General Information

Event name: US-16-033
Nature of the harmful event:
High Phyto concentration
Event directly affected:
Other Terrestrial
Toxicity detected: No
Associated syndrome: OTHER
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Maryland Phytoplankton Monitoring Program)
Event occurred before in this location: Yes (Chincoteague Bay has annual blooms of Brown Tide.)
Individuals to contact: WAZNIAK, Cathy

Location & Date

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Location: Latitude: , Longitude:
General location information: Chincoteague Bay, MD
HAB Area code(s): US-10
Additional location information: May 18, 2016, bloom appears to have been a month long
Bloom event dates (yyyy/mm/dd): Start: 2016-05-18, End: 2016-06-18
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Aureococcus anophagefferens (140,448,000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: continuous monitoring showed concentrations were elevated (30-70 ug/L) through the end of June secchi readings were .2 meters or less in many areas. These counts are based on light microscopy, waiting on addiitonal data from 2016 Immunofluorescence flow cytometry analyses
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
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 06:41 on 23 Mar 2017