Neurotoxins in a toxic red tide of Heterosigma akashiwo (Raphidophyceae) in Kagoshima Bay, Japan

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Abstract
In April 1995, an unusual large‐scale red tide of Heterosigma akashiwo (Hada) Hada occurred, causing massive fish kills in Kagoshima Bay, Japan. Four neurotoxic components, HaTx‐i, HaTx‐iia, HaTx‐iib and HaTx‐iii, which corresponded to brevetoxin components. PbTx‐2. PbTx‐9, PbTx‐3 and oxidized PbTx‐2, were inferred from analysis of Heterosigma red tide toxins on TLC and HPLC.
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