1997•Aquaculture ResearchRequires access

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

Saleha Khan, Osamu Arakawa, Y. Onoue

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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Key concepts: Heterosigma akashiwo, Red tide, Bay, Biology, Algal bloom, Fish kill, Zoology, Ecology