General Information

Event name: US-20-010
Nature of the harmful event:
High Phyto concentration
Event directly affected:
Toxicity detected: No
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (StateHhealth Services, TAMU Cytobot)
Event occurred before in this location: Yes
Individuals to contact: WILES, Kirk

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Matagorda and Espitu Santo Bay, Texas
HAB Area code(s): US-18
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 2020-02-26, End: 2020-04-01
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis spp. (50 cells/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: 25 °C, Min: 16 °C
Salinity Range During Event: Max: 29.5, Min: 22
Bloom location in the water column:
Growth: Advected
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Oysters Okadaic Acid None LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses: Production loss was limited due to resource closures.
Management decision: Closed shellfish harvest
Additional harmful effect information:
Created at 11:30 on 19 Apr 2021