Vol 44 ◽  
pp. S149-S150
Author(s):  
P. Chawakitchareon ◽  
B. Udomsap ◽  
S. Rungsupa
Keyword(s):  
Health Status ◽  
Effect Of Temperature ◽  
Comparative Case Study ◽  
Coral Health

scholarly journals An effect-analysis method for species-dependent coral health status in temperature and ammonia: a case study of Acropora sp., Turbinaria sp., and Porites sp.

2019 ◽  
Vol 93 ◽  
pp. 01002
Author(s):  
U Bussapakorn ◽  
C Petchporn ◽  
R Sompop
Keyword(s):  
Health Status ◽  
Toxicity Testing ◽  
The Other ◽  
Analysis Method ◽  
Acute Effects ◽  
Effect Analysis ◽  
Effects Of Temperature ◽  
Coral Health ◽  
Acute Toxicity Testing

This research aimed to study the effects of temperature and ammonia on the health status of Acropora sp., Turbinaria sp., and Porites sp. by using acute toxicity testing (50% Lethal Concentration: LC50). The acute effects were monitored at temperatures of 30°C and 33°C at 24 and 48 hrs. The concentrations of ammonia varied at 0 0.05 0.07 and 0.1 mgN/L, respectively. The active polyp percentages of Acropora sp. was analyzed with comparison to the health status percentages. According to the findings at 30°C (24 and 48 hrs) and 33°C (24 hrs), the LC50 could not be investigated because the mortality percentages was not below 50%. On the other hand, at 33°C (48 hrs), the LC50 could be evaluated because the mortality percentages exceeded 50%. Therefore, the LC50 at 48 hrs of Acropora sp., Turbinaria sp., and Porites sp. were equal to 0.043, 0.075 and 0.054 mgN/L, respectively.

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