General Information

Event name: GB-03-007
Nature of the harmful event:
Mass mortalities
Event directly affected:
Aquaculture Fish
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (See previous records)
Individuals to contact: BRESNAN, Eileen

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Orkney and Shetland Islands, Scotland
HAB Area code(s): GB-20 GB-21
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2003-09-04
Start: 2003-09-04, End: 2003-09-04
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Bloom swept in overnight and killed fish


Causative organism known: No
Causative Species/Genus: Karenia mikimotoi (300,000 cells/L)
sample taken from Scapa, Orkney
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 Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: Extensive mortalities of farmed salmon recorded.
Created at 10:28 on 16 Apr 2018