Pseudo-nitzschia physiological ecology, phylogeny, toxicity, monitoring and impacts on ecosystem health


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dc.contributor.author Trainer, Vera L.
dc.contributor.author Bates, Stephen S.
dc.contributor.author Lundholm, Nina
dc.contributor.author Thessen, Anne E.
dc.contributor.author Cochlan, William P.
dc.contributor.author Adams, Nicolaus G.
dc.contributor.author Trick, Charles G.
dc.date.accessioned 2012-04-10T12:44:43Z
dc.date.available 2012-04-10T12:44:43Z
dc.date.issued 2011-11-03
dc.identifier.citation Harmful Algae 14 (2012): 271-300 en_US
dc.identifier.uri http://hdl.handle.net/1912/5118
dc.description This paper is not subject to U.S. copyright. The definitive version was published in Harmful Algae 14 (2012): 271-300, doi:10.1016/j.hal.2011.10.025. en_US
dc.description.abstract Over the last decade, our understanding of the environmental controls on Pseudo-nitzschia blooms and domoic acid (DA) production has matured. Pseudo-nitzschia have been found along most of the world's coastlines, while the impacts of its toxin, DA, are most persistent and detrimental in upwelling systems. However, Pseudo-nitzschia and DA have recently been detected in the open ocean's high-nitrate, low-chlorophyll regions, in addition to fjords, gulfs and bays, showing their presence in diverse environments. The toxin has been measured in zooplankton, shellfish, crustaceans, echinoderms, worms, marine mammals and birds, as well as in sediments, demonstrating its stable transfer through the marine food web and abiotically to the benthos. The linkage of DA production to nitrogenous nutrient physiology, trace metal acquisition, and even salinity, suggests that the control of toxin production is complex and likely influenced by a suite of environmental factors that may be unique to a particular region. Advances in our knowledge of Pseudo-nitzschia sexual reproduction, also in field populations, illustrate its importance in bloom dynamics and toxicity. The combination of careful taxonomy and powerful new molecular methods now allow for the complete characterization of Pseudo-nitzschia populations and how they respond to environmental changes. Here we summarize research that represents our increased knowledge over the last decade of Pseudo-nitzschia and its production of DA, including changes in worldwide range, phylogeny, physiology, ecology, monitoring and public health impacts. en_US
dc.format.mimetype application/pdf
dc.language.iso en_US en_US
dc.publisher Elsevier B.V. en_US
dc.relation.uri http://dx.doi.org/10.1016/j.hal.2011.10.025
dc.subject Algal phylogeny en_US
dc.subject Algal taxonomy en_US
dc.subject Amnesic shellfish poisoning en_US
dc.subject Diatom sexual reproduction en_US
dc.subject Domoic acid en_US
dc.subject Harmful algal bloom en_US
dc.subject Pseudo-nitzschia en_US
dc.title Pseudo-nitzschia physiological ecology, phylogeny, toxicity, monitoring and impacts on ecosystem health en_US
dc.type Article en_US
dc.identifier.doi 10.1016/j.hal.2011.10.025

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