General Information

Event name: US-88-004
Nature of the harmful event:
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (Major blooms in 1985-1986 (initial blooms))
Individuals to contact: COSPER, E. , NUZZI, Robert

Location & Date

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Location: Latitude: , Longitude:
General location information: Great South Bay, long Island, N.Y., Peconic Bay System, long Island, N.Y.,
HAB Area code(s): US-01
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Isolated blooms peaked in Mid-June, then dwindled to undetected levels of causative sp. by end of summer.


Causative organism known: Yes
Causative Species/Genus: Aureococcus anophagefferens ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Maximum cell number in Great South Bay <500,000 ml (-1) Cell numbers in Peconic system ranged to 1000,000 ml (-1)
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: 28 °C, Min: 26 °C
Salinity Range During Event: Max: 30, Min: 25
Bloom location in the water column:
In situ
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: Suffolk County monitoring program carried out.
Additional harmful effect information: Growth suppression in Mercenaria mercenaria reported