Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics
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 se...
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| Format: | Article |
| Language: | English English |
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Elsevier
2020
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| Online Access: | http://umpir.ump.edu.my/id/eprint/28566/ http://umpir.ump.edu.my/id/eprint/28566/1/pang2020.pdf http://umpir.ump.edu.my/id/eprint/28566/7/Input%20of%20organic%20matter%20in%20Brunei%20Bay%2C%20East%20Malaysia%2C%20as%20indicated%20by%20sedimentary%20steroids.pdf |
| _version_ | 1848823086233681920 |
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| author | Tay, Joo Hui Pang, Swee Yun Suhaimi, Suratman Simoneit, B.R.T. Norhayati, Mohd Tahir |
| author_facet | Tay, Joo Hui Pang, Swee Yun Suhaimi, Suratman Simoneit, B.R.T. Norhayati, Mohd Tahir |
| author_sort | Tay, Joo Hui |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-15T02:51:32Z |
| format | Article |
| id | ump-28566 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T02:51:32Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-285662020-07-15T01:56:29Z http://umpir.ump.edu.my/id/eprint/28566/ Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics Tay, Joo Hui Pang, Swee Yun Suhaimi, Suratman Simoneit, B.R.T. Norhayati, Mohd Tahir QD Chemistry 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. Elsevier 2020-07 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28566/1/pang2020.pdf pdf en http://umpir.ump.edu.my/id/eprint/28566/7/Input%20of%20organic%20matter%20in%20Brunei%20Bay%2C%20East%20Malaysia%2C%20as%20indicated%20by%20sedimentary%20steroids.pdf 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) https://doi.org/10.1016/j.marpolbul.2020.111269 https://doi.org/10.1016/j.marpolbul.2020.111269 |
| spellingShingle | QD Chemistry Tay, Joo Hui Pang, Swee Yun Suhaimi, Suratman Simoneit, B.R.T. Norhayati, Mohd Tahir Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics |
| title | Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics |
| title_full | Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics |
| title_fullStr | Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics |
| title_full_unstemmed | Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics |
| title_short | Input of organic matter in Brunei Bay, East Malaysia, as indicated by sedimentary steroids and multivariate statistics |
| title_sort | input of organic matter in brunei bay, east malaysia, as indicated by sedimentary steroids and multivariate statistics |
| topic | QD Chemistry |
| url | http://umpir.ump.edu.my/id/eprint/28566/ http://umpir.ump.edu.my/id/eprint/28566/ http://umpir.ump.edu.my/id/eprint/28566/ http://umpir.ump.edu.my/id/eprint/28566/1/pang2020.pdf http://umpir.ump.edu.my/id/eprint/28566/7/Input%20of%20organic%20matter%20in%20Brunei%20Bay%2C%20East%20Malaysia%2C%20as%20indicated%20by%20sedimentary%20steroids.pdf |