General Information

Event name: ITA-01-001
Country: ITALY
Nature of the harmful event:
Water Discoloration , 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: ZINGONE, Adriana , GIACOBBE, Maria Grazia

Location & Date

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Location: Latitude: 37.048611, Longitude: 15.299722
General location information: Siracusa Bay, West Ionian Sea
HAB Area code(s): ITA-008
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2001-03-01
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium minutum Halim 1960 (46000000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: It was a plurispecific bloom near a mussel farm
Event-related bibliography: Giacobbe, M. G., Maso, M., Milandri, A., Penna, A. & Poletti, R. 2006. Plankton toxicity and shellfish contamination by phycotoxins in new Mediterranean locality. In: Henshilwood, K., Deegan, B., McMahon, T., Cusack, C., Keaveney, S., Silke, J., O'Cinneide, M., Lyons, D. & Hess, P. [Eds.] Molluscan shellfish safety. Proceedings of the 5th International Conference on Molluscan Shellfish Safety, Galway, Ireland, pp. 206-14.

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
Alexandrium minutum Saxitoxins GTX4 89.4ng/tot cell LC
Alexandrium minutum Saxitoxins GTX1 195.5 LC
Kit used: Type of kit used:
Additional information: Toxin analysis were performed with net haul samples and extracted by HPLC. Toxins were analysed on 30 April 2001
Economic losses:
Management decision:
Additional harmful effect information:
Created at 12:34 on 12 Jun 2018
Updated at 03:14 on 27 Sep 2018