Photosynthesis and related physiological processes in two mangrove species, Rhizophora mucronata and Ceriops tagal, at Gazi Bay, Kenya
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Date
1999Author
Theuri, M. Mwangi
Kinyamario, JI
Van Speybroeck, D
Language
enMetadata
Show full item recordAbstract
Measurements were carried out of the gas exchange properties (namely, photosynthesis,
stomatal conductance and transpiration rates), water use efficiency and
water relations of two mangrove species, Rhizophora mucronata and Ceriops tagal
at Gazi Bay, Kenya. Rhizophora mucronata had significantly higher photosynthetic
rates than C. tagal. Internal CO2 concentrations were higher during the wet season
than the dry season in both species.Gas exchange properties were correlated positively
with photon flux density in both species. Leaf water potentials were highest during
the morning and lowest at midday and were also highest in the lower canopy leaves
in both species. The two mangrove species had conservative water use. Management
potential for the East African mangroves based on the results of this study is
suggested.