General Information

Event name: OMN-01-003
Country: Oman
Nature of the harmful event:
High Phyto concentration , Mass mortalities
Event directly affected:
Natural Fish , Birds , Other Terrestrial , Aquatic Mammals
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location:
Individuals to contact: QUOD, Jean-Pascal , SCHWEIBOLD Laura

Location & Date

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Location: Latitude: 19.464167, Longitude: 57.913333
General location information: Al Wasta, Al Wasta
HAB Area code(s): OMN-001
Additional location information: occured all along the region's coast
Bloom event dates (yyyy/mm/dd): Event Date:2001-12-01
Start: 2001-11-01, End: 2001-12-30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Nitzschia pungens ( cells/L)
with N. subcurvata, Rhizosolenia alata, Thalassiosira and Cyclotella
Co-Ocurring Species/Genus: Pyrocystis sp. ( cells/L)
during secondary succession, with Akashiwo sanguinea and Prorocentrum minimum
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Al Gheilani, H. M., Matsuoka, K., AlKindi, A. Y., Amer, S., & Waring, C. (2011). Fish kill incidents and harmful algal blooms in Omani waters. Journal of Agricultural and Marine Sciences [JAMS], 16, 23-33

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: 40 tons of dead fish along with 250 turtles, some dolphins and birds
Created at 02:53 on 15 Sep 2021