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General Information

Event name: US-07-017
Country: UNITED STATES
Nature of the harmful event:
 Mass mortalities
Event directly affected:
 Natural Fish
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (As I understand it there have been localized A. sanguinea events throughout the past all along the Texas coast. I do not have specifics on past events.)
Individuals to contact: Byrd, Meridith

Location & Date

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Location: Latitude: , Longitude:
General location information: Bolivar Peninsula, Texas and Mustang Island, Texas
HAB Area code(s): US-18
Additional location information: Large patch of discolored water seen 8/31/07 approximately 1 mile offshore of Mustang Island, TX. Water samples contained high levels of A. sanguinea. Sept 1-2 a fish kill comprised mostly of Gulf Menhaden was reported neaer Rollover Pass on Bolivar Peninsula. Water samples confirmed a bloom of A. sanguinea. Over 1,000,000 fish killed along the length of Bolivar Peninsula: gulf menhaden, silver perch, star drum, atlantic bumper, hardhead catfish, gafftop catfish, and atlantic cutlassfish. Smaller fish kill noticed inside the Galveston jetties near the Galveston Ship Channel assumed (but not confirmed) to be caused by the same bloom.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: No
Causative Species/Genus: Akashiwo sanguinea ( 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: 0
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES