Seasonal and annual dynamics of harmful algae and algal toxins revealed through weekly monitoring at two coastal ocean sites off southern California, USA

Handle URI:
http://hdl.handle.net/10754/562607
Title:
Seasonal and annual dynamics of harmful algae and algal toxins revealed through weekly monitoring at two coastal ocean sites off southern California, USA
Authors:
Seubert, Erica L.; Gellene, Alyssa G.; Howard, Meredith D Armstrong; Connell, Paige; Ragan, Matthew; Jones, Burton ( 0000-0002-9599-1593 ) ; Runyan, Jennifer; Caron, David A.
Abstract:
Reports of toxic harmful algal blooms (HABs) attributed to the diatom Pseudo-nitzschia spp. have been increasing in California during the last several decades. Whether this increase can be attributed to enhanced awareness and monitoring or to a dramatic upswing in the development of HAB events remains unresolved. Given these uncertainties, the ability to accurately and rapidly identify an emerging HAB event is of high importance. Monitoring of HAB species and other pertinent chemical/physical parameters at two piers in southern California, Newport and Redondo Beach, was used to investigate the development of a site-specific bloom definition for identifying emerging domoic acid (DA) events. Emphasis was given to abundances of the Pseudo-nitzschia seriata size category of Pseudo-nitzschia due to the prevalence of this size class in the region. P. seriata bloom thresholds were established for each location based on deviations from their respective long-term mean abundances, allowing the identification of major and minor blooms. Sixty-five percent of blooms identified at Newport Beach coincided with measurable DA concentrations, while 36 % of blooms at Redondo Beach coincided with measurable DA. Bloom definitions allowed for increased specificity in multiple regression analysis of environmental forcing factors significant to the presence of DA and P. seriata. The strongest relationship identified was between P. seriata abundances 2 weeks following upwelling events at Newport Beach. © 2012 Springer-Verlag Berlin Heidelberg.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Marine Science Program; Red Sea Research Center (RSRC)
Publisher:
Springer Verlag
Journal:
Environmental Science and Pollution Research
Issue Date:
4-Jan-2013
DOI:
10.1007/s11356-012-1420-0
PubMed ID:
23288675
Type:
Article
ISSN:
09441344
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Marine Science Program; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSeubert, Erica L.en
dc.contributor.authorGellene, Alyssa G.en
dc.contributor.authorHoward, Meredith D Armstrongen
dc.contributor.authorConnell, Paigeen
dc.contributor.authorRagan, Matthewen
dc.contributor.authorJones, Burtonen
dc.contributor.authorRunyan, Jenniferen
dc.contributor.authorCaron, David A.en
dc.date.accessioned2015-08-03T10:58:10Zen
dc.date.available2015-08-03T10:58:10Zen
dc.date.issued2013-01-04en
dc.identifier.issn09441344en
dc.identifier.pmid23288675en
dc.identifier.doi10.1007/s11356-012-1420-0en
dc.identifier.urihttp://hdl.handle.net/10754/562607en
dc.description.abstractReports of toxic harmful algal blooms (HABs) attributed to the diatom Pseudo-nitzschia spp. have been increasing in California during the last several decades. Whether this increase can be attributed to enhanced awareness and monitoring or to a dramatic upswing in the development of HAB events remains unresolved. Given these uncertainties, the ability to accurately and rapidly identify an emerging HAB event is of high importance. Monitoring of HAB species and other pertinent chemical/physical parameters at two piers in southern California, Newport and Redondo Beach, was used to investigate the development of a site-specific bloom definition for identifying emerging domoic acid (DA) events. Emphasis was given to abundances of the Pseudo-nitzschia seriata size category of Pseudo-nitzschia due to the prevalence of this size class in the region. P. seriata bloom thresholds were established for each location based on deviations from their respective long-term mean abundances, allowing the identification of major and minor blooms. Sixty-five percent of blooms identified at Newport Beach coincided with measurable DA concentrations, while 36 % of blooms at Redondo Beach coincided with measurable DA. Bloom definitions allowed for increased specificity in multiple regression analysis of environmental forcing factors significant to the presence of DA and P. seriata. The strongest relationship identified was between P. seriata abundances 2 weeks following upwelling events at Newport Beach. © 2012 Springer-Verlag Berlin Heidelberg.en
dc.publisherSpringer Verlagen
dc.subjectBloom definitionen
dc.subjectDomoic aciden
dc.subjectHarmful algal bloomen
dc.subjectMicroalgaeen
dc.subjectPseudo-nitzschiaen
dc.subjectTime seriesen
dc.titleSeasonal and annual dynamics of harmful algae and algal toxins revealed through weekly monitoring at two coastal ocean sites off southern California, USAen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentMarine Science Programen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalEnvironmental Science and Pollution Researchen
dc.contributor.institutionDepartment of Biological Sciences, University of Southern California, 3616 Trousdale Parkway, AHF 301, Los Angeles, CA, 90089-0371, United Statesen
dc.contributor.institutionSouthern California Coastal Water Research Project, 3535 Harbor Boulevard, Suite 110, Costa Mesa, CA, 92626, United Statesen
kaust.authorJones, Burtonen

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