Publications by authors named "E Abadie"
The dinoflagellate Gymnodinium catenatum is considered the primary cause of recurrent paralytic shellfish toxins (PSTs) in shellfish on the Moroccan Mediterranean coasts. The impacts of key environmental factors on the growth, cell yield, cell size and PST content of G. catenatum were determined.
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- Consumption of seafood contaminated by phycotoxins from harmful algae, like V. rugosum, poses significant public health risks, with a focus on neurotoxins called pinnatoxins (PnTXs).
- The study developed linear mixed models based on environmental data from four Mediterranean lagoons to predict the presence of V. rugosum and PnTX G contamination in mussels, finding strong correlations with seawater temperature.
- Results indicated that 25% of mussel consumers might exceed safe dietary limits during warmer months, leading to recommendations for ongoing monitoring of these harmful algae and toxins.
is an emerging benthopelagic neuro-toxic dinoflagellate species responsible for seasonal Pinnatoxins and Portimines contaminations of shellfish and marine animals. This species is challenging to detect in the environment, as it is present in low abundance and difficult to be identified using light microscopy. In this work, we developed a method using artificial substrates coupled with qPCR (AS-qPCR) to detect in a marine environment.
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- Mediterranean waters have been impacted by environmental changes over recent decades, leading to changes in phytoplankton populations, especially increases in harmful algal blooms (HABs).
- Biweekly monitoring of toxic phytoplankton in western Morocco revealed high levels of Domoic Acid (DA) producers like Pseudo-nitzschia spp. and Dinophysis species, with significant concentrations found in local mollusks.
- The presence of various lipophilic shellfish toxins (LSTs) and Domoic Acid in cockles and clams indicates that harmful algae are directly affecting marine life, raising concerns for the region's ecological health.
Pinnatoxins (PnTX) and Portimines (Prtn), two toxins produced by the benthic dinoflagellate , are known to be lethal to mice after intraperitoneal or oral administration. They are also known to accumulate in shellfish such as mussels and clams, but their effect on fish and the upper food chain remains unknown. In this work, juveniles of the fish (Mullet) were exposed to a strain of producing PnTX G and Prtn A.
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