Staff View: Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia

Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia

Mass mortality of fish (∼8,500 fishes), mainly Oreochromis placidus, was noted in a man-made lake located at Kuching, Sarawak (Malaysia). A field investigation was conducted to collect water samples and fishes. Patches of discoloration in brick red were observed in the lake and clear oil layer was f...

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Main Authors:	Teng, Sing Tung, Law, Ing Kuo, Afiqah Hamilton, Hanifah, Othman, Bojo, Farah Akmal, Idrus, Aini Hannani Naqiah, Abdul Mannaf, Lim, Po Teen, Leaw, Chui Pin
Format:	Article
Language:	English
Published:	The Plankton Society of Japan, The Japanese Association of Benthology 2021
Subjects:	Q Science (General) QK Botany
Online Access:	http://ir.unimas.my/id/eprint/34453/1/Bloom%20of%20a%20freshwater%20green%20alga%20Botryococcus%20braunii%20%28Botryococcaceae%2C%20Trebouxiophyceae%29%20-%20Copy.pdf http://ir.unimas.my/id/eprint/34453/ https://www.jstage.jst.go.jp/article/pbr/16/1/16_P160107/_article/-char/en
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id	my.unimas.ir.34453
record_format	eprints
spelling	my.unimas.ir.344532021-02-19T07:04:04Z http://ir.unimas.my/id/eprint/34453/ Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia Teng, Sing Tung Law, Ing Kuo Afiqah Hamilton, Hanifah Othman, Bojo Farah Akmal, Idrus Aini Hannani Naqiah, Abdul Mannaf Lim, Po Teen Leaw, Chui Pin Q Science (General) QK Botany Mass mortality of fish (∼8,500 fishes), mainly Oreochromis placidus, was noted in a man-made lake located at Kuching, Sarawak (Malaysia). A field investigation was conducted to collect water samples and fishes. Patches of discoloration in brick red were observed in the lake and clear oil layer was found on the surface of the water. Microscopic observation and enumeration of the water samples showed that the plankton composition was dominated by a green algal species Botryococcus sp., with the colony densities ranging 1.2×103–7.4×106 colonies L−1. Detailed morphological assessment by light microscopy revealed the dominant species as Botryococcus braunii Kützing. Molecular characterization using an rDNA marker further supported the species identity as B. braunii in the L race. Fish gill observation showed that cells of B. braunii and the oily substances were found in the dead fish gills. The race-L B. braunii bloom was reported, for the first time, to be associated with a fish kill event in a freshwater lake in Malaysia and confirmed the species as one of the algal types causing harmful effects to the environment. The Plankton Society of Japan, The Japanese Association of Benthology 2021-02 Article PeerReviewed text en http://ir.unimas.my/id/eprint/34453/1/Bloom%20of%20a%20freshwater%20green%20alga%20Botryococcus%20braunii%20%28Botryococcaceae%2C%20Trebouxiophyceae%29%20-%20Copy.pdf Teng, Sing Tung and Law, Ing Kuo and Afiqah Hamilton, Hanifah and Othman, Bojo and Farah Akmal, Idrus and Aini Hannani Naqiah, Abdul Mannaf and Lim, Po Teen and Leaw, Chui Pin (2021) Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia. Plankton and Benthos Research, 16 (1). pp. 59-68. ISSN 1880-8247 https://www.jstage.jst.go.jp/article/pbr/16/1/16_P160107/_article/-char/en DOI:org/10.3800/pbr.16.59
institution	Universiti Malaysia Sarawak
building	Centre for Academic Information Services (CAIS)
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sarawak
content_source	UNIMAS Institutional Repository
url_provider	http://ir.unimas.my/
language	English
topic	Q Science (General) QK Botany
spellingShingle	Q Science (General) QK Botany Teng, Sing Tung Law, Ing Kuo Afiqah Hamilton, Hanifah Othman, Bojo Farah Akmal, Idrus Aini Hannani Naqiah, Abdul Mannaf Lim, Po Teen Leaw, Chui Pin Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia
description	Mass mortality of fish (∼8,500 fishes), mainly Oreochromis placidus, was noted in a man-made lake located at Kuching, Sarawak (Malaysia). A field investigation was conducted to collect water samples and fishes. Patches of discoloration in brick red were observed in the lake and clear oil layer was found on the surface of the water. Microscopic observation and enumeration of the water samples showed that the plankton composition was dominated by a green algal species Botryococcus sp., with the colony densities ranging 1.2×103–7.4×106 colonies L−1. Detailed morphological assessment by light microscopy revealed the dominant species as Botryococcus braunii Kützing. Molecular characterization using an rDNA marker further supported the species identity as B. braunii in the L race. Fish gill observation showed that cells of B. braunii and the oily substances were found in the dead fish gills. The race-L B. braunii bloom was reported, for the first time, to be associated with a fish kill event in a freshwater lake in Malaysia and confirmed the species as one of the algal types causing harmful effects to the environment.
format	Article
author	Teng, Sing Tung Law, Ing Kuo Afiqah Hamilton, Hanifah Othman, Bojo Farah Akmal, Idrus Aini Hannani Naqiah, Abdul Mannaf Lim, Po Teen Leaw, Chui Pin
author_facet	Teng, Sing Tung Law, Ing Kuo Afiqah Hamilton, Hanifah Othman, Bojo Farah Akmal, Idrus Aini Hannani Naqiah, Abdul Mannaf Lim, Po Teen Leaw, Chui Pin
author_sort	Teng, Sing Tung
title	Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia
title_short	Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia
title_full	Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia
title_fullStr	Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia
title_full_unstemmed	Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia
title_sort	bloom of a freshwater green alga botryococcus braunii (botryococcaceae, trebouxiophyceae) and the associated mass fish mortality in a man-made lake, sarawak, malaysia
publisher	The Plankton Society of Japan, The Japanese Association of Benthology
publishDate	2021
url	http://ir.unimas.my/id/eprint/34453/1/Bloom%20of%20a%20freshwater%20green%20alga%20Botryococcus%20braunii%20%28Botryococcaceae%2C%20Trebouxiophyceae%29%20-%20Copy.pdf http://ir.unimas.my/id/eprint/34453/ https://www.jstage.jst.go.jp/article/pbr/16/1/16_P160107/_article/-char/en
_version_	1692995425916682240
score	13.211869

Bloom of a freshwater green alga Botryococcus braunii (Botryococcaceae, Trebouxiophyceae) and the associated mass fish mortality in a man-made lake, Sarawak, Malaysia

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