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Alexandrium in the Black Sea — identity, ecology and PSP toxicity

Alexandrium in the Black Sea — identity, ecology and PSP toxicity Alexandrium cf. tamarense was recorded for the first time along the north-eastern coast of the Black Sea in July 2001. Since then, it has been observed annually between May and October. A maximum density of Alexandrium spp. of 9 000 cells l−1 was recorded during August 2004. Examination of the Black Sea Alexandrium spp. by scanning electron microscopy showed both A. tamarense and A. minutum to be present. Monitoring during 2000–2004 included the collection of mussel hepatopancreas samples and subsequent analysis for paralytic shellfish poisoning (PSP) toxins. A receptor-binding assay showed a maximum value of 14μg STXdiHCl equivalents 100g−1 tissue to correspond to ambient concentrations of A. tamarense of 300 cells l−1. Analysis of the PSP toxins by liquid chromatography with fluorescence detection showed the presence of GTX2, GTX3 and GTX5 in mussel hepatopancreas extracts. PSP in humans has not been reported in the Black Sea region of Russia. Nevertheless, the presence of Alexandrium spp and of PSP toxins in shellfish are compelling reasons for the introduction of phycotoxin control methods and monitoring in Russian waters. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png African Journal of Marine Science Taylor & Francis

Alexandrium in the Black Sea — identity, ecology and PSP toxicity

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Alexandrium in the Black Sea — identity, ecology and PSP toxicity

Abstract

Alexandrium cf. tamarense was recorded for the first time along the north-eastern coast of the Black Sea in July 2001. Since then, it has been observed annually between May and October. A maximum density of Alexandrium spp. of 9 000 cells l−1 was recorded during August 2004. Examination of the Black Sea Alexandrium spp. by scanning electron microscopy showed both A. tamarense and A. minutum to be present. Monitoring during 2000–2004 included the collection of mussel...
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Publisher
Taylor & Francis
Copyright
Copyright Taylor & Francis Group, LLC
ISSN
1814-2338
eISSN
1814-232X
DOI
10.2989/18142320609504149
Publisher site
See Article on Publisher Site

Abstract

Alexandrium cf. tamarense was recorded for the first time along the north-eastern coast of the Black Sea in July 2001. Since then, it has been observed annually between May and October. A maximum density of Alexandrium spp. of 9 000 cells l−1 was recorded during August 2004. Examination of the Black Sea Alexandrium spp. by scanning electron microscopy showed both A. tamarense and A. minutum to be present. Monitoring during 2000–2004 included the collection of mussel hepatopancreas samples and subsequent analysis for paralytic shellfish poisoning (PSP) toxins. A receptor-binding assay showed a maximum value of 14μg STXdiHCl equivalents 100g−1 tissue to correspond to ambient concentrations of A. tamarense of 300 cells l−1. Analysis of the PSP toxins by liquid chromatography with fluorescence detection showed the presence of GTX2, GTX3 and GTX5 in mussel hepatopancreas extracts. PSP in humans has not been reported in the Black Sea region of Russia. Nevertheless, the presence of Alexandrium spp and of PSP toxins in shellfish are compelling reasons for the introduction of phycotoxin control methods and monitoring in Russian waters.

Journal

African Journal of Marine Science – Taylor & Francis

Published: Sep 1, 2006

Keywords: ALEXANDRIUM; BLACK SEA; HAB; PHYCOTOXINS; PHYTOPLANKTON; SAXITOXIN; TOXIC ALGAE

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