General Information

Event name: US-06-008
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 & Date

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Location: Latitude: , Longitude:
General location information: Lake Pontchartrain, Louisiana
HAB Area code(s): US-17
Additional location information: Center of lake, taken from highway bridge
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Species data below represent cell concentrations of HAB species from surface samples collected during routine sampling for the period January - December 2006 and were not associated with a particular bloom event. Species are reported at 10^5 cells/liter, with the exception of Prorocentrum spp. which are reported at 10^3 and Anabaena spp. which are reported at 10^6. Data was compiled from a single station in the center of the lake, off the causeway bridge.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Prorocentrum minimum (1.30x10^4 cells/L)
1/19/06
Prorocentrum minimum (4.40x10^3 cells/L)
2/7/06
Prorocentrum minimum (6.00x10^3 cells/L)
3/15/06
Prorocentrum micans (1.87x10^3 cells/L)
10/24/06
Prorocentrum minimum (3.73x10^3 cells/L)
10/24/06
Prorocentrum minimum (1.90x10^3 cells/L)
11/28/06
Akashiwo sanguinea (1.04x10^5 cells/L)
12/15/06
Prorocentrum minimum (1.03x10^4 cells/L)
12/15/06
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES