Surface and core sediment characteristics of mangrove in tidal dominated estuaries: Brunei Bay, Sabah

Spencer Ryan Justin, (2007) Surface and core sediment characteristics of mangrove in tidal dominated estuaries: Brunei Bay, Sabah. Universiti Malaysia Sabah. (Unpublished)

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Abstract

The study was conducted to study the surface and core sediment characteristics of mangrove in tidal dominated estuaries in Brunei Bay, Sabah. Ten samples have been carried out in July, 2006 where two samples were taken at Weston area (transect 1), four samples at Sipitang (transect 2) and the other four samples were taken at the Menumbuk area (transect 3). Each sample were taken along the transect line where it was set up from the water edge to the back mangrove except sample that taken on transect 1 because the sampling location are situated at the small island. Samples were taken using hand corer. Particle sizes were studied using Particle Size Analyzer (PSA) as a measurement machine. Three statistical parameter (mean, sorting and skewness) for grain size sediment were analyzed. Organic matter content was measured by burning the sediment with temperature over 500ºC. The dominant types of sediment in all station are silt where it was contained more than 52% in each core samples. Coarser sediment mostly founded more in the surface of the samples but there are cases that high percentages quantity value of coarser sediment occurred in the middle and at the bottom of core samples. There were no patterns formed by the distribution of sediment by different depth. There are not enough data to conclude that there are significant differences between the sediment criteria of different mangroves species. Organic matter content increasing towards the back mangrove except in station 1 and station 2 of transect 2 where there is a slight similarity in organic matter composition between both stations. Stations that located at transect 3 have not enough data to conclude that there are differences between samples in each stations of organic matter content. There are slight similarity trend where the organic matter content is increasing from the surface to the bottom of the core sample.

Item Type: Academic Exercise
Uncontrolled Keywords: Brunei Bay, core sediment, surface, Particle Size Analyzer, Organic matter content
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions: SCHOOL > School of Science and Technology
Depositing User: MDM SITI AZIZAH IDRIS
Date Deposited: 01 Apr 2014 01:00
Last Modified: 13 Oct 2017 01:23
URI: http://eprints.ums.edu.my/id/eprint/8528

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