
%0 Journal Article
%A Snedaker, Samuel C. 
%A Araújo, Rafael J. 
%T Stomatal conductance and gas exchange in four species of Caribbean mangroves exposed to ambient and increased CO<emph tye="8">2</emph>
%J Marine and Freshwater Research
%D 1998/10/18
%V 49
%N 4
%P 325-327
%K 
%R https://doi.org/10.1071/MF98001
%U https://www.publish.csiro.au/paper/MF98001 
%X Stomatal conductance and gas exchange rates in sun leaves were measured in multiple individuals of four species of Caribbean mangroves common to south Florida, USA. Under ambient CO2 levels (340&#8211;360 ppm), stomatal conductance (mol m-2 s-1), net primary productivity (g CO2 m-2 min-1), transpiration (g H2O m-2 s-1), and instantaneous transpiration efficiency, ITE, (&#181;mol CO2/mmol H2O) were not significantly different among the four species: Rhizophora mangle (Rm), Avicennia germinans (Ag), Laguncularia racemosa (Lr), and Conocarpus erectus (Ce). Under exposure to increased CO2 (361&#8211;485 ppm) there were highly significant (P &#60; 0.001) decreases in stomatal conductance and transpiration, and a highly significant increase in ITE in all four species. However, there was no significant change in net primary productivity in Rm, Ag and Ce, whereas there was a significant decrease (P &#60; 0.01) in net primary productivity in Lr. 
