Risk of ciguatoxins is shaped by Gambierdiscus community structure. [PDF]
PLoS ONECiguatoxins (CTXs) are produced by marine microbial eukaryotes (Gambierdiscus/Fukuyoa, Dinophyta: Alveolata) that live epiphytically on macroalgae and other substrates. When CTXs accumulate in seafood they cause Ciguatera Poisoning (CP), which affects ca.
Kirsty F Smith +14 more
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Model of the Origin of a Ciguatoxic Grouper (Plectropomus leopardus) [PDF]
Toxins, 2023 Published data were used to model the transfer of ciguatoxins (CTX) across three trophic levels of a marine food chain on the Great Barrier Reef (GBR), Australia, to produce a mildly toxic common coral trout (Plectropomus leopardus), one of the most ...
Michael J. Holmes, Richard J. Lewis
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Morphological, Toxicological, and Biochemical Characterization of Two Species of Gambierdiscus from Bahía de La Paz, Gulf of California [PDF]
Marine DrugsWe describe five new isolates of two Gambierdiscus species from Bahía de La Paz in the southern Gulf of California. Batch cultures of Gambierdiscus were established for morphological characterization using light microscopy (LM) and scanning electron ...
Leyberth José Fernández-Herrera +7 more
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Targeted Metabolite Fingerprints of Thirteen Gambierdiscus, Five Coolia and Two Fukuyoa Species [PDF]
Marine DrugsThe genus Gambierdiscus produces an array of bioactive hydrophilic and lipophilic secondary metabolites that range in mode of action and toxicity. In this study, the metabolite fingerprint was mapped for thirteen Gambierdiscus, five Coolia and two ...
J. Sam Murray +12 more
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Reviewing Evidence for Disturbance to Coral Reefs Increasing the Risk of Ciguatera [PDF]
ToxinsThe hypothesis that disturbance to coral reefs creates new surfaces that increase the risk of ciguatera is premised upon the increased algal substrates that develop on these surfaces being colonised by high ciguatoxin (CTX)-producing Gambierdiscus ...
Michael J. Holmes, Richard J. Lewis
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The Goldilocks Effect: The Role of Temperature in Influencing Dinoflagellate Growth [PDF]
Current: The Journal of Marine EducationCoral reef ecosystems, often referred to as the ‘rainforests of the sea,’ are vibrant ecosystems formed by millions of living coral polyps. Despite covering less than 1% of the ocean floor, coral reefs deliver vital benefits, including shoreline ...
Mindy L. Richlen, Mary Carla Curran
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Modelling the Bioaccumulation of Ciguatoxins in Parrotfish on the Great Barrier Reef Reveals Why Biomagnification Is Not a Property of Ciguatoxin Food Chains [PDF]
ToxinsWe adapt previously developed conceptual and numerical models of ciguateric food chains on the Great Barrier Reef, Australia, to model the bioaccumulation of ciguatoxins (CTXs) in parrotfish, the simplest food chain with only two trophic levels.
Michael J. Holmes, Richard J. Lewis
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Comparative Study on the Performance of Three Detection Methods for the Quantification of Pacific Ciguatoxins in French Polynesian Strains of Gambierdiscus polynesiensis [PDF]
Marine Drugs, 2022 Gambierdiscus and Fukuyoa dinoflagellates produce a suite of secondary metabolites, including ciguatoxins (CTXs), which bioaccumulate and are further biotransformed in fish and marine invertebrates, causing ciguatera poisoning when consumed by humans ...
Hélène Taiana Darius +12 more
doaj +2 more sources
Metabarcoding Reveals Diversity of Potentially Toxic Algae in Papeete Port (Tahiti) [PDF]
ToxinsHarmful algae are transported in various compartments of maritime vessels, making ports with heavy maritime traffic potential hotspots for their introduction and spread.
Sara Fernandez +3 more
doaj +2 more sources
A General Food Chain Model for Bioaccumulation of Ciguatoxin into Herbivorous Fish in the Pacific Ocean Suggests Few Gambierdiscus Species Can Produce Poisonous Herbivores, and Even Fewer Can Produce Poisonous Higher Trophic Level Fish [PDF]
ToxinsWe adapt previous conceptual and numerical models of ciguateric food chains for the bioaccumulation of Pacific-ciguatoxin-1 (P-CTX-1) to a general model for bioaccumulation of P-CTX3C by parrotfish (Scarus frenatus, S. niger, and S.
Michael J. Holmes, Richard J. Lewis
doaj +2 more sources