Harmful Algal Information System: Event US-18-023

General Information

Event name:	US-18-023
Country:	UNITED STATES
Nature of the harmful event:	Seafood toxins
Event directly affected:	Shellfish
Toxicity detected:	Yes (Approximate range: 87-300 ppm)
Associated syndrome:	ASP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes (California Department of Public Health Marine Biotoxin Monitoring Program)
Event occurred before in this location:	Yes (Pseudo-nitzschia blooms and elevated levels of domoic acid are common in the North Coast region, commonly resulting in shellfish, crab, and lobster harvest closures.)
Individuals to contact:	ZUBKOUSKY-WHITE, Vanessa

Location:	Latitude: , Longitude:
General location information:	Northern California, HAB Area code(s): US-21
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):	First detection: 2018-01-01, End: 2018-12-29
Additional date-related information:

Causative organism known:	Yes
Causative Species/Genus:	Pseudo-nitzschia spp. ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:
Event-related bibliography:

Nutrient information:

Temperature Range During Event:

Max: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Growth Comments

Additional Environmental information:

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Razor clam	Domoic Acid		300 ppm	LC
Dungeness crab	Domoic Acid		110 ppm	LC
California mussel	Domoic Acid		87 ppm	LC

Kit used: No

Type of kit used:

Additional information:

Economic losses:

Management decision:

Additional harmful effect information:

Created at 02:21 on 29 Mar 2019