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 U. H. (2019) Environmental control of Vibrio spp. abundance and community structure in tropical waters. FEMS Microbiology Ecology. ISSN 1574-6941

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Abstract

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 cfu mL⁻¹, and were 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 Vibrio 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 their occurrence and the development of Vibrio spp. community composition.

Item Type: E-Article
Additional Information: Project Report (BSc.) - Universiti Malaysia Sarawak , 2008.
Uncontrolled Keywords: Vibrio spp. abundance, Growth rate, Grazing loss rate, Tropical coastal water, r/K-strategies, Vibrio spp. diversity, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, research, Universiti Malaysia Sarawak.
Subjects: Q Science > Q Science (General)
Q Science > QR Microbiology
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Ui Hang
Date Deposited: 07 Nov 2019 04:56
Last Modified: 29 Jun 2020 01:42
URI: http://ir.unimas.my/id/eprint/27719

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