Harmful Algal Information System: Event GB-20-007

General Information

Event name:	GB-20-007
Country:	UNITED KINGDOM
Nature of the harmful event:	Seafood toxins
Event directly affected:	Shellfish
Toxicity detected:	Yes
Associated syndrome:	DSP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes (Food Standards Scotland Biotoxin monitoring programme)
Event occurred before in this location:
Individuals to contact:	BRESNAN, Eileen , Davidson, Keith

Location & Date

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Location:	Latitude: , Longitude:
General location information:	West Coast, Scotland HAB Area code(s): GB-15 GB-16 GB-17 GB-18 GB-19
Additional location information:	Multiple sites from Argyll and Bute to Sutherland including Western Isles, Skye
Bloom event dates (yyyy/mm/dd):	Event Date:2020-10-12
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known:	No
Causative Species/Genus:	Dinophysis spp. ( 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:	Oxygen content (nL/L):	Wind velocity:
Temperature (°C):	Oxygen saturation %:	Current Direction:
Sechhi disk (m):	Salinity:	Current Velocity:

Nutrient information:

Temperature Range During Event:

Max: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Growth Comments

Additional Environmental information:

Toxin Assay Information

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Crassostrea gigas	Okadaic Acid	OA eq	232	LC-MS
Mytilus edulis	Okadaic Acid	OA eq	2072	LC-MS

Kit used:

Type of kit used:

Additional information:

Economic losses:

Management decision:

Multiple closures of shellfish harvesting areas

Additional harmful effect information:

Some sites were closed from June - Sept, while others were closed in June and OA levels were under closure limits until Sept. These are still considered the one event.

Created at 04:32 on 16 Apr 2021
Updated at 04:49 on 16 Apr 2021