General Information

Event name: GB-92-003
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 425 mu.)
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 occurred on the west coast of Scotland in 1990 and 1991.)
Individuals to contact: HOWARD, Godfrey , MACDONALD, Elspeth

Location & Date

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Location: Latitude: , Longitude:
General location information: , West Coast of Scotland.
HAB Area code(s): GB-15
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: May-August 92.


Causative organism known: Yes
Causative Species/Genus: Alexandrium spp. (1,000 cells/L)
Found in Loch Long in July.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Alexandrium spp. found in Loch Long (close to Firth of Clyde) in association with a large Dinophysis bloom.
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: No detailed information available

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information: PSP toxins detected below the action level (400 mu) around Skye, Loch Broom and Loch Inver. Levels over 400 mu found from Lochs Torridon and Toscaig and at Ardtoe but only very briefly. Toxins found in samples from the Clyde area for the first time, peak level detected was 425 mu.
Economic losses:
Management decision: Closures as required.
Additional harmful effect information:
Updated at 09:39 on 9 Oct 2020