Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia

In the Kota Kinabalu coastal area, the episodic occurrences of harmful algal bloom (HAB) species had been reported more than a decade ago. But, the time of the occurrence and factors contributing to the occurrence are still inadequately understood. To fill the gap, a study using 4 years field data f...

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Main Authors:	Normawaty Mohammad-Noor, Encik Weliyadi, Than, Aung, Aimimuliani Adam, Dayang Siti Maryam Hanan
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2014
Online Access:	http://journalarticle.ukm.my/6811/ http://journalarticle.ukm.my/6811/ http://journalarticle.ukm.my/6811/1/03_Normawaty.pdf

id	ukm-6811
recordtype	eprints
spelling	ukm-68112016-12-14T06:42:15Z http://journalarticle.ukm.my/6811/ Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia Normawaty Mohammad-Noor, Encik Weliyadi, Than, Aung Aimimuliani Adam, Dayang Siti Maryam Hanan, In the Kota Kinabalu coastal area, the episodic occurrences of harmful algal bloom (HAB) species had been reported more than a decade ago. But, the time of the occurrence and factors contributing to the occurrence are still inadequately understood. To fill the gap, a study using 4 years field data from 2007 to 2010 was conducted. Cell densities of two HAB species, physicochemical parameters such as temperature, salinity, pH and dissolved oxygen together with rainfall data, wind data and general influence of ENSO episodes were taken into account to identify the most probable factors that trigger the occurrence of HAB species in the Kota Kinabalu coastal waters. From the analysis, C. polykrikoides blooms after 1 to 2 days of rain and significantly high nutrient concentrations were recorded during the blooms. Other physicochemical parameters were almost the same during the bloom and non-bloom events. Climate phenomena like ENSO (El Niño Southern Oscillation) affected the occurrence of P. bahamense var. compressum and C. polykrikoides. P. bahamense var. compressum occurred during El Niño due to high salinity and no blooms were recorded during La Niña. This indicates that unusual climate condition suppressed the bloom formation. The results gained from this study provide important information in managing HAB species particularly in the Kota Kinabalu coastal area. Universiti Kebangsaan Malaysia 2014-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6811/1/03_Normawaty.pdf Normawaty Mohammad-Noor, and Encik Weliyadi, and Than, Aung and Aimimuliani Adam, and Dayang Siti Maryam Hanan, (2014) Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia. Sains Malaysiana, 43 (1). pp. 21-29. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	In the Kota Kinabalu coastal area, the episodic occurrences of harmful algal bloom (HAB) species had been reported more than a decade ago. But, the time of the occurrence and factors contributing to the occurrence are still inadequately understood. To fill the gap, a study using 4 years field data from 2007 to 2010 was conducted. Cell densities of two HAB species, physicochemical parameters such as temperature, salinity, pH and dissolved oxygen together with rainfall data, wind data and general influence of ENSO episodes were taken into account to identify the most probable factors that trigger the occurrence of HAB species in the Kota Kinabalu coastal waters. From the analysis, C. polykrikoides blooms after 1 to 2 days of rain and significantly high nutrient concentrations were recorded during the blooms. Other physicochemical parameters were almost the same during the bloom and non-bloom events. Climate phenomena like ENSO (El Niño Southern Oscillation) affected the occurrence of P. bahamense var. compressum and C. polykrikoides. P. bahamense var. compressum occurred during El Niño due to high salinity and no blooms were recorded during La Niña. This indicates that unusual climate condition suppressed the bloom formation. The results gained from this study provide important information in managing HAB species particularly in the Kota Kinabalu coastal area.
format	Article
author	Normawaty Mohammad-Noor, Encik Weliyadi, Than, Aung Aimimuliani Adam, Dayang Siti Maryam Hanan,
spellingShingle	Normawaty Mohammad-Noor, Encik Weliyadi, Than, Aung Aimimuliani Adam, Dayang Siti Maryam Hanan, Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia
author_facet	Normawaty Mohammad-Noor, Encik Weliyadi, Than, Aung Aimimuliani Adam, Dayang Siti Maryam Hanan,
author_sort	Normawaty Mohammad-Noor,
title	Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia
title_short	Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia
title_full	Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia
title_fullStr	Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia
title_full_unstemmed	Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia
title_sort	effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of kota kinabalu, sabah, malaysia
publisher	Universiti Kebangsaan Malaysia
publishDate	2014
url	http://journalarticle.ukm.my/6811/ http://journalarticle.ukm.my/6811/ http://journalarticle.ukm.my/6811/1/03_Normawaty.pdf
first_indexed	2023-09-18T19:47:57Z
last_indexed	2023-09-18T19:47:57Z
_version_	1777406027210162176

Effects of meteorological conditions on the occurrence of cochlodinium polykrikoides and pyrodinium bahamense var. compressum in coastal waters of Kota Kinabalu, Sabah, Malaysia

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