General Information

Event name: US-89-003
Nature of the harmful event:
Water Discoloration
Event directly affected:
Toxicity detected: No
Associated syndrome: OTHER
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (These especies ar normally abundant in summer and responsible for water discoloration (especially K. rotundatum))
Individuals to contact: OLSEN, Paul

Location & Date

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Location: Latitude: , Longitude:
General location information: Asbury Park & Barnegat Light., New Jersey Coast.
HAB Area code(s): US-09
Additional location information: North to at least Asbury Park and south at least to Barnegat Light. At least 5 miles offshore between Manasquan and Barnegat Inlets.
Bloom event dates (yyyy/mm/dd): Start: 1989-10-26, End: 1989-10-30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Katodinium rotundatum ( cells/L)
Dominant species
Gyrodinium estuariale ( cells/L)
Dominant species
Eutreptia lanowii ( cells/L)
Dominant species
Chroomonas amphioxieia ( cells/L)
Dominant species
Co-Ocurring Species/Genus: Gyrodinium pellucidum ( cells/L)
Chrysochromulina sp. ( cells/L)
Tetraselmis sp. ( cells/L)
Pyramimonas sp. ( cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information: Total cell counts >50,000,000 cell /L.
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: No Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
In situ
Growth Comments
Additional Environmental information: Coastal water abnormally warm for the time of the year.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Several samples collected and analyzed
Additional harmful effect information: Rede water over an extensive areas, transparency as low as 0.5 m