General Information

Event name: GB-99-015
Country: UNITED KINGDOM
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: 89 g STXeq /100 g.)
Associated syndrome: PSP
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: Yes
Individuals to contact: BRESNAN, Eileen

Location & Date

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Location: Latitude: , Longitude:
General location information: Orkney, Scotland, Orkney Islands
HAB Area code(s): GB-20
Additional location information: The Orkney region of Scotland includes the offshore area and coastline enclosed by 59 30.0N/00 00.0E, 59 30.0N/04 00.0W, 58 30.0N/ 04 00.0W and 58 30.0N/ 00 00.0E. 1 sample from 1 site in this region had toxin levels greater than 80ug/100g during 1999. ICES Fishing Area: IV a.
Bloom event dates (yyyy/mm/dd): Start: 1999-07-05,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: The Orkney region of Scotland includes the offshore area and coastline enclosed by 59 30.0N/00 00.0E, 59 30.0N/04 00.0W, 58 30.0N/ 04 00.0W and 58 30.0N/ 00 00.0E. 1 sample from 1 site in this region had toxin levels greater than 80ug/100g during 1999.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium spp. (560 cells/L)
This is the maximum number recorded from one site in this area
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:
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 89g STX eq/100g Bioassay-Mouse
Kit used: Type of kit used:
Additional information: 1 sample from 1 site in this region had toxin levels greater than 80ug/100g during 1999.
Economic losses:
Management decision:
Additional harmful effect information:
Updated at 03:00 on 15 Apr 2018
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES