Harmful Algal Information System: Event US-89-014

General Information

Event name:	US-89-014
Country:	UNITED STATES
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes
Associated syndrome:	PSP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes
Event occurred before in this location:	Yes (1970, 1971, 1983.)
Individuals to contact:	ROSS, Maria R.

Location & Date

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Location:	Latitude: , Longitude:
General location information:	San Mateo County., California. HAB Area code(s): US-20
Additional location information:	Areas affected: Linda Mar, Moss Beach, Pescadero State Beach, Tunitas Creek.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	mid August- November

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Protogonyaulax catenella ( 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:	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:

Growth Comments

In all likelyhood this appears to be in situ growth.

Additional Environmental information:

No data is available

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:

Annual mussel quarantine was extended beyond the Oct. 31 deadline. Public PSP alert was issued confirming a potentially dangerous widespread toxic dinoflagellate bloom in progress.

Additional harmful effect information:

Paralytic toxin levels in wild sea mussels assayed at 800 �g/100 gr although the concentration decreased with time it remained above the alert level through November.