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Downcore Distribution of Benthic Foraminifera from Sarawak Offshore
Nur Aziemah binti Abdul Malek
Supervisor: Prof Dr. Rosnan bin Yaacob
Bachelor of Science (Marine Science)
School of Marine and Environmental Sciences
A study on downcore distribution of benthic foraminifera assemblages has been carried
out in Sarawak offshore. The sediment core was collected with range 0 to 225 cm in
order to relate the foraminifera assemblages with sediment texture. A total of 10
sediment samples with 5 cm interval for each core segment were taken for this study.
As a result, 21 genera have been identified from a total of 2096 individuals of
foraminifera. The most dominant and abundance genera were largely dominated by 3
genera namely Operculina (15.17%), Pseudorotalia (11.98%) and Textularia
(11.78%). The diversity indices such as Shannon- Weiner index, Evenness index and
Fisher alpha index were calculated for each core segment to determine the distribution
of foraminifera. The core segment has high proportion of silt and clay. The distribution
of benthic foraminifera is controlled by several biotic and abiotic factors, including
sediment texture.
1898 | UMT UNDERGRADUATE RESEARCH DAY 2018