Harmful Algal Information System: Event US-05-011

General Information

Event name:	US-05-011
Country:	UNITED STATES
Nature of the harmful event:	High Phyto concentration
Event directly affected:
Toxicity detected:	No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	No
Event occurred before in this location:	Yes (This area frequently sees high concentrations of the species listed in Section 3 below.)
Individuals to contact:	RABALAIS, Nancy

Location:	Latitude: , Longitude:
General location information:	Barataria Bay, Louisiana, HAB Area code(s): US-17
Additional location information:	Tidal estuary with salinity fluctuations.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	The species data below represents cell concentrations of HAB species above 10^5 cells/liter, with the exception of Prorocentrum which is reported above 10^4 and Anabaena spp. which are reported above 10^6. Cell concentrations were averaged over five stations in the estuary to generate an average concentration for each species on a single sample date. Data is from surface samples collected during routine sampling for the period Jan-Aug 2005 and were not associated with a particular bloom event.

Causative organism known:	Yes
Causative Species/Genus:	Anabaena spp. (2.1x10^6 cells/L) 1/25/2005 Heterocapsa rotundata (1.9x10^5 cells/L) 2/22/2005 Planktolyngbya contorta (1.2x10^6 cells/L) 4/27/2005
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	Other species detected include Aphanizomenon, and R. curvata.
Event-related bibliography: