General Information

Event name: RU-21-001
Nature of the harmful event:
High Phyto concentration
Event directly affected:
Toxicity detected: No
Associated syndrome: ASP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes
Individuals to contact: ORLOVA, Tatiana Yu , MOROZOVA, Tatiana V. , Stonik Inna

Location & Date

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Location: Latitude: , Longitude:
General location information: Amur Bay, Peter the Great Bay, Sea of Japan
HAB Area code(s): RU-11
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2021-10-06
Start: 2021-09-01, End: 2021-10-27
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Pseudo-nitzschia multistriata (3 400 000 cells/L)
Co-Ocurring Species/Genus: Pseudo-nitzschia calliantha (800 000 cells/L)
Pseudo-nitzschia delicatissima (1 300 000 cells/L)
Pseudo-nitzschia pungens (560 000 cells/L)
Chlorophyll concentration, if known: 3.4 µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): 0.9 Wind direction:
Stratified water: Oxygen content (nL/L): 6.1 Wind velocity:
Temperature (°C): 17.7 Oxygen saturation %: 77.3 Current Direction:
Sechhi disk (m): Salinity: 32.3 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
Pseudo-nitzschia multistriata Domoic Acid 2 mg·kg-1 ELISA
Kit used: Yes Type of kit used: ASP direct cELISA
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 02:57 on 12 Sep 2022
Updated at 03:10 on 12 Sep 2022