General Information

Event name: GB-98-001
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 150)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (PSP has recurred on the Scotish east coast since 1990 (when current toxin monitoring program began). However PSP eas first recorded in this region in 1967.)
Individuals to contact: HOWARD, Godfrey , KELLY, Marie

Location & Date

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Location: Latitude: , Longitude:
General location information: East coast, Orkney and Shetland Islands, Scotland
HAB Area code(s): GB-20 GB-21 GB-23
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1998-05-11
Start: 1998-01-01, End: 1998-09-30
Quarantine levels dates (yyyy/mm/dd): First detection: 1998-05-11,
Additional date-related information: January-September


Causative organism known: Yes
Causative Species/Genus: Alexandrium spp. (1,700 cells/L)
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 Saxitoxins STX eq 150 LC
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Voluntary Closure Agency (VCA) in Dornoch Firth during time when PSP toxins were above permitted levels
Additional harmful effect information: Toxins persisted until early June