Abstract

• The vegetative structure of mangrove from Uto tidal creek which is situated at the Shwe -ThaungYan coastal area has been conducted by using the Line Transect Method (English et al., (1997). The mangrove area at Shwe- Thaung- Yan coastal area is about 2000 ha and comprised a total of 17 true mangrove species. The study area is based the Uto tidal creek which is favorable for the establishment of mangrove. Six transect lines which are perpendicular to the shore line were laid along the tidal creek to determine the vegetative structure of the mangroves. Each transect line is 90m long and three sample points of 30m×10m were intercepted on all transect lines. The visual observation of number of mangrove plants, number of species, number of new shoots, and number of cut branches were recorded. The highest and the smallest plants of different species within each sample points were also identified and measured its height and circumference. All the recorded data were then used to estimate the vegetative structure of the area. The environmental parameters such as soil type and salinity were also then measured. A total of nine true mangrove species such as Rhizophora mucronata, R. apiculata, Ceriops decandra, Bruguiera gymnorhiza, B.cylindrica, Xylocarpus granatum, Lumnitzera littorea, Aegiceras corniculatum and Nypa fruticans were recorded. Among the recorded species of within the sample points, Ceriops decandra and Bruguiera gymnorhiza are represented as the dominant species.