Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae)

Four tropical PSP toxins-producing dinoflagellates, Alexandrium minutum, Alexandrium tamiyavanichii, Alexandrium tamarense and Alexandrium peruvianum from Malaysian waters were studied to investigate the influences of salinity on growth and toxin production. Experiments were conducted on constant...

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Main Authors:	Lim, Po Teen, Ogata, T.
Format:	Article
Language:	English
Published:	Elsevier Ltd. 2005
Subjects:	SH Aquaculture. Fisheries. Angling
Online Access:	http://ir.unimas.my/17594/ http://ir.unimas.my/17594/ http://ir.unimas.my/17594/ http://ir.unimas.my/17594/1/Salinity%20effect%20on%20growth%20and%20toxin%20production%20of%20four%20tropical%20%28abstract%29.pdf

id	unimas-17594
recordtype	eprints
spelling	unimas-175942017-09-14T07:50:08Z http://ir.unimas.my/17594/ Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae) Lim, Po Teen Ogata, T. SH Aquaculture. Fisheries. Angling Four tropical PSP toxins-producing dinoflagellates, Alexandrium minutum, Alexandrium tamiyavanichii, Alexandrium tamarense and Alexandrium peruvianum from Malaysian waters were studied to investigate the influences of salinity on growth and toxin production. Experiments were conducted on constant temperature 25 8C, 140 mE mol mK2 sK1 and under 14:10 light:dark photo-cycle with salinity ranged from 2 to 30 psu. The PSP-toxin congeners, GTX 1–6, STX, dcSTX, NEO and C1–C2 were analysed by high performance liquid chromatography. Salinity tolerance of the four species in decreasing order is A. minutumOA. peruvianumOA. tamarenseOA. tamiyavanichii. Specific growth rates and maximum densities varied among these species with A. minutum recorded as the highest, 0.5 dayK1 and 6!104 cells mLK1. Toxin content decreased with elevated salinities in A. minutum, the highest toxin content was about 12 fmole cellK1 at 5 psu. In A. tamiyavanichii, toxin content peaked at optimal growth salinity (20 and 25 psu). Toxin content of A. tamarense, somehow peaked at sub-optimal growth salinity (15 and 30 psu). Results of this study implied that salinity fluctuation not only influenced the growth physiology but also toxin production of these species. Elsevier Ltd. 2005 Article PeerReviewed text en http://ir.unimas.my/17594/1/Salinity%20effect%20on%20growth%20and%20toxin%20production%20of%20four%20tropical%20%28abstract%29.pdf Lim, Po Teen and Ogata, T. (2005) Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae). Toxicon, 45 (6). pp. 699-710. ISSN 0041-0101 http://www.sciencedirect.com/science/article/pii/S004101010500019X doi : 10.1016/j.toxicon.2005.01.007
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Sarawak
building	UNIMAS Institutional Repository
collection	Online Access
language	English
topic	SH Aquaculture. Fisheries. Angling
spellingShingle	SH Aquaculture. Fisheries. Angling Lim, Po Teen Ogata, T. Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae)
description	Four tropical PSP toxins-producing dinoflagellates, Alexandrium minutum, Alexandrium tamiyavanichii, Alexandrium tamarense and Alexandrium peruvianum from Malaysian waters were studied to investigate the influences of salinity on growth and toxin production. Experiments were conducted on constant temperature 25 8C, 140 mE mol mK2 sK1 and under 14:10 light:dark photo-cycle with salinity ranged from 2 to 30 psu. The PSP-toxin congeners, GTX 1–6, STX, dcSTX, NEO and C1–C2 were analysed by high performance liquid chromatography. Salinity tolerance of the four species in decreasing order is A. minutumOA. peruvianumOA. tamarenseOA. tamiyavanichii. Specific growth rates and maximum densities varied among these species with A. minutum recorded as the highest, 0.5 dayK1 and 6!104 cells mLK1. Toxin content decreased with elevated salinities in A. minutum, the highest toxin content was about 12 fmole cellK1 at 5 psu. In A. tamiyavanichii, toxin content peaked at optimal growth salinity (20 and 25 psu). Toxin content of A. tamarense, somehow peaked at sub-optimal growth salinity (15 and 30 psu). Results of this study implied that salinity fluctuation not only influenced the growth physiology but also toxin production of these species.
format	Article
author	Lim, Po Teen Ogata, T.
author_facet	Lim, Po Teen Ogata, T.
author_sort	Lim, Po Teen
title	Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae)
title_short	Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae)
title_full	Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae)
title_fullStr	Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae)
title_full_unstemmed	Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae)
title_sort	salinity effect on growth and toxin production of four tropical alexandrium species (dinophyceae)
publisher	Elsevier Ltd.
publishDate	2005
url	http://ir.unimas.my/17594/ http://ir.unimas.my/17594/ http://ir.unimas.my/17594/ http://ir.unimas.my/17594/1/Salinity%20effect%20on%20growth%20and%20toxin%20production%20of%20four%20tropical%20%28abstract%29.pdf
first_indexed	2018-09-06T16:37:41Z
last_indexed	2018-09-06T16:37:41Z
_version_	1610876832314294272

Salinity effect on growth and toxin production of four tropical Alexandrium species (Dinophyceae)

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