Harmful Algal Information System: Event US-88-010

General Information

Event name:	US-88-010
Country:	UNITED STATES
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:	No
Individuals to contact:	TESTER, Patricia

Location & Date

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Location:	Latitude: 33.883056, Longitude: -76.416667
General location information:	Onslow Bay (below Cape Lookout, NC), HAB Area code(s): US-11
Additional location information:	Gulf Stream Sanples 33º 53' N, 76º 25'W, 17 August 1988 Nearshore 19 September 1988 in Onslow Bay (below Cape Lookout, NC).
Bloom event dates (yyyy/mm/dd):	Start: 1988-08-17, End: 1988-09-19
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	Gulf Stream: 17 August 19 88 Onshore 19 Sept

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Karenia brevis ( cells/L)
Co-Ocurring Species/Genus:
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:

Growth:

Growth Comments

Gulf Stream was probably acvected population and the nearshore may have been in situ growth. There was onshore movenent of Gulf Stream water on 12 Sept. 1988

Additional Environmental information:

Western wall Gulf Stream Onslow Bay (continental shelf and nearshore)

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:

None necessary

Additional harmful effect information:

No direct effects on fishery because highest cell counts were 4700 cell/1 Ptychodiscus brevis, below the 5000 cell/1 which necessitate closure of shellfish beds.

Updated at 05:25 on 15 Apr 2015
Checked at 05:31 on 15 Apr 2015