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dc.contributor.authorBowers, Holly A.  Concept link
dc.contributor.authorRyan, John P.  Concept link
dc.contributor.authorHayashi, Kendra  Concept link
dc.contributor.authorWoods, April  Concept link
dc.contributor.authorMarin, Roman  Concept link
dc.contributor.authorSmith, G. Jason  Concept link
dc.contributor.authorHubbard, Katherine A.  Concept link
dc.contributor.authorDoucette, Gregory J.  Concept link
dc.contributor.authorMikulski, Christina M.  Concept link
dc.contributor.authorGellene, Alyssa G.  Concept link
dc.contributor.authorZhang, Yanwu  Concept link
dc.contributor.authorKudela, Raphael M.  Concept link
dc.contributor.authorCaron, David A.  Concept link
dc.contributor.authorBirch, James M.  Concept link
dc.contributor.authorScholin, Christopher A.  Concept link
dc.date.accessioned2018-09-25T15:24:33Z
dc.date.available2018-09-25T15:24:33Z
dc.date.issued2018-08
dc.identifier.urihttps://hdl.handle.net/1912/10593
dc.descriptionAuthor Posting. © The Author(s), 2018. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution. The definitive version was published in Harmful Algae 78 (2018): 129-141, doi:10.1016/j.hal.2018.08.006.en_US
dc.description.abstractMonterey Bay, California experiences near-annual blooms of Pseudo-nitzschia that can affect marine animal health and the economy, including impacts to tourism and commercial/recreational fisheries. One species in particular, P. australis, has been implicated in the most toxic of events, however other species within the genus can contribute to widespread variability in community structure and associated toxicity across years. Current monitoring methods are limited in their spatial coverage as well as their ability to capture the full suite of species present, thereby hindering understanding of HAB events and limiting predictive accuracy. An integrated deployment of multiple in situ platforms, some with autonomous adaptive sampling capabilities, occurred during two divergent bloom years in the bay, and uncovered detailed aspects of population and toxicity dynamics. A bloom in 2013 was characterized by spatial differences in Pseudo39 nitzschia populations, with the low-toxin producer P. fraudulenta dominating the inshore community and toxic P. australis dominating the offshore community. An exceptionally toxic bloom in 2015 developed as a diverse Pseudo-nitzschia community abruptly transitioned into a bloom of highly toxic P. australis within the time frame of a week. Increases in cell density and proliferation coincided with strong upwelling of nutrients. High toxicity was driven by silicate limitation of the dense bloom. This temporal shift in species composition mirrored the shift observed further north in the California Current System off Oregon and Washington. The broad scope of sampling and unique platform capabilities employed during these studies revealed important patterns in bloom formation and persistence for Pseudo-nitzschia. Results underscore the benefit of expanded biological observing capabilities and targeted sampling methods to capture more comprehensive spatial and temporal scales for studying and predicting future events.en_US
dc.description.sponsorshipThis work was supported by the National Oceanic and Atmospheric Administration (NA11NOS4780055, NA11NOS4780056, NA11NOS4780030) and a fellowship to H. Bowers from the Packard Foundation.en_US
dc.language.isoen_USen_US
dc.relation.urihttps://doi.org/10.1016/j.hal.2018.08.006
dc.subjectPseudo-nitzschiaen_US
dc.subjectMonterey Bayen_US
dc.subjectSpecies diversityen_US
dc.subjectHarmful algal bloomen_US
dc.subjectDomoic aciden_US
dc.subjectEnvironmental Sample Processoren_US
dc.subjectARISAen_US
dc.titleDiversity and toxicity of Pseudo-nitzschia species in Monterey Bay : perspectives from targeted and adaptive samplingen_US
dc.typePreprinten_US


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