General Information

Event name: US-21-002
Country: UNITED STATES
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Shellfish , Humans
Toxicity detected: Yes (Approximate range: 105 μg/100 g shellfish tissue)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Maine BMR Marine Biotoxins)
Event occurred before in this location: Yes
Individuals to contact: Kathleen Brown

Location & Date

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Location: Latitude: , Longitude:
General location information: ,
HAB Area code(s): US-02
Additional location information: Bloom spanned over US-2 and US-3
Bloom event dates (yyyy/mm/dd): Event Date:2021-01-11
Quarantine levels dates (yyyy/mm/dd): End: 2021-08-15
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium catenella (14,000 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: 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
Surf Clams Saxitoxins LC
Mytuilus edulis Saxitoxins LC
Mya arenaria Saxitoxins LC
Quahogs Saxitoxins LC
Oysters Saxitoxins LC
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 09:07 on 28 Jun 2022
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES