Award Abstract # 0234587
ECOHAB PNW: Ecology and Oceanography of Toxic Pseudo-nitzschia in the Pacific Northwest Coastal Ocean

NSF Org: OCE
Division Of Ocean Sciences
Recipient: UNIVERSITY OF WASHINGTON
Initial Amendment Date: December 12, 2002
Latest Amendment Date: August 30, 2009
Award Number: 0234587
Award Instrument: Continuing Grant
Program Manager: David Garrison
OCE
 Division Of Ocean Sciences
GEO
 Directorate For Geosciences
Start Date: December 1, 2002
End Date: November 30, 2010 (Estimated)
Total Intended Award Amount: $0.00
Total Awarded Amount to Date: $2,664,974.00
Funds Obligated to Date: FY 2003 = $1,104,000.00
FY 2004 = $594,974.00

FY 2005 = $966,000.00
History of Investigator:
  • Barbara Hickey (Principal Investigator)
    bhickey@u.washington.edu
  • Evelyn Lessard (Co-Principal Investigator)
Recipient Sponsored Research Office: University of Washington
4333 BROOKLYN AVE NE
SEATTLE
WA  US  98195-1016
(206)543-4043
Sponsor Congressional District: 07
Primary Place of Performance: University of Washington
4333 BROOKLYN AVE NE
SEATTLE
WA  US  98195-1016
Primary Place of Performance
Congressional District:
07
Unique Entity Identifier (UEI): HD1WMN6945W6
Parent UEI:
NSF Program(s): BIOLOGICAL OCEANOGRAPHY
Primary Program Source:
Program Reference Code(s): 0000, 4444, 7233, 9117, 9169, EGCH, OTHR
Program Element Code(s): 1650
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.050

ABSTRACT

This project is studying the physiology, toxicology, ecology and oceanography of toxic Pseudo-nitzschia (PN) species off the Pacific Northwest coast, a region in which both macro-nutrient supply and current patterns are primarily controlled by seasonal coastal upwelling processes. The long term project goal is to develop a mechanistic basis for forecasting toxic PN bloom development along the Pacific Northwest coast and in other similar coastal regions in Eastern Boundary upwelling systems. The objectives are being met with an integrated suite of field and laboratory studies on two 21 day cruises per year, moored bio/chem/physical sensors as well as circulation and biophysical modeling in a study area that includes both the eddy and also a typical coastal upwelling region. The key factors responsible for high cell densities of toxigenic PN spp. and the variable levels of cell toxicity are being investigated with on-deck incubation studies and comprehensive in situ measurements including macronutrients, micronutrients (Fe, Cu), bacteria and grazer abundance as well as photosynthetic radiation, stratification and velocity shear. Aging of blooms are being studied by following drogued patches of water both from the eddy and from a nearshore upwelling region. Toxification of coastal shellfish are being determined using beach sampling sites maintained by the Olympic Region HAB program. A coupled biophysical model of the region is being used to examine the potential for bloom generation in offshore eddy and nearshore upwelling regions (e.g., stratification, nutrient sources, strength and timing) as well as to assess transport pathways of toxic PN to the coast under a variety of environmental and physiological conditions.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

Note:  When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

(Showing: 1 - 10 of 51)
Hickey, B.M. and V. Trainer "ECOHAB PNW: a new interdisciplinary program" Limnology and Oceanography Bulletin , v.12(2) , 2003 , p.49
Trainer, V.L. and B.M. Hickey "The challenges of forecasting and managing toxigenic Pseudo-nitzschia blooms on the U.S. west coast" Pp 55-60 in: D. Scavia and N. Valetta-Silver (eds), Ecological Forecasting: New tools for coastal and marine ecosystem management, NOAA Technical Memorandum NOAA NCCOS 1 , 2003 , p.55
Hickey, B.M., S. Geier, N. Kachel and A. MacFadyen "A Bi-Directional Freshwater Plume in the California Current System" Continental Shelf Research , v.25 , 2005 , p.1631
MacFadyen, A., B.M. Hickey and M. Foreman "Transport of surface waters from the Juan de Fuca eddy region to the Washington coast: implications for HABs" Continental Shelf Research , v.25 , 2005 , p.2008
Tinnis, S. R.. Thomson, C. F. Mass and B. Hickey (2005) Comparison of MM5 and Meteorological Buoy winds for the west coast of north America. Submitted to Can. J. Atm. and Oceans. "Comparison of MM5 and Meteorological Buoy winds for the west coast of north America." Can. J. Atm. and Oceans. , v.44 , 2006 , p.65
Hickey, B.M., A. MacFadyen, W.P. Cochlan, R.M. Kudela, K.W. Bruland and C.G. Trick "Evolution of biological, chemical and physical water properties in the northern California Current in 2005: remote or local wind forcing?" Geophysical Research Letters , v.33 , 2006 , p.L22S02 10.1029/2006GL026782
Kudela, R.M., W.P. Cochlan, T.D. Peterson and C.G. Trick "Impacts on Phytoplankton Biomass and Productivity in the Pacific Northwest During the Warm Ocean Conditions of 2005" Geophysical Research Letters , v.33 , 2006 33: L22S06
Wells, M.L., C.R. Trick, W.P. Cochlan, M.P. Hughes, and V.L. Trainer "The synergy of iron, copper and the toxicity of diatoms" Limnology and Oceanography , v.50 , 2005 , p.1908
Olson, M.B., E. J. Lessard, C. J. Wong, and M. J. Bernhardt "Copepod feeding selectivity on the microplankton, including the toxigenic diatom, Pseudo-nitzschia spp., in the coastal Pacific Northwest" Marine Ecological Progress Series , v.326 , 2006 , p.207
Olson, M.B. "On the population ecology of Pseudo-nitzschia in the Pacific Northwest" Ph. D. Dissertation, University of Washington , 2007
Kosro, P.M., W.T. Peterson, B.M. Hickey, R.K. Shearmann and S.D. Pierce "Physical versus biological spring transition" Geophysical Research Letters , v.33 , 2006 , p.L22S06 10.1029/2006GL027072
(Showing: 1 - 10 of 51)

Please report errors in award information by writing to: awardsearch@nsf.gov.

Print this page

Back to Top of page