General Information

Event name: US-15-022
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: <0.8 - 5.5 ppm DA in Mytilus edulis)
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Maine Department of Marine Resources Shellfish Growing Area Program: Biotoxin Monitoring)
Event occurred before in this location: Yes
Individuals to contact: Siois, Alison

Location & Date

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Location: Latitude: , Longitude:
General location information: Western Maine and Eastern Maine, Maine
HAB Area code(s): US-01
Additional location information: Three regions: Western Maine WME (Rockland, Maine to Kittery, Maine) and Eastern Maine EME (Calais, Maine to Bass Harbor, Maine) between Rockland/ Blue Hill/Stonington areas (PENBAY)
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2015-06-01, End: 2015-09-01
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Pseudo-nitzschia spp. (>375000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: PenBay area has the most consistent Pseudo-nitzchia blooms during the season whereas WME and EME have intermittent and lower cells/L overall
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
Mytilus edulis Saxitoxins EME 484g WME 186g Other
Kit used: Type of kit used:
Additional information: High Performance Liquid Chromotography Post Column Oxidation (HPLC PCOX) used for saxitoxin detection and HPLC for domoic acid detection
Economic losses:
Management decision: Lower toxicity year for PSP monitoring and low to no detection of domoic acid ASP
Additional harmful effect information:
Created at 09:24 on 7 Feb 2017
Updated at 02:51 on 6 Feb 2020