Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia
Particulate phosphorus was the dominant phosphorus species and accounted for 72 ± 5% of total phosphorus in coastal habitats, 63 ± 4% in estuaries, 58 ± 6% in lakes and 80 ± 7% in aquaculture farms whereas dissolved inorganic phosphorus (DIP) and dissolved organic phosphorus (DOP) were minor compone...
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| Format: | Article |
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Elsevier
2018
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| _version_ | 1796961440183091200 |
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| author | Lim, Joon Hai Lee, Choon Weng Bong, Chui Wei Affendi, Yang Amri Hii, Yii Siang Kudo, Isao |
| author_facet | Lim, Joon Hai Lee, Choon Weng Bong, Chui Wei Affendi, Yang Amri Hii, Yii Siang Kudo, Isao |
| author_sort | Lim, Joon Hai |
| collection | UM |
| description | Particulate phosphorus was the dominant phosphorus species and accounted for 72 ± 5% of total phosphorus in coastal habitats, 63 ± 4% in estuaries, 58 ± 6% in lakes and 80 ± 7% in aquaculture farms whereas dissolved inorganic phosphorus (DIP) and dissolved organic phosphorus (DOP) were minor components. Correlation analyses (DIP vs Chl a; R2 = 0.407, df = 31, p < 0.001) suggested phosphorus limiting conditions in lakes, which was corroborated with the highest alkaline phosphatase activity (APA) that fluctuated from 0.38 to 41.14 nmol L−1 min−1. In contrast, APA was elevated in coastal habitats and estuaries only when DIP concentration decreased below 0.9 μM. Moreover size-fractionation experiment showed that the highest APA was detected in the 0.2–2 μm pico-size fraction. Our results suggested that the main APA in coastal habitats and estuaries was from phototrophic pico-eukaryotes and heterotrophic bacteria, and regulated largely by DIP availability. |
| first_indexed | 2024-03-06T05:54:11Z |
| format | Article |
| id | um.eprints-21451 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:54:11Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-214512019-06-11T03:24:48Z http://eprints.um.edu.my/21451/ Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia Lim, Joon Hai Lee, Choon Weng Bong, Chui Wei Affendi, Yang Amri Hii, Yii Siang Kudo, Isao Q Science (General) QH Natural history Particulate phosphorus was the dominant phosphorus species and accounted for 72 ± 5% of total phosphorus in coastal habitats, 63 ± 4% in estuaries, 58 ± 6% in lakes and 80 ± 7% in aquaculture farms whereas dissolved inorganic phosphorus (DIP) and dissolved organic phosphorus (DOP) were minor components. Correlation analyses (DIP vs Chl a; R2 = 0.407, df = 31, p < 0.001) suggested phosphorus limiting conditions in lakes, which was corroborated with the highest alkaline phosphatase activity (APA) that fluctuated from 0.38 to 41.14 nmol L−1 min−1. In contrast, APA was elevated in coastal habitats and estuaries only when DIP concentration decreased below 0.9 μM. Moreover size-fractionation experiment showed that the highest APA was detected in the 0.2–2 μm pico-size fraction. Our results suggested that the main APA in coastal habitats and estuaries was from phototrophic pico-eukaryotes and heterotrophic bacteria, and regulated largely by DIP availability. Elsevier 2018 Article PeerReviewed Lim, Joon Hai and Lee, Choon Weng and Bong, Chui Wei and Affendi, Yang Amri and Hii, Yii Siang and Kudo, Isao (2018) Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia. Marine Pollution Bulletin, 128. pp. 415-427. ISSN 0025-326X, DOI https://doi.org/10.1016/j.marpolbul.2018.01.037 <https://doi.org/10.1016/j.marpolbul.2018.01.037>. https://doi.org/10.1016/j.marpolbul.2018.01.037 doi:10.1016/j.marpolbul.2018.01.037 |
| spellingShingle | Q Science (General) QH Natural history Lim, Joon Hai Lee, Choon Weng Bong, Chui Wei Affendi, Yang Amri Hii, Yii Siang Kudo, Isao Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia |
| title | Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia |
| title_full | Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia |
| title_fullStr | Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia |
| title_full_unstemmed | Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia |
| title_short | Distributions of particulate and dissolved phosphorus in aquatic habitats of Peninsular Malaysia |
| title_sort | distributions of particulate and dissolved phosphorus in aquatic habitats of peninsular malaysia |
| topic | Q Science (General) QH Natural history |
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