Harmful algal blooms along the North American west coast region: History, trends, causes, and impacts

Lewitus, Alan J.; Horner, Rita A.; Caron, David A.; García‐Mendoza, Ernesto; Hickey, Barbara M.; Hunter, Matthew; Huppert, Daniel D.; Kudela, Raphael M.; Langlois, Gregg W.; Largier, John L.; Lessard, Evelyn J.; RaLonde, Raymond; Rensel, J.E.; Strutton, Peter G.; Trainer, Vera L.; Tweddle, Jacqueline F.

doi:10.1016/j.hal.2012.06.009

Cited by 228 publications

(133 citation statements)

References 174 publications

Supporting

Mentioning

131

Contrasting

Unclassified

Order By: Relevance

“…2 and Fig. S2), and DA reached record highs in CA mussels and lobster (19); high DA was detected in coastal waters from at least central CA north to central OR (26). In 2015, extensive NE Pacific warming coincided with an unprecedented, record-setting DA event from CA to WA (20,38).…”

Section: Discussionmentioning

confidence: 94%

“…Maximum DA in CA mussel tissue is higher (610 ppm) than in OR or WA razor clams (295 ppm) (19), and DA has exceeded 20 ppm in CA shellfish and other seafood species (sardines, anchovies) (19) nearly every year since 2000. Documented cases of DA in marine birds and mammals predominantly occur in CA (17).…”

Section: Discussionmentioning

confidence: 99%

“…DA levels in OR razor clams (Siliqua patula) have been monitored coastwide by the OR Department of Agriculture every 2 wk to 4 wk from 1992-2015 (19,26). These data were binned to coastwide monthly DA maxima.…”

Section: Significancementioning

confidence: 99%

“…18), the majority of these studies are based on temporally short or spatially small datasets relative to climate-scale indexes. To protect public health, DA in shellfish has been monitored along the US West Coast since 1991 (19). These records are now long enough to investigate DA regulation at the temporal-spatial scales associated with NE Pacific climate events that have occurred in recent decades, such as El Niño events, PDO transitions, and the 2013-2015 NE Pacific Warm Anomaly (20,21).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Climatic regulation of the neurotoxin domoic acid

McKibben

Peterson

Wood

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

128

View full text Add to dashboard Cite

Domoic acid is a potent neurotoxin produced by certain marine microalgae that can accumulate in the foodweb, posing a health threat to human seafood consumers and wildlife in coastal regions worldwide. Evidence of climatic regulation of domoic acid in shellfish over the past 20 y in the Northern California Current regime is shown. The timing of elevated domoic acid is strongly related to warm phases of the Pacific Decadal Oscillation and the Oceanic Niño Index, an indicator of El Niño events. Ocean conditions in the northeast Pacific that are associated with warm phases of these indices, including changes in prevailing currents and advection of anomalously warm water masses onto the continental shelf, are hypothesized to contribute to increases in this toxin. We present an applied domoic acid risk assessment model for the US West Coast based on combined climatic and local variables. Evidence of regional-to basin-scale controls on domoic acid has not previously been presented. Our findings have implications in coastal zones worldwide that are affected by this toxin and are particularly relevant given the increased frequency of anomalously warm ocean conditions.T he Pacific Decadal Oscillation (PDO) and El Niño Southern Oscillation (ENSO) are recurring patterns of climate variability centered over the northeastern (NE) and equatorial Pacific, respectively, that fluctuate at scales of years (ENSO) to decades (PDO) (1, 2). Distinct, yet also related, these patterns can amplify or dampen each other through atmospheric teleconnection (1, 3). In the NE Pacific, they induce similar spatial patterns of sea surface temperature anomalies during positive (warm) and negative (cool) phases (4). Low-frequency physical variability attributed to the PDO and ENSO modulates large shifts in NE Pacific water temperature, ocean currents, and foodweb dynamics that can persist for months to years (2,5,6). Shifts in NE Pacific plankton communities occur as well (7-12); however, climate impacts on phytoplankton ecology in this region are relatively underexplored, largely due to a lack of phytoplankton data at sufficient scales.Decadal, regional-scale monitoring of domoic acid (DA) in shellfish can be used to investigate climate-scale impacts on phytoplankton ecology. The neurotoxin DA is produced by some species of the diatom genus Pseudo-nitzschia. It enters secondary trophic levels when suspension feeders such as shellfish and anchovies ingest toxic Pseudo-nitzschia cells. Consumption of these organisms by humans can lead to a serious neurological disorder named Domoic Acid Poisoning (DAP), also termed Amnesic Shellfish Poisoning. DAP symptoms range from gastrointestinal disturbance to seizures, memory loss, or, rarely, death (13,14).DA was first identified as a public health threat in 1987 (15). Toxin-producing Pseudo-nitzschia spp. and DA have since been identified worldwide with the greatest prevalence in, and most deleterious impacts on, productive eastern boundary upwelling systems (16). Laboratory experiments have found multiple ...

show abstract

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Significancementioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Climatic regulation of the neurotoxin domoic acid

McKibben

Peterson

Wood

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

128

View full text Add to dashboard Cite

show abstract

“…Yet, human-induced eutrophication has been reported in Europe and elsewhere since the early 20 th century (de Jonge et al, 2002;Lewitus et al, 2012;May et al, 2012). The lack of historical data makes establishing reference conditions for surface waters, especially in and downstream of well-populated areas, very difficult.…”

Section: Introductionmentioning

confidence: 99%

Nutrient fluxes from domestic wastewater: A national-scale historical perspective for the UK 1800–2010

Naden

Bell

Carnell

et al. 2016

Science of The Total Environment

View full text Add to dashboard Cite

Temporal and Environmental Factors Driving Vibrio Vulnificus and V. Parahaemolyticus Populations and Their Associations With Harmful Algal Blooms in South Carolina Detention Ponds and Receiving Tidal Creeks

et al. 2017

View full text Add to dashboard Cite

Incidences of harmful algal blooms (HABs) and Vibrio infections have increased over recent decades. Numerous studies have tried to identify environmental factors driving HABs and pathogenic Vibrio populations separately. Few have considered the two simultaneously, though emerging evidence suggests that algal blooms enhance Vibrio growth and survival. This study examined various physical, nutrient, and temporal factors associated with incidences of HABs, V. vulnificus, and V. parahaemolyticus in South Carolina coastal stormwater detention ponds, managed systems where HABs often proliferate, and their receiving tidal creek waters. Five blooms occurred during the study (2008–2009): two during relatively warmer months (an August 2008 cyanobacteria bloom and a November 2008 dinoflagellate bloom) followed by increases in both Vibrio species and V. parahaemolyticus, respectively, and three during cooler months (December 2008 through February 2009) caused by dinoflagellates and euglenophytes that were not associated with marked changes in Vibrio abundances. Vibrio concentrations were positively and significantly associated with temperature and dissolved organic matter, dinoflagellate blooms, negatively and significantly associated with suspended solids, but not significantly correlated with chlorophyll or nitrogen. While more research involving longer time series is needed to increase robustness, findings herein suggest that certain HAB species may augment Vibrio occurrences during warmer months.

show abstract

Harmful algal blooms along the North American west coast region: History, trends, causes, and impacts

Cited by 228 publications

References 174 publications

Climatic regulation of the neurotoxin domoic acid

Climatic regulation of the neurotoxin domoic acid

Nutrient fluxes from domestic wastewater: A national-scale historical perspective for the UK 1800–2010

Temporal and Environmental Factors Driving Vibrio Vulnificus and V. Parahaemolyticus Populations and Their Associations With Harmful Algal Blooms in South Carolina Detention Ponds and Receiving Tidal Creeks

Contact Info

Product

Resources

About