General Information

Event name: CN-20-006
Country: CHINA
Nature of the harmful event:
Event directly affected:
Toxicity detected: Yes
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location:
Individuals to contact: GUAN, Chunjiang

Location & Date

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Location: Latitude: , Longitude:
General location information: ,
HAB Area code(s): CN-03
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2020-08-21
Start: 2020-08-21, End: 2020-11-12
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Skeletonema costatum (Greville) Cleve 1878 ( cells/L)
Co-Ocurring Species/Genus: Cochlodinium polykrikoides Margalef 1961 ( cells/L)
Scrippsiella trochoidea (Stein) Balech ex Loeblich III 1965 ( cells/L)
Ceratium furca ( cells/L)
Akashiwo sanguinea (Hirasaka) Hansen et Moestrup 2000 ( cells/L)
Pseudo-nitzschia delicatissima (Cleve) Heiden 1928 ( cells/L)
Pseudo-nitzschia pungens (Grunow ex Cleve) Hasle 1993 ( cells/L)
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:
Created at 08:42 on 7 Jan 2022