Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK
Planktonic Dinophysis spp. and epiphytic Prorocentrum lima (Ehrenberg) Dodge are known dinoflagellate producers of okadaic acid (OA) and dinophysistoxins (DTX), causative phycotoxins of diarrhetic shellfish poisoning (DSP). Underestimation of toxic dinoflagellates associated with a toxic event may b...
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ftsouthampton:oai:eprints.soton.ac.uk:20383 2023-07-30T04:03:04+02:00 Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK Foden, J. Purdie, D.A. Morris, S. Nascimento, S. 2005 https://eprints.soton.ac.uk/20383/ unknown Foden, J., Purdie, D.A., Morris, S. and Nascimento, S. (2005) Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK. Harmful Algae, 4 (6), 1063-1074. (doi:10.1016/j.hal.2005.03.004 <http://dx.doi.org/10.1016/j.hal.2005.03.004>). Article PeerReviewed 2005 ftsouthampton https://doi.org/10.1016/j.hal.2005.03.004 2023-07-09T20:36:31Z Planktonic Dinophysis spp. and epiphytic Prorocentrum lima (Ehrenberg) Dodge are known dinoflagellate producers of okadaic acid (OA) and dinophysistoxins (DTX), causative phycotoxins of diarrhetic shellfish poisoning (DSP). Underestimation of toxic dinoflagellates associated with a toxic event may be due to the lack of sampling of species with epiphytic and epibenthic strategies, such as P. lima. As Dinophysis spp. is not found in the Fleet Lagoon, Dorset, but previous DSP events have closed the Crassostrea gigas oyster farm, P. lima is the most likely causative organism. A field assay for separating microalgal epiphytes and concentrating wild cells on to filters was successfully applied to sub-samples of a variety of macroalgae and macrophytes (seagrass) collected from the Fleet during summer 2002. P. lima was present in increasing cell densities on most substratum species, over the sampling period, from 102 to 103 cells g?1 fresh weight (FW) plant biomass. LC–MS analysis detected OA and DTX-1 in extracts of wild P. lima cells, in ratios characteristic of P. lima strains previously isolated from the Fleet. No toxins, however, were detected in oyster flesh. Article in Journal/Newspaper Crassostrea gigas University of Southampton: e-Prints Soton Harmful Algae 4 6 1063 1074 |
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Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
Planktonic Dinophysis spp. and epiphytic Prorocentrum lima (Ehrenberg) Dodge are known dinoflagellate producers of okadaic acid (OA) and dinophysistoxins (DTX), causative phycotoxins of diarrhetic shellfish poisoning (DSP). Underestimation of toxic dinoflagellates associated with a toxic event may be due to the lack of sampling of species with epiphytic and epibenthic strategies, such as P. lima. As Dinophysis spp. is not found in the Fleet Lagoon, Dorset, but previous DSP events have closed the Crassostrea gigas oyster farm, P. lima is the most likely causative organism. A field assay for separating microalgal epiphytes and concentrating wild cells on to filters was successfully applied to sub-samples of a variety of macroalgae and macrophytes (seagrass) collected from the Fleet during summer 2002. P. lima was present in increasing cell densities on most substratum species, over the sampling period, from 102 to 103 cells g?1 fresh weight (FW) plant biomass. LC–MS analysis detected OA and DTX-1 in extracts of wild P. lima cells, in ratios characteristic of P. lima strains previously isolated from the Fleet. No toxins, however, were detected in oyster flesh. |
format |
Article in Journal/Newspaper |
author |
Foden, J. Purdie, D.A. Morris, S. Nascimento, S. |
spellingShingle |
Foden, J. Purdie, D.A. Morris, S. Nascimento, S. Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK |
author_facet |
Foden, J. Purdie, D.A. Morris, S. Nascimento, S. |
author_sort |
Foden, J. |
title |
Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK |
title_short |
Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK |
title_full |
Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK |
title_fullStr |
Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK |
title_full_unstemmed |
Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK |
title_sort |
epiphytic abundance and toxicity of prorocentrum lima populations in the fleet lagoon, uk |
publishDate |
2005 |
url |
https://eprints.soton.ac.uk/20383/ |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_relation |
Foden, J., Purdie, D.A., Morris, S. and Nascimento, S. (2005) Epiphytic abundance and toxicity of Prorocentrum lima populations in the Fleet Lagoon, UK. Harmful Algae, 4 (6), 1063-1074. (doi:10.1016/j.hal.2005.03.004 <http://dx.doi.org/10.1016/j.hal.2005.03.004>). |
op_doi |
https://doi.org/10.1016/j.hal.2005.03.004 |
container_title |
Harmful Algae |
container_volume |
4 |
container_issue |
6 |
container_start_page |
1063 |
op_container_end_page |
1074 |
_version_ |
1772814008668127232 |