General Information

Event name: GB-96-006
Nature of the harmful event:
Mass mortalities
Event directly affected:
Toxicity detected: No
Associated syndrome: OTHER
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: KELLY, Marie , MACDONALD, Elspeth

Location & Date

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Location: Latitude: , Longitude:
General location information: West coast and Orkney Islands., Scotland.
HAB Area code(s): GB-20
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1996-08-15
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: August 96.


Causative organism known: Yes
Causative Species/Genus: Gymnodinium sp. (up to 3,00 cells/L)
Gymnodinium cf. Mikimotoi
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: Advected
Growth Comments Thought to be advected population.
Additional Environmental information: Widespread region affected so, environment not known.

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: Widespread kills of littoral organisms, particularly cockles, razor fish and annelid worms. Some farmed salmonid mortalities atributed to anoxia following bloom decline.
Updated at 01:51 on 8 Apr 2018