An outbreak of domoic acid poisoning attributed to the pennate diatom Pseudonitzschia australis

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DOIResolve DOI: http://doi.org/10.1111/j.0022-3646.1992.00439.x
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TypeArticle
Journal titleJournal of Phycology
ISSN0022-3646
1529-8817
Volume28
Issue4
Pages439442
AbstractA bloom of the pennate diatom Pseudonitzschia australis Frenguelli (= Nitzschia pseudoseriata Hasle) occurring in Monterey Bay, California, in early September 1991 coincided with an episode of mortality in brown pelicans (Pelicanus occidentalis) and Brandt's cormorants (Phalacrocorax penicillatus). High levels of domoic acid (DA), the amnesic shellfish poisoning toxin, were recorded in the plankton samples. Furthermore, high levels of DA, as well as numerous remnants of P. australis frustules, were found in the stomach contents of affected birds and in the visceral contents of local anchovies, a principal food source of seabirds. This is the first confirmed report of DA poisoning since the original 1987 episode in Atlantic Canada caused by Nitzschia pungens Grunow forma multiseries Hasle. It suggests another species of planktonic pennate diatom is capable of producing DA and that herbivorous finfish can act as vectors for this toxin.
Publication date
LanguageEnglish
AffiliationNRC Institute for Marine Biosciences; National Research Council Canada
Peer reviewedYes
NPARC number23001034
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Record identifier49445fe6-2b67-41d6-9454-537d8954793f
Record created2016-12-01
Record modified2016-12-01
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