General Information

Event name: US-21-012
Country: UNITED STATES
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Seafood toxins
Event directly affected:
Shellfish , Humans
Toxicity detected: Yes (Approximate range: 352 μg/kg)
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Long Island Marine Monitoring Network)
Event occurred before in this location: Yes
Individuals to contact: Young, Craig

Location & Date

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Location: Latitude: , Longitude:
General location information: North Shore,
HAB Area code(s): US-08
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 2021-04-26, End: 2021-08-09
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis spp. (555,000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: 541.54 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: 25.4 °C, Min: 10.3 °C
Salinity Range During Event: Max: 27.4, Min: 23.2
Bloom location in the water column:
Surface
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 08:55 on 1 Jul 2022
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES