General Information

Event name: GB-91-004
Country: UNITED KINGDOM
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: Yes
Event occurred before in this location: No
Individuals to contact: GOWEN, Richard , MACDONALD, Elspeth

Location & Date

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Location: Latitude: , Longitude:
General location information: Loch na Keal, Isle of Mull., Scotthish West Coast.
HAB Area code(s): GB-16
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1991-04-23, End: 1991-04-25
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Heterosigma akashiwo ( cells/L)
Probably
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Calm weather. Turbidity (NTU): 2.5 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 Not known.
Additional Environmental information: Sechhi disc depth 2.5 m instead of normal 5-6 m.

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: Not known.
Additional harmful effect information:
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES