General Information

Event name: US-88-008
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 (Nuisance annual blooms began in 1985)
Individuals to contact: OLSEN, Paul

Location & Date

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Location: Latitude: , Longitude:
General location information: Raritan Bay and entire coast of New Jersey, from beach to a few miles off.,
HAB Area code(s): US-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1988-05-24, End: 1988-06-08
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Cerataulina pelagica ( cells/L)
cell concentrations ranged 1-20 x 10(3) cells ml(-1) but usually ranged 1-10 x 10(3) cells ml(-1)
Co-Ocurring Species/Genus: Skeletonema costatum ( cells/L)
in some places, 1-10 x 10(3) cells ml(-1) Sampling was surface from helicopter; counting by Sedgewick-Rafter strip.
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:
In situ
Growth Comments Bloom initiated in Hudson-Raritan estuary.
Additional Environmental information: Chlorophyll ranged 3-10 g l(; Temperature range: inshore, surface 16.7 - 17.0; at 9 mi. from shore 16.6 - 17.0. Salinity, not available. Water column stability: mixed to slightly stratified. DO (at bottom) <3.0 ppm at Long Branch; 1-5 - 4.8 ppm at Seasid

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: Increased surveillence
Additional harmful effect information: Brown flocculent material, or foam, on much of New Jersey shore.