General Information

Event name: US-19-012
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: >80ug/100g shellfish)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: ANDERSON, Donald M.

Location & Date

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Location: Latitude: , Longitude:
General location information: Chukchi and North Bering Sea, Alaska
HAB Area code(s): US-27
Additional location information: 2 sites - station DB02-0, 70 miles north of Saint Lawrence Island and station LB6, 50 miles north of Cape Lisburne
Bloom event dates (yyyy/mm/dd): Event Date:2019-08-08
Start: 2019-08-08, End: 2019-08-22
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Collected by Evie Fachon aboard USCG Healy


Causative organism known: Yes
Causative Species/Genus: Alexandrium catenella (8,000 cells/L)
1000 - 8000/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 Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Macoma calcarea Saxitoxins STX eq 164.7ug/100g ELISA
Kit used: Yes Type of kit used: Abraxis ELISA kit
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 05:23 on 25 Mar 2020
Updated at 04:42 on 31 Mar 2020