General Information

Event name: US-24-003
Country: UNITED STATES
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: 63 to 352 µg/kg)
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (HAB OA, Suffolk County, PEP)
Event occurred before in this location: Yes
Individuals to contact: GOBLER

Location & Date

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Location: Latitude: , Longitude:
General location information: North shore (Cold Spring Harbor, Northport Harbor), Peconic Estuary (Hallocks Bay, James Creek, Jockey Creek, Orient Harbor, Sag Harbor, Three Mile Harbor, West Neck Bay, Reeves Bay, Meetinghouse Creek),
HAB Area code(s): US-08
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 2024-03-18, End: 2024-06-24
Quarantine levels dates (yyyy/mm/dd): First detection: 2024-05-15, End: 2024-06-11
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis acuminata (North:175000 Peconic: 57800000 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: 23.7 °C, Min: 4.8 °C
Salinity Range During Event: Max: 29.2, Min: 5.4
Bloom location in the water column:
Surface
Growth:
In situ
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Yes Type of kit used:
Additional information:
Economic losses:
Management decision: Harvesting closures
Additional harmful effect information:
Created at 01:19 on 9 Apr 2025
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES


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