J. Bio. Env. Sci.17( 3), 36-40, September 2020
Several studies show that mangrove trees possess high species- and site-related trait allometry, suggesting large morphological plasticity that might be related to environmental conditions, but the causes of such variation are not clearly understood and systematic quantification is still missing. The result of the study was a big help and contribution in understanding mangrove morphological response specifically the Genus Sonneratia to the salinity and temperature with the use of Canonical Correspondence Analysis (CCA). Genus Sonneratia was selected because these species were present in a selected area along coastal area of Butuan City, Buenavista and Gingoog City, Philippines. The Sonneratia in Gingoog City usually has the highest value with average height of 10.8, 34cm dbh, 6 meters’ canopy diameter and branch of 6 followed by Butuan City and Buenavista. In terms of salinity and temperature, still, Gingoog obtained the highest average value of 30.0ppt and 32 Degree Celsius respectively. All obtained environmental variables were used in Canonical Correspondence Analysis (CCA) to determine the relationship between variables to the Genus Sonneratia. Result revealed that one species of Sonneratia or Sonneratia alba was associated with salinity and other variables as it goes upward going to positive direction. Results further explain that the genus Sonneratia seems not to prefer to thrive in a high temperature.
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