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General Information

Event name: JP-19-001
Country: JAPAN
Nature of the harmful event:
 Water Discoloration , High Phyto concentration , Other ( Discoloration of Pyropia)
Event directly affected:
 Seaweed
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes
Individuals to contact: SAKAMOTO, Setsuko

Location & Date

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Location: Latitude: , Longitude:
General location information: Ariake Sea, From Shiraishi town to Taira town
HAB Area code(s): JP-05
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2019-01-04
Start: 2019-01-04, End: 2019-02-20
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Skeletonema spp. (40700000 cells/L)
Chaetoceros spp. (7120000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Kyushu Kaiiki no Akashio (2020) (in Japanese), SA-01

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:
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 08:00 on 20 Apr 2020
Updated at 08:22 on 20 Apr 2020
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IOC/UNESCO ICES PICES