Alexandrium (Dinophyceae) species in Malaysian waters
A study was carried out to determine the presence of paralytic shellfish poisoning (PSP) toxin-producing dinoflagellates in the coastalwaters of Peninsula Malaysia. This followed first ever occurrences of PSP in the Straits of Malacca and the northeast coast of the peninsula. The toxic tropical dino...
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| Format: | Article |
| Language: | English |
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Elsevier
2002
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| Online Access: | http://ir.unimas.my/id/eprint/3205/ http://ir.unimas.my/id/eprint/3205/1/Alexandrium%20%28Dinophyceae%29%20species%20in%20Malaysian%20waters.pdf |
| _version_ | 1848835163133313024 |
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| author | Usup, G. Leaw, C. P. Asmat, Ahmad Teen, L. P. |
| author_facet | Usup, G. Leaw, C. P. Asmat, Ahmad Teen, L. P. |
| author_sort | Usup, G. |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | A study was carried out to determine the presence of paralytic shellfish poisoning (PSP) toxin-producing dinoflagellates in the coastalwaters of Peninsula Malaysia. This followed first ever occurrences of PSP in the Straits of Malacca and the northeast coast of the peninsula. The toxic tropical dinoflagellate Pyrodinium bahamense var. compressum was never encountered in any of the plankton samples. On the other hand, five species of Alexandrium were found. They were Alexandrium affine, Alexandrium leei, Alexandrium minutum, Alexandrium tamarense and Alexandrium tamiyavanichii. Not all species were present at all sites. A. tamiyavanichii was present only in the central to southern parts of the Straits of Malacca. A. tamarense was found in the northern part of the straits, while A. minutum was only found in samples from the northeast coast of the peninsula. A. leei and A. affine were found in both the north and south of the straits. Cultured isolates of A. minutum and A. tamiyavanichii were proven toxic by the receptor binding assay for PSP toxins but A. tamarense clones were not toxic. Mean toxin content for the A. tamiyavanichii and A. minutum clones were 26 and 15 fmol per cell STX equivalent, respectively. This study has provided evidence on the presence of PSP toxin-producing Alexandrium species in Malaysian waters which suggests that PSP could increase in importance in the future. |
| first_indexed | 2025-11-15T06:03:30Z |
| format | Article |
| id | unimas-3205 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:03:30Z |
| publishDate | 2002 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-32052015-03-20T05:13:20Z http://ir.unimas.my/id/eprint/3205/ Alexandrium (Dinophyceae) species in Malaysian waters Usup, G. Leaw, C. P. Asmat, Ahmad Teen, L. P. GE Environmental Sciences QL Zoology A study was carried out to determine the presence of paralytic shellfish poisoning (PSP) toxin-producing dinoflagellates in the coastalwaters of Peninsula Malaysia. This followed first ever occurrences of PSP in the Straits of Malacca and the northeast coast of the peninsula. The toxic tropical dinoflagellate Pyrodinium bahamense var. compressum was never encountered in any of the plankton samples. On the other hand, five species of Alexandrium were found. They were Alexandrium affine, Alexandrium leei, Alexandrium minutum, Alexandrium tamarense and Alexandrium tamiyavanichii. Not all species were present at all sites. A. tamiyavanichii was present only in the central to southern parts of the Straits of Malacca. A. tamarense was found in the northern part of the straits, while A. minutum was only found in samples from the northeast coast of the peninsula. A. leei and A. affine were found in both the north and south of the straits. Cultured isolates of A. minutum and A. tamiyavanichii were proven toxic by the receptor binding assay for PSP toxins but A. tamarense clones were not toxic. Mean toxin content for the A. tamiyavanichii and A. minutum clones were 26 and 15 fmol per cell STX equivalent, respectively. This study has provided evidence on the presence of PSP toxin-producing Alexandrium species in Malaysian waters which suggests that PSP could increase in importance in the future. Elsevier 2002 Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/3205/1/Alexandrium%20%28Dinophyceae%29%20species%20in%20Malaysian%20waters.pdf Usup, G. and Leaw, C. P. and Asmat, Ahmad and Teen, L. P. (2002) Alexandrium (Dinophyceae) species in Malaysian waters. Harmful Algae, 1. pp. 265-275. http://www.sciencedirect.com/science/article/pii/S1568988302000446 |
| spellingShingle | GE Environmental Sciences QL Zoology Usup, G. Leaw, C. P. Asmat, Ahmad Teen, L. P. Alexandrium (Dinophyceae) species in Malaysian waters |
| title | Alexandrium (Dinophyceae) species in Malaysian waters |
| title_full | Alexandrium (Dinophyceae) species in Malaysian waters |
| title_fullStr | Alexandrium (Dinophyceae) species in Malaysian waters |
| title_full_unstemmed | Alexandrium (Dinophyceae) species in Malaysian waters |
| title_short | Alexandrium (Dinophyceae) species in Malaysian waters |
| title_sort | alexandrium (dinophyceae) species in malaysian waters |
| topic | GE Environmental Sciences QL Zoology |
| url | http://ir.unimas.my/id/eprint/3205/ http://ir.unimas.my/id/eprint/3205/ http://ir.unimas.my/id/eprint/3205/1/Alexandrium%20%28Dinophyceae%29%20species%20in%20Malaysian%20waters.pdf |