General Information

Event name: US-07-013
Nature of the harmful event:
High Phyto concentration
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Routine water quality monitoring by the SCDHS for the South Shore Estuary Reserve Program)
Event occurred before in this location: Yes (recurring bloom from 1986 to 2002)
Individuals to contact: DE BLASI, Philip

Location & Date

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Location: Latitude: , Longitude:
General location information: Suffolk County, South Shore Estuary, New York
HAB Area code(s): US-08
Additional location information: Great South Bay, South Shore of Long Island. Bayshore Cove.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: June to July


Causative organism known: Yes
Causative Species/Genus: Aureococcus anophagefferens (117,064 cells/L)
At station 190 in Great South By on 6/20/07
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: 32.9 µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Rain Turbidity (NTU): Wind direction: NW
Stratified water: No Oxygen content (nL/L): 7 Wind velocity: 0-5 mph
Temperature (°C): 23.5 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 26.4 Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column: Whole 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: Historically has caused loss of scallop fishery in other embayments (peconic Estuary) and decimation of eelgrass beds.
Management decision: Continue monitoring.
Additional harmful effect information: