Harmful Algal Information System: Event US-05-014

General Information

Event name:	US-05-014
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:
Individuals to contact:	RABALAIS, Nancy

Location:	Latitude: , Longitude:
General location information:	W of mouth of the Atchafalaya River, Gulf of Mexico HAB Area code(s): US-17
Additional location information:	Cross-shelf research transect begins at 29.2733 N/91.6167 W and ends at 28.6917/91.6167 W.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	The data below represent cell concentrations of HAB species at or above 10^5 cells/liter (with the exception of Dinophysis and Proocentrum which are reported at or above 10^3, and Alexandrium monilatum and Karenia brevis which are reported when they are detected at any concentration) encountered in routine sampling for the period Jan.-Dec. 2005, and were not associated with a particular bloom event. Cell concentrations were averaged over three stations in the transect to generate an average concentration for a single sample date.

Causative organism known:	No
Causative Species/Genus:	Prorocentrum gracile (5.2x10^3 cells/L) 4/19/2005 Prorocentrum sp. (3.5x10^3 cells/L) 4/19/2005 Prorocentrum minimum (1.9x10^5 cells/L) 6/2/2005 Euglena spp. (2.0x10^6 cells/L) 6/2/2005 Heterocapsa rotundata (3.7x10^4 cells/L) 6/2/2005 Prorocentrum minimum (6.9x10^4 cells/L) 8/16/2005 Alexandrium monilatum (detected cells/L) 8/16/2005
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	Other species included compressu (2.3x10^4 on 4/19/2005)
Event-related bibliography: