General Information

Event name: US-95-008
Nature of the harmful event:
Mass mortalities
Event directly affected:
Planktonic life
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: No
Individuals to contact: TESTER, Patricia

Location & Date

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Location: Latitude: , Longitude:
General location information: Neuse River Estuary, Pamlico River Estuary., North Carolina.
HAB Area code(s): US-11
Additional location information: Coastal estuaries of central North Carolina (Neuse River Estuary, Pamlico River Estuary).
Bloom event dates (yyyy/mm/dd): Start: 1995-07-20, End: 1995-10-20
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Pfiesteria piscicida ( cells/L)
Previously reported as Pfiesteria, however, Karlodinium spp. is now believed to be the causative organism
Co-Ocurring Species/Genus: Phaeocystis sp. ( cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information: Pfiestaria piscicida implicated in mills. Phaeocystis also in area during one kill in New River after pollution "event" (=raw rewage)
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: Enviroment: Estuarine to riverine.

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: 10 mi run of Neuse River closed to fishing for approximately two weeks.
Additional harmful effect information: Fish kills, invertebrate kills.
Updated at 05:55 on 3 Apr 2019