General Information

Event name: DZ-09-001
Country: ALGERIA
Nature of the harmful event:
Mass mortalities
Event directly affected:
Shellfish , Humans
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Monitoring Program established by Agency for the Protection and Promotion of Algiers Wilaya coasts (APPL))
Event occurred before in this location:
Individuals to contact: ISMAEL, Amany

Location & Date

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Location: Latitude: 36.700000, Longitude: 2.816667
General location information: Algiers Wilaya coasts,
HAB Area code(s): DZ-06
Additional location information: Samples were collected from macroalgae. Rocky shore
Bloom event dates (yyyy/mm/dd): Event Date:2009-07-19
Start: 2009-07-19, End: 2009-07-22
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Ostreopsis sp. (5,9x10^3 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Counting and molecular analysis for identification
Event-related bibliography: Illoul H., Rodríguez F., Vila M., Adjas N., Aďt Younes A., Bournissa M., Moroghli A., Marouf N., Rabia S., Lala F., et al. The genus Ostreopsis along the Algerian coastal waters (SW Mediterranean Sea) associated with a human respiratory intoxication episode. Cryptogam. Algol. 2012;33:209–216. doi: 10.7872/crya.v33.iss2.2011.209

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:
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:
Created at 07:03 on 12 Sep 2017
Updated at 02:55 on 13 Sep 2017