General Information

Event name: MA-98-002
Country: MOROCCO
Nature of the harmful event:
Seafood toxins
Event directly affected:
Natural Fish , Shellfish
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: ISMAEL, Amany

Location & Date

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Location: Latitude: 33.500000, Longitude: 7.333056
General location information: Oued Mellah reservoir, HANA
HAB Area code(s): MA-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1998-12-01
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Prymnesium parvum (148x106 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Sabour B., Loudiki M., Oudra B., Oubraim S., Fawzi B., Fadlaoui S., Chlaida M., Vasconcelos V. (2000). Blooms of Prymnesium parvum N. Carter (Chrysophyta, Haptophyceae) associated with fish mortalities in hypertrophic brackish lake in Morocco. Harmful Algae News, 21 : 8-9

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: Blooms of this species cause extensive fish mortalities (carps, barbels, eels, sun-poles, gambusia…) and shrimp, bivalves and other
Management decision:
Additional harmful effect information:
Created at 03:04 on 28 Sep 2018