General Information

Event name: GB-99-012
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (FRS Marine Laboratory Aberdeen Shellfish Hygiene monitoring programme.)
Event occurred before in this location: No
Individuals to contact: BRESNAN, Eileen

Location & Date

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Location: Latitude: , Longitude:
General location information: West and East Coasts, Orkney and Shetland, Scotland, North East England
HAB Area code(s): GB-01 GB-15 GB-16 GB-17 GB-19 GB-20 GB-21 GB-22 GB-23
Additional location information: This event caused multiple closures of shellfish harvesting areas along the west and east coasts of Scotland, Orkney and Shetland Islands
Bloom event dates (yyyy/mm/dd): Start: 1999-07-06, End: 1999-10-13
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:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: No Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity: 0
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 Okadaic Acid +ve Bioassay-Mouse
Kit used: Type of kit used:
Additional information: The amount of DSP could not be quantified with the mouse bioassay. 26 samples from 7 sites tested positive for the DSP toxin during this period.
Economic losses:
Management decision:
Additional harmful effect information:
Updated at 06:15 on 15 Apr 2018