General Information

Event name: GB-98-006
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: ASP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (ASP was first recorded in Orkney Islands in 1997 at a level of 22 g/g of domoic acid)
Individuals to contact: KELLY, Marie , HOWARD, Godfrey

Location & Date

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Location: Latitude: , Longitude:
General location information: Scapa Bay, Skye, Orkney Islands.
HAB Area code(s): GB-17 GB-20
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1998-07-16
Start: 1998-02-01, End: 1998-12-31
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: February-December


Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia spp. (1,622,000 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
Pecten maximus Domoic Acid DA eq 70 g/g Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Food and Environment Protection Act 1985 (FEPA) closure order in place from June to December. This order was partially revoked as areas became clear of toxins. The effected areas were Scapa Flow, Orkney, Scalpay off Skye and fron scallops grounds off the
Additional harmful effect information:
Updated at 01:34 on 9 Oct 2020