Skeletonema costatum of mangrove ecosystem: Its dynamics across physico-chemical parameters variability

Redzuan, Nurul Shahida and Milow, Pozi (2019) Skeletonema costatum of mangrove ecosystem: Its dynamics across physico-chemical parameters variability. AACL Bioflux, 12 (1). pp. 179-190. ISSN 1844-8143

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Official URL: http://www.bioflux.com.ro/docs/2019.179-190.pdf

Abstract

As part of a monitoring programme, twelve months total phytoplankton sampling were carried out starting from April 2009 to March 2010 in Carey Island mangrove ecosystem across measured physico-chemical and total phytoplankton diversity parameters. Across the one year sampling period, we found three major occurrences of mono-species bloom of Skeletonema costatum in the month of April, May and August 2009, in which the water body at study site displayed dark brown colour. This diatom species that displayed significant temporal variation has been found to grow rapidly when the nitrate concentration and temperature of the water column were > 0.6 mg L -1 and > 31°C, respectively. This study shows that S. costatum displayed negative correlation with dissolved oxygen in the water column. Increase in S. costatum cells abundance at the study site proved to destabilize total phytoplankton diversity by decreasing the equitability (measured by evenness) of total phytoplankton. © 2019, BIOFLUX SRL. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Mono-species bloom; Physico-chemical parameters; Skeletonema costatum; Total phytoplankton
Subjects: Q Science > Q Science (General)
Q Science > QR Microbiology
S Agriculture > SB Plant culture
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 05 Feb 2020 01:52
Last Modified: 05 Feb 2020 01:52
URI: http://eprints.um.edu.my/id/eprint/23657

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