General Information

Event name: US-22-003
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Planktonic life , Shellfish , Humans
Toxicity detected: Yes (Approximate range: 97.1 g/100g tissue)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Mytilus edulis, Mya arenaria, Crassostrea virginica, Spisula solidissima, Plactopecten magellanicus
Report the outcome of a monitoring programme: Yes (Maine DMR Marine Biotoxins)
Event occurred before in this location: Yes (annually)
Individuals to contact: JOHNSTON, Kirsten

Location & Date

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Location: Latitude: , Longitude:
General location information: Gulf of Maine and Coastline, Regions 1-3
HAB Area code(s): US-01
Additional location information: Entire coast of Maine
Bloom event dates (yyyy/mm/dd): Event Date:2022-04-08
Quarantine levels dates (yyyy/mm/dd): End: 2022-08-12
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium spp. (4104 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 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 03:25 on 5 Apr 2023