A survey of Dinophysis spp. and their potential to cause diarrhetic shellfish poisoning in coastal waters of the United States

Nour Ayache¹, Brian D Bill², Michael L Brosnahan³, Lisa Campbell^{4

5}, Jonathan R Deeds⁶, James M Fiorendino⁴, Christopher J Gobler⁷, Sara M Handy⁶, Neil Harrington⁸, David M Kulis³, Pearse McCarron⁹, Christopher O Miles⁹, Stephanie K Moore¹⁰, Satoshi Nagai¹¹, Vera L Trainer¹², Jennifer L Wolny⁶, Craig S Young⁷, Juliette L Smith¹

Affiliations

¹ Virginia Institute of Marine Science, William & Mary, Gloucester Point, Virginia, 23062, USA.
² Environmental and Fisheries Science Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, Washington, 98112, USA.
³ Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, 02543, USA.
⁴ Department of Oceanography and Department of Biology, Texas A&M University, College Station, Texas, 77843, USA.
⁵ Department of Biology, Texas A&M University, College Station, Texas, 77843, USA.
⁶ Office of Regulatory Science, Center for Food Safety and Applied Nutrition, United States Food and Drug Administration, College Park, Maryland, 20740, USA.
⁷ School of Marine and Atmospheric Sciences, Stony Brook University, Southampton, New York, 11968, USA.
⁸ Department of Natural Resources, Jamestown S'Klallam Tribe, Sequim, Washington, 98382, USA.
⁹ Biotoxin Metrology, National Research Council Canada, Halifax, Nova Scotia, B3H 3Z1, Canada.
¹⁰ Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, Washington, 98112, USA.
¹¹ Japan Fisheries Research and Education Agency, 2-12-4 Fukuura, Kanazawa, Yokohama, Kanagawa, 236-8648, Japan.
¹² Olympic Natural Resources Center, School of Environmental and Forest Sciences, University of Washington, Box 352100, Seattle, Washington, 98195, USA.

PMID: 36964950
DOI: 10.1111/jpy.13331

A survey of Dinophysis spp. and their potential to cause diarrhetic shellfish poisoning in coastal waters of the United States

Nour Ayache et al. J Phycol. 2023 Aug.

. 2023 Aug;59(4):658-680.

doi: 10.1111/jpy.13331. Epub 2023 Apr 14.

Authors

Affiliations

¹ Virginia Institute of Marine Science, William & Mary, Gloucester Point, Virginia, 23062, USA.
² Environmental and Fisheries Science Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, Washington, 98112, USA.
³ Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, 02543, USA.
⁴ Department of Oceanography and Department of Biology, Texas A&M University, College Station, Texas, 77843, USA.
⁵ Department of Biology, Texas A&M University, College Station, Texas, 77843, USA.
⁶ Office of Regulatory Science, Center for Food Safety and Applied Nutrition, United States Food and Drug Administration, College Park, Maryland, 20740, USA.
⁷ School of Marine and Atmospheric Sciences, Stony Brook University, Southampton, New York, 11968, USA.
⁸ Department of Natural Resources, Jamestown S'Klallam Tribe, Sequim, Washington, 98382, USA.
⁹ Biotoxin Metrology, National Research Council Canada, Halifax, Nova Scotia, B3H 3Z1, Canada.
¹⁰ Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, Washington, 98112, USA.
¹¹ Japan Fisheries Research and Education Agency, 2-12-4 Fukuura, Kanazawa, Yokohama, Kanagawa, 236-8648, Japan.
¹² Olympic Natural Resources Center, School of Environmental and Forest Sciences, University of Washington, Box 352100, Seattle, Washington, 98195, USA.

PMID: 36964950
DOI: 10.1111/jpy.13331

Abstract

Multiple species of the genus Dinophysis produce diarrhetic shellfish toxins (okadaic acid and Dinophysis toxins, OA/DTXs analogs) and/or pectenotoxins (PTXs). Only since 2008 have DSP events (illnesses and/or shellfish harvesting closures) become recognized as a threat to human health in the United States. This study characterized 20 strains representing five species of Dinophysis spp. isolated from three US coastal regions that have experienced DSP events: the Northeast/Mid-Atlantic, the Gulf of Mexico, and the Pacific Northwest. Using a combination of morphometric and DNA-based evidence, seven Northeast/Mid-Atlantic isolates and four Pacific Northwest isolates were classified as D. acuminata, a total of four isolates from two coasts were classified as D. norvegica, two isolates from the Pacific Northwest coast were identified as D. fortii, and three isolates from the Gulf of Mexico were identified as D. ovum and D. caudata. Toxin profiles of D. acuminata and D. norvegica varied by their geographical origin within the United States. Cross-regional comparison of toxin profiles was not possible with the other three species; however, within each region, distinct species-conserved profiles for isolates of D. fortii, D. ovum, and D. caudata were observed. Historical and recent data from various State and Tribal monitoring programs were compiled and compared, including maximum recorded cell abundances of Dinophysis spp., maximum concentrations of OA/DTXs recorded in commercial shellfish species, and durations of harvesting closures, to provide perspective regarding potential for DSP impacts to regional public health and shellfish industry.

Keywords: Dinophysis; diarrhetic shellfish poisoning; harmful algal bloom; toxin profiles.

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References

REFERENCES

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A survey of Dinophysis spp. and their potential to cause diarrhetic shellfish poisoning in coastal waters of the United States

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A survey of Dinophysis spp. and their potential to cause diarrhetic shellfish poisoning in coastal waters of the United States

Authors

Affiliations

Abstract

References

REFERENCES

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