Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics

Tay, Joo Hui and Pang, Swee Yun and Suhaimi, Suratman and Simoneit, B.R.T. and Norhayati, Mohd Tahir (2020) Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics. Marine Pollution Bulletin, 156. p. 111269. ISSN 0025-326X. (Published)

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Abstract

Brunei Bay is one of the most important marine environments of East Malaysia (South China Sea), covering many productive ecosystems with activities including fisheries, tourism, and main shipping lanes for petroleum transfers. Evaluation of the sources and distributions of steroids in the surface sedimentary organic matter was carried out by gas chromatography–mass spectrometry (GC–MS). The concentrations of the total identified sterols (TIS) ranged between 0.81 and 12.69 μg g−1 dry weight, and the total sterones were between 0.11 and 5.66 μg g−1 dry weight. The coprostanol level was comparatively low (<0.10 μg g−1), and the multi-biomarker proxies indicated that the region did not exhibit significant contamination from sewage effluents. Principal component analysis (PCA) revealed the coastal environment of the study area was dominated by allochthonous (mainly terrestrial) organic matter input.

Item Type:	Article
Additional Information:	Indexed by Scopus & WOS
Uncontrolled Keywords:	Allochthonous input; Brunei Bay; Coprostanol; PCA; Sterols
Subjects:	Q Science > QD Chemistry
Faculty/Division:	Faculty of Industrial Sciences And Technology
Depositing User:	Dr. Joo Hui Tay
Date Deposited:	15 Jul 2020 01:56
Last Modified:	15 Jul 2020 01:56
URI:	http://umpir.ump.edu.my/id/eprint/28566
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