General Information

Event name: GB-02-011
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: Positive DSP bioassay)
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Food Standards Agency, Scotland Biotoxin Monitoring Programme)
Event occurred before in this location: Yes (See reports from this region for previous years)
Individuals to contact: BRESNAN, Eileen , TURRELL, Elizabeth , MURRAY, LORNA

Location & Date

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Location: Latitude: 60.219444, Longitude: -1.492778
General location information: Gruting Voe, Shetland Islands
HAB Area code(s): GB-21
Additional location information: DSP positive samples also detected in Olna Firth (6021.48N 00119.45W), East Burra (6017.58N 00121.08W, Wadbister (6014.16N 00112.32W),Ronas Voe (6030.42N 00123.56W, Baltasound (5951.38N 00051.06W) and Southwick (6041.46N 00059.46W).
Bloom event dates (yyyy/mm/dd): Event Date:2002/08/12
Quarantine levels dates (yyyy/mm/dd): First detection: 2002/08/12, End: 2002/08/12
Additional date-related information: Flesh sampling sporadic. Positive DSP bioassays detected up until 2002/10/15.


Causative organism known: No
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: NO corresponding phytoplankton samples taken during this event.
Event-related bibliography:

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
Mytilus edulis Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: