General Information

Event name: US-02-013
Nature of the harmful event:
High Phyto concentration
Event directly affected:
Toxicity detected: Yes
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (2 year study Dr. C. Tomas University of NC at Wilmington and State of NC Dept Water Quality)
Event occurred before in this location: No
Individuals to contact: TOMAS, Carmelo

Location & Date

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Location: Latitude: 74.340000, Longitude: -34.530000
General location information: New River Estuary., North Carolina.
HAB Area code(s): US-11
Additional location information: North Carolina coast (southern coast).
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus:
Co-Ocurring Species/Genus: Karlodinium micrum ( cells/L)
Chattonella subsalsa ( cells/L)
Chattonella marina ( cells/L)
Chattonella sp. ( cells/L)
Chattonella cf. Verruculosa
Heterosigma akashiwo ( cells/L)
Fibrocapsa japonica ( cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information: Karlodinum micrum, Chattonella subsalsa, Chattonella marina, Chattonella verruculosa, Heterosigma akashiwo, Fibrocapsa japonica and to a lesser extent by Prorocentrum minimum, Eutreptiella sp., Pseudo-nitzschia spp., Heterocapsa triquetra, Gyrodinium inst
Event-related bibliography: Contact Dr. Tomas for a copy of his report to NC Dept. Water Quality

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:
Growth Comments
Additional Environmental information:

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:
Additional harmful effect information: In C. verruculosa and C. marina, brevetoxins were found at levels from 50 300 ng/L using a sensitive ELISA method