First record of toxic Gymnodinium catenatum off'the west coast of Sabah Malaysia
Gymnodinium catenatum, a toxic dinoflagellate was found to co-occurs in high cell densities with the bloom-forming Cochlodinium polykrikoides off the west coast of Sabah. maximum cell densities of G. catenatum recorded reached 1.24 x 105 cell/L, relative to C. polykrikoides densities of 1.54 x 107 c...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/32130/ http://irep.iium.edu.my/32130/1/First_record_of_G_catenatum_in_malaysia.pdf |
| Summary: | Gymnodinium catenatum, a toxic dinoflagellate was found to co-occurs in high cell densities with the bloom-forming Cochlodinium polykrikoides off the west coast of Sabah. maximum cell densities of G. catenatum recorded reached 1.24 x 105 cell/L, relative to C. polykrikoides densities of 1.54 x 107 cells/L. Gymnodinium catenatum forms long chains of up to 30 cells and is characterized by cells which are anterior-posteriorly compressed and with cell sizes ranging from 30-40 um. Toxicity studies based on RP-HPLC showed that this species produced PSP toxins. The occurrence of this species suggests increased PSP problems in addition to the presen of Pyrodinium bahamense var compressum, a PSP causing species in the west coast of Sabah |
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