General Information

Event name: JP-01-031
Country: JAPAN
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: 0.05 - 0.1MU/g)
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Yesso Scallop
Report the outcome of a monitoring programme: Yes (Counter plan program on shellfish poisoning)
Event occurred before in this location: No
Individuals to contact: WATANABE, Yasunori , IMAI, Ichiro , ITAKURA, Shigeru

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Mutsu Bay, Aomori Prefecture, Tohoku-Japan Sea
HAB Area code(s): JP-07
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2001-06-15, End: 2001-08-02
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis fortii Pavillard 1923 ( cells/L)
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:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Pactinopectein yessoensis Okadaic Acid OA eq 0.05 - 0.1MU/g Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: No human intoxications occurred
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES