merged

Sediment Influences on Distribution of Bivalve in Mangrove Ecosystem:
Setiu Wetland
Muhammad Yusri bin Ya’akub
Supervisor: Dr. Nor Bakhiah binti Baharim
Bachelor of Science (Marine Science)
School of Marine and Environmental Sciences
University Malaysia Terengganu
This study was conducted in the lagoon area at mangrove ecosystem at Setiu Wetland
Boardwalk. Sediment samples and bivalves were collected from 6 stations along the
lagoon. A total of two species of bivalves were recorded, with Meretrix meretrix being
the more dominant group than Clausinella chlorotica. The distribution of bivalves
within mangrove communities is likely to be influenced by sediment types. The
bivalves were examined from Station 1 to 6 which sediments composed of sand type
varying from very fine sand (62.5-125 µm) to very coarse sand (1000-2000 µm), and
gravel ( > 2000 µm). The most distributed bivalve was observed in medium and coarse
sands at Station 6. The least distributed bivalve was observed at Station 3 in coarse
and very coarse sands. The results suggest that the sediment that influences bivalves
tend to be coarse sand texture compared to the other types of sand.
1886 | UMT UNDERGRADUATE RESEARCH DAY 2018