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Latitudinal distribution of historic pectenotoxins-2 (PTX2) events in Chile associated with Dinophysis acuminata. Asterisks indicate sites of cell maxima (integrated 0–10 or 0–15 m tube samples) during the three most severe events in Bío Bío (* max. 39,520 cells L−1), Los Lagos (** max. 11,300 cells L−1) and Aysén (*** max. 6,800 cells L−1) regions in spring 2019 and summers 2008 and 2019, respectively.
