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General Information

Event name: US-17-028
Country: UNITED STATES
Nature of the harmful event:
 Seafood toxins
Event directly affected:
 Shellfish
Toxicity detected: Yes (Approximate range: At Star Island (Gosport Harbor, Isles of Shoals, 42.978611N, 70.611111W) blue mussel toxicity was <44 ug/100g on 5/22/17, 774.4 ug/100g on 5/31/17, 1570.8 ug/100g on 6/7/17, 1329.4 ug/100g on 6/12/17, 440.4 ug/100g on 6/21/17, 301.6 ug/100g on 6/26/16, 71.8 ug/100g on 7/5/17, 50.2 ug/100g on 7/10/17, and <44 ug/100g on 7/17. All subsequent weekly samples were <44 ug/100g. At Hampton Harbor monitoring station (42.899308N, 70.817986W), blue mussel toxicity was < 44ug/100g on 5/22/17, 93.3 ug/100g on 5/31/17, 66 ug/100g on 6/5/17, and <44 ug/100g on 6/14/17. Som minor toxicity was observed sporadically in July and August. By 8/22/17, toxin levels were <44ug/100g and remained at that level for the rest of the year. All other monitoring stations in NH showed <44ug/100g for the entire year)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (NEW HAMPSHIRE DEPARETMENT OF ENVIRONMENTAL SERVICES PSP MONITORING PROGRAM)
Event occurred before in this location: Yes (Multiple years with toxicity)
Individuals to contact: NASH, Chris

Location & Date

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Location: Latitude: , Longitude:
General location information: , New Hampshire
HAB Area code(s): US-03
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Microalgae

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

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
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Sechhi disk (m): Salinity: Current Velocity:
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Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
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Growth:
Growth Comments
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Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
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Economic losses:
Management decision:
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Created at 04:46 on 24 Apr 2018
Updated at 04:09 on 26 Jun 2020
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES