General Information

Event name: US-99-015
Nature of the harmful event:
Other ( Gymnodinium breve abundance > regulatory limit of 5,000 cells/liter)
Event directly affected:
Toxicity detected: No
Associated syndrome: NSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes
Individuals to contact: DORTCH, Quay

Location & Date

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Location: Latitude: 29.056667, Longitude: -90.531667
General location information: Estuarine and Coastal water of Mississippi., Louisiana.
HAB Area code(s): US-17
Additional location information: Station 2: 28 52.18' N - 90 28.04' W Station 3: 28 45.5' N - 90 14.00' W.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Precise day 10/15/99, 4/11/99, 7/12/99. Initial date: October 15,1999. Final date: Continuing into 2000.


Causative organism known: Yes
Causative Species/Genus: Gymnodinium breve (Up to 10,0 cells/L)
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: No 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 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:
Updated at 07:08 on 2 Nov 2020