General Information

Event name: DZ-01-001
Country: ALGERIA
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: ILLOUL, Hassina

Location & Date

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Location: Latitude: 36.623056, Longitude: 2.853056
General location information: Bou-Isma´l Bays, Tipaza Wilaya
HAB Area code(s): DZ-06
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2001-10-13
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: -Illoul H., M. Masˇ, R.I. Figueroa and K. Van Lenning. 2005. Detection of toxic Gymnodinium catenatum (Graham, 1943) in Algerian waters (SW Mediterranean Sea). Harmful Algae News, 29 10-12.

Environmental Conditions

Weather: sunny Turbidity (NTU): Wind direction:
Stratified water: No Oxygen content (nL/L): Wind velocity: very low
Temperature (°C): 19 Oxygen saturation %: Current Direction:
Sechhi disk (m): 9 Salinity: 36.68 Current Velocity:
Nutrient information: AMONIUM: 43.58 Ámole/l
PHOSPHATE: 0.27 Ámole/l
NITRATE + NITRITE: 0.61Ámole/l
Temperature Range During Event: Max: 23.5 °C, Min: 18.5 °C
Salinity Range During Event: Max: 37, Min: 36.7
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
Gymnodinium catenatum Saxitoxins C2 239 MU Other Chem. Analyt.
Kit used: Type of kit used:
Additional information: HPLC analyses of the Algerian strain in culture.
Economic losses:
Management decision:
Additional harmful effect information: