Abstract
Diarrhetic Shellfish Poisoning (DSP) is an acute intoxication caused by the consumption of contaminated shellfish, which is common in many regions of the world. To safeguard human health, most countries implement programs focused on the surveillance of toxic phytoplankton abundance and shellfish toxicity levels, an effort that can be complemented by a deeper understanding of the underlying phenomena. In this work, we identify patterns of seasonality in shellfish toxicity across the Portuguese coast and analyse time-lagged correlations between this toxicity and various potential risk factors. We extend the understanding of these relations through the introduction of temporal lags, allowing the analysis of time series at different points in time and the study of the predictive power of the tested variables. This study confirms previous findings about toxicity seasonality patterns on the Portuguese coast and provides further quantitative data about the relations between shellfish toxicity and geographical location, shellfish species, toxic phytoplankton abundances, and environmental conditions. Furthermore, multiple pairs of areas and shellfish species are identified as having correlations high enough to allow for a predictive analysis. These results represent the first step towards understanding the dynamics of DSP toxicity in Portuguese shellfish producing areas, such as temporal and spatial variability, and towards the development of a shellfish safety forecasting system.
Funder
European Commission
Fundação para a Ciência e Tecnologia
Subject
Health, Toxicology and Mutagenesis,Toxicology
Reference45 articles.
1. Okadaic acid, a cytotoxic polyether from two marine sponges of the genus Halichondria
2. Isolation and structural elucidation of the causative toxin of the diarrhetic shellfish poisoning.
3. Occurrence of new type of toxic shellfish in Japan and chemical properties of the toxin;Yasumoto;Dev. Mar. Biol.,1979
4. Esters of okadaic acid and dinophysistoxin-2 in Portuguese bivalves related to human poisonings
5. Council Directive 91/492/EEC of 15 July 1991 laying down the health conditions for the production and the placing on the market of live bivalve molluscs;Off. J. Eur. Communities,1991
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