Environmental control of Vibrio spp. abundance and community structure in tropical waters

Wong, Yi You and Lee, Choon Weng and Bong, Chui Wei and Lim, Joon Hai and Narayanan, Kumaran and Sim, Edmund Ui Hang (2019) Environmental control of Vibrio spp. abundance and community structure in tropical waters. FEMS Microbiology Ecology, 95 (11). fiz176. ISSN 0168-6496, DOI https://doi.org/10.1093/femsec/fiz176.

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Official URL: https://doi.org/10.1093/femsec/fiz176


We measured Vibrio spp. distribution and community profile in the tropical estuary of Port Klang and coastal water of Port Dickson, Malaysia. Vibrio spp. abundance ranged from 15 to 2395 colony forming units mL-1, and was driven by salinity and chlorophyll a (Chl a) concentration. However, the effect of salinity was pronounced only when salinity was <20 ppt. A total of 27 Vibrio spp. were identified, and theVibrio spp. community at Port Dickson was more diverse (H' = 1.94 ± 0.21). However species composition between Port Dickson and Port Klang were similar. Two frequently occurring Vibrio spp. were V. owensii and V. rotiferianus, which exhibited relatively higher growth rates (ANCOVA: F > 4.338, P < 0.05). Co-culture experiments between fast- and slow-growing Vibrio spp. revealed that fast-growing Vibrio spp. (r-strategists) were overwhelmed by slower-growing Vibrio spp. (K-strategists) when nutrient conditions were set towards oligotrophy. In response to resource availability, the intrinsic growth strategy of each Vibrio spp. determined its occurrence and the development of Vibrio spp. community composition. © FEMS 2019.

Item Type: Article
Funders: University of Malaya (PG279‒2016A and UM.C/625/1/HIR/050), Institution Centre of Excellence (HiCOE) Phase II Fund, Ministry of Higher Education (IOES-2014D)
Uncontrolled Keywords: Vibrio spp. abundance; growth rate; grazing loss rate; tropical coastal water; r/K-strategies; Vibrio spp. diversity
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history
Q Science > QR Microbiology
Divisions: Faculty of Science > Institute of Biological Sciences
Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 29 Nov 2019 03:02
Last Modified: 29 Nov 2019 03:02
URI: http://eprints.um.edu.my/id/eprint/23148

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