An evaluation of Paralytic Shellfish Toxin occurrence and magnitude around the UK coast since 2008; using chemotaxonomy to maximise routine monitoring data

Lewis, A., Coates, L.N., Turner, A.D., Percy, L. and Lewis, J. 2016. An evaluation of Paralytic Shellfish Toxin occurrence and magnitude around the UK coast since 2008; using chemotaxonomy to maximise routine monitoring data. The 17th International Conference on Harmful Algae. Florianopolis, Brazil 09 - 14 Oct 2016

TitleAn evaluation of Paralytic Shellfish Toxin occurrence and magnitude around the UK coast since 2008; using chemotaxonomy to maximise routine monitoring data
AuthorsLewis, A., Coates, L.N., Turner, A.D., Percy, L. and Lewis, J.
TypeConference poster
Abstract

A dedicated monitoring programme exists within the UK for the analysis of marine biotoxins of microalgal origin, in shellfish from classified production areas. For England, Wales and Scotland this is currently delivered by Cefas on behalf of the Food Standards Agency (FSA) and Food Standards Scotland (FSS). This monitoring programme tests for three groups of toxins, including the paralytic shellfish toxins (PSTs), using chemical analytical techniques, as well as identifying their causative organisms, using light microscopy. Although toxicity and toxin profile within shellfish from around the UK is well documented, since the implementation of chemical analytical testing, the underlying causative microalgal species remain undetermined in most areas. This is due to a lack of resource within the monitoring programme to perform definitive identification following light microscopy and a lack of specific research work confirming the toxin producers in all areas. Presented here is an analysis of PST shellfish toxicity data from the UK monitoring programme displaying trends in distribution and magnitude of PSTs in shellfish over the last 15 years of monitoring. Further to this, toxin profile data generated following the implementation of HPLC-FLD for monitoring PSTs is analysed. This PST toxin profile analysis is used to offer a possible proxy method for the identification of microalgal species by their differing PST toxin profile as presented in the literature. The possible distribution of causative organisms is evaluated using this chemotaxonomic technique to allow for targeted future work.

KeywordsParalytic Shellfish Toxins (PSTs), Alexandrium minutum, Great Britain, chemotaxonomy, Routine monitoring
Year2016
ConferenceThe 17th International Conference on Harmful Algae
Accepted author manuscript
Publication dates
Completed2016
FunderCentre for the Environment, Fisheries and Aquaculture Science (CEFAS)

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