Chai, Xiaojie and Li, Xiaowen and Hii, Kieng Soon and Zhang, Qi and Deng, Qinghui and Wan, Lingling and Zheng, Lingling and Lim, Po Teen and Tan, Suh Nih and Mohd-Din, Monaliza and Song, Chunlei and Song, Lirong and Zhou, Yiyong and Cao, Xiuyun (2021) Blooms of diatom and dinoflagellate associated with nutrient imbalance driven by cycling of nitrogen and phosphorus in anaerobic sediments in Johor Strait (Malaysia). Marine Environmental Research, 169. ISSN 0141-1136, DOI https://doi.org/10.1016/j.marenvres.2021.105398.
Full text not available from this repository.Abstract
Coastal eutrophication is one of the pivotal factors driving occurrence of harmful algal blooms (HABs), whose underlying mechanism remained unclear. To better understand the nutrient regime triggering HABs and their formation process, the phytoplankton composition and its response to varying nitrogen (N) and phosphorus (P), physio-chemical parameters in water and sediment in Johor Strait in March 2019 were analyzed. Surface and sub-surface HABs were observed with the main causative species of Skeletonema, Chaetoceros and Karlodinium. The ecophysiological responses of Skeletonema to the low ambient N/P ratio such as secreting alkaline phosphatase, regulating cell morphology (volume; surface area/volume ratio) might play an important role in dominating the community. Anaerobic sediment iron-bound P release and simultaneous N removal by denitrification and anammox, shaped the stoichiometry of N and P in water column. The decrease of N/P ratio might shift the phytoplankton community into the dominance of HABs causative diatoms and dinoflagellates.
| Item Type: | Article |
|---|---|
| Funders: | National Key Research and Development Program of China [2016YFE0202100], National Natural Science Foundation of China (NSFC) [41877381], Chinese Academy of Sciences [2019FBZ01], MOHE-LRGS, IOES HICOE |
| Uncontrolled Keywords: | Bloom layer; Diatom; Nutrient imbalance; Denitrification; Phosphorus release; Sediment |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 01 Jun 2022 04:53 |
| Last Modified: | 01 Jun 2022 04:53 |
| URI: | http://eprints.um.edu.my/id/eprint/34492 |
Actions (login required)
 |
View Item |
