General Information

Event name: GB-00-001
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 50 ug DA/g)
Associated syndrome: ASP
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, North West, Orkney, East coast, West Scotland.
HAB Area code(s): GB-16 GB-17 GB-18 GB-19 GB-20 GB-22
Additional location information: This was a widespread event impacting scallops around the Scottish coast. DA was observed in May in SM and Orkney scallop boxes, and later in the summer in offshore Scallop fishing boxes around the Scottish coast.
Bloom event dates (yyyy/mm/dd): Start: 2000-05-22, End: 2001-02-08
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia spp. (93,100 cells/L)
This is the maximum number recorded from one site in this region
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
Chlamys opercularis Domoic Acid DA eq 28.02 g/g LC
Pecten maximus Domoic Acid DA eq 217.36 g/ LC
Kit used: Type of kit used:
Additional information: These shellfish came from two different sites
Economic losses: Closures of offshore scallop fishing areas were enforced for extended periods of time during the year. In some cases closures extended into 2001.
Management decision:
Additional harmful effect information:
Updated at 03:47 on 14 Apr 2018